Graco Inc. 800-094 Pressure Washer User Manual
Contents
1. CAUTION Carefully study the location of each part and the position of the seals to assure proper reassembly and operation 7 Lubricate each plunger and carefully slide manifold onto crankcase NOTE When replacing the manifold onto plungers extreme caution should be exercised to avoid damage to the seals 8 Replace the six capscrews in the manifold and tighten as previously described step 9 under servicing plungers REL RAT FCS hy MOI AESA F a h METAIS hd Sa E Sd SL DA FS 2 Be RA Sa rs SL pI E ra ie iat a I ws TL qr for aa A iara Mehl ee ae TA A SE So Star ee A ei sa eT i Bake AE ADS cri PAM tia ae COITA CSIEE ON A O MECO DOA Aone Aas III RO Se Sra ottoman ri dy e ater pr oe per PODES Saree free tina ee TE eee ee aoe ORIEN MoE rr ad wees SOK Corn PRN es EAS NS Doors Pan eae OES ND Sy DE NOD COPY Seta OH OK et Cote E NS cate etme IE NG LOANS SOR Te PR RR S N pe Ny So ete aren oe TASA ARRA ES SO EOI it xos ALIAS Bo EIRA A OT ae SAE SPO REN PESE sega SS Beatie PAP PD UNR POCO PV SAA ae Bite CB Rae Beata Oe BS Nene Saath RNS DON CO To RO NA A ORE AE LE ETT COE BURT ONE ap eT PE O CEA q e TENA Pump 80 4 fo Late a a APRE maga mu PACKING amp RETAINER KIT 801 664 PLUNGER REPAIR Includes KIT 801 474 REF Includes l NO QTY REF PACKING KIT OIL SEAL KIT VALVE UNIT KIT NO QTY 801 662 801 658 801 472 15 3 Includes Includes Includes 16 3 REF REF REF 17 3 N2. Ae PUMP MN page 12 CHEMICAL INJECTOR 21 See Parts Dwg List 2 See Parts Dwg List page 11 PARTS LIST amp So Pump Motor Assembly 800 154 REF PART REF PART NO NO DESCRIPTION QTY NO NO DESCRIPTION QTY 1 801 862 MOTOR 1 5 hp C Face 1 16 801 023 WASHER Fiat 1 4 4 2 801 864 PUMP T 9791 see parts 17 807 139 WASHER Lock 1 4 4 drawing page 11 1 18 801 546 BOLT Hex Hd 3 8 16 x 1 1 4 2 3 801 870 COUPLER HOUSING 1 19 801 015 WASHER Flat 5 16 4 4 801 871 COUPLER 1 20 801 363 WASHER Lock 3 8 4 5 801 866 HOSE By Pass 1 21 801 138 CHEMICAL INJECTOR 6 801 890 COUPLING 3 8 NPTM x 3 8 NPSF 1 CHEMJET 2 see parts 7 801 891 COUPLING 3 8NPTMx3 8NPSM 1 drawing pg 12 1 8 801 881 COUPLING 3 8 NPTF x 1 4 NPSF 1 22 801 818 BOLT Hex Hd 3 8 16 x 1 2 9 801 178 ELBOW Street 1 2 NPT 1 23 801 901 SUPPORT Unloader 1 10 801 709 PLUG Sq Hd 1 4 1 24 801 900 GROMMET 1 11 801 865 UNLOADER ST260 1 25 801 905 ADAPTOR 3 8 NPT x G 3 8 B 1 f2 801 172 SCREEN Inlet 1 26 801 907 WASHER Aluminum 1 13 801 110 HOSE ADAPTOR 1 14 801 111 NUT Hose Adaptor 1 Order parts by narne and series fetter of the assembly for 15 801 872 BOLT Hex Hd M6 x 20 mm 4 which vou are ordering 801 888 9 rn i re UP do er ere im ma a RR o mr A A A A i a RA RG ai e nm rr mo AS LG A EO M A te Ad e a a el lc li Pn Pe aar par th A A Pump Refer to Parts DARE Page 1 1 1 1 NOTE Three sizes
3. Frequent or premature failure of the packing Reduce inlet pressure Replace plungers Install proper filtration on pump inlet piumbing Check pressures and fluid inlet temperature be sure they are within specified range Over pressure to inlet manifold Damaged or worn plungers Abrasive material in the fluid being pumped Excessive pressure and or temperature of fluid being pumped Over pressure of pump Running pump dry Foreign particles in the inlet or discharge valve or worn inlet and or discharge valves Reduce pressure Do not run pump without water Check for smooth fap surfaces on inlet and discharge valve seats Discharge valve seats and inlet valve seats may be lapped on a very fine oil stone Check power cord Check for proper grounding Push switch ON RESET button Let motor cool and push reset button on rear of motor Check fuse circuit breaker panel Disassemble chemical valve and clean Check and clean chemical hose and filter Adjustable nozzie completely Turn control ring on nozzle clockwise closed to cause drop in pressure Low chemical level Check level of chemical Spray gun doesn t work Gun cartridge needs replace Replace cartridge see gun parts drawing or leaks ment 6 801 888 Strong surging at the inlet and low pressure on the discharge side Unit not plugged in G F I C activated Unit will not star
