Volvo 780 Owner's Manual page 115

Volvo 1990 780 Model
A = Adjust (Correct if necessary) I = Inspect (Correct or Replace if necessary)
R = Replace
Maintenance Operation
thousand miles
(thousand km)
EMISSIONS SYSTEM
MAINTENANCE
Engine oil and Oil filter
Cooling system hoses and
connections
Engine drive belts
Torque manifold nuts
Valve clearance
Vacuum fittings, hoses and
connections
Air cleaner filter
Spark plugs
Fuel system cap, tank, lines
and connections
Torque exhaust system
mounting bolts
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0.6-1.2
5 10 15
(1.0-
(8) (16) (25)
2.0)
R R R R
I
A
A
I
I
A
20 25 30 35
(32) (40) (48) (56)
R R R R
I
I
R
R
40 45 50 55
(64) (72) (80) (88)
R R R R
60
(96)
R
I
I
R
R