dr® 3-point hitch trimmer/mower safety & operating instructions
Contents
1. gt Wrenches N 13 Position the Belt Guard and secure with the eight Flange Bolts using a 3 8 Wrench Flat Groove Idler Figure 39 20 DR 3 POINT HITCH TRIMMER MOWER Lee U Joint Grease Fitting Figure 40 Access Bolt Figure 41 Grease Fittings Your PTO Shaft was greased at the Factory so it will not need grease until the scheduled maintenance as listed at the beginning of this Chapter The Wheel Support should have been greased when the machine was assembled and also has a recommended grease maintenance listed Tools and Supplies needed e Flexible hose grease gun e Lithium grease e Clean cloth Note The U Joint Grease Fitting is sometimes located on the inside of the Joint The plastic Collar will need to be unclipped and pushed down to access the Fitting for this type 1 Wipe all dirt etc from the PTO Shaft grease fittings with a clean cloth 2 Apply no more than three pumps of quality general purpose lithium grease with a hand pumped grease gun to each of the two U Joint Grease Fittings Figure 38 3 Check the PTO Shaft Set Screw for tightness If it is not tight then remove it apply Thread Lock to the threads then reinstall and tighten the Set Screw 4 Wipe all dirt etc from the Wheel Support fitting with a clean cloth Figure 39 5 Apply quality general purpose lithium grease with a hand pumped grease gun to the Wheel Support Grease Fitting as needed Gre2. Chapter 6 Parts Lists and Schematic Diagrams Parts List Head and Wheel Assembly Note Part numbers listed are available through DR Power Equipment Ref Part Description 1 31117 Screw HWH 1 4 20 X 3 4 Taptite 2 11465 Bolt HCS FT 3 8 16 X 3 GR5 ZP 3 33350 Bolt Hex Flange 3 8 16 X 1 75 4 34325 Bolt Hex Flange 1 4 20 X 1 5 11152 Bolt HHCS 3 8 16 X 1 00 Lg 6 25311 Pin Cotter 5 32 X 2 7 32447 Guard Deflector w Label 8 24538 Pin Linch 3 16 X 1 9 16 9 12376 Bushing 766 ID 1 0 OD 10 32232 Caster 9 X 3 50 Wheel 11 32207 Support Wheel 12 32442 Label Strike Zone 13 13649 Label Danger Blade 14 31098 Can Anti Wrap 15 31101 Mow Ball Hex Bolt 16 31301 Bolt 3 8 16 X 1 GR5 ZP High HD 17 31099 Spacer 680 X 984 X 310 ZP 18 33432 Bracket Mounting Deflector Guard 19 32200 Pulley 3 5 ED A Profile V Belt 67 Shaft 20 11914 Key SQ 3 16 X 1 21 10851 Spacer 76 ID 1 50 OD 50 THK 22 34518 Wheel 9 X 3 50 4 23 10189 Grease Fitting 1 4 28 Straight 24 DR 3 POINT HITCH TRIMMER MOWER Nut Nylon Lock Flanged 3 8 16 Nut Nylon Lock 3 8 16 Low Profile Nut Nylon Lock Flanged 1 4 20 Pulley Idler B V Belt 1 75 ID Pulley Idler 31 V Belt 2 0 OD Washer Fender 1 4 IDX 1 OD Washer Flat 3 8 USS Pin Belt Guide 3 8 16 ZP Bushing 386 X 623 X 1 53 Bushing 384 ID 669
3. DR Power Equipment Serial No Toll free phone 1 800 DR OWNER 376 9637 Fax 1 802 877 1213 Order No guag Website www DRpower com A WARNING Read and understand this manual and all instructions before operating the DR 3 POINT HITCH TRIMMER MOWER Table of Contents Chapter Gereral Safety Rules tege 3 Chapter 2 Setting Up The DR 3 POINT HITCH TRIMMERIMOWER 6 Chapter 3 Operating The DR 3 POINT HITCH TRIMMERIMOMWER 14 Chapter 4 Maintaining The DR 3 POINT HITCH TRIMMERIMOWER 17 Chapter 5 Troubleshooting iieerenne a E E O E E E deM E eines 23 Chapter 6 Parts Lists and Schematic Diagrams cccceeesssessescseseseseesssescscaeseenensesscacacevensnssesscscaeaeanenensssusssacasavenenseesseseaeaneneneeets 24 Conventions used in this manual A DANGER This indicates a hazardous situation which if not followed will result in death or serious injury A WARNING WARNING This indicates a hazardous situation which if not avoided could result in death or serious injury A CAUTION CAUTION This indicates a hazardous situation which if not avoided could result in minor or moderate injury NO ce This information is important in the proper use of your machine Failure to follow this instruction could result in damage to your machine or property Serial Number and Order Number A Serial Number is used to identify your machine and is located on the Serial Number Label on your machine An Order Number is used
4. OD Ring Locking Washer Flat 1 2 USS Washer SAE Flat 1 2 ZP Washer Lock 1 4 Split ZP Washer Flat 3 8 USS Washer M10 Washer Lock 7 8 YZP Spacer 78 ID 2 OD 18 THK Bracket Strut Label Branding Shim 1 58 OD 1 19 ID 050 THK Shims 1 ID amp 38 ID 16 THK Guide Belt Wire Schematic Drive and Pivot Assembly 022515 27 CONTACT US AT www DRpower com Daily Checklist for the DR 3 POINT HITCH TRIMMER MOWER To help maintain your DR 3 POINT HITCH TRIMMER MOWER for optimum performance we recommend you follow this checklist each time you use your machine A WARNING WARNING Disengage PTO shut down the Tractor Engine remove the Key wait for all moving parts to come to a complete stop disconnect the PTO shaft from the Tractor then wait five minutes before performing any maintenance procedure or inspection on the Trimmer CUTTING CORDS Replace broken or frayed Cords TT MOW BALL and Cord Head Check the Mow Ball and Cord Head for wear and replace as needed GENERAL CONDITION Check the general condition of the machine e g nuts bolts welds etc A WARNING WARNING Disengage PTO shut down the Tractor Engine remove the Key wait for all moving parts to come to a complete stop disconnect the PTO shaft from the Tractor then wait five minutes before performing any maintenance procedure or inspection on the Trimmer End of Season and Stora
5. e Never allow children to operate the DR 3 POINT HITCH TRIMMER MOWER e Use extra care when approaching blind corners shrubs trees or other objects that may obscure your vision CONTACT US AT www DRpower com 3 Protecting yourself and those around you A WARNING WARNING This is a high powered machine with moving parts operating with high energy at high speeds You must operate the machine safely Unsafe operation can create a number of hazards for you as well as anyone else in the nearby area Always take the following precautions when using this machine e Keep in mind that the operator or user is responsible for accidents or hazards occurring to other people their property and themselves e Always wear protective goggles or safety glasses with side shields while trimming to protect your eyes from possible thrown debris e Avoid wearing loose clothing or jewelry which can catch on the machine s moving parts e We recommend wearing gloves while using this machine Be sure your gloves fit properly and do not have loose cuffs or drawstrings e Wear shoes with non slip treads when using your DR 3 POINT HITCH TRIMMER MOWER If you have safety shoes we recommend wearing them Do not use the machine while barefoot or wearing sandals with exposed toes or heels e Wear long pants while operating the DR 3 POINT HITCH TRIMMER MOWER e Use ear protectors or ear plugs rated for at least 20 dba to protect your hearing e Keep bystanders at
