Accessory belt tension

RIBBED BELT

Tensioning procedure

Engine cold (ambient temperature).

Fit the new belt.

Fit the sensor of Mot. 1273.

Turn the sensor knob until it trips (three "CLICKS").

Tension the belt until the recommended fitting value is shown on the Mot. 1273 display.

Lock the tensioner, check, adjust the value.

Turn the crankshaft three turns.

Check that the tension value is within the fitting tension tolerance, otherwise readjust it.

NOTE:

Do not refit a removed belt.

Replace the belt if the tension is below the minimum operating value.

Small cuts or cracks are not criteria for replacing the belt.

D7F ENGINE

Alternator belt

A Crankshaft
B Alternator
C Power steering pump
T Tensioner
→ Tension check point

Power steering belt

A Crankshaft
B Alternator
C Power steering pump
T Tensioner
→ Tension check point

E7J ENGINE

Alternator belt

A Crankshaft
B Alternator
C Power steering pump
T Tensioner pulley
→ Tension check point

Power steering belt

Bolt A: alternator belt tension
Bolt B: power steering belt tension

NOTE: Tighten the nuts of bolts (A) and (B) after tensioning.

F8Q ENGINE

Alternator belt

A Crankshaft
B Alternator
C Power steering pump
T Tensioner pulley
→ Tension check point

Alternator and power steering belt

A Crankshaft
B Alternator
C Power steering pump
T Tensioner pulley
→ Tension check point