Update Manual
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1. 15 14 7 Remove the screws holding the Bearing housing on each side See Figure 14 7 kd Figure 14 7 NOTE This is a good opportunity to inspect the auger bearing for signs of wear 14 8 Pull the Auger from the housing slight rotation of the assembly may be necessary to pull the impeller shaft clear of the rear bearing See Fig ure 14 8 Ei Figure 14 8 NOTE The most common cause of auger gear box damages impact with solid objects obscured by snow fall This damage is not warrantable Use of proper shear pins helps prevent gearbox damage but does not guarantee protection 500 and 600 SERIES 2 STAGE SNOW THROWER 14 9 Inspect the spacers and bushings and check for possible damage to augers See Figure 14 9 Spacers Hex Bushing Be A e e bushings Figure 14 9 14 10 Examine the removed auger assembly If it failed because of something other than normal wear Identify and correct the cause before returning the snow thrower to service 14 11 Install the auger assembly by reversing the removal procedure 14 12 Run test the auger before returning to service Figure 14 12 NOTE When the augers are installed correctly the foremost blades will have a inward slant to form an A frame 16 15 REMOVAL OF THE JOYSTICK CHUTE CON TROL 15 1 Loosen but do not remove the 2 screws hold ing the auger cable with a 3 8 socket See Fig ure 15 1 CRAFTSMAN2. socket See Figure 12 6 de g P Figure 12 6 900 and 600 SERIES 2 STAGE SNOW THROWER 12 7 Remove the planetary gear housing from the 12 11 Install reinstall gear set by reversing to removal snow thrower to expose the planetary gear set procedure 12 8 Remove the snap ring and shims off of the 12 12 Run test the snow Thrower before returning it to shaft See Figure 12 8 service 12 13 When installing the bearing remember that the wide side faces outward See Figure 12 13 WASHER Figure 12 8 12 9 Carefully remove the ring gear from the plane Fi mee tary gear set See Figure 12 9 igure 12 13 d D 13 FRICTION WHEEL REPLACEMENT 13 1 Remove the friction wheel assembly from the machine as described in the drive shaft removal section of this manual 13 2 Split the friction wheel with a 3 8 wrench Figure 12 9 NOTE The planetary gears and sun gear will side off easily NOTE Any time the carrier is taken off the drive assembly check the grease and add a high qual ity grease suitable for use in sub zero tempera tures to any contact surfaces 12 10 Examine all the gears If failed because of some thing other than normal wear identify and cor rect the cause before returning the snow thrower to service 13 500 and 600 SERIES 2 STAGE SNOW THROWER 13 3 Examine the removed parts If it failed because 14 AUGER ASSEMBLY of something other than normal wear identify and correct th
3. For A Growing World MTD Update Manual 2005 2 500 600 Series Snow Thrower Update NOTE These materials are for use by trained technicians who are experienced in the service and repair of outdoor power equipment of the kind described in this publication and are not intended for use by untrained or inexperienced individuals These materials are intended to provide supplemental information to assist the trained technician Untrained or inexperi enced individuals should seek the assistance of an experienced and trained professional Read understand and follow all instructions and use common sense when working on power equipment This includes the contents of the product s Oper ators Manual supplied with the equipment No liability can be accepted for any inaccuracies or omission in this publication although care has been taken to make it as complete and accurate as possible at the time of publication However due to the variety of outdoor power equipment and continuing product changes that occur over time updates will be made to these instructions from time to time Therefore it may be necessary to obtain the latest materials before servicing or repairing a product The company reserves the right to make changes at any time to this publication without prior notice and without incurring an obligation to make such changes to previously published versions Instructions photographs and illustrations used in this publication are for refer
