Shibaura SG280E, Workshop Manual

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27
7. Bearing holders
<< Center bearing >>
1) Remove the bearing holder, and replace the metal if
it shows signs of peeling, melting, notching, or poor
contact.
2) Use a plasti-gauge to measure the oil clearance
between the center journal and the metal.
3) If the result of the inspection shows that the oil
clearance exceeds the usage limit, replace the
metal.
<<
Thrust washer
>>
Inspect the bearing holder and thrust washer. If there
are signs of wear, poor contact, or burnout, or if the
thickness exceeds the usage limit, replace the thrust
washer.
Clearance between center journal and metal
(mm)
Assembly standard Usage limit
Bearings No.
2, 3, and 4
0.044 to 0.102 0.2 or more
Thickness of thrust washer (mm)
Assembly standard Usage limit
2.95 to 3.00 2.8 or less
Upper and lower bearing holder tightening torque
(N
⋅
m)
48 to 54 (5.0 to 5.5 kgf ⋅ m)
Fig.2-5-24