Volvo D12, Operator'S Manual

Page: 93 / 214

Heavy-Duty Service Schedule for VHD-Series 89
Maintenance Categories
Category A:
Every 12,000 miles (19,000 km) or 4 Months
(For Vehicles with D7 Engine Using VDS-2 plus CH-4 oil)
Every 15,000 miles (24,000 km) or 4 Months
(For Vehicles with D12 Using VDS-2 plus CH-4 oil, Cummins or Detroit Diesel Engine)
(Whichever comes first)
1 Perform the daily checks as described
in the beginning of the vehicle Opera-
tor’s Manual.
2 Change engine oil. (See page 116.)
3 Change oil filters, both full-flow and
bypass. (See page 117.)
4 Lubricate the chassis according to the
lubrication chart on page 162.
5 Look for signs of fluid leaks as the ve-
hicle is approached.
6 Clean the vehicle if necessary. All ar-
eas that need close inspection must be
clean.
7 Check that all appropriate licences and
stickers are in place and that they are
valid.
8 Check all telltale and warning indica-
tors in instrument cluster. (See
Operator’s Manual.)
9 Check lights before going on road test.
Road Test
10 Start engine; check starter motor.
11 Operate the clutch several times.
Check for smooth engagement and op-
eration of clutch brake.
12 Check parking brake hold.
13 While driving, apply brakes and check
for even stopping and quick release.
Check ABS function.
14 Check engine controls and perfor-
mance.
15 Check exhaust brake and/or engine
brake operation. Brake should
engage/disengage as the pedal is ap-
plied/released.
16 Shifting through the gears, check trans-
mission for smoothness of operation.
17 Check cruise control, if equipped.
18 Check for excessive free play in the
steering wheel. Turning operation
should be smooth and free of rough
spots. Check for vibration in the steer-
ing wheel or column.
19 Listen for unusual noises. Make sure
vehicle is riding smoothly; free from
roughness or excessive vibration.
20 Check instrument and gauge operation.
21 Check heater and air conditioning.