Graco A Series Repair Manual
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Graco A Series Repair Manual

Graco A Series Repair Manual

Displacement pump
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Repair
Displacement Pump
For professional use only.
3300 psi (22.7 MPa, 227 bar) Maximum Working Pressure
Model 16Y598, Series A
UltraMax II and Ultimate MX II 695/795 STD
GMAX II 3900 STD
SL 1250, Mustang 11500
ASM H3150, Storch ST900
Model 17H828, Series A
TexSpray Mark IV STD
Model 16Y706, Series A
UltraMax II and Ultimate MX II 1095/1595 STD
GMAX II 5900 STD
Model 17H829, Series A
TexSpray Mark V STD and 5900 HD STD
Model 17H830, Series A
TexSpray Mark VII STD
Model 16X423, Series A
GMAX II 7900 STD
Model 17H831, Series A
TexSpray Mark X STD
Model 25E689, Series A
TexSpray 7900 HD STD
Important Safety Instructions
Read all warnings and instructions in this manual
and all related manuals before servicing. Save all
instructions.
3A6584A
EN
ti23116a

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Summary of Contents for Graco A Series

  • Page 1 Repair 3A6584A Displacement Pump For professional use only. 3300 psi (22.7 MPa, 227 bar) Maximum Working Pressure Model 16Y598, Series A UltraMax II and Ultimate MX II 695/795 STD GMAX II 3900 STD SL 1250, Mustang 11500 ASM H3150, Storch ST900 Model 17H828, Series A TexSpray Mark IV STD Model 16Y706, Series A...

  • Page 2: Table Of Contents

    Tools Needed ......4 Graco Standard Warranty....21 Cleaning and Inspecting Parts .

  • Page 3: Warnings

    Warnings Warnings The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When these symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Product-specific hazard symbols and warnings not covered in this section may appear throughout the body of this manual where applicable.

  • Page 4: Service

    To reduce the risk of damaging sealing surfaces, never use sharp or pointed tools to remove sleeve. If the sleeve cannot be removed easily, return the sleeve and cylinder to a Graco b. Loosen the nut or the coupling completely.

  • Page 5: Repair When Pump Is Separated From Sprayer

    NOTICE To reduce the risk of damaging sealing surfaces, never use sharp or pointed tools to remove sleeve. If the sleeve cannot be removed easily, return the sleeve and cylinder to a Graco distributor for removal. NOTE: All Mark and HD pumps...
  • Page 6 Service Assembling the Pump 6. Unscrew piston valve from piston rod. Clean and inspect parts. The piston has a special thread 1. A) For all non-QuikPak™ Repair Kits. locking/sealing patch. Do not remove the patch. The Soak all leather packings in SAE 30W oil for 1 hour patch allows four disassembly/assembly procedures minimum prior to assembly.
  • Page 7 Service 2. Install ball (206) in piston rod. If thread sealant is applied to piston valve threads, make sure that none B) For all QuikPak Piston Repair Kits (provided gets on ball. pre-soaked in oil). ti7575a 5. Install seal (201) into packing nut (202). Install 3.
  • Page 8 Service 7. Slide piston assembly (with force) into bottom of 9. Grease o-rings (221 and 234) and place on sleeve. sleeve. Slide sleeve/piston rod assembly into bottom of cylinder. Replace o-ring (207) if desired. ti7577a 10. Mark IV and Mark VII models: Install o-ring (231) on sleeve spacer (232) and install sleeve spacer on 8.
  • Page 9 Service 14. Remove o-ring (228) when pump packings begin to leak after extended use. Then tighten packing nut down until leakage stops or lessens. This allows approximately 100 gallons of additional operation before a repacking is required. NOTE: All Mark and HD pumps only.

