TOHATSU MFS 4 Service Manual

3-10
Maintenance
4st 4/5/6 2011
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. Apply specified pressure to gear base, and check if the
pressure is maintained without further compression for 10
seconds.
Specified Gear Case Maintained Pressure :
0.049 MPa (7 psi) [0.5 kgf/cm
2
]
9) Inspection of Gear Case (for leakage)
1. Drain gear oil.
2. Remove upper oil plug 1 and connect a commercially
available leakage tester to this hole.
· Rotating propeller shaft while maintaining
pressure and testing with gear oil drained
make it easy to find leakage due to wear of oil
seal lip.
· Depressurize gear case and cover oil plug
area with a piece of rag before disconnecting
leakage tester.
1
CAUTION
Do not apply pressure to gear case over
specified value.
Doing so can cause damage to oil seal.
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TOHATSU MFS 4 Specifications

General

Brand	TOHATSU
Model	MFS 4
Category	Outboard Motor
Language	English