Inspection Of Stop Switch; Inspection Of Oil Pressure Switch - TOHATSU MFS 4D Service Manual

4) Inspection of Stop Switch

1. Check conduction of stop switch, and replace if not
conductive.
This test can be made without removing parts.
Switch Position
Remove
lock plate. a
Attach
lock plate. b
Press
switch. c

5) Inspection of Oil Pressure Switch

Remove the part and test it as a separate unit.
1. Check electrical conductivity of oil pressure switch.
Replace if no conductivity.
2. Connect vacuum/pressure gauge to oil pressure switch.
Vacuum/Pressure Gauge :
P/N. 3AC-99020-1
3. Apply pressure slowly with vacuum/pressure gauge.
4. Check that oil pressure switch is not conductive with
specified pressure applied. Replace if conductive.
Specified Pressure :
0.020 - 0.029 MPa (2.8 - 4.0 psi) [0.2 - 0.3 kgf/cm
5. Reinstall the part.
Oil Pressure Switch :
8 N · m (6 lb · ft) [0.8 kgf · m]
4st 4/5/6 2020
Lead Wire Color
Brown (Br) Black (B)
2
a
c
]
b
1342 1342
1342
8-9
8