  • Page 10: Repair When Pump Is On Sprayer

    Service Repair When Pump is On 4. Push out pin (29). Ensure spring covers pin after assembly. Sprayer 1. See Pressure Relief Procedure, page 4. 2. Remove intake valve. ti4258b 5. Disassemble intake valve. Clean and inspect. O-ring (227) may require a pick for removal. NOTE: Spring (233) only used on 17H830, 16X423, and 17H831.
  • Page 11 Service 7. Invert piston rod and sleeve and pound on hard 11. Remove piston valve from piston rod with a wrench. surface until piston rod comes out of sleeve. Mark IV and Mark VII models: Remove sleeve spacer from sleeve. ti4258g 12.
  • Page 12 Service piston valve threads is good for four repackings. Use B) For all QuikPak Throat Repair Kits (provided thread sealant on piston valve threads after four pre-soaked in oil). repackings. used on 16Y598, 17H828 ti3941a B) For all QuikPak Piston Repair Kits (provided 14.
  • Page 13 Service 19. Grease top inch or two of piston rod that will go through the cylinder throat packings. ti7579a 20. Grease o-ring (221 and 234) and place on sleeve. ti7575b Slide sleeve/piston rod assembly into bottom of cylinder. Replace o-ring (207) if desired. 17.
  • Page 14 Service 24. Reassemble intake valve with new o-rings (227), seat (212), and ball (214). Seat may be flipped over and used on other side. Clean seat thoroughly. NOTE: Spring (233) only used on 17H830, 16X423, and 17H831. NOTE: All Mark and HD pumps only ti7726b...

  • Page 15: Pump Packings

    Service Pump Packings ™ V-Max UHWMPE, blue ™ V-Max UHWMPE, blue Pump 16Y706 3A6584A...

  • Page 16: Parts - Pump 16Y598, 17H828

    Parts - Pump 16Y598, 17H828 Parts - Pump 16Y598, 17H828 Ref. Part Description Qty. 201*† 179810 SEAL, throat 193046 NUT, packing 203*† 192692 V-PACKING, throat, V-Max, UHMWPE, blue 204*† 15C987 GLAND, male, throat, CYLINDER, pump 17A030 Model 16Y598 287876 Model 17H828 BALL check 105444* Model 16Y598 (Stainless steel)

  • Page 17: Parts - Pump 16Y706, 17H829, 17H830

    Parts - Pump 16Y706, 17H829, 17H830 Parts - Pump 16Y706, 17H829, 17H830 Ref. Part Description Qty. Ref. Part Description Qty. 17Y287 Model 17H829  183171 SEAL, throat 201*† 17Y288 Model 17H830 193032 NUT, packing * These parts are also included in Repair Kit 17H839, which may be purchased ...

  • Page 18: Parts - Pump 16X423, 17H831, 25E689

    Parts - Pump 16X423, 17H831, 25E689 Parts - Pump 16X423, 17H831, 25E689 Ref. Part Description Qty. 201*† 112590 SEAL, throat 15E962 NUT, packing 203*† 193722 V-PACKING, throat, V-Max, UHMWPE, blue 204*† 15G658 GLAND, male, throat CYLINDER, pump 16X454 Model 16X423 16X458 Model 17H831 17Z421...

  • Page 19: Technical Data

    Technical Data Technical Data U.S. Metric Maximum Working Pressure 3300 psi 227 bar, 22.7 MPa Fluid Inlet Size 1-5/16-12 un(m) 1-5/16-12 un(m) Fluid Outlet Size 16Y598, 17H828, 16Y706, 3/8 npt(f) 3/8 npt(f) 17H829, 17H830 17H831 1/2 npt(f) 1/2 npt(f) stainless steel, PTFE, leather, nylon, nickel and zinc-plated carbon steel, Wetted Parts tungsten carbide, chrome plating, fluoroelastomer, acetal, polyethylene CALIFORNIA PROPOSITION 65...
  • Page 20 Notes Notes 3A6584A...

  • Page 21: Graco Standard Warranty

    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.
  • Page 22 Original instructions. This manual contains English. MM 3A6584 Graco Headquarters: Minneapolis International Offices: Belgium, China, Japan, Korea GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA Copyright 2019, Graco Inc. All Graco manufacturing locations are registered to ISO 9001. www.graco.com...

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16y59817h82816y70617h82917h83016x423 ... Show all

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