Volvo D12, Operator'S Manual

Page: 86 / 214

82 Severe Service Schedule for VHD-Series
Category B:
Every 1,000 Hours or 6 Months
(Whichever comes first)
1 Do the maintenance points as de-
scribed under Category a and Category
A.
2 Check the frame for lose bolts. If nec-
essary, tighten M14 bolts to a torque
of 150 ± 24 ft-lb (200 ± 33 Nm).
3 Drain water from the fuel tank. (See
page 138.)
4 Remove corrosion from cable termi-
nals and battery posts. Spray the area
with a corrosion preventive.
5 Make sure all ground connections are
secure. Check battery terminal connec-
tions.
6 On engines with intake air preheater:
test the function.
7 Measure and record brake lining thick-
ness. (See page 146.)
8 Check wheel brake components for
wear and general condition.
9 Check front spring, shackles, brackets
and U-bolts. (See page 155.)
10 Check the steering gear mounting to
the frame. Check pitman arm mount-
ing for secureness and wear. Check the
steering linkage for wear.
11 Check the steering knuckle bearings
for wear.
12 Inspect level and condition of power
steering oil. (See page 143.)
13 Check front and rear wheel bearings.
(See page 154.)
14 Check rear suspension, springs,
mounts and U-bolts. (See page 155.)
15 Check shock absorber mountings and
for signs of leakage.
16 Examine all rims for cracks. Inspect
for rust streaks around the nuts. (See
page 152.)
17 Inspect coolant pump, engine fan and
fan hub for wear. Test the function of
the fan engagement.
18 Pressure check cooling system. Inspect
for leaks in the cooling system.
19 Inspect vibration damper for leakage,
wobble, swelling or deformation.
20 Check engine valve clearance after the
first 6 months. Check every 12 months
thereafter. Adjust if necessary.
21 Check the turbocharger mounting. In-
spect for leakage. Inspect impeller axle
for looseness and end play. Inspect the
turbocharger for internal oil leaks.
22 Examine air intake piping from the air
cleaner to the turbocharger. Check for
loose clamps, cracks, punctures or
tears.
23 Disconnect and inspect the inside of
air intake pipes for buildup or deposits
of foreign material. If deposits are
found, clean and reassemble.
24 Inspect the exhaust system for signs of
leakage. Check all clamps and brack-
ets for cracks and looseness.
25 Inspect air condition compressor
brackets and mounting hardware for
cracks or looseness.