6. 2 Secure the Bolt with the Wing Nut INSTALLING THE PIVOT BOLT FOR PIVOT TRIMMING MOWING terrain Figure 25 that is higher or lower than Tractor Wheels such as ditches Bok pe 1 Install the Bolt into the left side slots location through the 3 Point Bracket Head SS Bracket _ and Trimmer Bracket Figure 26 2 Secure the Bolt with the Wing Nut e Checking 3 Point Bracket to PTO Shaft clearance Observe the Trimmer as it is lifted to ensure that the 3 Point Bracket does not contact the PTO Shaft If they do touch the Tractor may have a setting to limit the distance it is lifted off the ground to prevent contact See your Tractor user manual for details of Tractor settings Figure 26 14 DR 3 POINT HITCH TRIMMER MOWER SETTING WHEEL HEIGHT 1 Remove the Hitch Clip and remove the Wheel Assembly with Spacers Figure 27 2 Adjust the Spacers as desired with some under and some above the Support on the Shaft 3 Reinstall Wheel Assembly Spacers and Hitch Clip Spacers gt Note More Spacers under the Support will lower the Wheel and set the Trimmer Head Higher More Spacers on top of the Support will raise the Wheel and set the Trimmer Head Lower Engaging the Trimmer Head s Figure 27 1 Ensure that the Trimmer is lowered to the ground and all Guards are in place and properly secured before using 2 Set Tractor throttle at IDLE and engage the PTO 3 Increase Tractor throttle t
7. OD Spacer Speed Head Speed Head 4 Line Adapter Cord Plate Cord Pack 13 24 Pack Label DR Logo Silver 8 Ref Part Description 24 33333 25 16413 26 33331 27 35047 28 31092 29 31096 Spindle Trimmer 30 12697 31 11239 32 27660 33 36414 Cover Belt 34 34420 Mount Cover 35 32198 Idler Arm 36 32206 37 35048 38 35051 Spacer Idler 39 35018 Spring Tension 40 35045 Belt Drive 41 34385 42 34387 43 34403 44 34383 45 32443 46 32440 Label Pictogram Warning Schematic Head and Wheel Assembly 25 CONTACT US AT www DRpower com Parts List Drive and Pivot Assembly Note Part numbers listed are available through DR Power Equipment Bracket Three Point Bearing Taper Roller 25mm ID 62mm OD 18 25mm THK Bolt M8 X 20mm GR8 8 ZP W Bolt HCS 3 8 16 X 5 5 GR5 ZP Bolt M10 X 180mm P1 5 GR8 8 ZP Bolt HHCS 1 2 13 X 2 GR5 Bolt 3 4 10 X 9 5 GR8 YZP Bolt HHCS 3 8 16 X 2 5 LG Bolt Hex Flange 3 8 16 X 1 25 Bolt HHCS 3 8 16 X 1 1 4 GR5 Bolt HHCS 3 8 16 X 1 00 LG Bushing 1 385 ID X 1 629 OD X 1 5 L Pin Cotter 5 32 X 2 Gearbox 1 2 78 25mm Input amp Output Bracket Mounting Gear Box Left Bracket Mounting Gear Box Right Key Machine 8 X 7 X 40mm Din 6885 A Key Machine 8 X 7 X 25mm Din 6885 A Label Danger Gearbox Cover Nut Nylon Lock M10 1 5 Nut Nylon Lock Flanged 1 2 13 N
8. before you operate the unit Replace damaged or missing safety and information labels immediately KEEP HANDS and FEET AWAY ES E 540 RPM MAX De Not Operate Ve Caution come PTO SHAFT zez ROTATION NEVER LIFT THE TRIMMER MORE THAN 20 OFF OF GROUND OR EXCEED 35 OF HORIZONTAL ARTICULATION ON THE PTO SHAF MAXIMUM TRIMMING SPEED 2 MPH 1 3649 MAXIMUM TRANSPORT SPEED 7 MPH NEVER TRANSPORT THE TRIMMER WITHOUT THE TRANSPORT BOLT IN THE LOCKED POSITION ONLY OPERATE IN LOW GEAR WHEN TRIMMING e mg 32438 32442 Tractor Safety Information A DANGER DANGER YOUR DR 3 POINT HITCH TRIMMER MOWER is driven by a PTO shaft that transfers power from your Tractor The Tractor and PTO shaft are extremely dangerous and can cause serious injury or death if not used properly Read and understand all of the Warnings and operating instructions that came with your Tractor and the PTO shaft to protect yourself from severe injury or death Safety for Children and Pets AL WARNING WARNING Tragic accidents can occur if the operator is not alert to the presence of children and pets Children are often attracted to the machine and the trimming activity Mever assume that children will remain where you last saw them Always follow these precautions e Keep children and pets out of the working area and under the watchful care of a responsible adult e Be alert and turn the machine off if children or pets enter the work area
9. by turning the Mow Ball counterclockwise when looking down on the top of the Frame Figure 23 Figure 22 12 Remove the Screwdriver A WARNING Always make sure you remove the screwdriver from the head assembly when finished Failure to remove the screwdriver could cause injury when the head assembly is engaged Cord Head es Mow Ball Molded Spacer Figure 23 12 DR 3 POINT HITCH TRIMMER MOWER Greasing the Wheel Support Tools needed e Flexible hose grease gun e Lithium grease e Clean cloth 1 Apply a quality general purpose lithium grease with a hand pumped grease gun to each of the Support Grease Fitting Figure 24 Grease Fitting x 4 E The Assembly and installation of your DR Trimmer Mower is now complete Proceed to the next Chapter Operating the DR 3 POINT HITCH TRIMMER MOWER for operating instructions Figure 24 CONTACT US AT www DRpower com 13 Chapter 3 Operating The DR 3 POINT HITCH TRIMMER MOWER A WARNING WARNING e This machine is designed to operate at 540 rpm PTO Shaft speed only Never operate at a faster speed doing so can cause serious injury to the operator or bystanders and could cause damage to the machine that is not covered under warranty e Read and understand your Tractor users manual and all Tractor safety Warnings for operating your Tractor safely before operating this DR 3 Point Hitch Trimmer Mower Operation Notes e See the Owner s Ma