4. Clutch Idler Bracket Figure 4 1 4 2 The torsion spring is mounted below the crank shaft and can be removed with a 1 2 socket 4 3 Relieve the tension from the drive belt by using a 3 8 wrench to apply slight upward pressure on the torsion spring to free the belt from the engine pulley a Drive clutch Idler Bracket Jorsion Spring A i Figure 4 3 500 and 600 SERIES 2 STAGE SNOW THROWER 4 4 Work the belt off the bottom of the drive plate by 5 AUGER CLUTCH CONTROL CABLE rolling it between the drive disc and drive plate See Figure 4 4 5 1 The auger control is on the left side of the handle bars 5 2 Place a mark on the adjustment bracket to the frame White out or a grease pencil would be good because it is easily removed See Figure 5 2 Figure 4 4 4 5 Pull the belt up through the top of the belt hous ing 4 6 Examine the removed belt If it failed because of Figure 5 2 something other than normal wear identify and correct the cause before returning the snow thrower to service 5 3 Loosen the hex screws securing the adjust ments bracket to release tension off of the 4 7 Install new belt by reversing the removal procee cables SES 5 4 Detach the z fitting end of the cable from the 4 8 Run test adjust the traction drive belt before control handles with a pair of needle nose pliers returning the snow thrower to service see Figure 5 4 A Ak
5. Figure 15 1 NOTE Make a mark on the adjustment bracket to the machine for reassembly 15 2 Remove the Z fitting from the Auger handle with a pair of needle nose pliers 15 3 Remove the shoulder bolt with a 3 4 wrench and 1 2 wrench See Figure 15 3 Jar f Wrench E lt S m mm s Figure 15 3 900 and 600 SERIES 2 STAGE SNOW THROWER 15 4 Carefully release the tension from the torsion 15 7 Remove the 6 screws that fasten the joystick to spring as the bolt withdraws Some models are the dash with a 3 8 socket a 6 extension may equipped with an auger lock or one hand opera be handy at this time See Figure 15 7 tion the following image shows the parts of the auger lock feature See Figure 15 4 Clutch Lock Cam Lock Plate Torsion Spring Engagement handles Pivot Rod Figure 15 7 Figure 15 4 15 8 The Joystick will drop down towards the bottom of the dash panel 15 5 repeat steps15 1 15 2 and 15 3 to disconnect 15 9 Slide the cables from the cable retainer posi and remove the traction control lever tioned on the engine See Figure 15 9 15 6 Detach the pivot rod from the clutch lock cam See Figure 15 6 D hole EE Figure 15 9 WEN gt Figure 15 6 15 10 Slip the bow tie cotter pin from the clevis pin that holds the pivoting assembly to the support NOTE The flats at each end of the pivot rod fit bracket See Figure 15 10 into the
6. the snow thrower forward so it rests on the auger housing 3 Remove the access panel located on the bottom of the machine between the wheels See Figure 3 7 qi 3 8 wrench or socket Figure 3 7 3 8 With the access panel removed the variable speed disc drive will be exposed See Figure 3 8 e ei K 5 kd 5 ul Cini kel bel umd E 900 and 600 SERIES 2 STAGE SNOW THROWER 3 9 Loosen the belt guide shoulder bolt with a 3 4 wrench and a 9 16 wrench See Figure 3 9 a te A OM antt Wo WW ap A Anni Ae Figure 3 9 3 10 Unhook the return spring on the idler bracket 3 11 Pull the belt down past the Auger pulley See Figure 3 11 Figure 3 11 3 12 EXamine the removed belt If it failed because of something other than normal wear identify and correct the cause before returning the snow thrower to service 3 13 Install the new belt by reversing the removal pro ceedure 3 14 Run test adjust the auger drive system before returning the snow thrower to service 4 TRACTION DRIVE BELT REMOVAL REPLACEMENT 4 1 Remove auger belt as described on the auger drive belt removal section of the manual NOTE A coil spring on previous models used to provide tension to the traction drive belt For the 2005 2 manufacturing season the coil spring was replaced with a torsion spring See Figure 4 1 Torsion Spring Drive
7. D hole in the cam lock 17 500 and 600 SERIES 2 STAGE SNOW THROWER Bow Tie Cotter Pin Wing Nut Figure 15 10 15 11 Remove the wing nut and screw directly in front of the clevis pin 15 12 Remove the shoulder bolt that secures the pul ley cover to the upper discharge chute Figure 15 12 15 13 The upper discharge chute will lift off of the lower chute See Figure 15 13 18 Figure 15 13 NOTE There are no chute flange keepers use on models with the joystick chute control 15 14 Remove the nut that secures the chute tilt cable guide with a 1 2 socket See Figure 15 14 1 2 Socket er Figure 15 14 15 15 Remove the anti pivot screw located on the inside of the chute with a 3 8 socket 900 and 600 SERIES 2 STAGE SNOW THROWER 15 16 Lift the deflector from the anti pivot hole there are 2 hooks that support the assembly in the defector See Figure 15 16 Figure 15 16 15 17 Examine the removes joy stick assembly If it failed because of something other than normal wear identify and correct the cause before returning to service 15 18 Install new joystick assembly by reversing the removal procedure 15 19 Test adjust the cables before returning to ser vice 15 20 Unwind the cables prior to attaching them to the Snow Thrower Allow the cables to flow without tangling or twisting See Figure 15 20 Figure 15 20 19 15 21 Twists or kinks in
