Volvo D12, Operator'S Manual

Page: 83 / 214

Severe Service Schedule for VHD-Series 79
14 Check wiper blades and wiper/washer
operation.
15 Check operation of heater, defroster
and/or air conditioner.
16 Using the tachometer, check and
record the high and low engine idle
speeds.
17 Using the oil gauge, check and record
the high and low engine oil pressures.
18 Check the engine for excessive smoke,
surging, misfiring or any abnormal
noise indicating malfunction.
19 Check steering for excessive play.
Check steering for unusual binding or
free spots. (See page 143.)
20 Check condition of cab interior, floor,
seats and panels.
21 Inspect the safety belt and mounting
hardware for condition. (See the Oper-
ator’s Manual)
22 Check that all safety equipment are
present and in good working order.
23 Check operation of all windows and
doors.
24 Check all glass, mirrors and mirror
brackets.
25 Check that inspection stickers and li-
cences are current.
26 Check the cab ventilation filters.
Change if necessary.
Exterior
27 Turn on and check all exterior lights.
Inspect exposed wiring.
28 Check the hood or cab lock-down
latches for wear and alignment.
29 Check that the cab mounts are se-
curely bolted to the frame and cab.
Check the cab suspension for function.
30 Check condition of air hoses and
pipes. (See page 148.)
31 Check frame rails for cracks and dam-
age. Note if there are any distortions.
32 Check transmission mounting.
33 Check transmission rear bearing for
abnormal clearance. Check transmis-
sion top cover and shift tower for
loose or missing bolts.
34 Check rear axle mounting and U-bolts.
(See page 155.) Check axle flange
nuts. Check axle alignment.
35 Check torque on carrier assembly
mounting bolts.
36 Check pinion bearing for wear.
NOTE! The Volvo forward tandem
axle pinion is designed with a large
bearing clearance.
37 Check the presence and condition of
mud guards or flaps. Check condition
of brackets and hardware.
38 Check body-to-frame or fifth wheel
mounting.
39 Check the fifth wheel latch operation
and wear in jaw or pivot points.
40 Check condition and mounting of air
deflectors.