Graco 230V, 287512, 360G-287513, 1895-287928, CPG User Manual
...
Repair
Displacement Pump
310894G
- For portable spray application of architectural paints and coatings
or replacement pump for Graco GMax
t
II sprayers -
3300 psi (228 bar, 22.8 MPa) Maximum Working Pressure
Model 287512, Series A
GMax II 3900 Sprayer,
Rental Pro 360G
Model 287513, Series A
GMax II 5900 Sprayer,
UltraMax II 1095/1595 with ProConnect
Model 287579, Series A
GMax II 5900HD Sprayer
Model 249122, Series A
GMax II 7900 Sprayer,
Ultra Max II 1895
Model 287928, Series A
Mark Vt International
Model 287929, Series A
Mark V North America
Model 289590, Series A
TexSpray 7900HD,
Mark X, 230V, Domestic
Important Safety Instructions
Read all warnings and instructions in this manual
and in your sprayer manual. Save these
instructions.
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440--1441
Copyright 2005, Graco Inc. is registered to I.S. EN ISO 9001
ti6177a
Table of Contents
Warnings 2......................................
Service 3.......................................
Technical Data 9.................................
Parts, Pump
287512 10.....................................
287513 1 1.....................................
249122 12.....................................
Warnings
Warning Symbol
WARNING
This symbol alerts you to the possibility of serious
injury or death if you do not follow the instructions.
WARNING
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
INSTRUCTIONS
D Do not exceed the maximum working pressure temperature rating of the lowest rated system
component. See Technical Data in all equipment manuals.
287579 13.....................................
287928 14.....................................
287929 15.....................................
289590 16.....................................
Warranty 18.....................................
Graco Phone Number 18..........................
Caution Symbol
CAUTION
This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.
D Use fluids and solvents compatible with equipment wetted parts. See Technical Data in all equip-
ment manuals. Read manufacturer fluid and solvent warnings.
D Check equipment daily. Repair or replace worn or damaged parts immediately.
D Do not alter or modify equipment.
D Read all instruction manuals, tags, and labels before operating the equipment.
D Use equipment only for its intended purpose. Call your Graco distributor for information.
D Do not use 1,1,1--trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or
fluids containing such solvents in pressurized aluminum equipment. Such use could result in a
chemical reaction, with the possibility of explosion.
D Comply with all applicable safety regulations.
MOVING PARTS HAZARD
Moving parts can pinch or amputate your fingers.
D Keep clear of moving parts.
D Do not operate equipment with protective guards or covers removed.
D Pressurized equipment can start without warning. Before checking, moving or servicing equipment,
follow the Pressure Relief Procedure on page 3. Disconnect power cord.
2 310894
Service
D
Pressure Relief Procedure
WARNING
PRESSURIZED EQUIPMENT HAZAR
The system pressure must be manually
relieved to prevent the system from
starting or spraying accidentally. T o
reduce the risk of an injury from accidental spray
from the gun, splashing fluid, or moving parts,
follow the Pressure Relief Procedure whenever
you:
D areinstructedtorelievethepressure,
D stop spraying,
D check or service any of the system equipment,
D or install or clean the spray nozzle.
1. Lock gun trigger safety.
2. Turn engine ON/OFF switch to OFF.
Pump Repair Kits
Pump Repair Kit
287512 248212
287513 248213
287579 248213
249122 249123
287928 249189
287929 248213
289590 249123
Tools Needed
Vise
12 in. adjustable, open end wrench (2)
Hammer, 20 oz maximum
Small screwdriver
Throat Seal Liquid
Pick or long small screwdriver
3. Move pump switch to OFF and turn pressure
control knob fully counterclockwise.
4. Unlock trigger safety. Hold metal part of gun firmly
to side of grounded metal pail, and trigger gun to
relieve pressure.
5. Lock gun trigger safety.
6. Open pressure drain valve. Leave open until ready
to spray again.
If you suspect that the spray tip or hose is completely
clogged, or that pressure has not been fully relieved
after following the steps above, VERY SLOWLY loos-
en tip guard retaining nut or hose end coupling to relieve pressure gradually, then loosen completely. Now
clear tip or hose.