4. um o ss STRUCT RR r This manual contains IMPORTANT WARNINGS and INSTRUCTIONS READ AND RETAIN FOR REFERENCE ile ten ke Sass paad 7 x a 2362 L Pressure Washer P N 800 093 SERIES A CART MODEL P N 800 094 SERIES A HANDLE MODEL 800 psi 585 bar OPERATING PRESSURE 1100 psi 76 bar MAXIMUM WORKING PRESSURE tica ee Tear dd Pas See oat GRACO INC P O Box 1447 MINNEAPOLIS MN 55440 1444 COPYRIGHT 1984 GRACO INC WARNING HIGH PRESSURE SPRAY CAN CAUSE SERIOUS INJURY FOR PROFESSIONAL USE ONLY OBSERVE ALL WARNINGS Read and understand all instruction manuais before operating equipment INJECTION HAZARD ELA Fluids under high pressure from spray or leaks can penetrate the skin and cause extremely serious injury including the need for amputation NEVER point the spray gun at anyone or any part of the body NEVER put hand or fingers over the spray tip NEVER try to stop or deflect leaks with your hand or body MEDICAL TREATMENT EEE If any fluid appears to penetrate your skin get EMERGENCY MEDICAL CARE AT ONCE DO NOT TREAT AS A SIMPLE CUT Teil the doctor exactly what fluid was injected For treatment instructions have your doctor call the NATIONAL POISON CENTER NETWORK 412 681 6669 AVOID COMPONENT RUPTURE Gisa Even after you shut off the electric motor there is high pressure in the pump hose a
5. 4 Slide access plate into place and instal access pin Recommended tool box spare parts 801 888 13 ACCESSORIES Must be purchased separately CHEMICAL CLEANING COMPOUNDS General Purpose Cleaner 800 106 Heavy Duty Degreaser 800 107 Vehicle Wash 800 108 Metal Pretreatment Phosphatizer 800 109 Paintable Rust Inhibitor 800 110 BACK FLOW PREVENTOR 801 133 Prevent back up of contaminated water into fresh supply install upstream from pump TECHNICAL DATA MOTOR WATER PUMP WETTED PARTS UNIT WEIGHT OVERALL DIMENSION MAX INLET WATER TEMPERATURE INLET HOSE CONNECTION 14 801 888 1 5 hp single phase 115 V 60 Hz 15 Amp 800 psi 55 bar measured at pump 2 6 GPM 9 8 liter min Stainless Steel Aluminum Phenolic Plastic Ceramic Liners Nitrile Rubber Cart Unit SO Ib 41 kg Length 36 in 914 mm Width 19 in 483 mm Height 19 5 in 495 mm 160 F 70 C 3 4 garden hose f Handle Unit 70 Ib 32 kg Length 22 in 659 mm Width 10 in 254 mm Height 14 in 356 mm mam s aunas TT A YAO saia a rem th a o a da a a taip dm A le m au suara e i a De ui a a car fa J ama et a Mh mma ma anom tem ooo APAA mie Maien PA a dr AP HE e a o a ee Ee SO OT ES TUI dad Ni AP a tr o o a e SP a A eT E ETE ee ee a N OAT e Y THE GRACO WARRANTY Graco Inc warrants all equipment manufactured by it and bearing its name to be free f
6. cleaning solution Protect surfaces that might be damaged by cleaning solution or high pressure spray and rinse solution before it dries Shutdown And Care Of Unit When unit is not in use turn off water supply When shutting down for the day or weekend shut off unit shut off water supply valve and trigger gun to release pressure Wipe off the unit with a damp rag This model runs with very little noise due to the size of the motor and pump Be Sure that the unit is turned off when not in use ff unit is left running when not actually using spray gun the build up of temperature in the by pass loop of the pump could exceed the manufacturer s specifications of 160 F 71 C maximum This will cause shortened pump life CAUTION Shut off cleaning unit when not actually spraying for longer pump life The pump will overheat if feft running for over 10 minutes without spraying Check the filter screen in the water inlet connection as often as necessary at least daily Do not operate the unit with the inlet and filter screen removed PUMP MUST NOT BE RUN DRY and must be drained of water prior to exposure to freezing temperatures Use and store the unit where it will not be subjected to freezing temperatures If water does freeze in the unit thaw before trying to start A 50 anti freeze solution may be pumped prior to cold weather Storage Use only spray tips that are matched to the unit to avoid excessive cycling an
