Graco 307734B PT2000 Pressure Roller System REPAIR KITS Owner's Manual

INSTRUCTIONS-PARTS LIST
This manual contains IMPORTANT
307-734
ORACO
WARNINGS and INSTRUCTIONS
READ AND RETAIN FOR REFERENCE
Rev B
SUPERSEDES A
PT2ooo Pressure Roller System
REPAIR KIT§'
ily injury, including injury from moving parts or
procedure whenever you shut off the system,
of the system, and whenever you stop painting.
(1) Turn theON/OFF switch to OFF. (2)Unplug the power supply cord. (3. Trigger
the roller valve to relieve pressure.
NOTE:
Ifyou suspect rhat pressure is nor fully relieved after fottowing the sfeps above,
open the priming valve two turns counterclockwise.
_.
These kits include only those parts having a
reference number, such as 1. Those parts
with reference letters, such as A, are not included in the kit.
MOTOR KIT 218-975
1. Remove the screws (A) and front cover plate (E).
2. Remove the screws (C),bumpers (D) and bottom
cover plate (E).Disconnect the motor leads from the
positive and negative rectifier terminals.
3. Remove the motorscrews (F) and lockwashers (G).
Lift the motor (1) slightly. Holding the connecting
rod, pull the motoraway from thehousing (H).
4. Inspect the bearing in the connecting rod (J). If it
looks worn or any rollers are broken, replacethe
bearing and rod assembly.
5. Use your fingers to pack high-quality bearing grease
thoroughly in between the bearing rollers.
6. Feed the motorleads through the rubber grommet
(K). Align the motorwith the pins in the connecting
rod housing ILI, guiding the motor eccentric
through the connecting rod bearing. Spin the motor
shaft to be sure it moves freely.
7. Loosely install the lockwashers and screws (F) to
hold the motor. Spin the motor shaft again. Now
alternately tighten the screws with a 9/64 in. hex
key wrench. Spin the motorshaft again.
CAUTION
Spinning the motor shaft while assembling the
pump ensures that parts are properly aligned. If
they are not, and you start the pump, serious
damage could result to the motor, bearing, and
connecting rod. If you feel binding or resistance,
disassemble the parts, checking the spin often, until you determine the cause of the binding.
+
8. Connect the red motor lead to the positive I ) terminal and the black motor lead to the negative ( - )
terminal of the rectifier (39).
9. Reinstall the frontcover plate (6)
and screw (A).
GRACO INC. P.O. Box 1441 MINNEAPOLIS, MN 55440-1444
@COPYRIGHT 1985,GRACO INC.
OUTLET VALVE KIT 218-977
Includes items 1-6
REF PART
NO. NO.
DESCRIPTION
1 218-978
180-454
3
107-521
4
101-956
5 218-968
6
180-455
FITTING, outlet
GASKET
SPRING
BALL
HOUSING, seat, valve
2
QTY
1
1
1
SEAL, washer
1. Remove the outlet hose, unscrew the outlet fitting
( I ) and removethe gasket (2).Tip the pump forward
to remove the ball (4).
2. Use a 114 in. square socket wrench extension t o
screw out the seat (5).Use a pointed tool, such as a
dentist's pick, to remove the seal (6).
3. Thoroughly clean the threads in the pump housing.
4. Tip the pump back. Install a new seal (6)making
sure it lays flat. Install the seat (51 and torque it to
160-180 in-lb (18-20 N m ) .
"
5. Drop in the ball, making very sure it stays there!
6. Place a new gasket (2) around the fitting (1). The
last coil on one end of the spring (3) is turned In.
Place thisend on the ball stop pin. Screw the fitting
into the pump housing, torquing to 280-300 in-lb
(32-34Nm).
INLET VALVE KIT 218-976
Includes item 1
1. Unscrew the nuton the handle (Dl of the priming
valve (2). then unscrew the stem of the handle.
Screw the priming valve (2) out of the pump housing (Cl.
2. Grease the inlet valve ( 1 ) and install it in the valve
housing. Screw the valve housing into the pump
housing, torquing to 470-490 in-lb 15355 Nm). To
torque the inlet valve, have someonefirmly holdthe
pump housing (C).
PRIMING VALVE KIT 218-973
Includes items 2-6
1. Unscrew the nut on the handle (Dl of the priming
valve (21, then unscrew the stem of the handle.
Screw the priming valve (2)out of the pumphousing (E).
2. Wrap the threads of the priming valve with PTFE
tape, then screw it snugly into the pump housing.
The valve handleshould be parallelwith theangled
edge of the housing to avoid interference with the
inlet or outlet valves.
3. Slide the nut (5)and ferrule (4) onto the tube (6),
then install the tube support (3) in the end of the
tube. Screw the nut onto the
priming valve, which
will seat the ferrule.
4. Screw the stem of the handle (Dl onto thepriming
valve until it bottoms, then back it out two turns.
Screw the nut hand tight onto the priming valve,
then tighten the stem into thevalve.
2
307-734
ROLLERVALVE KIT 218~980
Includes items 1-8
1. Tap out the pin(A) from the trigger
(Dland slidethe
trigger off of the valve. See Fig 1.
2. Remove the cap (C). Use a 112 in. socket wrench to
screw the fluid housing
(D) out of the valve. See Fig
1.
3. Pull the needle (6) out withneedle nose pliers.
4. Tap the seat (3) out of theroller valve(E). See Fig 1.
5. Remove the ball (2) and spring (1) from the valve
handle. See Fig1.
6. Turn the nylonscrew (7) intothe packing. Insert the
needle (6) through the top of
the housing (D) and
push the packing outof the fluidhousing. See Fig 2.
7. Clean all parts thoroughly. Use a cotton-tipped
swab or pipe cleaner to clean small orifices.