8. Figure 5 4 5 5 Loosen the cable guide pulleys on the adjust ment bracket and slip the cable out of the pulley groove 5 6 5 7 5 8 5 9 500 and 600 SERIES 2 STAGE SNOW THROWER Remove belt cover Loosen the second guide pulley and again slip the pulley from the groove See Figure 5 7 Figure 5 7 Detach the spring end of the cable from the Idler bracket See Figure 5 9 Detach the spring end of the cable from the idler bracket Figure 5 9 5 10 Examine the removed cable If the failure is not 5 11 due to normal wear identify and correct cause before returning to service Install new cable by reversing the removal pro ceedure 5 12 Run test adjust the auger control cable before returning to service 6 1 6 2 6 3 6 4 6 5 6 6 6 9 6 10 6 11 TRACTION DRIVE CLUTCH CONTROL CABLE The drive control is on the right side of the han dle bars Stop engine and allow it to cool disconnect dis connect the spark plug and ground it to the engine Confirm that the fuel level is low enough to pre vent spillage through the gas cap vent with a plastic bag between the cap and the filler neck Carefully tip the snow thrower forward so it rests on the auger housing Mark the bracket to the frame as demonstrated in figure 5 2 Detach the z fitting end of the cable from the engagement handle NOTE The cable routes down to the cable guide pulley that is mounted on
9. Figure 7 7 7 8 Loosen the cable screw and nut enough to free the z fitting from the from the Speed control pivot bracket Figure 7 8 900 and 600 SERIES 2 STAGE SNOW THROWER 7 9 Remove the 5 16 hex screw securing the barrel 8 side of the cable 8 1 8 2 8 3 8 4 Figure 7 9 NOTE The bracket securing the cable to the shift lever is 2 pieces 7 10 Examine the removed cable If it failed because of something other than normal wear identify and correct the cause before returning the snow thrower to service 7 11 Install new cable by reversing the removal pro ceedure 7 12 Run test Adjust the speed control cable before returning to service 7 13 The torsion spring to the maintains continuous tension on the speed control cable 8 5 Figure 7 13 AXLE ASSEMBLY REMOVAL 600 SERIES NON STEERABLE With the engine stopped and allowed to cool dis connect the spark plug wire and ground it to the engine Confirm that the fuel level is low enough to pre vent spillage through the gas cap vent or seal the vent with a plastic bag between the cap and the filler neck Carefully tip the snow thrower forwards so it rest on the auger housing Remove the bottom access panel See Figure 8 4 inne WH d PES P A 4 m mg 4 A _ an we Figure 8 4 Remove the wheels with a 1 2 socket Figure 8 5 NOTE The end of the axle shaft are double D 500
10. and 600 SERIES 2 STAGE SNOW THROWER 8 6 Slide the spacers and washers off of the axle 8 10 Slide the axle out completely See Figure 8 6 M f y L K tA i vs KA Figure 8 10 Figure 8 6 8 11 Examine the removed parts If any of the parts NOTE There are 2 shim spacers on the left side failed because of something other than normal and only 1 on the right side wear identify and correct the cause before returning the snow thrower back to service 8 7 Slide both hex bushings off the axle 8 8 Slide the shaft to the left while holding the gear from moving 8 12 In stall new old parts by reversing the removal procedure 8 13 Run test the snow thrower before returning the snow thrower back to service UD K IT s Woodruff Key e Figure 8 8 NOTE There is a woodruff key on the shaft and can easily be lost if not careful 8 9 The axle is supported by a pair of hex flange bushings one on each side of the frame Care fully pry each one out of the frame and slide it off the end of the axle the shaft out of the housing NOTE Anytime it is necessary to remove bush ings carefully inspect for normal wear and replace if wear is excessive 900 and 600 SERIES 2 STAGE SNOW THROWER 500 SERIES AXLE REMOVAL STEER ABLE 9 1 The steerable units are unique in the way they propel While the n width axle shaft the steerable snow throwers use a split axle to provide