7. injector is brass WARNING Observe chemical manufacturer s safety pre cautions regarding use of goggles protecuvo clothing or respirators NSRP FP pes Fy Mh C det et Se TELE veem prey ee r Turn controi ring on adjustable nozzle clockwise to cause a drop in pressure Start pressure washer unit and trigger spray gun The injector may draw momentarily as system is filling but normally will stop as system builds up to full pressure To actuate injector turn chemical adjustment knob out counterclockwise until chemical begins to be drawn _ from the container After the chemical reaches injector flow rate may be adjusted by turning the adjustment knob At two full turns from the closed position of the chemical adjustment knob maximum chemical flow is obtained Do not exceed two turns Check the distance you will need to hold spray nozzle from surface by test spraying on a scrap of similar material For soft surfaces such as wood hold nozzle about 3 feet 1 m from surface and gradually bring it closer check to see if the high pressure spray is damaging the surface Mist wet surface with cleaning solution Let it soak briefly then use spray rinse to chisel off dirt Keep nozzle at an angle to surface and at distance you determined to be best for surface f some dirt remains repeat procedure letting it soak a little longer Stubborn dirt can be cleaned off better with a stronger heated
8. 65 HOSE High Pressure 30 ft TUBING Chemical 5 16 J D FILTER Chemical LABEL Warning High Pressure LABEL Graco G LABEL Warning Ground LABEL Relieve Pressure LABEL Oil Pump LABEL Serial Number PS e o REF PART NO NO 30 801 902 31 801 903 32 801 910 33 801 228 34 801 229 35 801 303 36 801 024 37 801 023 38 801 025 39 800 155 40 801 858 41 801 853 42 801 541 43 801 539 44 801 857 45 801 504 46 801 546 47 801 363 48 801 015 49 801 941 50 801 880 51 801 235 52 801 879 53 801 024 54 801 023 55 801 025 56 801 854 57 801 886 58 801 895 59 801 022 60 807 088 61 801 878 62 801 499 DESCRIPTION LABEL By Pass LABEL Start Stop PLUG Plastic WIRE Black WIRE White WIRE Green NUT 5 16 18 FLATWASHER 1 4 LOCKWASHER 5 16 SUPPORT TUBE WELDMENT LEG CHASSIS HANDLE BUMPER AXLE FOOT Rubber BOLT 3 8 16x 1 1 4 grade 5 LOCKWASHER 3 8 FLATWASHER 5 16 BOLT 5 16 18 x 1 grade 5 COTTER PIN 1 8 x 1 1 4 WASHER 5 8 WHEEL NUT 5 16 18 FLATWASHER 1 4 LOCKWASHER 5 16 HANDLE Carrying BUMPER Rubber TUBE Closure BOLT 5 16 18 x 1 3 4 BOLT 5716 18 x 4 1 2 NUT 3 8 16 NUT Lock 3 8 16 24 24 24 md o o O P gt ANPADODNANOO O aaa a ca a Order parts by name and series letter of the assembly for which you are ordering Recommended tool box spare parts PARTS DRAWING S22 Pump Motor Assembly 800 154
9. DLE HOSE BARB 1 15 801 698 ADJUSTMENT KNOB 1 16 801 677 TUBING 5 16 I D 1 17 801 682 SPRING retaining 1 18 801 683 STRAINER 1 Order parts by name and series letter of the assembly for which you are ordering Recommended too box spare parts PARTS DRAWING ee a a Gun Assembly 800 157 SEE NOTE 15 NOTE Hose Swivel amp Spray Tip are not included with Gun Assembly See Pressure Washer Assembly 16 Parts Drawing List page 7 8 Gun Assembly 800 157 REF PART NO NO DESCRIPTION Ro QTY 1 801 935 WAND 20 1 2 801 957 GRIP 1 SERVICE amp 3 800 118 ADJUSTABLE NOZZLE 4 801 638 SPRAY GUN replaceable Gun Cartridge Replacement parts include items 5 16 1 5 801 639 CARTRIDGE 1 1 Press access pin 12 from gun handle and remove 6 801 671 HOUSING 1 access plate 14 by sliding plate backwards 7 801 670 HEX PLUG 1 Remove cartridge 5 from housing 6 by using a 8 801 256 _ TRIGGER PIN 1 19 mm socket wrench 9 801 424 TRIGGER 1 10 801 672 OUTLET Ps 1 2 Check inside housing to be sure all o rings came 11 801 673 PIN COVER 2 out when cartridge was removed if o ring can be 12 801 428 ACCESS PIN seen inside the housing remove it being careful a a pio PEE sie not to damage internal threads in housing 15 801 420 TUBE 1 a 16 801 423 INLET FITTING 1 3 Throw away old cartridge and install new cartridge Be sure to tighten cartridge firmiy against housing which you are ordering
