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Graco Inc. 244437 Paint Sprayer User Manual
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1. 72 Removal 1 Relieve pressure page 5 77 2 Loosen ground screw and remove ground clamp 95 from sprayer 9 78 W ti7794 5 Remove coil 72 from sprayer frame 95 ti7799 3 Loosen and remove return line to oil tank and hydraulic line to cooler ti7802 311283D 27 Cooler Replacement Installation 3 Replace ground wire 95 and tighten screw Torque to 25 30 in lbs 2 8 3 4 N m 1 Install new coil 72 Replace support bar 77 washers 78 and screws 79 Tighten screws ti7774 4 Replace bar and screws Torque to 25 30 in lb 2 Reconnect return line to oil tank and hydraulic line 2 8 3 4 N m to cooler Torque to 225 in lb 25 4 N m r Nop os ey 2 la a N ay x P rey 79 78 i7776 28 311283D Motor Replacement Removal 1 Relieve pressure page 5 2 Remove screws 79 and washers 78 and belt cover 67 3 Remove belt 19 page 20 4 Remove screws 21 washers 70 and nuts 10 securing motor 5 to frame 5 Remove motor 5 from frame Replacing Motor Fan Removal a Loosen and remove bolts 86 on front of fan 14 b Pull fan 14 off small pulley 6 Installation a Position new fan 14 over small pulley 6 b Replace bolts 86 and tighten securely Torque to 125 10 in lb 14 1 1 1 N m 311283D Motor Replacement Removing Pulley 6 NOTE This procedure is only nec
2. b Slowly pull ziptie toward you while at the same time slowly pulling engine recoil to rotate pul leys It may be necessary to reposition zip tie and repeat this procedure a few times to com pletely remove belt from pulley ti7842 iy ti7834 Hydraulic Pump Replacement Installing Belt a Put belt over lower pulley 6 and align correctly b Line up belt over top left side of large pulley 4 tee JEP POCCCOCEC SPEER f ti7869 c With the palm of your hand hold the belt snug to large pulley while at the same time slowly pull engine recoil to rotate pulleys d Check belt 19 alignment on both large 4 and small pulley 6 When properly positioned over pulleys belt is centered on pulleys and com pletely over all grooves i VN 3ti7837 Properly Aligned Not Aligned Properly NOTE If belt is not aligned properly to adjust belt slowly pull engine recoil while at the same time pushing or pull ing belt to reposition over pulley 20 311283D Hydraulic Pump Replacement Alternate Belt Removal and Installation b Tighten engine bolts 21 Torque to 225 10 in lb 25 4 1 1 N m Removing Belt a Loosen engine bolts 21 to relieve tension on c Check belt 19 alignment on both large 4 and belt small pulley 6 When properly positioned over pulleys belt should be centered on pulleys and b Slide belt off pulleys completely over all grooves Installing Belt gt
3. W20EPR U NIPPON DENSO plug only e Gap plug to 0 028 to 0 031 in 0 7 to 0 8 mm For detailed engine maintenance and ee specifications refer to separate Honda e Use spark plug wrench when installing and remov Engines Owner s Manual supplied ing plug Procedure Check engine oil level and fill as necessary Daily Check hydraulic oil level and fill as necessary Check hose for wear and damage Check gun safety for proper operation Check pressure drain valve for proper operation Daily Check and fill gas tank Check that displacement pump is tight Daily Check level of TSL in displacement pump packing nut Fill nut if neces sary Keep TSL in nut to help prevent fluid build up on piston rod and premature wear of packings and pump corrosion After first 20 hours Drain engine oil and refill with clean oil Reference Honda Engines of operation Owner s Manual for correct oil viscosity Weekly Remove engine air filter cover and clean element Replace element if necessary If operating in an unusually dusty environment check filter daily and replace if necessary Replacement elements can be purchased from your local Honda dealer Weekly Daily Remove and debris or media from hydraulic rod After each 100 Change engine oil Reference Honda Engines Owner s Manual for cor hours of operation rect oil viscosity Semi annually Check belt wear replace if necessary Yearly or 2000 Replace hydraulic
