9
Oilless Reciprocating Air Compressor Pumps
WRIST PIN BEARING SEAL REPLACEMENT (REPLACE EVERY 10,000 HOURS)
Replacing Oil Seal
1. Insert the plastic retention sleeve
which protects the needle bearing
from dropping out.
2. Remove the two oil seals by using a
screwdriver.
3. Clean both surfaces where oil seals
are removed.
4. Push the oil seal into the small bear-
ing end horizontally.
5. Press the oil seal with a C-clamp into
the small bearing end.
6. Repeat on opposite side.
7. Apply a small volume of adhesive at
several points.
8. Remove the retention sleeve inserted
at the first step.
Pushing
Board
Figure 16
Figure 21
Figure 20
Figure 19
Figure 18
Figure 17
Figure 22
NOTE:
You may use a “C” clamp or two large washers and bolt with nut through the bearing. Then apply pressure to install
the seals. This makes it easy to replace the seals without removing the crankshaft.
