Service
4
308798ZAA
Service
Pressure Relief Procedure
Follow the Pressure Relief Procedure whenever
you see this symbol.
1. Engage trigger lock.
2. Turn ON/OFF switch to OFF.
3. Unplug power cord.
4. Disengage trigger lock. Hold metal part of gun
against grounded metal pail and trigger gun into pail
to relieve pressure.
5. Engage the trigger lock.
6. Open all fluid drain valves in the system, having a
waste container ready to catch drainage. Leave drain
valve(s) open until you are ready to spray again.
7. If you suspect the spray tip or hose is clogged or
that pressure has not been fully relieved:
a. VERY SLOWLY loosen tip guard retaining nut
or hose end coupling to relieve pressure
gradually.
b. Loosen nut or coupling completely.
c. Clear hose or tip obstruction.
Pump Repair Kits
Tools Needed
•
Vise
•
12 in. adjustable, open-end wrench (2)
•
Hammer (20 oz maximum)
•
Small screwdriver
•
Throat Seal Liquid
•
Pick or long small screwdriver
Cleaning and Inspecting Parts
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.
NOTE:
Remove and clean sleeve when repacking pump.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
pressurized fluid, such as skin injection, splashing
fluid and moving parts, follow the Pressure Relief
Procedure when you stop spraying and before
cleaning, checking, or servicing the equipment.
Pump
Repair Kit
239923
244196
240291
244198
240917
240916
240800
244198
243344
244196
243345
244198
COMPONENT RUPTURE HAZARD
To reduce the risk of serious injury from pressurized
fluid, 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.
Содержание 239923
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