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Table of contents for the manual
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Page 1
334599A EN Repair ProConnect Displacement Pump For professional use only. Models: 17C487, 17 C488, 17C489, 17C 721 Important Safety Instructions Read all warnings and instructions in th is manual and related manuals. Be familiar with the controls and th e proper usage of the equipment. Save these instructions. ti24850a Use only genuine Graco replac[...]
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Page 2
Contents 2 334599A Contents Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Trigger Lock . . . . . . . . . . . . . . . . . . . .[...]
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Page 3
Warnings 334599A 3 Warnings The following warnings are for the setup, us e, groundin g, maintenance, an d repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specifi c risks. W hen these symbols appea r in the body of this manual or on wa rning labels, refe r back to these[...]
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Page 4
Warnings 4 334599A W ARNING SKIN INJECTION HAZARD High-pressure spray is able to inject toxins into the body and cause serious bodily injury. In the event that injection occurs, get imm ediate surgical treatment. • Do not aim the gun at, or spray any pe rson or animal. • Keep hands and other body parts away from the discharge. For example, do n[...]
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Page 5
Repair 334599A 5 Repair Trigger Lock Always engage the trigg er lock when sprayer is stopped to prevent the gu n from being triggered accidentally b y hand or if dropped or bumped. Pressure Relief Procedure 1. Engage trigger lock. 2. Turn ON/OFF switch to OFF position. Wait 7 seconds for power to dissi pate. 3. Unplug power cord or shut engine off.[...]
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Page 6
Repair 6 334599A 6. Turn pressure contro l to lowest setting. Disengage trigger lock. 7. Hold a metal part of the gun firmly to a grounded metal pail. Trigger the gun to relieve pressure. 8. Engage trigger lock. 9. Open any fluid drai n valves in system. Leave drain valv es open until ready to spray again. ti24854a ti24585a ti24855a ti24608a[...]
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Page 7
Repair 334599A 7 Dissemble Pump 1. Remove packing nut and throat adjustm ent spacer. Retaini ng nuts are not removable and not sold separately. 2. Unscrew cylinder from intake valve. 3. Dissemble intake valve. Clean and inspect. O-ring may require a pick for removal. ti24863a Retaining Nuts ti24870a NOTICE If using a pick to remove the O-ring use c[...]
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Page 8
Repair 8 334599A 4. Tap piston rod out of cylinder with a hammer or flip over and tap piston rod out against a bench. 5. Unscrew piston valve from piston rod. ti24875a Do not clean or wipe the piston valve threads. Cle aning the pist on valve threads could destroy the special sealing patch and cause the piston valve to come loose during operation, [...]
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Page 9
Repair 334599A 9 6. Clean and inspect parts. (The piston has a special thread locking/seali ng patch. Apply thread sealant to the threads. 7. Remove and discard throat packing and glands from th e cylinder. ti24877a ti24880a[...]
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Page 10
Repair 10 334599A Assemble Pump 1. Soak leather packings in SAE 30W oil for one hour before assembly. 2. Install ball in piston rod. If thread seal- ant is applied to piston valve threads, ensure that none gets on the ball. 3. Torque to 27 ± 3 ft-lb (37 ± 4 N•m). Leather P ac kings ti24890a Leather P ac kings ti24893a ti24891a ti24892a[...]
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Page 11
Repair 334599A 11 4. Assemble leather thro at packings soaked earlier. 5. Loosely install packing nut with o-ring onto cylinder. 6. Apply liberal amounts of g rease or oil to piston packings. 7. Grease top inch or two of piston rod that will go through the cylinder throat packings. Gently guide displacement rod up through throat packings. Tap botto[...]
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Page 12
Repair 12 334599A 8. Grease o-ring and place on outside diameter ring gro ove. 9. Clean seat thoroughly. Reassemble intake valve with a seat, ball, and new o-ring. Seat may be flipped over and used on other side. 10. Torque to 60 ± 5 ft-lb (81 ± 7 N•m). ti24897a ti24898a ti24899a[...]
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Page 13
Repair 334599A 13 11. Install o-ring on to packing nut. Torque to 75 ± 5 ft-lb (101.7 ± 6.8 N•m) or addi- tional 1/2 turn from hand tight. 12. Storage ti24900a ti24901a[...]
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Page 14
Repair 14 334599A Throat Packing Adjus tment When pump packings begin to leak after much use, perform Pressure Relief Procedure , pag e 5 and tighten p acking nut down until leakage stops o r lessens. This allows approximately 100 gallons of additional operation be fore a repacking is required. Packing nut can b e tightened without o-ring removal. [...]
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Page 15
Parts 334599A 15 Parts 202 203 220 204 221 205 201 225 206 219 208 224 209 211 207 212 213 218 215 217 216 223 222 229 ti24903a[...]
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Page 16
Parts 16 334599A Parts List Ref. Part Description Qty. 201 24W617 ROD, displacement, includes 212 1 202* 180656 BUTTON, plug 1 203 193047 NUT, packing 1 204* 176757 GLAND, female, throat 1 205* 176754 GLAND, male throat 1 206 24W619 CYLINDER, pump includes retaining nuts 229 1 207* 105444 BALL, sst, 0.3125 in. 1 208* 195129 GLAND, male piston 1 209[...]
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Page 17
Pump Installation 334599A 17 Pump Installation Pump installation inclu des securing the pump and connecting to the fluid inlet and outlet. 1. Connect outlet hose to pump. 2. Move pump displacement rod up or down until it slides into the connecting rod when the pump is slid i nto the drive housing. 3. Slide pump all the way into drive hous- ing. 4. [...]
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Page 18
Technical Specifications 18 334599A Technical Specifications PC Displacement Pump US Metric Maximum fluid working pressure 3300 psi 228 bar, 22.8 MPa Inlet/Outlet Sizes Fluid inlet size 1.0 in. diameter 2.54 cm diameter Fluid outlet size 1/4 in. 6.3 mm Wetted materials on all models stainless steel, PTFE, leather, n ylon, zinc-plated and nickel-pla[...]
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Page 19
Graco Standard Warranty 334599A 19 Graco Standard Warranty Graco warrants all equipment referenced in this docu men t which is manufactured by Graco and bearing its name to be free from defects in material and work manship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty publis [...]
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Page 20
All written and visual data containe d in this document reflects the latest p roduc t information available at the time of publication. Graco reserves the right to make changes at any time without notice. Original instructions. This manual contains English. MM 334599 Graco Headquarters: Minneapoli s International Offices: Belgium, China, Japan, Kor[...]