4. in the eyes or on skin and Cause serious injury e Follow Pressure Relief Procedure in this manual when you stop spraying and before cleaning checking or servicing equipment e Tighten all fluid connections before operating the equipment e Check hoses tubes and couplings daily Replace worn or damaged parts immediately RECOIL HAZARD Brace yourself gun may recoil when triggered and cause you to fall which could cause serious injury 2 311283D 311283D Warning A WARNING EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injury e Do not operate the unit when fatigued or under the influence of drugs or alcohol e Do not exceed the maximum working pressure or temperature rating of the lowest rated system component See Technical Data in all equipment manuals Use fluids and solvents that are compatible with equipment wetted parts See Technical Data in all equipment manuals Read fluid and solvent manufacturers warnings For complete information about your material request MSDS forms from distributor or retailer Check equipment daily Repair or replace worn or damaged parts immediately with genuine Manu facturer s replacement parts only Do not alter or modify equipment Use equipment only for its intended purpose Call your distributor for information Route hoses and cables away from traffic areas sharp edges moving parts and hot surfaces Do not kink or over bend hoses or use hoses to pull equipment Keep
5. oil and filter element with Graco ISO 46 Hydraulic Oil hours 169236 5 gallon 20 liter or 207428 1 gallon 3 8 liter and filter element 287871 6 311283D Troubleshooting Troubleshooting PROBLEM CAUSE SOLUTION Gas engine pulls hard won t start Hydraulic pressure is too high Turn hydraulic pressure knob coun terclockwise to lowest setting Switch OFF low oil no gasoline Consult engine manual supplied Gas engine operates but displace ment pump doesn t operate Displacement pump outlet filter if Clean the filter used is dirty or clogged Tip or tip filter if used is clogged Remove tip and or filter and clean Hydraulic fluid too low Shut off sprayer Add fluid Belt worn broken or off Replace belt Hydraulic pump worn or damaged Bring sprayer to Graco distributor for repair Dried paint seized paint pump rod Service pump See manual 311485 Hydraulic motor not shifting Set pump valve OFF Turn pressure down Turn engine OFF Pry rod up or down until hydraulic motor shifts Displacement pump operates but Piston ball check not seating properly Service piston ball check See man output is low on upstroke ual 311485 Piston packings worn or damaged Replace packings See manual 311485 Displacement pump operates but Piston packings worn or damaged Tighten packing nut or replace pack output is low on downstroke and or ings See manual 311485 on both strokes Intake valve ball check not seating _ Service intake
6. pressure page 5 Allow hydraulic system to cool before beginning the service procedure 2 Drain oil Changing Hydraulic Oil procedure page 16 16 3 Hydraulic Pump Replacement Remove screw 197 and pump handle cover 196 Remove four cover bolts 79 and cover 140 It is not necessary to remove the hydraulic lines before removing cover The cover is designed to provide ample room for the cover to fit over the hose ti7805b 4 Unscrew suction line connections to hydraulic pump Place a container under hoses to catch any dripping oil ena 311283D Hydraulic Pump Replacement 5 Remove 4 belt cover screws 79 washers 78 7 Remove belt 19 page 20 and grommets 80 2 each side 8 Loosen set screws 87 on front of large pulley 4 87 ie O Wray i KH he ti7796 oO N i 6 Remove belt cover YV 9 Remove pulley 4 from hydraulic pump shaft 10 Remove nuts 10 and screws 9 holding pump to frame 311283D i7 Hydraulic Pump Replacement 11 Remove hydraulic pump 8 2 Install new pump 3 in frame I 3 Install screws 9 and nuts 10 Torque to 225 10 in lb 25 42 N m ti7800 12 Remove fittings 80 34 35 from pump 8 and set aside to use on the new pump 35 Installation 1 Install fittings 30 34 35 from old pump on new pump Torque fitting 30 and 35 to 600 10 in lb 67 8 N m Torqu
