Operating Manual
7.3 Fitting New Oil Seals
1.
Remove gearcase cover or front seal
retainer and press out the old seal.
2.
Before fitting examine the new seal to
ensure that it is clean and undamaged. If
a spring is provided see that it is correctly
located.
3.
Examine the shaft and remove all
roughness, sharp edges of key ways,
screw threads of shoulders over which
the sealing lip is passed. The slightest
scratch on the sealing edge of an oil seal
may cause leakage.
4.
Smear the outside diameter of the seal
with grease.
5.
Press the seal into the housing (see that
the spring will face the sealed liquid) a
firm uniform pressure should be exerted
preferably by means of an arbour press in
combination with a suitable tool. (The
diameter of the tool should be 0.1- 0.4mm
smaller than the housing diameter). Care
must be taken to ensure the seal does not
enter the recess in a tilted position as this
will cause damage to the seal.
6.
Smear the sealing lip with clean grease.
7.
Pass the seal and housing along the
shaft, a slight rotary action will assist the
operation. Fasten the housing in position,
using jointing compound on metal to metal
faces.
8.
Do not allow the assembly to rest for any
length of time at an incomplete stage of
fitting where it may cause the weight of
the shaft or housing to be borne by the
seal resulting in damage or distortion of
the seal.
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