Air Motor Repair
30
3A9121A
NOTE:
The piston and rod are epoxied together and
only available as an assembly (10). Do not attempt to
take apart the piston and rod assembly.
8. Remove the o-ring (13) from around the piston (10).
9. Use a flathead screw driver to remove the retaining
ring (5) from the bottom cover (1).
10. Remove the u-cup seal (4), and wiper (2) from the
bottom cover (1).
Reassemble the Air Motor
NOTE:
For additional parts information, see
NOTE:
The bearing (3) is pressed in the bottom cover
(1) and is only available with Bottom End Cap Repair kit
17V316 (XL6500) or 17V315 (XL3400).
1. Lubricate and install wiper (2) on the bottom cover
(1).
2. Lubricate and install new u-cup seal with flange (4),
with the lips facing up, in the bottom cover (1) from
the bottom. The seal will snap into place.
3. Install o-ring (6) in the bottom cover (1). Install
retaining clip (5). Snap in the new bumper (9).
4. Lubricate the inside of the cylinder (14). Lower the
cylinder onto the bottom cover (1).
5. Lubricate and install the o-ring (13) around the
piston (10). It will fit loose.
9
2
8
4
t
i
32172a
7
Install the muffler (17) around the cylinder (14) and in the
groove on the bottom cover (1). Be sure the front opening is
lined up with the flat on the bottom cover (1). There are two
small lines molded into the muffler. These line up with the
closest manifold (25), mount screw holes on the bottom
cover (1), and the top cover (22). Be sure both gaskets (16)
are on the muffler (17).
7
9
5
3
6