SHOP MANUAL MT26/31 - 12.2004SHOP MANUAL MT26/31 - 12.2004
GENERAL
CH 0 PAGE 18 CH 0 PAGE 19
GENERAL
SHOP MANUAL MT26/31 - 12.2004SHOP MANUAL MT26/31 - 12.2004
GENERAL
CH 0 PAGE 18 CH 0 PAGE 19
GENERAL
Be careful to install an oil seal with its lips in the
right direction as shown below.
Before installing an oil seal, coat it with grease
to prevent dry-friction, which may occur during the break-in
operation of the machine, according
to the following procedure:
a) In case of a double-lip type, uniformly coat the surface of
the groove around the lip with grease.
b) In case of a single-lip type, uniformly and evenly coat the
surface surrounding the lip on the opposite side of the sealing
surface of lip.
Apply the lube oil or grease to the surface an
chamfered edge of the shaft on which the oil
seal is to be installed, so that the shaft may b
smoothly inserted into the oil seal without
pinching the lip and that a proper lubrication of
the shaft during the break-in period of the
machine is accomplished.
Be sure to apply grease only by the fingers. Restrict the
amount of grease to be applied in the range of 40 to 60 per-
cent of the vacancy formed between the lips.
When fitting an oil seal, use of a guide shown below is recom-
mended to prevent the lips of the oil seal from being scratched
or soiled with dust.
Make sure that there are no scratches and dust on the contact
surface (with the shaft) of an oil seal.
Do not use any hydraulic press to fit press-fit an oil seal.
Use only a hand press and a jig. The jig should be a snap
cylinder of 1 to 3 mm smaller in the outer diameter than the
oil seal, and the press-fit surface of the oil seal should be free
from scratches and deformation.
When installed, the oil seal should not be inclined at an angle.
Press-fitted angle of an oil seal should not exceed the per-
missable limit of 0.2 mm/100 mm diameter.
Discard copper gaskets whenever they are disassembled.
Immerse leather gaskets in oil before assembly.
Coat liquid gasket compound to the specially designated
gaskets and o-rings (specified in each step). Make sure that
the surface to be coated with liquid gasket is free from large
scratches or any other damage. Wipe off dust, paint or oil, if
any, from the surfaces to be coated with liquid gasket.
Uniformly apply liquid gasket to the contact surface, and wait
for a few minutes to allow drying of the gasket. When the
liquid gasket becomes dry enough for the finger touch, put the
gasket or o-ring in place.
0.2.20 Handling of Oil Seals
0.2.21 Handling of Gaskets
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