29
GM 4700AC
B_02268
21
22
35
84
50
51
52
53
B_02274
B_02688
OPERATING MANUAL
VERSION 09/2011
ORDER NUMBER DOC
2311730
6.4.2
REPLACEMENT OF VALVE TAPPET SEALS
6.4.3
REPLACING ROD SEAL (35)
1.
Carefully pull rod seal (35) out of the gun housing.
2.
Clean sealing surfaces in the gun housing.
3.
Mount new rod seal (35) to rod seal tool (84).
S p r a y i n g
direction
1.
Counter hold with size 13 mm; 0.51 inch open-end wrench on valve
tappet (50) and unscrew cover (53) with a size 7 mm; 0.28 inches single
open-end wrench.
2.
Remove air valve seal (51) and seal (52) and replace with new seals.
For the assembly of the air valve seal (51) a special tool (order number
179989) is necessary.
3.
Screw valve tappet (50) and cover (53) together by hand. In small
increments, carefully tighten with a size 7 mm; 0.28 inch open-end
wrench and a size 13 mm; 0.51 inch wrench until a slight resistance is
perceptible when moving the valve rod (34) in the valve tappet.
Note:
Seal (52) can be pulled out of cover (53) with the help of an eye bolt.
Note:
Note installation position of
rod seal (35).
4.
Insert rod seal tool (84) together with rod seal (35) into the hole.
5.
Fit trigger guard (21) with screw (22) to body of gun and
6.
carefully push the tool with rod seal (35) over trigger guard (21) into the
recess in the housing.
7.
Remove trigger guard (21), screw (22) and rod seal tool (84).