10. O QTY NO QTY NO QTY 18 3 10 6 14 3 3 6 Pump repair kits indicated are standard kits for another modei pump Extra parts included in kits should be kept for future use 9 10 11 12 13 m h Two kits needed for entire pump AP ASEAN III eA A SA gE RP ns inline IA AO a RT a OR he ee ae ee Ba Siga es lt a aS ek PU AA eT e potee ai ae apace ptt ap oe SENON Te Bitrate FON Paty NOUNS Nee RN he PERA oe Poke cna gee a Saat SRR NPD SOS q EN RS Karena PENSO O AN SS a Pump 801 864 f REF PART REF PART NO NO DESCRIPTION NO NO DESCRIPTION 800 651 SCREW M8 x 60 MM 12 801 656 PACKING RETAINER 801 652 WASHER 8 4 x 13 x 0 8 MM 13 801 657 O RING 801 472 VALVE UNIT 14 801 778 OIL SEAL 801 470 O RING 15 801 493 PLUNGER RETAINING SCREW 801 471 HEX PLUG M24 x 2x 16 MM 16 807 492 WASHER 801 889 MANIFOLD 17 801 488 O RING 801 485 WASHER 18 801 491 BACK UP RING 801 484 CAP 3 8 NPT 19 801 661 PLUNGER 801 655 HEAD RING 20 801 660 FLINGER 801 653 PACKING 21 801 659 OFL DIPSTICK 801 654 INTERMEDIATE RING 2 OOVONO VIA WN ESE Bah oa a eee ce O SKS WAGON b 3 Order parts by name and series letter of the assembly for which you are ordering 801 888 11 Chemical Injector The nozzle check valve vaive seat and needle valve may be cleaned by disassembling the chemical injector if clogging occurs within As with any injector if the spray tip become
11. al the motor control switch has a built in ground fault interrupter circuit Due to this special protection feature of the switch if the switch ON button is pushed in while the unit is unplugged the unit will go into the ON mode When plugged in unit will immediately start The switch cannot be turned off until itis energized Once power is applied to unit switch can be turned off NOTE Always use the moter control switch when starting and stopping unit Avoid inadvertently pushing ON button when unit is unplugged Cleaning Start unit by lifting the cover on the motor contro switch and pushing the START button This button is also marked RESET Pull trigger on gun and unit should start spraying The spray pattern can be changed by turning the control ring on the adjustable spray nozzle 4 801 888 NOTE For a direct supply system your water source at the unit must have a flow rate of at least 4 GPM 15 liter min Electrical Service Before plugging the sprayer into an approved electrical receptacie be sure that the electrical service is single phase 115 V 60 Hz AC 15 Amp With the motor control switch in the OFF position plug the power cord into a grounded outlet If an extension cord is used be sure that it has a ground and that the wire gage is at least No 14 gage wire The cord should not be over 100 feet 30 m long See the operation section for further characteri
12. d wear of the unloader valve CAUTION Let a frozen pump thaw in a warm place Don t pour hot water on a frozen pump A sudden temperature change may crack the ceramic plungers Do not pump caustic materials Before extended storage flush the pump with light oil Avoid dragging hose over an abrasive surface such as cement This causes excessive wear and shorter hose life Clean the intake line strainer daily Lubrication and Care Fill pump crankcase to dot on oil gauge window with 10 20z 0 3 liters of crankcase oil part no 801 144 or equivalent SAE 20 30 weight hydraulic oi with anti wear and rust inhibitor additives Change initial fill after 50 hour running period Change oil every 3 months or at 500 hour intervals Winter Maintenance 1 Turn off and disconnect water supply and discharge lines 2 Pump a 50 antifreeze solution through the machine making sure all water has been displaced 3 When machine is needed connect the water supply and circulate the antifreeze from the machine to containers for reuse When the water flowing from the outlet becomes clear reconnect discharge lines 801 888 5 EA A LA a I phia atl fp i e A a Ami PA ete Lm Troubleshooting PROBLEM CAUSE SOLUTION Low Pressure Worn nozzle Replace with nozzle of proper size Coupling slippage Tighten or replace Air leak in inlet plumbing Disassemble reseal and reassemble Relief valve stuck partially Clean and adj