10. has clearance holes The Plates must be in the correct order for proper assembly 21 Assemble the Plates ensuring that they are aligned properly and the Springs and Cams are seated fully into the Plate grooves The four Screw holes must be aligned and the two halves of the side cutouts should align from Outlet Cutout Plate to Plate Figure 35 Figure 34 22 Secure the Cord Head assembly with the four Screws using a 3mm Allen Wrench 23 Reinstall the Cord Head as described in the Replacing the Mow Ball or Cord Head section A WARNING WARNING Always make sure you remove the screwdriver from the head assembly when finished Failure to remove the screwdriver could cause injury when the head assembly is engaged Inlet Cutout Belt Guard Replacing the Drive Belt Coe Use only DR belts on your machine Do not use hardware store variety belts Tools needed Flange Bolts e 3 8 Wrench Figure 36 Two 9 16 Wrenches e 9 16 Deep Socket and Ratchet 1 Remove the eight Flange Bolts from the Belt Guard using a 3 8 Wrench Figure 36 2 Lift the Belt Guard from the machine 3 Remove the two Belt Guide Pins at the head of the Trimmer using two 9 16 Wrenches Figure 37 Note Observe the orientation of the Belt Guides in the next step They must be positioned in this way when reinstalled 4 Loosen the two Belt Guides of the Gearbox Pulley using two 9 16 Wrenches and rotate them out of t
11. least 100 feet away from your work area at all times The tips of the cutting cords on the DR 3 POINT HITCH TRIMMER MOWER can throw sticks small stones gravel and bits of debris over long distances at great velocity Do not travel over loose materials such as gravel or mulch with the trimmer head spinning Doing so could cause personal injury or property damage from thrown objects Disengage the PTO Shaft to stop the spinning cords and shut off the Tractor engine when another person or pet approaches e Never tamper with safety devices Check their proper operation regularly e Never operate the machine when under the influence of alcohol drugs or medication Operating the Trimmer Mower Safely A WARNING WARNING This is a high powered machine with moving parts operating with high energy at high speeds You must operate the machine safely Unsafe operation can create a number of hazards for you as well as anyone else in the nearby area Always take the following precautions when using this machine e Do not have the Trimmer engaged or resting on the ground when backing up The machine is designed to trim and roll on the Wheel in the forward direction only Trimming or rolling on the Wheel in the reverse direction could damage the machine and is not covered by the Warranty e Know how to stop the Trimmer quickly by disengaging the PTO Shaft and shutting down the tractor e Never allow people who are unfamiliar with these instructions to use t
12. one flat spline Figure 11 Continue to the following section to attach the PTO Shaft to the Tractor and Trimmer Attaching the PTO Shaft to the Tractor and Trimmer Note The PTO Driveshaft provided with your new machine is sized to fit a standard category 1 PTO 1 3 8 DIA x 6 Spline The PTO Spline Shaft on the tractor that is to use this machine must rotate clockwise when viewing the PTO from the rear of the tractor If the PTO rotates counterclockwise you must have your tractor modified by installing a gearbox to reverse the direction of rotation The length of the PTO Driveshaft that is included with your new machine will work in most instances but may need to be modified See Calculating Length of PTO Shaft needed for checking the PTO Shaft length desired and then Modifying the PTO Shaft if required instructions if the PTO Shaft is too long Kasa You must install the Key supplied in the Product Package where the PTO shaft attaches to the Trimmer Gearbox Failure to install the Key will result in damage to the machine and is not covered under warranty Sch Bearing fave Ring Tools Needed e 4mm Allen Wrench Figure 13 1 Open the Gearbox Guard as described on page 8 Bearing o Ring Slot 2 Insert the Key into the Trimmer Gearbox Shaft Figure 15 Gearbox Shaft Figure 14 Figure 15 10 DR 3 POINT HITCH TRIMMER MOWER 3 Align the Key Slot of the PTO Shaft with the Key in the Shaft an
13. y Zone Label ace Se 3 e Approach obstacles fence posts etc so the impact zone will be within the area of the Optimum Impact Zone Label Figure 29 This will ensure the best spring action and trimming coverage around the obstacle e If you do run into debris and the Trimmer becomes tangled disengage PTO shut down the Tractor Engine remove the Key wait for all moving parts to come to a complete stop then wait five minutes for parts to cool before attempting to untangle the machine Figure 29 e Never Trim or let the Wheel rest on the ground with the Tractor in reverse Heavy Growth e Take your time in heavy growth e Ifthe machine cannot do it all in one pass overlap half of the cutting swath e Ease the DR 3 POINT HITCH TRIMMER MOWER into denser growth Ifthe material is too tough or woody to cut the Cutting Cords will wrap around it wear down or even break off Tip Use the two pass one half overlap method whenever possible Wet Conditions Because there is no housing to restrict the flow of cut material you can also use your DR 3 POINT HITCH TRIMMER MOWER to mow wet or heavy growth You can use the Trimmer in damp conditions after a rain or in the early morning dew without clogging or stalling You can also mow wet areas such as ditches and around ponds Slopes Refer to your Tractor Users Manual for slope safety information and operation guidelines Windrows The DR 3 POINT HITCH TRIMMER MOWER Cutt
14. 10 Replace parts as needed and install them onto the shaft in the order shown 11 Place the head of the Mow Ball Bolt so it is sitting in the hex cavity at the bottom of the Mow Ball 12 Looking down at the top of the Frame hold the Bolt Head in place with your finger and turn the Mow Ball counterclockwise to start the Bolt into the Shaft 13 Tighten the assembly securely by turning the Mow Ball counterclockwise when looking down on the top of the Frame 14 Remove the Screwdriver AL WARNING WARNING Always make sure you remove the screwdriver from the head assembly when finished Failure to remove the screwdriver could cause injury when the head assembly is engaged Cleaning the Cord Head Tools Needed e 3mm Allen Wrench e Clean Rags e Nylon Brush 15 Remove the Cord Head as described in the Replacing the Mow Ball or Cord Head section 16 Remove the four Screws using a 3mm Allen Wrench Figure 33 17 Remove the Springs and Locking Cams from the Middle and Bottom Plates Locking and clean any grass or debris from the Springs and Cams 18 Clean all Plates using a Nylon Brush and clean Rag to remove all grass and dirt 19 Inspect the Springs and Cams for damage If any parts are damaged please call DR Power to order a replacement assembly 20 Reinstall the Springs and Locking Cams into the middle and bottom Plates Figure 34 Note The Bottom Plate has threaded holes and the middle Plate
