Graco 17M988 Repair Manual Download

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3A4347D

Repair

PRO-DUTY

Displacement Pump

For professional use only.

Models: PRO-DUTY Quick Repair Pump: 17M990, 17M991

PRO-DUTY Pump: 17M988, 17M989

Important Safety Instructions

Read all warnings and instructions in this manual and related manuals.

Be familiar with the controls and the proper usage of the equipment.

Save these instructions.

ti29850a

PRO-DUTY Quick Repair Pump

PRO-DUTY Pump

Summary of Contents for 17M988

Page 1: ...epair Pump 17M990 17M991 PRO DUTY Pump 17M988 17M989 Important Safety Instructions Read all warnings and instructions in this manual and related manuals Be familiar with the controls and the proper us...

Page 2: ...Pump Removal 7 PRO DUTY Quick Repair Pump Removal 7 PRO DUTY Pump Removal 8 Repair 9 Disassemble Pump 9 Assemble Pump 10 Pump Installation 14 PRO DUTY Quick Repair Pump Installation 14 PRO DUTY Pump...

Page 3: ...ct against static discharge and sparks Use Airlessco conductive or grounded high pressure airless paint sprayer hoses Verify that all containers and collection systems are grounded to prevent static d...

Page 4: ...are incompatible with aluminum in pressurized equipment can cause serious chemical reaction and equipment rupture Failure to follow this warning can result in death serious injury or property damage D...

Page 5: ...rn the ON OFF switch to OFF position 3 Unplug power cord or shut engine off 4 Remove tip guard 5 Turn pressure control to the lowest set ting Disengage trigger lock This equipment stays pressurized un...

Page 6: ...fluid drain valves in system Leave drain valves open until ready to spray again 9 If you suspect the spray tip or hose is clogged or that pressure has not been fully relieved a VERY SLOWLY loosen tip...

Page 7: ...UTY Quick Repair Pump Removal Perform Pressure Relief Procedure page 5 1 Use a hammer to loosen pump retaining nut 2 Turn pump retaining nut to free pump rod cover 3 Swing pump rod cover open 4 Discon...

Page 8: ...Pressure Relief Procedure page 5 3 If necessary remove guard or pail hook to gain access to the pump 4 Disconnect outlet hose and suction hose from pump 5 Use a screwdriver to push retaining spring u...

Page 9: ...pair pump retain ing nuts are not removable and not sold separately 3 Unscrew cylinder from intake valve 4 Disassemble intake valve Clean and inspect 5 O ring at the bottom may require a pick for remo...

Page 10: ...d seat Replace if necessary O ring at the bottom may require a pick for removal 11 Remove and discard the upper throat packing with glands from the cylinder Remove and discard the lower packing with g...

Page 11: ...r and install in piston When thread sealant is applied to piston valve threads ensure that none gets on the ball e Torque to 175 15 in lb 20 2 N m 3 Assemble upper throat packing stack Use leather thr...

Page 12: ...and brown V packings 7 Grease both piston rod diameters that will go through the packings Gently guide displacement rod up through pack ings Tap bottom of piston valve as nec essary with a leather or...

Page 13: ...lug from power source OR Turn engine driven sprayers OFF Tighten packing nut and intake valve housing down an additional 1 2 1 turn This should stop or lessen leakage This allows approximately 50 gall...

Page 14: ...into the drive housing 3 Slide pump all the way into drive hous ing 4 Close pump rod cover Make certain that it is flush against drive housing 5 Use both hands to tighten pump retain ing nut 6 Use a...

Page 15: ...p are flush with drive housing face Back off pump and jam nut to align pump outlet to side Tighten jam nut by hand then tap 1 8 to 1 4 turn with a hammer to approximately 75 5 ft lb 102 N m 4 Connect...

Page 16: ...Parts 16 3A4347D Parts 13 7 6 12 19 20 4 2 8 17 10 18 16 22 25 24 21 23 11 5 ti29881a...

Page 17: ...5 VALVE intake hous ing 1 13 17P097 KIT guide ball assembly includes 16 18 1 16 16D531 O RING 1 17 17J187 O ring special pis ton seat 1 18 17S053 O RING 1 19 125724 V PACKING piston V MaxTM UHMWPE 3 2...

Page 18: ...um fluid working pressure 3300 psi 227 bar 22 7 MPa Inlet Outlet Sizes Fluid inlet size 1 0 in diameter Fluid outlet size 1 4 in Wetted materials on all models stainless steel PTFE leather nylon zinc...

Page 19: ...clude 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 WARRA...

Page 20: ...Airlessco reserves the right to make changes at any time without notice Original Instructions This manual contains English MM 3A4347 GRACO INC AND SUBSIDIARIES P O BOX 1441 MINNEAPOLIS MN 55440 1441 U...

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Graco 17M988, Repair Manual

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