13. er rod 5 Replace plunger 6 Lightly grease retaining screw assembly to avoid cutting o ring Lightly grease outer end of plunger 10 801 888 7 Install retaining screw assembly into plunger and torque to 14 4 ft Ibs 2 K m 8 Lubricate each plunger and carefully slide manifold onto crankcase 9 Replace the six capscrews and snug them up Torque to 16 ft Ibs 2 2 K m NOTE The six capscrews must be torqued eveniy to apply equal pressure on the manifold so that it seats property and doesn t bind or jam This is best done by torquing bolts closest to the center of the manifold first and then working out from those bolts Servicing V Packings NOTE Use packing repair kit P N 801 662 1 After removing the six capscrews and the manifold carefully pull packing retainer 12 from the manifold Examine o ring 13 and replace if necessary 2 Remove low pressure packing 10 and head ring 9 3 Pull intermediate retainer ring 11 from manifold high pressure packing 10 and head ring 9 4 Inspect ali parts and replace if necessary NOTE if just the packings are needed use kit 801 662 If rings or retainers need replacement use kit 801 664 5 Thoroughly clean packing cavity in manifold and examine Lightiy grease packing cavity 6 Replace patking assembly in the following order head ring 9 packing 10 intermediate ring 11 head ring 9 packing 10 packing retainer 12 and o ring 13
14. hemicals such as insecticide or weed killer This unit is supplied with an 8 foot power cord made up of three AWG No 14 wires The green wire of the etectric cord is connected to the unit chassis and motor frame The other two wires are connected to the starter switch The starter switch has a built in ground fault interrupter that will shut off the power to the unit whenever an improper ground condition exists Always check to be sure the switch is off andthatthe hoses and electric cord are clear of moving parts before plugging in the power cord IMPORTANT United States Government safety standards have been adopted under the Occupational Safety and Health Act These standards particularly the General Standards Part 1910 and the Construction Standards Part 1926 should be consulted in connection with your use of airless spray equipment 2 801 888 et re mm am ASSEMBLY INSTALLATION EEE MODEL cid POWER CORD HANDLE MODEL FLUID INLET CHEMICAL 3 4 GARDEN ADJUSTMENT HOSE THREAD Peps PRESSURE SPRAY GUN ADJUSTMENT KNOB Check For Danado Check unit for any damage that may have occurred it in shipping Any damage should be noted and the carrier notified immediately Check unit and accessories to be sure that all components were included If anything is missing contact your local representative Handle Model The handie unit comes completely assembled The installation of hose gun and co
15. nd gun until you release it by triggering the gun So before removing the spray tip or servicing the unit a ways shut off the unit and trigger the gun to release pressure Be sure that all accessory items and system components will withstand the pressure developed NEVER exceed the pressure rating of any component in system NEVER alter or modify equipment your personal safety as well as the function of the equipment is at stake Before each use check hose for weak warn or damaged conditions caused by traffic sharp corners pinching or kinking Tighten ail fluid connections securely before each use Replace any damaged hose Do not use chemicals or agents which are not compatible with Viton and