11. e cause before returning to ser vice See Figure 13 3 14 1 Remove the screws that fasten the auger hous ing to the rear portion of the snow thrower with a 1 2 wrench See Figure 14 1 Figure 13 3 Figure 14 1 13 4 Install the rubber friction wheel by reversing the NOTE After the 4 screws 2 on each side have removal procedure been remove the 2 parts of the snow thrower will 13 5 Run test the snow thrower before returning to open up like a clam shell there is a pivot point service stamped onto each side of the frame 13 6 When reassembling the rubber wheel tighten the 14 2 Work the auger belt off of the auger pulley screw in an alternating order See Figure 13 6 14 3 Separate the auger housing from the drive hous ing 14 4 Use a block of wood to prevent the augers from turning See Figure 14 4 ee 7 hh Figure 13 6 13 7 When installing the new friction wheel be sure that the rubber ring is secure within the wheel Figure 14 4 NOTE use a high quality grease suitable for used in sub zero temperatures on the hex shaft to allow the friction wheel assembly to move across the hex shaft freely 14 900 and 600 SERIES 2 STAGE SNOW THROWER 14 5 Remove the bolt that attaches the auger pulley to the auger shaft with a 9 16 wrench See Fig ure 14 5 pree Pras Figure 14 5 14 6 The pulley adaptor should slide off of the shaft easily See Figure 14 6 Figure 14 6
12. emove the four screws that hold the right side 11 10 Maneuver the entire drive assembly to the left Planetary gear housing pivot the right side out of the frame and pull the drive assembly out from the right side See 11 10 p Figure 11 7 11 8 In order to remove the housing it may be neces Figure 11 10 sary to squeeze the steering trigger to release the dogg assembly from the planetary ring gear 11 11 The complete drive assembly has two housings on each side commonly referred to as gear clus 11 9 Rotate the entire friction assembly backwards to ters See Figure 11 11 free the pin from the slide shifter See Figure 11 9 SE lanetary gear sets AA WA WM nnn AM WW Figure 11 11 ee Figure 11 9 NOTE Each drive gear drives one half of the axle 11 500 and 600 SERIES 2 STAGE SNOW THROWER 11 12 Inside of each planetary gear set is a series of planetary gears that rotate around a sun gear and rotate inside of the ring gear on the left See Figure 11 12 Sun Gear q em NOTE The groves in the planetary gears are to facilitate grease to the inner surface of the gear Planetary gears Figure 11 12 11 13 Although the planetary gears rarely have any service issues a good working knowledge is important e The hex shaft transfers torque from the rubber drive disc to the sun gear splined on each end of the hex shaft See Figure 11 13 lt W Figure 11 13 e The su
13. ence use only and may not depict actual model and component parts Copyright 2005 MTD Products Inc All Rights Reserved MTD Products Inc Product Training and Education Department FORM NUMBER 769 02086 10 2005 TABLE OF CONTENTS MO GUI CON EE 1 Cadi Ee EE EE 1 Auger Belt Removal ReEplaceMe nt ccccccceccceecceeeeeeeeceeeceeeceeeseneeseeeseeeseeesseeeaeeeas 2 Traction Drive Belt Removal ReplaceMent cccceccececeeceeeteeeseeesseceeeeeeeneeeseeeeeeas 3 SHEET 4 Traction Drive Cluteh Control le EE 5 SPCCOSCICCIOl CAD EE 6 Axle Assembly Removal 600 Series Non Steerable ccccccecccsecceeeeeeeeeeeeeaeeees T 500 Series Axle Removal Steerable cc cccccccccsccceeeceeeeceeeeeeeceeseueceeesaeeeseeeeaees 9 Drive Shaft Assembly 600 series 0 00 cccccecccccccecccseeceeeeseeeseeeseeeseueeeeeeseesseeseeeseess 10 500 Drive Assembly 500 series steerable ccccccccceccceeeceeeceeeseeeeeeeseeeeseeeeeeees 10 PlANe lary SCANS EE 12 Friction Vis Keelen E E 13 Auger ASSEMDIY EE 14 Removal of the Joystick Chute Control 2 0 ecccccccecceseeeceeeeeeeeseeeeeeeeeeeseeeseesaees 16 op onal Honung EE 19 FECC EE 20 1 2 L 1 4 900 and 600 SERIES 2 STAGE SNOW THROWER 500 and 600 SERIES 2 STAGE SNOW THROWER INTRODUCTION The 2005 2 manufacturing season has brought a few subtle changes to the medium frame snow throwers Disclaimer This service manual was intended for use by tra
