Replacing Valve Tappet Seals; Replacing The Rod Seal - WAGNER GM 4700AC Original Operating Manual

VERSION 06/2018

10.4.1 REPLACING VALVE TAPPET SEALS

1. Using a size 13 mm; 0.51 inch open-end wrench, counterhold valve tappet (50) and,
using a size 7 mm; 0.28 inch open-end wrench, unscrew cap (53).
2. Remove the air valve seal (51) and seal (52) and replace with new seals. A special tool
(order number 179989) is necessary for the assembly of the air valve seal (51).
3. Screw the valve tappet (50) and cover (53) together by hand. Carefully tighten in
small increments with a 7 mm; 0.28 inch and 13 mm; 0.51 inch open-end wrench until
a slight resistance is perceptible when moving the valve rod (34) in the valve tappet.
Note:
The seal (52) can be pulled out of the cover (53) with the help of an eye bolt.

10.4.2 REPLACING THE ROD SEAL

1. Carefully pull the rod seal (35) out of the gun housing.
2. Clean sealing surfaces in the gun housing.
3. Fit the new rod seal (35) to the rod seal tool (84).
Note:
Note the installation
position of the rod
seal (35).
4. Insert the rod seal tool (84) together with the rod seal (35) into the drilled
hole.
5. Fit the trigger (21) with screw (22) to the gun body.
6. Carefully push the tool with the rod seal (35) over the trigger (21) into the
recess in the housing.
7. Remove the trigger (21), screw (22) and rod seal tool (84).
ORDER NUMBER DOC2311730
B_02688
22
84
35
Spraying
direction
50
51
52
53
B_02274
21
B_02268
35