8. Grease the needle (6) and packing (4). Insert the
tapered end of the needle into theback (flat) side of
the packing. See Fig 3.
9. Guide the tapered end of the needle into the
assembly tool (8) and press the lips of the packing
over the end of the tool. See Fig 3.
"
10. Grease the free end of the needle. Guide the tool (8)
into the fluid housing until the needle protrudes
through the top of
the housing. Lightly tap the tool
end until you "hear" the packing bonom in the
housing. Remove the tool withpliers. See Fig 3.
11. Grease the seat (3)and placeit on the fluid housing
so the seat which is formed on the inside diameter
faces out. See Fig 4.
12. Install the spring (1)in the spring cavity
of the valve
handle, then install the ball (2) so it is centered on
the spring. See Fig 1.
13. Place the O-ring (5) around the fluid housing.
Pushing lightly with your fingers, start the threads
of the housing into thevalve handle. Torque the
housing to 15-20 in-lb (1.7-2.2 Nm). See Fig 1.
14. Push on the needle until you feel some resistance.
15. Grease the cap (C) and place it on the end of the
needle. See Fig 1.
16. Slide tha trigger (6) into place. Install the pin (A) in
the trigger. See Fig 1.
Fig 1
~
LIPS FACE OUT
OF HOUSING ID)
~
~~~~
TAPEREDEND
Fig 3
SEAT MUST
FACE BALL
Fig 4
307-734
3
PRESSURE SWITCH REPLACEMENT KIT 218-974
Includes item 1
1.
Follow the Pressure Relief Procedure on the front
cover of the instruction manual.
2.
Disconnect the pressure switch leads from the
ON/OFF switch and from the rectifier.See Fig 1.
3. Remove the screws and front cover.
4. Unscrew the retainer (AI and removethe pressure
switch (1) and O-ring (6). See Fig 2.
6. Slide the retainer (A) over the pressure switch and
screw the retainer into the pump housing. Torque
the retainer to 100 in-lb (11.3 N m ) .
7 . Guide the pressure switch leads through the base.
Connect a lead to the power-out side of the
ONlOFF switchand a lead to an unmarked terminal
on the rectifier.See Fig 1.
8. Reinstall the front cover.
5. Grease and install a new O-ring ( 8 ) in the pump
housing (C).
r0NlOFFSWlTCH
B
A
@
LUBRICATE
Fig 2
i:
THE GRACO WARRANTY AND DISCLAIMERS
WARRANTY
Graco warrantsall equipment manufacturedby it and bearing its name to be freefrom defects in material and workmanship on the date of sale
by an authorized Graco distributor to tha original purchaser for use. As purchaser's sole remedyfor breach of this warranty, Graco will, for a
warranty applies only when the
period of twelve months from the date of sele, repair or replace anypart of the equipment proven defective. This
equipment is installed, operatedand maintainedin accordance with Graco's wrilten recommendations.
This warranty does not COVE^, and Graco shaiinot be liablefor, any malfunction, damage or wear causedby faulty installation, misapplication,
abrasion, corrosion, inadequate or improper maintenance, negligence, accident. tampering,
substitution
or
of non-Graco component parts. Nor
shall Graco be liable for malfunction, damage Wear
or
caused by the incompatibility with Graco equipmentof structures, accessories, equip
men1 or materials not supplied by Graco. or the improper design, manufacture, installation. operationor maintenance of structures, accessories, equipment or materialsnot supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimedto be defectivefor examination by Gracoto verify the claimed
of charge any defective parts. The equipment
will b? returned to the
defect. If the claimed defect is verified, Graco w'ii repair or replace free
original purchaser transporntion prepaid. if inspection of the equipment doesnot disclose anydefect in matenai or workmanshlp, repalrs
wlll be
made at a reasonable charge,which charges may include the the costs of path, labor andtransportation.
DISCLAIMERS A N 0 LIMITATIONS
THE TERMS OF THISWARRANTY CONSTITUTE PURCHASER'S SOLE AND EXCLUSIVE REMEDY
AND ARE IN LIEU OF ANY OTHER
WARRANTIES (EXPRESSOR IMPLIEDI, INCLUDiNG WARRANTY OF MERCHANTABlLiTY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE, AN0 OF ANY NON-CONTRACTUAL LIABILITIES, INCLUDING PRODUCT LIABILITIES, BASED
ON NEGLIGENCEOR
STRICT LIABILITY. EVERY FORM OF LIABILITY FOR DIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES OR LOSS IS EXPRESSLY EXCLUDED AND DENIED. IN NO CASE SHALL GRACOS LlABiLlTY EXCEED THEAMOUNT OF THE PURCHASE PRICE. ANY ACTION FOR
BREACH OF WARRANTY MUST BE BROUGHT WITHIN TWO I21 YEARS OF THE DATE OF SALE,
EQUIPMENT NOT COVERED BY GRACO WARRANTY
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIESOF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO ACCESSORIES, EQUIPMENT, MATERIALS, OR COMPONENTS SOLD BUT NOT MANUFACTURED BY GRACO. Theseitems sold, but notmanufactured by Graco lsuch as electric motor, switches.hose, etc. 1, are subject to the warranif any, of their manufacturer. Graco will provide purchaserwith reasonable assistence in making anyclaim for breach of these warranties.
ty.
j,.
Factory 8ranohes:Atlanta. Dallas. Detroit. Los Angales. West Caldwall 1N.J.)
Subtsldlery and Afftliate Companles:Canada; England; Swltzarland; France; Germany; Hong Kong: Japan
GRACO INC.
P. 0. Box 1441 MINNEAPOLIS. MN 55440-1444
PRINTED IN U.S.A. 3
3
7
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7
3
4 585 Revised 485

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