14. ex screws that secure the bracket that guides the cable needing adjustment 3 8 wrench See Figure 2 3 LE SR Brackets CRAFTSMAN eg 3 Figure 2 3 Slide the bracket upward to add slack to the cable or downward to add tension to the cable NOTE The cables should be straight without any tension to the drive or auger when the han dle is not engaged NOTE If either bracket reaches the end of its travel without achieving correct adjustment use a straight edge to confirm that the handle bars were not bent in transport or storage The cables are adjusted correctly when light pressure 1lb 46kg results in 1 2 12 7mm of defection on the cable and there is no creep on the drive system 500 and 600 SERIES 2 STAGE SNOW THROWER AUGER BELT REMOVAL REPLACEMENT 3 1 Prior to servicing or replacing any belts stop engine and allow it to cool then disconnect spark plug and ground it to the engine 3 2 Remove the belt cover from between the auger housing and the engine with a 3 8 socket See Figure 3 2 a g m 7 a P d F E Figure 3 2 3 3 Loosen the idler pulley with a 1 2 wrench to pro vide the slack needed to free the belt Ai T LS Figure 3 3 3 4 Roll the belt over the engine pulley 3 5 Confirm that the fuel level is low enough to pre vent spillage through the gas cap vent or seal the vent with a plastic bag between the cap and the filler neck 3 6 Carefully Tip
15. ined technicians The information contained in the manual is current and accurate at the time of writing but is subject to change without notice The medium frame 2 stage snow throwers are designed with the residential user with a large amount of area to clear or just simply want to get the job done sooner The additional weight and traction of a 2 stage snow thrower makes it more suitable to heavy snow fall areas See Figure 1 3 Figure 1 3 The 500 and 600 series two stage snow thrower model lines are very similar to one another and are both covered in his manual Within the prod uct lines there are several variations that are covered in this manual as well The technician is responsible for identifying the features on any individual machine they are working on and referring to the appropriate sections of this man ual Those features variations include Power Steering or locked drive Direct or cable operated gear selector Optional lighting Optional 120V electric start N 2 2 2 3 2 4 2 0 Various dash panel and engine shroud styles CABLE ADJUSTMENTS Stop the engine and allow it to cool disconnect the spark plug wire and ground it to the engine Confirm that the fuel level is low enough to pre vent spillage through the gas cap vent or seal the vent with a plastic bag between the fuel cap and the filler neck Carefully tip the snow thrower forward so it rests on the auger housing Loosen the h
16. n gear drives the planetary gears to rotate on the opposite direction of the sun gear e When unlatched trigger squeezed the ring gear is then driven in the opposite direction of the planetary gears same direction as the sun 11 14 12 12 1 12 2 12 3 12 4 12 5 12 6 gear The ring gear moves slower that the sun gear but with more Torque because there are more teeth than the sun gear When the ring gear is allowed to spin the wheel on that side of the snow thrower is deprived of drive in the ring gear instead of transferring torque to the axle When the trigger is released and the ring gear is latched prevented from rotating the planet gears drive the carrier in the opposite direction of the sun gear rotation but at greater speed The drive gear attached to the carrier transfers power to the axle half engages the carrier that drive the axle PLANETARY GEARS To inspect or repair the planetary gears it is not necessary to completely remove the drive assembly from the snow thrower Stop engine and allow it to cool disconnect the spark plug and ground it to the engine Confirm that the fuel level is low enough to pre vent spillage through the gas cap vent or seal the vent with a plastic bag between the cap and the filler neck Carefully tip the snow thrower forward so it rests on the auger housing Remove the wheel Remove the 4 screws that secure the shaft retainer housing with a 3 8
