Inlet/Outlet Valve Repair Kit for Tradeworks 150 and

Inlet/Outlet Valve Repair Kit for Tradeworks 150 and
Instructions
Inlet/Outlet Valve Repair Kit for Tradeworks 150™
and Tradeworks 170™ Sprayers
- This manual contains kit installation instructions only Outlet Valve Repair Kit: 257574, 16F292
Inlet Valve Repair Kit: 257573, 16F291
Important Safety Instructions
For detailed sprayer information and warnings, see
Operation manual 313381 included with sprayer.
Pressure Relief Procedure
To help prevent injection injuries, follow this
procedure when you stop spraying and before you
service or clean the sprayer, remove parts, or repair
leaks.
1. Turn power switch to OFF and unplug prayer.
2. Turn Spray/Prime valve to PRIME to relieve pressure.
3. Trigger gun.
4. Place trigger safety in ON position.
NOTE: Leave Spray/Prime valve in PRIME position until you
are 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 loosen the tip guard retaining
nut or hose end coupling to relieve pressure gradually. Then
loosen it completely. Clear the tip or hose obstruction.
ti11868a
313590B
ENG
Outlet Valve Replacement Kit 257574, 16F292
(Kit 257574 shown)
gs
se
bl
Chamfered
Edge
M
ov
pn
ti11911a
Disassembly
Assembly
1. Unplug power cord.
1. Verify gasket (gs) is still pressed into valve (ov) with
chamfered edge of seat (se) away from ball (bl).
2. Relieve Pressure by following the procedure
described on page 1, or see Operation manual
313381.
2. Thread new pump outlet valve into pump (M) and
torque to 320-380 in-lb (36 to 43 N•m).
3. Remove paint hose (pn).
3. Replace paint hose (pn).
4. Clean all dried residue from around pump outlet
valve.
5. Remove outlet valve fitting (ov) from pump (M) and
discard.
6. Clean all dried residue from around outlet seat area
in pump (M).
2
313590B
Inlet Valve Replacement Kit 257573, 16F291
M
bt
bl
iv
W
ti15777a
Disassembly
Assembly
1. Unplug power cord.
1. Assemble new ball stop or return spring (bt) into
pump (M).
2. Relieve Pressure by following the procedure
described on page 1, or see Operation manual
313381.
3. Remove drain tube (U) and suction tube (W).
4. Clean all dried residue from around pump inlet
valve.
2. Assemble new ball (bl) into pump (M).
3. Thread new inlet valve fitting (iv) into pump (M) and
torque to 200 to 240 in-lb (23 to 27 N•m).
4. Reconnect drain tube and suction tube (W).
5. Remove inlet valve fitting (iv), ball (bl), and ball stop
or return spring (bt) from pump (M) and discard.
6. Clean all dried residue from around pump (M) inlet
area.
313590B
3
All written and visual data contained in this document reflects the latest product 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 XXXXXX
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
Copyright 2010, Graco Inc. is registered to ISO 9001
www.graco.com
Revised 09/2010
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