Engine Protection Devices; Oil Pressure Switch; Thermo Switch; Oil Filter Alarm Switch - Mitsubishi S6B Operation & Maintenance Manual

Chapter 2 NAME OF PARTS

Engine protection devices

The engine protection devices activate an alarm when
an abnormality occurs in the engine in order to protect
the engine and prevent serious problems and acci-
dents. When a protection device is activated, stop the
engine, examine the cause of the abnormality, and
take corrective measures. If the cause of the problem
is unknown, contact a Mitsubishi dealer. Protection
devices installed on the engine and their types (setting
values) and shapes vary depending on the engine
specifications.

Oil pressure switch

The oil pressure switch generates an alarm when the
engine oil pressure becomes low and reaches the
specified pressure.

Thermo switch

The thermo switch activates the alarm system when
the coolant temperature reaches the specified value.

Oil filter alarm switch

The oil filter alarm switch generates an alarm when oil
filters become clogged, the difference in pressure
between inlet and outlet of oil reaches the specified
value.
2-4
Oil pressure switch

Fig. 2-9 Oil pressure switch

Fig. 2-10 Thermo switch
Fig. 2-11 Oil filter alarm switch
Thermo switch
Oil filter
alarm switch