15. Insert a Philips Head Screwdriver into the hole in the Anti Wrap Canister and the hole in the internal Housing 3 Rotate the Mow Ball Assembly until the Screw Driver slides into a hole in men e the shaft locking it into place i Anti Wrap Can 4 Looking down at the top of the Frame turn the Mow Ball clockwise until it unscrews completely from the Bearing Housing Note Ifthe Mow Ball continues to turn but does not come off check that you locked the Screwdriver into the shaft Ifthe Mow Ball will not turn by hand a 9 16 Molded Spacer can be above or below Cord Head e Socket can be used on the Bolt inside the bottom of the Mow Ball to loosen it You may need to clean grass or debris out of the recess first 5 Slide the Cord Head Adapter and Molded Spacer off the Shaft Figure 22 6 The Anti Wrap Can and Spacer should remain on the Shaft with the eo Screwdriver Adapter Hole St facing up 7 Make sure the Adapter is inserted into the top of the Cord Head as you EI Adapter Cord Head install the Cord Head onto the Shaft 8 Install the Molded Spacer onto the Shaft 9 Place the head of the Mow Ball Bolt so it is sitting inside the hex cavity at the bottom of the Mow Ball Mow Ball Mow Ball Bolt 10 Looking down at the top of the Frame hold the Bolt Head in place with your finger and turn the Mow Ball counterclockwise to start the Bolt into the Shaft 11 Tighten the assembly securely
16. POINT HITCH TRIMMER MOWER Specifications Tractor Requirements Category 1 25 to 45 HP Max Drive Tractor PTO PTO Speed 540 RPM Number of Trimmer Cords 4 Belt 6577BR Gates 134 3 8 L Belt Adjustment Spring Loaded Idler Pulleys Max Wheel Base distance from outside to outside of 63 rear wheels Cutting Height 3 7 5 in 3 4 5 on the head 3 in on the wheel in 1 2 increments Cutting Width 22 Machine Weight 225 Lbs Attaching the 3 Point Bracket to the Tractor SS it BE upper A WARNING WARNING Before performing the following procedure be sure your tractor engine is off brake is set and the key removed for safety Back Plate 1 Position the 3 Point Bracket at the rear of the Tractor with the Back Plate facing away from the back of the Tractor Figure 2 The opposite side of the 3 Point Bracket facing the Upper Draft Arm is open 3 Point Lower 2 Remove the Linch Pin from the top Hitch Pin and remove the Pin fromthe Hitch Pins SEH Bracket 3 Point Bracket Figure 2 3 Position the Upper Draft Arm inside the top portion of the 3 Point Bracket and align the Holes 4 Insert the Top Hitch Pin into the aligned holes and secure with the Linch Pi Hitch Pin and Clip in 5 Remove the Hitch Pins from the two lower side mounting Pins of the 3 Point Bracket Slide the Lower Draft Arms onto the lower Bracket Pins and secure with the Hitch Pins 6 Adjust the Lower Draf
17. PTO Shaft is too long for l GE Guard your set up shorten the Shaft as follows Tools and Supplies Needed e Hacksaw e Bench Vise Bearing e Tape Measure Tab e File e General purpose Lithium Grease Note Your actual PTO Shaft may look different than the one shown in these steps Figure 9 but the procedures are the same 1 Separate the PTO Shaft Halves by pulling them apart 2 Separate the Guards from the PTO Shaft Halves by inserting a flat tip screwdriver into the Bearing Tab Slots as you pull down on the Safety Guard to release the Safety Guard from the Shaft Figure 9 3 Measure and cut the ends of both Guards the required amount Figure 10 Note If you put the Guards in a vise to hold them be careful not to clamp it too tight because it could crack the plastic Cut This End Figure 10 CONTACT US AT www DRpower com Shaft Tube 4 Measure and cut each Shaft Tubes to the required length using the hacksaw Figure 11 5 File or sand any burrs from the Shaft ends Figure 12 6 Grease both Shaft Tubes and under the Bearing Rings of each Shaft Figure 13 7 Insert the Shaft Halves into the Guards making sure that the Bearing Ring Slot lines up with the Tab on the inside of the Guards for proper installation Figure 14 8 Slide the two PTO Shaft Halves together Note When inserting one half of the PTO Shaft to the other you must line up the splines correctly two pointed splines and
18. asing the Gearbox The Gearbox is greased at the factory but may require grease to be added after prolonged use Tools and Supplies needed Two 11 16 Wrenches 17mm Wrench Grease gun Mobil Multipurpose XHP Lithium Grease Clean cloth Note The Gearbox can hold 550ml 18 60z of Mobil Multipurpose XHP Lithium Grease We recommend the Gearbox be completely filled with Grease 1 Remove the front Bolt Washers and Locknut from the Gearbox Guard with two 11 16 Wrenches Figure 40 2 Slightly loosen the rear Bolt Washers and Locknut of the Gearbox Guard with two 11 16 Wrenches 3 Rotate the Gearbox Guard up away from the Gearbox 4 Remove the Access Bolt using a 17mm Wrench Figure 41 5 If the Gearbox is not completely full add Grease as needed to fill CONTACT US AT www DRpower com 21 Replacing the Caster Wheel Tools Needed e Pliers 1 Remove the Hitch Clip with Pliers and remove the Wheel Assembly with Spacers Figure 42 e Install the new Wheel Assembly and Spacers w Secure with the Hitch Clip Check the Tire Pressure Tools Needed Tire Pressure Gauge Air Compressor 4 Remove the Valve Stem Protective Cap Figure 43 and check the tire pressure with a Tire Pressure Gauge 5 Check what the manufacturers recommended pressure is that is stamped on the side of the Tire 6 Ifthe pressure reading is too low add air through the Valve Stem with an air hose 7 Replace the Valve Stem Protec