7. purchaser transportation prepaid If inspection of the equipment does not disclose any defect in material or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE Graco s sole obligation and buyer s sole remedy for any breach of warranty shall be as set forth above The buyer agrees that no other remedy including but not limited to incidental or consequential damages for lost profits lost sales injury to person or property or any other incidental or consequential loss shall be available Any action for breach of warranty must be brought within two 2 years of the date of sale GRACO MAKES NO WARRANTY AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IN CONNECTION WITH ACCESSORIES EQUIPMENT MATERIALS OR COMPONENTS SOLD BUT NOT MANUFACTURED BY GRACO These items sold but not manufactured by Graco such as electric motors switches hose etc are subject to the warranty if any of their manufacturer Graco will provide purchaser with reasonable assistance in making any claim for breach of these warranties In no event will Graco be liable for indirect incidental special or consequential damages resulting from Graco supplying equi
8. which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use With the exception of any special extended or limited warranty published by Graco Graco will for a period of twelve months from the date of sale repair or replace any part of the equipment determined by Graco to be defective This warranty applies only when the equipment is installed operated and maintained in accordance with Graco s written recommenda tions This warranty does not cover and Graco shall not be liable for general wear and tear or any malfunction damage or wear caused by faulty installation misapplication abrasion corrosion inadequate or improper maintenance negligence accident tampering or substitution of non Graco component parts Nor shall Graco be liable for malfunction damage or wear caused by the incompatibility of Graco equipment with structures accessories equipment or materials not supplied by Graco or the improper design manufacture installation operation or maintenance of structures accessories equipment or materials not supplied by Graco This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of the claimed defect If the claimed defect is verified Graco will repair or replace free of charge any defective parts The equipment will be returned to the original
9. 1 3 Replace bolts 86 and nuts 84 Tighten bolts Torque to 125 10 in lb 14 1 1 Nem 4 Connect coolant line to reservoir 64 Torque to 225 y ti7777 in lb 14 1 N m tress 6 Reattach suction hose 153 Toque to 600 10 in lb 68 1 1 Nem 24 311283D Hydraulic Pump Replacement 7 Verify drain plug has been replaced Fill oil reservoir with oil to high mark on dip stick approximately 3 5 gallons ti7784 Drain Plug ti7785 311283D 25 Changing Hydraulic Fluid Filter Changing Hydraulic Fluid Filter Removal Installation 1 Install new o ring 113 from kit 2 Install new filter 108 over cap 155 3 Install cap 155 and filter 108 in filter housing 111 Hand tighten cap till snug Then torque to 375 10 in lb 42 1 1 Nem 1 Relieve pressure page 5 2 Loosen and remove hose 101 from fitting 103 4 Install filter housing 111 into reservoir 3 Remove filter housing 111 from reservoir 64 5 Install fitting 103 in filter housing 111 Torque to 4 Remove bottom filer cap 155 from housing 111 600 10 in lb 67 8 1 1 N m 5 Pull filter 108 off cap 155 6 Reattach hose 101 to fitting 103 Torque to 450 10 in lbs 51 1 1 Nem 101 8 oO yy CD LI g 26 311283D Cooler Replacement Cooler Replacement 4 Remove screws 79 washers 78 and support bar 77 from cooling coil 72
