10-31
Chapter 10 COOLING SYSTEM
2.14 Fan Drive - Inspect
Inspect the fit between the fan drive shaft and fan drive case bearing, and if unusual wear is found, replace with new one.
2.15 Bushing Ring, Friction Rubber and Grommet - Inspect
Inspect the bushing ring, friction rubber, and grommet, and
if any defect is found, replace the part with a new one.
2.16 Oil Seal Sleeve - Inspect
If any defects such as dents, scars, wear and looseness that
can lead to oil leakage are found, replace the oil seal sleeve
with a new one.
2.17 Oil Seal Sleeve - Replace
2.17.1 Oil Seal Sleeve - Remove
Place a chisel vertically to the sleeve end face and tap three
places with a hammer. When the sleeve is loosened, remove
the sleeve.
If the sleeve can not be removed by the above procedure,
hold the chisel against the sleeve in the axial direction and
tap on it lightly to make the sleeve expand. Once the inter-
ference between crankshaft and sleeve is reduced, the sleeve
will be removed easily.
2.17.2 Oil Seal Sleeve - Install
Heat the oil seal sleeve to a temperature of 180 to 200 °C
[356 to 392 ºF] with a heater.
Insert the oil seal sleeve to drive shaft.
Oil Seal Sleeve - Install
Item Nominal value Standard value
Inside diameter of case bearing housing
ø100 mm [3.94 in.] 99.987 to 100.022 mm [3.9365 to 3.9379 in.]
ø110 mm [4.33 in.] 109.987 to 110.022 mm [4.3302 to 4.3316 in.]
Bearing
outside diameter
ø100 mm [3.94 in.] 99.985 to 110.000 mm [3.9364 to 4.3307 in.]
ø110 mm [4.33 in.] 109.985 to 110.000 mm [4.3301 to 4.3307 in.]
Inside diameter
ø45 mm [1.77 in.] 45.002 to 45.013 mm [1.7717 to 1.7722 in.]
ø50 mm [1.97 in.] 50.002 to 50.013 mm [1.9686 to 1.9690 in.]
Outside diameter of shaft fit to bearing
ø45 mm [1.77 in.] 44.988 to 45.000 mm [1.7712 to 1.7717 in.]
ø50 mm [1.97 in.] 49.988 to 50.000 mm [1.9680 to 1.9685 in.]
Use protective gloves when you touch hot parts.
Handling with bear hands could result in burns.
Drive shaft
Oil seal sleeve