Inspection Of Pulser Coil; Inspection Of Oil Pressure Switch - TOHATSU MFS25 Service Manual

Electrical System

5) Inspection of Pulser Coil

Disconnect starboard side #1 pulser coil coupler 1 (2 pin).
1.
2. Measure #1 pulser coil resistance. Replace if other than
specified value.
Disconnect port side #2 pulser coil coupler 2 (1 pin), and
3.
check #2 pulser coil like #1 coil.
This test can be made without removing parts.
Pulser Coil Resistance (Reference Value) : (#1, #2)
Between Red/White (R/W) - Black (B)
Between Red/Yellow (R/Y) - Black (B) : 148 to 222 Ω

6) Inspection of Oil Pressure Switch

Remove oil pressure switch to test it as a
separate unit.
1. Remove vapor separator bolt, move vapor separator to the
left, and remove oil pressure switch.
2. Check electrical conductivity of oil pressure switch. Replace
if no conductivity.
3. Connect vacuum/pressure gauge to oil pressure switch.
Vacuum/Pressure Gauge :
P/N. 3AC-99020-0
4. Apply pressure slowly with vacuum/pressure gauge.
5. Check that oil pressure switch is not conductive with
specified pressure applied. Replace if conductive.
Specified Pressure :
0.020 to 0.029 MPa ( 2.8 to 4.0 PSi )
[ 0.2 to 0.3 kgf/cm
6. Reinstall the component removed.
Oil Pressure Switch :
8 N·m ( 6 lb·ft ) [ 0.8 kgf·m ]
8-16
]
2
1
1 #1 Pulser Coil (2 Pin)
2 #2 Pulser Coil (1 Pin)
1342 1342
1342
2
25/30 2006