Inspection Of The Oil Pressure Switch - TOHATSU MFS 25D Service Manual

7) Inspection of the Oil Pressure Switch

Remove the part to test it as a separate unit.
Remove the oil pressure switch 1.
1.
2. Check the conductivity of the oil pressure switch. Replace
it if it is not conductive.
3. Connect the vacuum/pressure gauge to the oil pressure
switch.
Vacuum/Pressure Gauge:
P/N. 3AC-99020-1
4. Apply pressure slowly with the vacuum/pressure gauge.
5. Check that the oil pressure switch is not conductive at the
specified pressure. Replace it if it is conductive.
Oil Pressure Switch Pressure:
0.029 to 0.049 MPa (4.2 to 7.1 PSI)
[0.3 to 0.5 kgf/cm
6. Reinstall the oil pressure switch and tighten to the
specified torque.
Apply a screw locking agent (ThreeBond 1327)
on the threaded section of the oil pressure switch
and apply silicone grease on the screw of oil
pressure switch lead wire.
Oil Pressure Switch:
8 N·m (6 lb·ft) [0.8 kgf·m]
4st 25/30 2022
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