19. cate PTO Shaft and Wheel Support Grease A Fittings Check Belt tension and condition A Lubricate PTO Shaft Spline ends and center overlap A Replace the Belt A Grease pivot bearings and gearbox A Maintenance position Many maintenance procedures can be performed easier by positioning the Trimmer in an upright maintenance position This position is for maintenance purposes only Do not transport or operate the Trimmer in the upright position WARNING WARNING e Two people are required when setting the Trimmer Body to the maintenance position One person must steady the Trimmer as the other installs the Bolt Do not allow the Trimmer Body to go beyond vertical and fall in the opposite direction without the Bolt in place as this could cause injury to you or damage the Trimmer e Never transport the Trimmer in the Maintenance position This could damage the machine and is not covered by the Warranty 1 Remove the Bolt and Wing Nut that is holding the Trimmer in the trimming operating positions 2 Lift the Trimmer Body up to a vertical position With the head of the Bolt facing the Tractor install the Bolt all the way into the transport hole of the 3 Point Bracket Figure 30 Figure 30 3 Let the Trimmer Mounting Bracket rest against the Bolt to hold it in the vertical maintenance position CONTACT US AT www DRpower com 17 Anti Wrap Canister Spacer Cord H
20. cut and pull away from the Trimmer Head If the Cord breaks off flush at the Cord Head use needle nose pliers to pull out the old Cord UV light can degrade cord store out of direct sunlight CONTACT US AT www DRpower com 15 _ ____ __i_____________ Preparing the Trimmer Mower for Transport A WARNING Always disengage the PTO Shaft before lifting the Trimmer off the ground or transporting the Trimmer to prevent injury or damage to the machine 1 On the right hand side of the machine trimmer head side align the holes of the Trimmer with the holes in the 3 Point Hitch Bracket Insert the Locking SEA e Bolt through the holes Figure 28 Transport fl ch 2 Secure the Bolt with the Wing Nut Position Note Observe the Trimmer as it is lifted to ensure that the 3 Point Bracket does not Figure 28 contact the PTO Shaft If they do touch the Tractor may have a setting to limit the distance it is lifted off the ground to prevent contact See your Tractor user manual for details of Tractor settings 3 Lift the Trimmer off the ground with the Tractor 3 Point Hitch before transporting to prevent hitting any obstacles Obstacles Dealing with obstacles in the terrain is easy with your new DR 3 POINT HITCH TRIMMER MOWER The following section explains how to approach most common obstacles e Always check your work area before trimming and remove any debris that might tangle or damage the machine ees Impact hs
21. d slide it onto the Shaft Figure 16 Note Do not allow the PTO Shaft to contact the Gearbox The Gearbox Shaft end should be flush with the inside of the U Joint 4 Secure the PTO Shaft by tightening the Set Screw with a 4mm Allen Wrench P Note If you plan to leave the Trimmer attached to the Tractor for extended periods Gr bh M i Set Screw apply thread lock to the Set Screw to help secure it in place 5 Push in the Spring Pin at the end of the PTO Shaft and slide it onto the Tractor Spline Figure 17 When the PTO Shaft is started on the Tractor Spline Shaft release the Pin and continue to push the PTO Shaft until the Spring Pin locks into the Groove of the Tractor Spline 6 Attach the Safety Chain of the PTO Shaft around a solid area of the 3 Point Bracket with the Chain ends attached to both ends of the PTO Shaft Guard Figure 16 Figure 18 Make sure the Chain has enough slack in the full range of the Tractor 3 Point Arm travel 7 Lower the Gearbox Guard and install the front Bolt Washers and Locknut with two 11 16 Wrenches Figure 19 8 Tighten the rear Gearbox Guard hardware with two 11 16 Wrenches Gearbox Installing Trimmer Cords Note Cutting height adjustments can be made as you learn the trimming characteristics of the machine in the Operating the DR 3 Point Hitch Trimmer Mower in the next Chapter Always make sure to install all four Trimmer Cords and ensure they are the same lengt
22. ead Loosen Mow Ball Figure 31 ae i Anti Wrap Can Molded Spacer can be above or below Cord Head Adapter Cord Head i Adapter Hole O 2 facing up A e e Mow Ball 28 Ke Figure 32 Adapter Screw O ie 4 Places Top Plate Middle Plate Locking Cam 4 Places Bottom Plate Figure 33 18 DR 3 POINT HITCH TRIMMER MOWER Screw Driver Replacing the Mow Ball or Cord Head Tools and Supplies Needed e Phillips head Screwdriver with at least a 6 shank e Gloves 4 Align the hole in the Anti Wrap Canister with the hole in the internal housing at the location shown Figure 31 5 Insert a Philips Head Screwdriver into the hole in the Anti Wrap Canister and the hole in the internal Housing 6 Rotate the Mow Ball Assembly until the Screw Driver slides into a hole in the shaft locking it into place 7 Looking down at the top of the Frame turn the Mow Ball clockwise until it unscrews completely from the Bearing Housing Note If the Mow Ball continues to turn but does not come off check to be sure that you locked the Screwdriver into the shaft If the Mow Ball will not turn by hand a 9 16 Socket can be used on the Bolt inside the bottom of the Mow Ball to loosen it You may need to clean grass or debris out of the recess first 8 Slide the Cord Head Adapter and Molded Spacer off the Shaft Figure 32 9 The Anti Wrap Can and Spacer should remain on the Shaft with the Screwdriver
23. ge e Lubricate PTO Shaft Grease Fittings e Check the Drive Belt for wear Replace as needed e Release Drive Belt from Tensioner to relieve Belt stress e Check the general condition of the machine e g nuts bolts welds etc Replace parts or tighten Hardware as needed e Store in a dry covered area to protect from moisture e Remove any wrapped weeds from the Mow Ball and Wheel Assembly Clean grass and debris from the top and underneath the Trimmer Frame Qa o w 75 MEIGS ROAD P O BOX 25 VERGENNES VERMONT 05491 2015 Country Home Products Inc All rights reserved 364161
