Service manual

Group 170 Preventive Maintenance

A Oil Plug

B Oil Filter

1 Regulator Valve

2 Bypass Valve for Oil

3 Overﬂow Valve for Oil Filters (By-

pass)

4 Reducing Valve

Change Engine and Oil Filters

For further information concerning component speciﬁca-

tions see service information in Group 1, “Oil and Filter

Change Intervals for Volvo Components, All Models”,

Publication Number 175-001, and any appropriate ven-

dor literature.

Change engine oil and ﬁlters. If required by customer,

take a sample of the oil for analysis.

Note: Make sure the oil type is correct and has the cor-

rect viscosity. The two are not the same and are equally

important in giving the right protection for the engine.

Oil Change

Before working on a vehicle, set the parking brakes,

place the transmission in neutral, and block the

wheels. Failure to do so can result in unexpected

vehicle movement and can cause serious personal in-

jury or death.

WARNING

Serious burns can result from contact with a hot en-

gine or engine oil. Take precautions when draining the

oil. Wear gloves and let the engine cool down before

draining.

CAUTION

Prolonged contact with the used engine oil may be

harmful. Use rubber gloves when handling used oil.

Wash skin thoroughly if it comes in contact with used

oil.

It is important to drain as much oil as possible. Try to

change oil immediately after driving, when the oil is

warm. Always replace the oil ﬁlters when changing oil.

Note: It is not recommended to mix synthetic oils with

petroleum based oils.

Note: Always dispose of oil according to Federal and lo-

cal regulations. Used oil disposed of inappropriately can

contaminate nature, waterways, community drinking wa-

ter, and kills wildlife.

Note: For Oil Change Intervals for the D7 and D12 En-

gines refer to Function Group 2.