Onan MDJE Service Manual

mm WEIGHTS
LOW OIL PRESSURE CUT-OFF SWITCH
The switch (Figure 83) is located on the oil filter
adapter plate below the oil filter. Aspecial start switch
jumpers
the cut-off switch during starting to allow
engine to build up oil pressure and close the switch.
The switch closes at 13 to
15 psi (90 to 104 kPa),
under increasing pressure. If oil pressure falls below
13 psi
(90 kPa), the switch opens.
IRE
FIGURE 83. LOW OIL PRESSURE SWITCH
CENTRIFUGAL SWITCH
This switch (Figure 84) is mounted on the gear cover
backplate and operates directly
off the camshaft
gear. Normally open, the switch closes when engine
speed builds up to about
900 rpm. This allows the
engine
to build up sufficient oil pressure so that it can
be started.
For correct operation, maintain the switch gap at
0.020 inch (0.51 mm). See Figure 85.
Check the contacts for dirt or pitting when adjusting
the
gap. Clean the contacts with paper or replace if
they are badly pitted.
A715 u
FIGURE 84. CENTRIFUGAL SWITCH ASSEMBLY
Disassembly
1.
2.
3.
4.
5.
Disconnect the battery to prevent accidental
shorts.
Remove the switch cover, to reveal the point set.
Remove the point set assembly by removing the
screws holding
it to the plate. Pull out the plunger
and plunger diaphragm.
Remove the centrifugal switch plate,
to reveal the
cam and weight assembly.
Pull out the cam and weight assembly.
Be carefulnot to lose thespacer
mounted
on the gear shaft
behind the gear.
CENTRIFUGAL
FIGURE 85. BREAKER POINTS
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Onan MDJE Specifications

General

Brand	Onan
Model	MDJE
Category	Engine
Language	English