24. h Not having all four Cords installed and or at the same length will Figure 17 cause excessive vibration and could damage the machine 1 Insert the end of a Trimmer Cord into the inlet hole larger slotted cutout _3 Point Bracket eo e push it in until the end protrudes out the other side approximately 1 2 d Safety Chain Figure 20 2 Turn the Cord Head 90 degrees and repeat the installation until all Cords are installed Note The Cord can only move through the Cord Head in one direction To remove it you must pull it from the other side of the Holder where the 1 2 end is NOTICE O Running the trimmer without all four cords installed or cords of unequal length can cause excessive vibration and may damage the machine Figure 18 Cord Head Trimmer Inlet Cord Approx 1 2 Front Hardware Figure 19 Figure 20 CONTACT US AT www DRpower com 11 Cord Head Height Adjustment Screw Driver BS Note The Cord Head can be located above or below the Molded Spacer giving you a bech om 1 1 2 range in trimming height The following steps show moving the Cord Head from below the Molded Spacer to on top of the Molded Spacer Tools and Supplies Needed e Phillips head Screwdriver with at least a 6 shank e Gloves Molded Spacer 1 Align the hole in the Anti Wrap Canister with the hole in the internal housing Cord Head at the location shown Figure 21 Figure 21 Mow Ball 2
25. he DR 3 POINT HITCH TRIMMER MOWER Allow only responsible individuals who are familiar with these rules of safe operation to use your machine e Do not exceed 2 mph when trimming to allow proper cutting and discharge of material e Do not exceed 7 mph when transporting to prevent damage to the machine e Operating your 3point trimmer with the head misaligned with the ground can result in poor cut quality pivoting problems scalping during cutting wear on your equipment and damage to the cutting cord e Never place your hands feet or any part of your body on or under the mower deck in the path of the spinning cords belt pulleys or near the discharge opening while the tractor is running Keep area of discharge clear of people animals buildings glass or anything else that will obstruct clear discharge cause injury or damage e Your DR 3 POINT HITCH TRIMMER MOWER is a powerful tool not a plaything Exercise extreme caution at all times The design of your machine is for trimming and mowing grass weeds and other growth as specified in this manual Do not use it for any other purpose e Whenever you leave the operating position to make adjustments change cords or if you have to remove grass or debris from the underside of the deck always disengage PTO shut down the Tractor Engine remove the Key wait for all moving parts to come to a complete stop disconnect the PTO shaft from the Tractor then wait five minutes before performing any mainte
26. he way Figure 37 CONTACT US AT www DRpower com 19 5 Position the 9 16 Deep Socket and Ratchet onto the Bolt of the Flat Groove Idler Pulley The Ratchet Handle and Idler Arm must be aligned for the pivoting of the Arm to work properly Figure 38 Tension Spring 6 Pull on the Ratchet to rotate the Idler Arm towards the Gearbox Pulley and slide the Belt off the V Groove Idler Pulley Me z Flat Groove ee Ea 7 Allow the Ratchet to return back towards the Spring until the Idler Arm is in e n line with the Tension Spring wy 5 l 8 Remove the Belt from the Trimmer Head Pulley and the main Drive Pulley w l AN Idler Arm V Groove AW Idler Pulley 9 Install the new DR Drive Belt around the main Drive Pulley and the Trimmer Head Pulley Ensure that the V of the Belt is in the V of the Pulleys and there are no twists in the Belt Figure 38 Note Make sure the Belt is on the outside of the Frame Mounted Belt Guides and on the inner side of the Flat Groove Idler Pulley Figure 39 10 Rotate the Idler Arm towards the Gearbox Pulley with the Ratchet and 9 16 Deep Socket Ratchet Handle in line with the Idler Arm and position the Belt around the Flat Groove Pulley and then around the V Groove Pulley Figure 38 11 Adjust and tighten the two Belt Guides at the Gearbox Pulley KS ie e E 12 Install the Belt Guide Pins at the Head of the machine using two 9 16 ny
27. ing Cords cut even tall grass in just one pass so you can collect clippings and leaves for mulch without raking The machine ejects cut material to its right side so you can use it like a lawn broom to make windrows for easy clean up Firebreaks Use your Trimmer as a labor saving tool to cut material when creating firebreaks 16 DR 3 POINT HITCH TRIMMER MOWER WE Chapter 4 Maintaining The DR 3 POINT HITCH TRIMMER MOWER Regular maintenance is the way to ensure the best performance and long life of your machine Please refer to this manual for maintenance procedures A WARNING WARNING Disengage PTO shut down the Tractor Engine remove the Key wait for all moving parts to come to a complete stop disconnect the PTO shaft from the Tractor then wait five minutes before performing any maintenance procedure or inspection on the Trimmer Regular Maintenance Checklist Note Consider that the service intervals shown are the maximum under normal operating conditions Increase frequencies under extremely dirty or dusty conditions See the Owners Manual that came with the Tractor and with the PTO Shaft for Specific Tractor and PTO Shaft maintenance PROCEDURE BEFORE Every 8 10 Every 18 Every 50 Every 100 EACH USE HOURS 20 HOURS HOURS HOURS Check General Equipment Condition e g Nuts Bolts A Welds etc Replace broken or frayed Cutting Cords A Check the Mow Ball and Cord Head for excessive A wear Lubri
28. nance procedure or inspection on the Trimmer 4 DR 3 POINT HITCH TRIMMER MOWER pt Operating the Mower Safely continued A WARNING WARNING e Be mindful of roll over hazards changes in terrain slopes or wet conditions Use care when backing up e Stop the cutting cords when crossing gravel drives walks or roads e Never under any conditions remove bend cut fit weld or otherwise alter standard parts on the DR 3 POINT HITCH TRIMMER MOWER This includes all shields and guards Modifications to your machine could cause personal injuries and property damage and will void your warranty e Ifthe cutting cords strike a foreign object or if your machine should start making an unusual noise or vibration disengage PTO shut down the Tractor Engine remove the Key wait for all moving parts to come to a complete stop disconnect the PTO shaft from the Tractor then wait five minutes before inspection Vibration is generally a warning of trouble Clean and repair and or replace damaged parts e While using the DR 3 POINT HITCH TRIMMER MOWER do not hurry or take things for granted When in doubt about the equipment or your surroundings stop the machine and take the time to look things over Make sure that you have 100 control of the Trimmer at all times e Watch for traffic when mowing near roadways e Use the machine only in daylight e Be cautious when using your DR 3 POINT HITCH TRIMMER MOWER around fencing wires ropes and hoses I