10. 2 S amp S a Install belt 19 over small 6 and large 4 l N pulleys ha at at IIS A i ti2834 Y Properly Aligned Not Aligned Properly NOTE If belt is not aligned properly to adjust belt slowly pull engine recoil while at the same time pushing or pull ing belt to reposition over pulley 311283D 21 Replacing Oil Reservoir Removal T 22 Relieve pressure page 5 Drain oil from reservoir 64 following Draining Oil procedure page 16 Keep plug for use on new res ervoir q es are Remove fill cap 27 and filter assembly 111 Keep for use on new reservoir ti7785 Remove cooler line from reservoir 64 Hydraulic Pump Replacement 4 Loosen and remove suction hose 153 ti7785 5 Remove and keep suction fitting 82 for use on new reservoir 6 Loosen and remove return lines 100 101 101 ti7803 311283D Hydraulic Pump Replacement 9 Lift reservoir 64 out of frame 64 8 Remove 2 top bolts 86 and 2 bottom nuts 84 securing reservoir 64 to frame 1 ti7B06 Installation 1 Install plug 102 return elbow 31 suction fitting 32 inlet screen 89 and filter assembly 111 in new reservoir 64 ti7786 311283D 23 Hydraulic Pump Replacement 2 Install new reservoir 64 in frame 5 Reattach return lines 100 101 Torque to 450 10 In lb 51 1 1 Nem 100 ti778
11. Repair GH 833 Sprayers Korean patent 10 0647761 GRACO 311283D ENG i ied Use with Architectural Coatings Paints Roof Coatings and Below Grade Coatings 4000 psi 27 6 MPa 275 8 bar Maximum Working Pressure warnings and instructions in this manual Save Important Safety Instructions Read all amp these instructions Model 249318 249617 253471 253472 Related Manuals Ah anar A Q 311484 m 3 311485 A 311254 Graco Inc P O Box 1441 Minneapolis MN 55440 1441 Copyright 2006 Graco Inc is registered to l S EN ISO 9001 i E Lew ri ee it o iy n a es ti7107b PROVEN QUALITY LEADING TECHNOLOGY ce HOO3 Warning Warning The following are general warning related to the safe setup use grounding maintenance and repair of this equipment Additional more specific warnings may be found throughout the body of this manual where applicable Symbols ap pearing in the body of the manual refer to these general warnings When these symbols appear throughout the man ual refer back to these pages for a description of the specific hazard Ay WARNING FIRE AND EXPLOSION HAZARD Flammable fumes such as solvent and paint fumes in work area can ignite or explode To help prevent fire and explosion Use equipment only in well ventilated area Do not fill fuel tank while engine is running or hot shut off engine and let it cool Fuel is flam
12. children and animals away from work area Comply with all applicable safety regulations MOVING PARTS HAZARD Moving parts can pinch or amputate fingers and other body parts e Keep clear of moving parts e Do not operate equipment with protective guards or covers removed e Pressurized equipment can start without warning Before checking moving or servicing equipment follow the Pressure Relief Procedure in this manual Disconnect power or air supply PRESSURIZED ALUMINUM PARTS HAZARD Do not use 1 1 1 trichloroethane methylene chloride other halogenated hydrocarbon solvents or fluids containing such solvents in pressurized aluminum equipment Such use can cause serious chemical reaction and equipment rupture and result in death serious injury and property damage SUCTION HAZARD Never place hands near the pump fluid inlet when pump is operating or pressurized Powerful suction could cause serious injury CARBON MONOXIDE HAZARD Exhaust contains poisonous carbon monoxide which is colorless and odorless Breathing carbon monoxide can cause death Do not operate in an enclosed area TOXIC FLUID OR FUMES HAZARD Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin inhaled or swallowed e Read MSD9 s to know the specific hazards of the fluids you are using e Store hazardous fluid in approved containers and dispose of it according to applicable guidelines BURN HAZARD Equipment surface
