Graco Ultra-lite 235627, Instructions-Parts List Manual

Page: 11 / 24

308-253 11
Service
NOTES:
Torque to 6–10 in-lbs (0.68–1.13 N
S
m)
Models 235–627, 237–607, & 237–649: Torque to 70–80 in-lbs
(7.9–9.0 N S m)
Model 235–628: Torque to 100–125 in-lbs (11.3–14.1 N S m)
Apply lithium base grease to threads
Apply lithium base grease
Models 235–627, 237–607, & 237–649: Torque to 50–60 in-lbs
(5.6–6.8 N S m)
Model 235–628: Torque to 100–125 in-lbs (11.3–14.1 N S m)
Models 235–627, 237–607, and 237–649
Model 235–628
A
C
E
F
H
{
*
26
24
{
21
4
28
27
3
1
20
E
E
C
E
E
H
F
Fig. 4
F
A
24*
E
17
Complete Disassembly and Assembly
of the Gun
INJECTION HAZARD
To reduce the risk of a serious injury,
including fluid injection, follow the
Pres-
sure Relief Procedure on page 6
whenever you are instructed to relieve the
pressure.
WARNING
Disassembly
1. Follow steps 1 to 7 under
Valve Stem and Seal
Service. Be sure to relieve the system pressure
before beginning to service the gun.
2. Remove the trigger retaining rings (8), rod (13),
and the trigger (29). See Fig. 6, page 13.
3. For models 235–627, 235–628, and 237–607. un-
screw the fluid tube (19) from the gun body (17).
CAUTION
To avoid loosening the connections and damaging
the gun, grip the gun body (17), not the handle
(14), when removing the fluid tube (19).
4. For model 237–649 if necessary for replacement
of parts, unscrew the inlet fitting (19) from the fluid
tube (18).
5. Remove the gun han+dle screws (9), gun handle
(14), trigger lock (15), ball (2) and spring (7).
6. Remove the seal retainer (27), seal (3), and
o-rings (5 and 6).