Graco A Series Instructions-Parts List Manual page 4

Pressure Relief Procedure
WARNING
PRESSURIZED EQUIPMENT HAZARD
The system pressure must be manually
relieved to prevent the system from
starting or spraying accidentally. To
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 are instructed to relieve the pressure,
D stop spraying,
D check or service any of the system equipment,
D or install or clean the spray nozzle.
1. Engage gun safety latch.
2. Turn ON/OFF switch to OFF.
3. Unplug power cord.
4. Disengage gun safety latch. Hold metal part of gun
against grounded metal pail and trigger gun into
pail to relieve pressure.
5. Engage gun safety latch.
6. Open any fluid drain valves in system. Leave drain
valve open until ready to dispense again.
4
308815
Service
Repair Kit
Pump
243189, 239769
Tools Needed
Vise
12 in. adjustable, open end wrench
15 in. adjustable, open end wrench
Hammer, 20 oz maximum
Small screwdriver
Throat Seal Liquid
Pick or long small screwdriver
Punch
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 cylinder
and the outside of the piston rod, which must not be
worn or scratched. Replace worn or damaged parts.
Repair Kit
239939