13. e fitting 34 to 450 in lb 50 8 N m 5 Align pulley 4 on shaft When properly positioned approximately 1 8 inch of shaft 139 will protrude 1 8 inch 139 4 N NOTE Fill pump casing with hyraulic oil before installing fitting 34 ti7835 18 311283D Hydraulic Pump Replacement 6 Replace set screws 87 Tighten and torque to 60 9 Install suction lines Tighten fittings Torque fitting A 2 in lb 6 8 0 2 Nem to 225 10 in lb 25 4 1 1 N m Fitting B to 450 10 in lb 50 1 1 1 N m Fitting C to 225 in lb NOTE Tighten set screw on shaft before tightening 25 4 N m set screw on pump shaft 7 Position belt 19 over pulleys 4 6 Installing Belt page 20 8 Replace belt cover 67 and grommets 80 wash ers 78 and screws 79 2 each side Torque screws to 25 30 in lb 2 8 3 4 Nem 10 Install cover 140 and with four screws 79 Torqu to 25 30 in lb 2 8 3 4 Nem Install pump handle cover 196 with screw 197 ti7889 bh 197 196 79 ti7111b 11 Fill oil tank following Refilling Oil procedure on page 16 311283D 19 Belt Removal and Replacement recommended method Removing Belt a Place a ziptie around belt 19 well X ziptie ti7843 Moving parts can pinch or amputate fingers and other body parts To avoid serious injury be sure engine is in OFF position before pulling engine recoil
14. essary if you are replacing the motor When you install a new motor you reuse the existing pulley Removal a Loosen set screw 87 located on the side of the pulley 6 b Remove large bolt 24 in the center of pulley 6 c Pull pulley 6 off motor 5 Installation a Position new pulley 6 on motor 5 b Install large bolt 24 and washer 65 in center of pulley 6 Torque to 125 10 in lb 14 1 1 1 N m c Tighten set screw 87 Torque to 60 2 in lb 25 4 N m Installation 1 2 Install motor 5 in frame Replace all screws 21 washers 70 and nuts 10 Tighten securely Install belt 19 over pulleys 4 6 page 20 Replace belt cover 67 and screws 79 and wash ers 78 2 each side Using a wrench tighten bolts Torque to 25 30 in lb 2 8 3 4 N m 29 Motor Replacement 311283D 30 Removing Handle Removi ng Hand le 3 Remove frame tube plugs 120 located behind the wheels Fixed Mounting optional To prevent damaging the unit when transporting it in a truck or on a trailer Graco recommends fixed mounting to the vehicle Repositioning Handle 4 Insert plugs 120 in upper frame handle tubes a Before you can secure the unit to a truck or trailer bed plugs 120 PP a you must reposition the handle 1 Remove the 4 handle sleeve screws 148 5 Insert handle assembly 25 into lower frame tubes b The hose bracket s
15. hould face down Adjust to appropriate in out location mm 2 Remove handle assembly 25 by pulling it out of upper frame tubes 1 311283D 31 Removing Handle Securing Unit to Vehicle Bed For fixed mounting fasten U bolts over sprayer frame as 2 Place U bolts over sprayer frame and through holes indicated in the following illustration in vehicle bed Place a washer and nut over bolt end Using a wrench tighten nut securely 1 Reposition handle steps 1 5 page 31 Reposition Handle aS E 32 311283D Technical Data Sprayer Hydraulic Pressure psi bar Hydraulic Reservoir Capacity Gallon liters Motor HP kW Maximum Delivery gpm lpm Maximum Tip Size e 1 gun e 2 guns e 3 guns e 4 guns e 5 guns e 6 guns Fluid Inlet inches Fluid Outlet inches Dimensions Weight Ib kg Height inch cm Width inch cm Length inch cm Sound Levels Sound Pressure Sound Power measured at maximum normal load conditions Graco Approved Hydraulic Oil 169236 5 gallons 19 liters 207428 1 gallon 3 8 liters 311283D GH833 Gas 19 0 O 15 1 Honda 13 9 7 O 15 1 065 046 037 032 028 026 1 1 2 to 11 1 2 NPT m 1 to 11 1 2 NPT f O 101 6 27 68 6 7 119 3 91 dB A 106 dB A Technical Data 33 Warranty Warranty Graco warrants all equipment referenced in this document
16. mable and can ignite or explode if spilled on hot surface Eliminate all ignition sources such as pilot lights cigarettes portable electric lamps and plastic drop cloths potential static arc Keep work area free of debris including solvent rags and gasoline Do not plug or unplug power cords or turn power or light switches on or off when flammable fumes are present Ground all equipment in the work area See Grounding instructions Use only grounded hoses Hold gun firmly to side of grounded pail when triggering into pail If there is static sparking or you feel a shock stop operation immediately Do not use equipment until you identify and correct the problem Keep a working fire extinguisher in the work area SKIN INJECTION HAZARD High pressure fluid from