80 Severe Service Schedule for VHD-Series
41 Check condition of paint and overall
appearance of vehicle.
Fuel System
42 Inspect fuel tanks for damage, leaks or
corrosion.
43 Drain the fuel separator and clean the
view glass. (See page 128.)
44 Inspect the fuel lines for signs of wear
or chafing.
Electrical
45 Inspect battery mounting for proper
placement, secureness and free from
corrosion. Inspect the cables for
proper length, undamaged insulation
and broken wire strands. Check termi-
nal ends for secureness and cracks.
(See page 149.)
46 Test the batteries (Maintenance-free
batteries: check the charging indicator
to determine if the battery is in need
of charging.)
Brakes
47 Check the air dryer function. Check
for oil in the dryer discharge. (See
page 145.)
48 Inspect all air lines for routing, mount-
ing, chafing and signs of leaks. Check
all brake valves for secure mounting
and audible leaks.
49 Check that the dual brake system
works properly. (See page 147.)
50 Check slack adjuster operation, mount-
ing and adjustment. (See page 146.)
Steering and Suspension
51 Check condition of air springs (if ap-
plicable).
Wheels and Tires
52 Check the tightness of all wheel nuts
with a torque wrench. Check the tire
tread depth. (See page 152.)
53 Inspect each tire for unusual wear pat-
terns. (See page 153.)
54 Check tire inflation. Check for leaks in
the valves. (See page 154.)
Engine Compartment
55 Visually inspect the component and all
fluid pipes, hoses, seals, gaskets and
connection points on engine, transmis-
sion and rear axle(s) for exterior signs
of leakage.
56 Inspect all hoses for cracking, cuts,
tightness, routing, chafing and evi-
dence of leaks. Inspect steel-braided
lines for wear and rust. Inspect clamps
for tightness and insulation.
57 Check all fluid levels.
58 Clean the radiator and charge air
cooler. (See page 127.)
59 Inspect radiator shrouds for secureness
and evidence of fan contact.
60 Inspect all drive belts on the engine
for cuts, wear, weathering, proper ten-
sion and alignment. Check the
function of the belt tensioner or mea-
sure the belt tension. (See page 120.)
61 Test fuel pressure, relief valve pressure
and feed pressure. Inspect fuel pump
for secure mountings.
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