Service Manual

Glow Plug Replacement
Replace the glow plug(s) if they do not operate correctly. 3. Remove the glow plug.
(See Glow Plug Test in the Testing section of this
chapter.) 4.
Install a new glow plug. Tighten the glow plug to a
torque of 11-14.5 ft-lb (1.5-2 KgM).
1. Remove the nut and lead wire.
5. Install the lead wire and nuts.
2. Clean the area around the glow plug. This will prevent
di
rt or other contamination from falling through the glow
plug hole into the cylinder.
Oil Pressure Switch Replacement
The engine is equipped with an oil pressure switch
(Fig. 45). This switch activates a lamp on the control
panel and a buzzer if the oil pressure drops below safe
levels during operation.
Pressure switch ON pressure: 0.5 kg/cm
2
(7 psi)
Replace the switch if it is not operating correctly. Before
installing the switch put a small amount of Loctite #567
Thread Sealant (or equivalent) on the switch threads.
When installing the switch make sure the sealant does
not block the oil hole in the switch.
1
Figure 45
1. Oil pressure switch
Liquid Cooled Diesel Engine Page 4 - 36
Workman 3300-D/4300-D