gun hose leaks or ruptured components will pierce skin This may look like just a cut but it is a serious injury that can result in amputation Get immediate surgical treatment e Do not point gun at anyone or at any part of the body Do not put your hand over the spray tip Do not stop or deflect leaks with your hand body glove or rag Do not spray without tip guard and trigger guard installed Engage trigger lock when not spraying Follow Pressure Relief Procedure in this manual when you stop spraying and before cleaning checking or servicing equipment PRESSURIZED EQUIPMENT HAZARD Fluid from the gun dispense valve leaks or ruptured components can splash
17. n stroke if possible 2 Relieve pressure page 5 3 Remove suction set 147 from pump 36 311283D 5 Remove clip 121 RA ti7789 6 Slide cover up 124 Displacement Pump Replacement 8 Loosen jam nut 122 with a hammer Unscrew 3 Hand tighten jam nut 122 Then tighten securely pump 36 from power head 1 8 to 1 4 turn with hammer or torque to 330 ft lb 447 4 Nem ti7782 ti7817 9 4 Slide cover 124 up over pump rod With engine in OFF position pull recoil starter to move rod until it contacts pump rod 5 Install coupling 125 around pump rod 125 A Ma r yA C ti7804 Installation 1 Screw jam nut 122 to bottom of pump threads 36 ae 2 Slide cover 124 up over pump rod Screw pump Bir 7o OER OVOT ie OVER COURInG ize completely up into power head 122 124 125 10 311283D re 311283D Install clip pin 121 to secure Ny ff on F 121 125 t17809 8 Displacement Pump Replacement Install filter housing 110 page 15 17 Pump Power Head Replacement Pump Power Head Replacement Removal 4 Remove power head from unit Installation 1 Install power head on unit ti7803 3 Loosen 4 mounting bolts 7 on the adapter enough to lift and remove assembly ti7841 j 12 311283D 2 Tighten power head bolts 7 Torque bol
18. pment hereunder or the furnishing performance or use of any products or other goods sold hereto whether due to a breach of contract breach of warranty the negligence of Graco or otherwise ADDITIONAL WARRANTY COVERAGE Graco does provide extended warranty and wear warranty for products described in the Graco Contractor Equipment Warranty Program mm 311283 This manual contains English TO PLACE AN ORDER contact your Graco distributor or call 1 800 690 2894 to identify the nearest distributor All written and visual data contained in this document reflects the latest product information available at the time of publication Graco reserves the right to make changes at any time without notice Graco Headquarters Minneapolis International Offices Belgium China Korea Japan GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 3 2006 Rev 2 2007 34 311283D
19. s and fluid that s heated can become very hot during operation To avoid severe burns do not touch hot fluid or equipment Wait until equipment fluid has cooled completely PERSONAL PROTECTIVE EQUIPMENT You must wear appropriate protective equipment when operating servicing or when in the operating area of the equipment to help protect you from serious injury including eye injury inhalation of toxic fumes burns and hearing loss This equipment includes but is not limited to e Protective eyewear e Clothing and respirator as recommended by the fluid and solvent manufacturer e Gloves e Hearing protection Component Identification Component Identification SERIAL PART NO ti7133b Ref Description Hydraulic pump valve J 2 Pressure control 3 Drain valve 5 Engine ON OFF switch Engine controls Trigger lock Serial number ID label Lift locations 10 Suction holder Hydraulic oil fill 4 311283D Operation Operation Pressure Relief Procedure General Repair Information Ay Ks m n E A M System pressNre must be manually relieved to prevent Hydraulic system and engine may become very it from starting or spraying accidentally Fluid under hot during operation and could burn skin if high pressure can be injected into the skin and cause touched Flammable materials spilled on hot bare serious injury To reduce risk of injury from injection motor could cause fire or explosion Have belt follow