29. ne if modifications are needed Without the PTO Shaft installed use the table below to record the dimensions as outlined in the following steps A WARNING WARNING The minimum recommended overlap of the tubes at the center of the PTO Shaft should be 6 Using a PTO Shaft with less than 6 overlap may fail and cause machine damage or personal injury Tools Needed e Two 11 16 Wrenches TRACTOR SPLINE SHAFT TO GEARBOX SHAFT MEASUREMENTS ON GROUND inches SHAFTS LEVEL Inches Figure 7 FULLY RAISED Inches Note Install the Locking Bolt as described in the paragraph INSTALLING THE head LOCKING BOLT FOR PARALLEL TRIMMING MOWING in the Preparing the Spline Sha l gaua Trimmer Mower for Trimming section in Chapter 3 Trimmer 1 Remove the front Bolt Washers and Locknut from the Gearbox Guard with Gearbox Shaft two 11 16 Wrenches Figure 7 2 Slightly loosen the rear Bolt Washers and Locknut of the Gearbox Guard with two 11 16 Wrenches 3 Rotate the Gearbox Guard up away from the Gearbox Shaft fe 4 Lower the Trimmer all the way to the ground in the operating position ES Figure 8 Measure from the end of the Tractor Spline Shaft to the end of the c meee D stance Trimmer Gearbox Shaft and record this dimension in the ON GROUND row Figure 8 of the table above 8 DR 3 POINT HITCH TRIMMER MOWER 5 Raise the Trimmer up until the Tractor PTO S
30. nual that came with your Tractor for all safety warnings and detailed information for operating your Tractor properly Always operate the Tractor PTO at 540 RPM when trimming Always disengage the PTO lock the Parking Brake and shut off the Tractor when leaving the Tractor Seat Never transport the Trimmer while the PTO is turning e Do not have the Trimmer engaged or resting on the ground when backing up The machine is designed to trim and roll on the Wheel in the forward direction only Trimming or rolling on the Wheel in the reverse direction could damage the machine and is not covered by the Warranty Remove any debris buildup from the machine before every use of the Trimmer Always install the Locking Bolt and Wing Nut into the transport holes of the 3 Point Bracket and Trimmer when transporting the Trimmer See Preparing the Trimmer Mower for Transport in this Chapter Preparing the Trimmer Mower for Trimming The characteristics of cutting height and quality is controlled by the position of the Trimmer Cords location of Locking Bolt Wheel Spacer arrangement and height of Tractor PTO lift Arms It takes time and practice to learn what the best combinations of settings for different conditions are INSTALLING THE LOCKING BOLT FOR PARALLEL TRIMMING MOWING terrain that is level with Tractor Wheels 1 Install the Bolt into the right side holes location through the 3 Point Bracket and Trimmer Bracket Figure 25
31. o the RPM s required to obtain 540 PTO speed Note See your Tractor manual for detailed information on Tractor operation Stopping the Cords from Spinning 1 Reduce Tractor throttle to IDLE 2 Disengaging PTO to stop the Trimmer Cord Tips We ship two 2 thicknesses of Cutting Cord with your DR 3 POINT HITCH TRIMMER MOWER The Cords are Blue 175 mil and Green 155 mil Because conditions and vegetation vary so much you should experiment with Cord weights diameters to discover what works best for your particular mowing and trimming situations Here are a few things to keep in mind e If you buy Cutting Cord in rolls cut it in 13 lengths Cut them at an angle so they will be easier to install e Soak your Cutting Cord in a bucket of room temperature water for a few days before use to make it more pliable Storing the Cord in a plastic bag with a damp sponge or cloth will help keep it pliable Cord life depends on trimming conditions Replace Cords when they become broken or frayed The smallest diameter Cord capable of cutting the material at hand usually provides the best grass trimming performance When you need more strength for thicker growth such as berry canes brambles thistles or ragweed you may want to use the 175 mil Cord Ease the ends of the Cord into heavy growth and move slowly through thick growth If there are woody weeds in the material you are cutting the cutting Cords may wrap around the stalks they cannot
32. pline and Trimmer Gearbox Shaft are parallel with each other Measure from the end of the Tractor Spline Shaft to the end of the Trimmer Gearbox Shaft and record this dimension in the SHAFTS LEVEL row of the table above 6 Raise the Trimmer up as far as it will go Measure from the end of the Tractor Spline Shaft to the end of the Trimmer Gearbox Shaft and record this dimension in the FULLY RAISED row of the table above Note If your longest measurement exceeds 37 you will require a longer PTO Shaft Do not proceed with installation until you have a longer PTO Shaft If you have any questions please visit us at www DRpower com or call 1 800 DR OWNER 376 9637 7 Take the shortest recorded measurement you wrote in the table and add 2 8 Take that number and subtract it from 32 overall compressed length of the supplied PTO Shaft 9 This final number is the length that you will need to cut off of the PTO Shaft for it to fit properly to your Tractor EXAMPLE Let s assume the shortest center to center measurement in the table is 27 e 27 2 29 step 4 above e 32 29 3 step 5 above e You would be required to cut 3 off both halves of the PTO Shaft and 3 off the Guard Note If you end up with 0 or a negative number then no changes are needed until you reach a maximum long measurement of 37 as indicated on previous page Modifying the PTO Shaft if required Safety If you have determined in the previous steps that the
