Repair
28
333011D
Repair
Prepare the Gun for Service
NOTE:
•
Check all possible remedies in
Troubleshooting
before disassembling the gun.
•
Use a vise with padded jaws to prevent damage to
plastic parts.
•
Lubricate the power supply, some fluid needle parts
(8), and certain fluid fittings with Part No. 116553
Dielectric Grease, as specified in the text.
•
Lightly lubricate o-rings and seals with non-silicone
grease. Order Part No. 111265 Lubricant. Do not
over-lubricate.
•
Only use genuine Graco parts. Do not mix or use
parts from other PRO Gun models.
1. Flush and clean the gun, page 20.
2. Relieve the pressure. Follow the
Pressure Relief
Procedure
, page 16.
3. Remove the gun from the manifold.
4. Remove the gun from the work site. Repair area
must be clean.
Remove the Gun from the
Manifold
See F
IGURE
20.
1. Disconnect fluid hose from manifold.
2. Holding the gun firmly in hand, loosen the two
screws (21) from the back and bottom of the mani-
fold.
NOTE:
The screws (21) should stay on the manifold.
3. Remove the gun from the manifold and take it to the
service area.
NOTE:
The five o-rings (18) should stay on the gun.
Installing and repairing this equipment requires
access to parts that may cause electric shock or
other serious injury if the work is not performed
properly. Do not install or service this equipment
unless you are trained and qualified.
To reduce the risk of a fluid injection injury, always
follow the
Pressure Relief Procedure
when you
stop spraying and whenever you are instructed to
relieve the pressure.
F
IG
. 20 . Remove Gun from Manifold
21
Rear Manifold
18
21
18
Bottom Manifold