20. this procedure whenever you are instructed to guard in place during operation to reduce risk of relieve pressure stop spraying service equipment or pinching or loss of fingers install or clean spray tip Read warnings page 4 e Install belt guard before operation of sprayer and 1 Set pump valve OFF Turn engine OFF replace if damaged Belt guard reduces risk of pinching and loss of fingers mea To reduce risk of serious injury 2 Turn pressure to lowest setting Trigger gun into pail to Keep all screws nuts washers etc removed during relieve pressure repair procedures These parts usually are not pro vided with replacement kits e Test repairs after problems are corrected e f sprayer does not operate properly review repair procedure to verify you did it correctly See Trouble shooting page 7 e Do not touch moving parts with fingers or tools while testing repair 3 Open prime valve 6 rou nd j ng Ground sprayer with grounding clamp to earth ground for safe sprayer operation ail If you suspect that the spray tip or hose is completely d 9 clogged or that pressure has not been fully relieved after following the steps above VERY SLOWLY loosen tip AN guard retaining nut or hose end coupling to relieve pres 4 We J sure gradually then loosen completely Then clean tip y i and hose i7525a V 311283D 5 Maintenance Maintenance Spark Plug e Use BPR6ES NGK or
21. ts to 400 10 in lb 45 1 Nem 3 Attach hoses 100 101 to head 75 Torque to 450 10 in lb 50 84 Nem 101 is 4 4 Topurge air from hydraulic lines increase pressure enough to start hydraulic motor stroking and allow fluid to circulate for 15 seconds Turn pressure down Turn prime valve horizontal closed 311283D Pump Power Head Replacement 13 Hydraulic Motor Hydraulic Motor A 450 in lb 51 N m A 600 in lb 68 N m A 60 in lb 7 N m 930 in lb 105 N m Torqued in 3 steps ti7868 14 311283D Filter Housing Replacement Filter Housing Replacement Installation WA Q 1 Install filter housing 110 in pump opening Removal 1 Relieve pressure page 5 2 Remove paint and drain lines from filter housing ti7772 2 Tighten fitting ti7845 3 Attach paint and drain lines 3 Loosen filter housing fitting 110 until housing and remove housing from pump ti7850 ti7119 Torque to 225 10 in lb 25 4 1 1 N m 110 311283D 15 Hydraulic Pump Replacement Changing Hydraulic Oil Draining Oil a Place drain pan under oil tank and drain plug b Unscrew reservoir 64 drain plug and drain oil from reservoir drain plug Refilling Oil a Replace drain plug b Fill tank with Graco Hydraulic Oil ISO 46 Tank holds approximately 4 gallons Removal 1 Relieve
22. valve ball check See properly manual 311485 Suction tube air leak Paint leaks and runs over side of wet Loose wet cup Tighten wet cup enough to stop leak age Throat packings worn or damaged Replace packings See manual 311485 Excessive leakage around hydraulic Piston rod seal worn or damaged Replace these parts motor piston rod wiper Fluid delivery is low Pressure setting too low Increase pressure Displacement pump outlet filter if Clean filter used is dirty or clogged Intake line to pump inlet is not tight Tighten Hydraulic motor is worn or damaged Bring sprayer to Graco distributor for repair Large pressure drop in fluid hose Use larger diameter or shorter hose 311283D 7 Troubleshooting PROBLEM CAUSE SOLUTION The sprayer overheats Paint buildup on hydraulic compo nents Oil level is low Fill with oil Spitting from gun Air in fluid pump or hose Check for loose connections on siphon assembly tighten then rep rime pump Loose intake suction Tighten Fluid supply is low or empty Refill supply container Excessive hydraulic pump noise Low hydraulic fluid level Turn sprayer OFF Add fluid Check hydraulic fluid level often Do not allow it to become too low Use only Graco approved hydraulic fluid page 6 311283D Displacement Pump Replacement Displacement Pump Replacement See manual 311485 for pump repair instructions Removal 1 Flush pump 36 Stop pump on dow
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