PVC or neoprene cover of hose Do not leave a pressurized unit unattended Shut off the unit and release pressure before leaving Do not spray flammable liquids Do not operate the unit where combustible fumes or dust may be present Sie oy GENERAL ps ERR Observe detergent manufacturer s safety precautions Avoid getting detergent or other liquids in your eyes Follow the directions on the container regarding contact with eyes nose and skin breathing fumes etc Always wear full goggles to protect your eyes from the spray as well as any debris dislodged by the spray If necessary wear gloves or other protective clothing If antidotes or treatment are recommended be prepared to use them DON T spray toxic c
16. nnection to water supply as described later is all that is required Cart Model The cart unit comes partialiy assembled Refer to the parts drawing on page 7 for aid when following assembly procedures Install axle and wheels by inserting axte through axle Support tube which is attached to chassis Place a washer a wheel and another washer on the axle on both sides of the chassis Insert a cotter pin into the hole at each end of the axle Bend cotter pins over so they won t fali out Attach leg assembly and handle by putting the leg assembly directly under the unit towards the front of CHEMICAL FILTER PRESSURE OUTLET MOTOR CONTROL ADJUSTABLE NOZZLE CONTROL RING SPRAY TIP 16 HIGH PRESSURE HOSE 30 FT the chassis Insert the flattened tabs on the handle through the slots in the front edge of the chassis Align holes and insert the four hex head machine screws 3 8 16 NC x 1 1 4 inch with flat washer lock washer and nut and firmly tighten Spray Gun Hose Assemble spray gun by attaching the spray wand with its safety grip to the gun handle The wand comes with PTFEtape on the pipe threads at each end Attach tne aqjustable spray nozzle to the other end of the wand Tighten securely to avoid any leaking Attach one end of the high pressure hose to the spray gun and the other end to the high pressure outlet Tighten swivel connections firmly using two wrenches Spray Ho
17. of equipment sold by Graco that are 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 such claims Factory Branches Atlanta Dallas Detroit Los Angeles West Caldwell N J i Subsidiary and Affiliate Companies Canada England Switzerland France Germany Hong Kong Japan GRACO INC P O BOX 1441 MINNEAPOLIS MN 95440 1444 PRINTED IN U S A 801 888 Rev B 5 85 45 10075B
18. of metric wrenches are necessary for servicing the pump M30 M17 and M6 Allen wrench Valves 1 Remove the hex plug 5 from manifold 6 using M30 wrench 2 Examine o ring 4 under plug and replace if cuts or distortion exist 3 Remove valve unit and o ring 3 from cavity NOTE Valve unit may come apart during removal 4 Replace valve unit with P N 801 472 5 Replace hex plug and torque to 72 3 ft ibs 10 K m NOTE Hex plug should be re torqued after 5 hours operation Pumping Section 1 Remove the six Allen head cap screws 1 fromthe manifold using the M6 Allen wrench 2 Carefully separate the manifold from the crankcase NOTE It may be necessary to tap manifold lightly with mallet to loosen CAUTION Keep manifold properly aligned with ceramic plungers when removing to avoid damage to plungers or seals 3 Carefully examine each plunger 19 for any scoring and replace if necessary Servicing Plungers 1 Loosen plunger retaining screw 15 5 6 turns using M 17 wrench Push plunger towards crankcase This will separate plunger and retaining screw 2 Remove retaining screw from plunger and examine o ring 17 back up ring 18 and copper bearing gasket washer 16 Replace if necessary using plunger repair kit P N 801 474 3 Remove plunger from plunger rod and remove copper flinger 20 Clean or replace if necessary 4 Lightly grease flinger and replace it on plung