17. the ability to drive either or both ways See Figure 9 1 Bushing Bushings Washers Axle support Split Spacer AIRE Split Spacer Figure 9 1 NOTE There aren t any chains used in the drive system 9 2 Remove the wheels spacers and shims as mention previously 9 3 Carefully pry the 2 split bushings from the axle See Figure 9 3 Figure 9 3 9 4 Slide the large 56T gear inward while gently pull ing on thew axle to expose the key that engages the gear See Figure 9 4 m 56 tooth gear H S as J i INN z a lt i CT TZ Figure 9 4 9 5 Remove the key with a pair of pliers or screw driver 9 6 Hold the axle support tube and pull the shaft from the housing 9 7 Remove other side axle in the same manner 9 8 Examine the removed parts If failed because of something other than normal wear identify and correct the cause before returning the snow thrower to service 9 9 Install the cable assembly by reversing the removal procedure 9 10 Run test the snow thrower before returning it to service 500 and 600 SERIES 2 STAGE SNOW THROWER 10 10 1 10 2 10 3 DRIVE SHAFT ASSEMBLY 600 SERIES 10 5 Maneuver the shaft partially through the wheel drive frame then tilt the assembly forward to free Remove the axle assembly as described in axle it from the housing See Figure 10 5 assembly removal IE Pry off the E ring off the left side of
18. the cable can create a bind in the chute directional control See Figure 15 21 ye Figure 15 21 16 OPTIONAL LIGHTING 16 1 Some units come equipped with a head lamp If not originally fitted with a halogen bulb they can not convert to halogen because the extra heat will melt the housing See Figure 16 1 Figure 16 1 16 2 The lamp is set up in a series circuit and pow ered from a 12V output stator equi8ped in the engine NOTE Beginning in the 2005 1 season if a snow thrower is not equipped with a head light there are no provisions to add one 500 and 600 SERIES 2 STAGE SNOW THROWER 17 ELECTRIC START 17 1 Some units are equipped with a 120V starter See Figure 17 1 ah Outlet pluc and switek a n w E oo 2 Figure 17 1 17 2 The starter is powered by a household 120V out let NOTE Beginning on the 2005 1 season if a snow thrower is not equipped with a electric starter there are no provisions to add one 20
19. the drive cable adjustment bracket Remove the bottom access panel Detach the spring end from the friction wheel support bracket AS r a KA Ke j i d Gen AN D A H i a N d H SUD y Figure 6 8 Examine the removed cable If the cable failed because of something other than normal wear identify and correct the cause before returning the snow thrower to service Install new cable by reversing the removal pro ceedure Run test adjust the tension on the traction drive clutch control cable 500 and 600 SERIES 2 STAGE SNOW THROWER T SPEED SELECTOR CABLE 7 1 A cable has replaced the rod to link from the speed control lever to the speed control assem bly on some models Sie Mt Oxo ah tne elei Speed Control Pivot Bracket Figure 7 1 7 2 With the engine stopped and allowed to cool dis connect the spark plug wire and ground it to the engine 7 3 Confirm that the fuel level is low enough to pre vent spillage through the gas cap vent or seal the vent with a plastic bag between the fuel cap and the filler neck 7 4 Carefully tip the snow thrower forward so it rests on the auger housing 7 5 Remove the bottom access panel 7 6 Place a block on the left side of the drive wheel to hold the shifter arm stationary See Figure 7 6 y ER 11 a Figure 7 6 7 f Release the tension on the Speed selector cable with two 7 16 wrenches See Figure 7 7
20. unit holding the Drive shaft assembly in See Figure 10 2 Figure 10 5 Ke a 8 Q sae 10 6 Examine the remove parts if any failed because Figure 10 2 of something other that normal wear identify and correct the cause before returning the snow Remove the Bolt from the end of the shaft secur thrower to service ing the hex shaft to the frame with a 9 16 wrench See Figure 10 3 10 7 Install the drive shaft assembly by reversing the removal procedure 10 8 Run test the drive shaft before returning the snow thrower to service 9 16 Wrench 11 500 DRIVE ASSEMBLY 500 SERIES STEER ABLE 11 1 Stop engine allow to cool disconnect the spark plug and ground it to the engine 11 2 Confirm that the fuel level is low enough to pre vent spillage through the gas cap vent or seal the vent with a plastic bag between the fuel cap and the filler neck 11 3 Carefully tip the snow thrower forward so it rests the auger housing 11 4 Remove the access panel with 3 8 socket Figure 10 3 11 5 Remove both wheels with a 1 2 socket NOTE to prevent the hex shaft from turning 11 6 Loosen and remove the screw and nut that holds while removing the exterior screw hold the hex the adjustment on the shifter cable shaft with a 13 16 wrench Rotate the friction wheel assembly forward to free the collar from the pin on the shift assembly 10 900 and 600 SERIES 2 STAGE SNOW THROWER 11 7 R
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