Group 170
Preventive Maintenance
69
Check After Test Driving
Check Pneumatic Switches
Note: For further information refer to literature in Func-
tion Group 8.
If vehicle is equipped with a pneumatic 5th wheel sliding
release, operate release mechanism while listening
through door or have a helper check the function. Verify
that the telltale indicator on the instrument cluster lights
up.
Note: If vehicle air pressure is below approximately 720
kPa (75 psi), pneumatic switches will not function. This is
a safety lockout for the air brake system.
Operate the differential lock switch(es). Verify engage-
ment by listening to the lock mechanism operating and
that the telltale indicator lights up on the instrument clus-
ter.
If equipped with air suspension levelling switch, operate
the switch. Verify function by watching the chassis being
lowered. Verify that the telltale indicator lights up on the
instrument cluster.
Make sure the lock function of each switch works so that
the switch can not be engaged without operating the lock.
Check Steering Column Adjustment
Note: For further information refer to literature in Func-
tion Group 6.
Press down the release pedal and move the steering
wheel column through its possible positions. It should be
possible to move the steering column without binding or
using excessive force. When the pedal is released, the
column should be firmly locked in place.
93
Содержание VHD
Страница 1: ...Service Manual Trucks Group 177 500 Preventive Maintenance Basic Service VN VHD PV776 TSP151476 ...
Страница 4: ...2 ...
Страница 10: ...8 ...
Страница 24: ...22 ...
Страница 35: ...Group 170 Preventive Maintenance Comments 33 ...