19. rom defects in material and workmanship under normal use and service This warranty extends to the original purchaser for a period of 12 months from the date of purchase and applies only when the equipment is installed and operated in accordance with written factory recommendations This warranty does not cover damage or wear which in the reasonable judgment of Graco arises from misuse abrasion corrosion negligence accident substitution of non Graco parts faulty installation or tampering This warranty is conditioned upon the prepaid return of the equipment claimed to be defective for examination by Graco to verify 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 purchaser transportation prepaid If inspection of the equipment does not disclose any defect in workmanship or material repairs will be made at a reasonable charge and return transportation will be charged THIS LIMITED WARRANTY IS EXCLUSIVE AND iS IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE AND OF ANY NON CONTRACTUAL LIABILITIES INCLUDING PRODUCT LIABILITIES BASED ON NEGLIGENCE OR STRICT LIABILITY EVERY FORM OF LIABILITY FOR DIRECT SPECIAL OR CONSEQUENTIAL DAMAGES OR LOSS IS EXPRESSLY EXCLUDED AND DENIED EQUIPMENT NOT COVERED BY GRACO WARRANTY Accessories or components
20. s clogged or if downstream restriction increases in any manner the injector will stop drawing chemical The restriction should be eliminated before continuing PARTS DRAWING Chemical Injector 12 801 888 cia naaa Pr APE NY ANN a MASOIE AA A Sy A FORO TRY PORES De tO RLU p ORR CGI DI AS TEIE A er ca PRO aR hin RA ER D AAAS AOIN EEN ASTAN ERR OCR AS ETR SININ ES Ce ENA EE Ao So SERRE RS Sag ths Che Socata EI STE A pa RSS DO oh aha ences eee eee tbo BE Me wis ea RT SS RSA otc nit Syn end Sc awd ARE REE ENAS peepee Pees Seatac ania O RANA CRS eS KEI ONT NAL Ria RO eA RS SEP NE aN a PS SORA ee a A retaining spring 17 has been installed at the factory to prevent the adjustment knob 15 from being unscrewed too far and the internal parts from failing out This spring can be removed if the injector needs to be taken apart for cieaning Be sure to leave spring in place whenever the pressure washer is being used Removal of spring will not improve chemical flow but could cause chemical injector to quit working REF PART NO NO DESCRIPTION QTY 1 800 138 CHEMJET NO 2 includes items 2 15 1 2 801 684 NIPPLE hex brass 3 8 NPT 1 3 801 685 O RING 1 4 801 687 NOZZLE NO 2 16 21 I min 1 5 801 688 O RING 1 6 801 689 CHEMJET BODY 1 7 801 690 SPRING cone 1 8 801 784 BALL 1 9 801 692 O RING 1 10 801 693 O RING 1 11 801 694 VALVE SEAT 1 12 801 695 SPRING 1 13 801 696 O RING 1 14 801 697 NEE
21. se A 30 foot 9 1 m section of high pressure hose is supplied with this model Additional sections may be ordered to increase the hose length Be aware that adding additional spray hose will lower the pressure of the unit at the spray gun and decrease suction of the chemical injector Maximum recommended hose length is 90 feet 27 m 801 888 3 Connect To Water Supply CAUTION Before attaching to water supply check local plumbing codes regarding cross connection to water supply Optional back flow preventor P N 801 133 is available to prevent the back up of contaminated water into fresh water supply Do not exceed 160 F 70 C water temperature to pump in a direct supply system Connect a hose with at least 3 4 inch 19 mm I D from your city water supply to the units 3 4 inch garden hose threaded inlet The supply hose should not be longer than 50 feet 15 m long OPERATION E Startup Before starting be sure to read the safety warnings and startup instructions Turn on the water supply Trigger the gun to release any back pressure WARNING DO NOT wire or tie the gun trigger into the open or triggered position CAUTION Never run the cleaning unit dry Costly damage to the pump will result Always be sure water Supply is completely turned on before operating y Inspect al connections for any leaks Tighten if necessary Motor Control Switch As indicated earlier in this manu