Cleaning and In sp ectin g Parts
1. Clean and inspect parts. Pay particular attention to
the ball seats in the intake valve and piston, which
must have no nicks or wear, and to the inside of
the sleeve and the outside of the piston rod, which
must not be worn or scratched. Replace worn or
damaged parts.
WARNING
COMPONENT RUPTURE HAZARD
Never use sharp or pointed tools to
remove sleeve or other components
which could result in pump rupture and
cause serious bodily injury. If the sleeve cannot be
removed easily, return the sleeve and cylinder to
your Graco distributor for removal.
2. Remove and clean the sleeve when you are
repacking the pump.
3310894
Service
Disassembling the pump
Fig. 1. Remove packing nut (202) and throat adjustment spacer (228).
202
228
ti6178b
Fig. 1
Fig. 3. Disassemble intake valve. Clean and inspect.
O-ring (227) may require a pick for removal.
21 1
used on
249122,
289590
227
7570e
Fig. 3
Fig. 4. Tap piston rod out of cylinder with a hammer or
flip over and tap piston rod out against a bench.
Fig. 2. Unscrew intake valve from cylinder.
ti6179a
Fig. 2
Note: Sleeve may come out
of cylinder with piston rod.
Fig. 4
ti6180a
Fig. 5. Remove piston rod from sleeve, or remove
sleeve from cylinder.
Fig. 5
ti6181a
4 310894
WARNING
Service
COMPONENT RUPTURE HAZARD
Do not clean or wipe the piston valve
threads. Cleaning the piston valve
threads could destroy the special sealing
patch and cause the piston valve to come loose
during operation, causing pump bursting and
possible serious bodily injury.
Fig. 6. Unscrew piston valve from piston rod. Clean
and inspect parts. The piston has a special thread
locking/sealing patch. Do not remove the patch. The
patch allows four disassembly/assembly procedures
before it is necessary to apply Loctiter to the threads.
Not used
on
287512
Fig. 8
Assembling the pump
Fig. 9. Soak all leather packings in SAE 30W oil for 1
hour minimum prior to assembly. Stack male gland
(204) on piston rod. Alternately stack UHMWPE (208)
and leather (218) packings (note orientation) on piston
rod. Install female gland (217). Install piston wiper
(216) (note orientation) and backup washer (229) on
piston valve (210). The special sealing patch on piston
valve threads is good for four repackings. Use Loctiter
on piston valve threads after four repackings.
ti6182a
ti6183a
Fig. 6
Fig. 7. Remove packings and glands from piston rod.
Not
used on
287512
ti6184a
Fig. 7
Fig. 8. Remove throat packings and glands from cylinder. Discard throat packings and glands.
Not
used on
287512
ti6185a
218 208204
Note: pump 249122 and 289590 do not use
leather packings in piston stack. Alternately
stack blue (208) and brown (218) packings
on this pump.
Fig. 9
210
229
216
217
5310894
Service
Fig. 10. Install ball (206) in piston rod. If Loctiter is applied to piston valve threads, ensure that none gets on
ball.
206
ti6186a
Fig. 10
Fig. 1 1. Tighten piston valve to piston rod as specified:
Fig. 12. Soak all leather packings in SAE 30W oil for 1
hour minimum prior to assembly. Place male gland
(204) in cylinder. Alternately stack UHMWPE (203) and
leather packings (223) (note orientation). Place female
gland (224) in top of cylinder. Seat packings.
224
Not
used on
287512
223
203
204
ti6188a
Fig. 12
Torque to 27 +/--3 ft-lb
(36.61 +/-- 4.06 N• m)
(287512)
Torque to 55 +/--3 ft-lb
(74.57 +/-- 4.06 N• m)
(249122, 287513,
289590)
Fig. 11
ti6187a
Fig. 13. Install seal (201) into packing nut (202). Install
throat adjustment spacer (228) onto packing nut.
Loosely install packing nut into cylinder.
201
202
(228 o--ring
on 249122,
228
289590 )
Fig. 13
ti6189a
6 310894
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