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Maintenance
9) Inspection of Gear Case (for leakage)
1.
Drain gear oil.
Remove upper oil plug 1 and connect a commercially
2.
available leakage tester to this hole.
3.
Apply specified pressure to gear case, and check if
t h e p r e s s u r e i s m a i n t a i n e d w i t h o u t f u r t h e r
compression for 10 seconds.
Specified Gear Case Maintained Pressure :
0.049 MPa (7 psi) [0.5 kgf/cm
· When the propeller shaft is rotated while
maintaining the pressure, it is easier to locate
air leaks due to the oil seal lip being worn out.
area with a piece of rag before disconnecting
leakage tester.
Do not apply pressure to gear case over
specified value.
Doing so can cause damage to oil seal.
4.
If the specified pressure cannot be maintained, check
oil seals of drive shaft and propeller shaft and O ring of
shift shaft, and propeller shaft housing and water
pump case lower for damages.
3-10
2
]
CAUTION
1
4st 4/5/6 2020
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