22. stics on the motor control switch With the control ring turned completely counter clockwise viewed from front all water pressure will be directed through the spray tip orifice In this position the normal spray pattern of 15 will take place To change the spray pattern simply turn the control ring clockwise This will cause a drop in pressure which will activate the downstream chemical Injector When full strength spraying is desired turn control ring counterclockwise to closed position WARNING DO NOT attempt to adjust nozzle when spray gun is in use Be sure that the safety latch on gun is in the ON position before adjusting Pressure Adjustment The pressure washer has been factory adjusted to deliver 800 25 PSI measured at the pump outlet This is the maximum pressure that this unit is designed for However this pressure can be decreased by turning the control knob located on the unloader valve on the outlet side of the pump Turning the contro knob in a clockwise direction viewed from above the unit will gradually decrease the output pressure and flow Chemical Injector A downstream chemical injector is provided with the pressure washer Insert chemical filter that is attached with clear tubing to chemical injector into the top of the desired chemical container The chemicals used must be compatible with system components The standard spray hose is made of Buna N rubber and the chemical
23. t Electric motor overheated Electric service off Chemica injector clogged Chemical injection system doesn t work ATE TR de amo ey ee oy so amp A Pata 8 rs Tw 33 34 35 PUMP MOTOR ASSY 1 See Parts Dwg List page 9 9 CART 3 MODEL 3 LEADS ON MOTOR O BE TIED TOGETHER PEA MOTOR WIRING DIAGRAM ine IN SWITCH 11 801 888 7 PARTS LIST eae Pressure Washer PE 800 093 800 094 REF PART NO NO 800 093 800 094 1 800 154 2 800 157 3 801 859 4 801 931 5 801 929 6 801 966 7 801 930 8 801 893 9 801 884 10 801 884 11 801 226 12 801 304 13 801 221 14 801 894 15 801 605 16 801 606 17 801 875 18 801 876 19 801 882 20 801 883 21 801 967 22 801 677 23 801 683 24 801 129 25 801 008 26 801 388 27 801 417 28 801 524 29 801 501 8 801 888 drawing pg 13 DESCRIPTION QTY PRESSURE WASHER ASSY Cart Model inctudes items 1 52 61 62 PRESSURE WASHER ASSY Handie Model includes items 1 35 53 60 PUMP MOTOR ASSY see parts drawing pg 9 GUN ae see parts SWITCH MOUNTING BRACKET CORD GRIP CONNECTION Conduit 90 CORD with 15 Amp Plug CONDUIT 3 8 BOX Switch COVER Switch SWITCH G F I WIRE NUT Orange CRIMP CONNECTOR Blue CRIMP CONNECTOR YELLOW SCREW Self Tapping 10 BOLT 10 24 x 3 4 FLATWASHER 3 16 LOCKWASHER 10 NUT 10 24 COUPLING 3 8 NPTM x 1 4 NPSF TIP 150
24. ust relief valve check for piugged or linproperly worn and dirty valve seats Kit available adjusted valve seat worn Inlet suction strainer clogged Or improper size Warn packing Abrasives in pumped fluid or severe cavita tion Inadequate water supply Fouled or dirty inlet or dis charge valves Worn inlet or discharge valves Leaky discharge hose Pressure adjustment set down Clean Use adequate size Check more frequently Install proper filter Check flow available to pump Clean inlet and discharge valve assemblies Replace worn valves valve seats and or discharge hose Turn adjustment knob counter clockwise to increase pressure Proper size inlet plumbing check for air tight seal Clean out foreign material replace worn valves Restricted inlet or air entering the inlet plumbing Inlet restrictions and or air leaks Stuck inlet or discharge valve Pump runs extremely rough pressure low Leaking high pressure seals Replace seals Water leakage from under Worn packing 2 Install new packing the manifold Water in pump crankcase May be caused by humid air Change oil at 3 month or 500 hour intervals using Crankcase Oil other approved oil every month or 200 hours P N 801 144 Replace plungers condensing into water inside the crankcase Scored plungers
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