Graco GH 16U277, Repair Manual

Page: 6 / 36

Pressure Relief Procedure
6 332157A
Pressure Relief Procedure
Follow the Pressure Relief Procedure whenever
you see this symbol.
1. Set pump valve OFF.
2. Turn engine OFF.
3. Turn pressure to lowest setting. Trigger gun into pail
to relieve pressure.
4. Open prime valve (vertical).
General Repair Information
• Install belt guard before operation of sprayer and
replace if damaged. Belt guard reduces risk of
pinching and loss of fingers.
• Keep all screws, nuts, washers, etc. removed during
repair procedures. These parts usually are not pro-
vided with replacement kits.
• Test repairs after problems are corrected.
• If sprayer does not operate properly, review repair
procedure to verify you did it correctly.
See
Troubleshooting , page 8.
Grounding
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.
or
ti20967a
OFF
ON
START
OFF
ON
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Hydraulic system and engine may become very hot
during operation and could burn skin if touched.
Flammable materials spilled on hot, bare motor
could cause fire or explosion. Have belt guard in
place during operation to reduce risk of pinching or
loss of fingers.
To reduce risk of serious injury, do not touch
moving parts with fingers or tools while testing the
repair.
Ground sprayer with grounding clamp to earth ground.