Graco Inc. 235457 - Manual (Page 9)

308-235 9
Service
CAUTION
Do not attempt to install an old style needle in this
gun. The front of the new needle is marked with a +
below the Graco symbol.
Notes:
Use Needle Kit 235–474.
Use all the new parts for the best results. Parts
included in the kit are shown with one asterisk, (2a*).
Keep parts very clean. Dried paint or other contami-
nants cause friction which causes parts to wear faster.
Needle Replacement.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 5.
1. Follow the Pressure Relief Procedure, page 5.
2. Remove the hose, tip guard, spray tip and gasket.
3. Remove the diffuser/seat (2a*) and gasket (2b*).
Remove the screw (12), pivot pin (11), and trigger
(8). See Fig. 6.
Fig. 6
8
2a*
2b*
12
02349
11
1
Lubricate, then torque
to 20–25 ft–lb (27–34 N.m) 1
4. Insert a punch into the rear of the gun and tap it to
push the needle (2c*) out the front of the gun. See
Fig. 7.
Fig. 7
2c
02350
5. Clean the internal passages of the gun.
6. Grease the rings (A) of the new needle (2c*). See
Fig. 8.
Fig. 8
A