2.7.7 Torque Values
2.8 SAFETY DEVICES
System components are protected from damage caused by unsafe operating conditions by automatically shutting
down the unit when such conditions occur. This is accomplished by the safety devices listed in the following table.
Assembly ft-lb Nm
Power Tray to Frame 40 54
Standby Motor to Power Tray 40 54
Engine to Power Tray 50 67.8
Compressor to Power Tray 40 54
Standby Motor Pulley 36.8 49.7
Engine Pulley 22 30
Compressor Pulley 22 30
Evaporator Fan Motor 13 17.6
Evaporator Fan Grille 7 9.4
Condenser Coil to Chassis 7 9.4
Tensioner to Power Tray 22 3.0
Engine Support 40 5.5
Condenser Fan Blade 18 24.4
Engine Clutch 22 29
Table 2–8 Safety Devices
Unsafe Conditions Safety Device
Low engine lubricating oil pressure
Oil pressure safety switch OP automatic reset (Refer to
Section 2.7.3)
High engine cooling water temperature Water temperature sensor (WTS) (Refer to Section 2.7.2)
Excessive current draw by glow plug circuit, control
circuit or starter solenoid (SS)
Fuse (F1)
Excessive current draw by microprocessor Fuse (F2)
Excessive current draw by control circuit Fuse (F3)
Excessive current draw by speed control solenoid Fuse (F4)
Excessive compressor discharge pressure
High pressure cutout switch HP automatic reset (Refer to
Section 2.7.5)
Excessive compressor discharge temperature
Compressor discharge temperature sensor (CDT) (Refer
to Section 2.7.5)
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