33. t Arms as needed to center the 3 Point Bracket and then lock the Lower Draft Arms to keep them from swinging side to side Figure 3 See your Tractor Operator manual for specific instructions to set Draft Arm position Attaching the Trimmer Mower to the 3 Point Bracket Ee LGA E Pivot Pin 1 Remove the Hitch Pin with Clip from the Locking Ring and remove the Ring Figure 3 Note Leave the Pivot Washer on the Pivot Pin The bevel should be facing the Trimmer Mower 2 Slide the Pivot Pin into the Mounting Hole of the 3 Point Bracket as far as it will go Figure 4 d bevel on this side Figure 4 CONTACT US AT www DRpower com 7 Hitch Ginz 3 Secure the Pivot pin to the 3 Point Bracket with the Locking Ring and Hitch Pin with Clip Figure 5 Installing the Wheel Assembly 1 Remove the Hitch Pin and Spacers from the Wheel Shaft Figure 6 2 Insert the Wheel Shaft into the Wheel Support from underneath install the Spacers on top and secure with the Hitch Pin Note The Wheel height can be adjusted as needed This procedure will be discussed later in Chapter 3 Operating the DR 3 Point Hitch Trimmer Mower Calculating length of PTO Shaft needed The PTO Shaft provided with your Trimmer is 32 overall compressed length and will work as is for most applications Before you install the PTO Shaft it is good practice to run through the following dimension checks to calculate optimum PTO Shaft length to determi
34. t is possible that these and other debris can become wound around the Cord Head of the machine potentially damaging the bearings or injuring you e Do not operate the DR 3 POINT HITCH TRIMMER MOWER on slopes greater than is recommended in your Tractor manual e Keep all nuts and bolts tight and keep the equipment in good operating condition A Note to All Users No list of warnings and cautions can be all inclusive If situations occur that are not covered by this manual the operator must apply common sense and operate this DR 3 POINT HITCH TRIMMER MOWER in a safe manner Contact us at www DRpower com or call 1 800 DR OWNER 376 9637 for assistance CONTACT US AT www DRpower com 5 Les Chapter 2 Setting Up The DR 3 POINT HITCH TRIMMER MOWER It may be helpful to familiarize yourself with the controls and features of your DR 3 POINT HITCH TRIMMER MOWER as shown in Figure 1 before beginning these procedures If you have any questions at all please feel free to contact us at www DRpower com DR 3 POINT HITCH TRIMMER MOWER Controls and Features Upper Hitch Pin gt 3 Point Hitch Bracket Lower Hitch Gearbox i d Cutting Cord PTO Shaft Pneumatic Moine Caster Wheel Drive Pulley Belt Wheel Height Belt Guide Adjustment Spacers N 4 Places Trimmer Guard Collar and Pin Springback Assembly Locking Bolt with Wing Nut Belt Tension Pulleys Figure 1 6 DR 3
35. tive Cap when finished A WARNING Do not over inflate the tires Inflate to the manufacturers recommended pressure found on the tires Figure 43 22 DR 3 POINT HITCH TRIMMER MOWER Lee Chapter 5 Troubleshooting Most problems are easy to fix Consult the Troubleshooting Table below for common problems and their solutions If you continue to experience problems contact us at www DRpower com or call toll free 1 800 DR OWNER 376 9637 for support A WARNING WARNING Disengage PTO shut down the Tractor Engine remove the Key wait for all moving parts to come to a complete stop disconnect the PTO shaft from the Tractor then wait five minutes before performing any maintenance procedure or inspection on the Trimmer Troubleshooting Table SYMPTOM POSSIBLE CAUSE Poor cut quality gt Cord needs to be replaced Tractor speed too fast Scalping gt Armor wheel adjustment is off Check for frame level or height of hydraulic arms on tractor Machine stops cutting gt Inspect cords gt Check belt tension wear gt Check PTO rotation The Trimmer Head Check for proper alignment of the V Belt Check it against the Replacing the Drive Belt won t spin or lacks section on page 19 power The Belt may be worn or frayed if so replace it H none of the above helps visit our web site at www DRPower com or call 1 800 DR OWNER 376 9637 for assistance CONTACT US AT www DRpower com 23
36. to check and maintain your order history and is located on the upper left portion of your packing slip For your convenience and ready reference enter the Serial Number and Order Number in the space provided on the front cover of this manual Additional Information and Potential Changes DR Power Equipment reserves the right to discontinue change and improve its products at any time without notice or obligation to the purchaser The descriptions and specifications contained in this manual were in effect at printing Equipment described within this manual may be optional Some illustrations may not be applicable to your machine 2 DR 3 POINT HITCH TRIMMER MOWER pt Chapter 1 General Safety Rules A WARNING WARNING Read this Safety amp Operating Instructions manual before you use the DR 3 POINT HITCH TRIMMER MOWER Become familiar with the operation and service recommendations to ensure the best performance from your machine If you have any questions or need assistance please contact us at www DRpower com or call toll free 1 800 DR OWNER 376 9637 and one of our Technical Support Representatives will be happy to help you Labels Your DR 3 POINT HITCH TRIMMER MOWER carries prominent labels as reminders for its proper and safe use Shown below are copies of the Safety and Information labels that appear on the equipment Take a moment to study them and make a note of their location on your DR 3 POINT HITCH TRIMMER MOWER as you set up and
37. ut Nylon Lock 1 2 20 Gr5 ZP Nut Hex 1 2 20 Gr5 ZP Nut Wing 3 4 10 ZP Nut Hex 7 8 9 YZP Nut Slotted 3 4 10 ZP Nut Nylon Lock Flanged 3 8 16 Ref Part Description 1 32374 2 32205 3 32400 Locking Patch 4 29373 5 32395 6 11144 7 32376 8 15069 9 33351 10 15043 11 11152 12 15072 13 25311 14 36412 Frame w Labels 15 32195 Shafts 16 32381 Guard Gearbox 17 33425 18 33426 19 32399 20 32398 21 32438 22 30249 23 33335 24 32391 25 32390 26 32387 27 32380 28 32233 29 33333 30 32378 26 Pin PTO Class 1 Draw DR 3 POINT HITCH TRIMMER MOWER O aaa 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 24555 24538 32396 32397 32204 32386 32409 32208 32401 32201 32372 32389 34330 32371 15138 32388 10179 23499 10181 11239 30250 32379 32234 32408 32439 25453 26568 35046 Ref Part Description Pin Hitch 3 4 X 4 3 4 Pin Linch 3 16 X 1 9 16 Pin Linch 7 16 X 1 5 YZP Pin Hitch 3 8 X 3 W Cotter Pin Base Pivot Bracket Pivot Lock Bracket Articulating Shaft Pivot Support PTO Shaft T20 1 3 8 Z6 amp 25mm W 8mm Key Yokes Pulley 9 ED A And B Profile V Belt 25 mm Shaft Rod End Ball Joint 1 2 20 Thread Fem Spring Limiter Spring Strut Rod Connecting 1 2 20 Male RH Thread 18 L Washer Pivot 1 375 ID 2 0
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