Operation and maintenance manual

Section 190-0270

Electrical System - Switches and Sensors

SM 2252 10-03

(17, Fig. 2) when pressure drops to 4.8 bar (70 lbf/in

)

or lower.

Air Cleaner

Air Cleaner Restriction Indicator (10) - Mounted on

the air cleaner outlet pipe, the indicator indicates the

degree of air cleaner element restriction as the yellow

band rises in the gauge window. The filter element

should be replaced if the yellow band locks in place

when the engine is shut down. Reset the gauge by

pressing the button on the gauge with the engine

running.

* * * *

Body

Body Up Proximity Switch (9) - Mounted on the

inside of the trailer left hand frame rail. When the body

is raised off the trailer frame, the switch sends a signal

to illuminate the 'Amber' body up warning light

(6, Fig. 2).

Note: Never move the vehicle until body up warning

light (6, Fig. 2) goes out, indicating that the body is

fully lowered onto the trailer frame.

Note: The proximity switch prevents the body being

fully powered down onto the chassis. At a

predetermined height, the switch automatically

defaults the body control valve to the detented

'FLOAT' condition.