
If new drive belts are installed, check the drive belt
tension again after 30 minutes of engine operation
at the rated rpm.
Adjustment of the Fan Drive Belts
Illustration 37
g06109234
Typical example
1.
Remove the belt guard, refer to OEM for the
correct procedure.
2.
Loosen lock nut (3). Rotating nut (4) counter-
clockwise will move pulley (1) and loosen belts (2).
Rotating nut (4) clockwise will move pulley (1) and
tighten belts (2).
3.
With the correct tension set, tighten nut (3).
Tighten nut (3) to a torque of 102 N·m (75 lb ft).
4.
Use a suitable belt tension tool to set the belt
tension.
5.
Reinstall the belt guard, refer to OEM for the
correct procedure.
If new drive belts are installed, check the drive belt
tension again after 30 minutes of engine operation
at the rated rpm.
i06221395
Coolant (DEAC) - Change
Clean the cooling system and flush the cooling
system before the recommended maintenance
interval if the following conditions exist:
• The engine overheats frequently.
• Foaming is observed.
• The oil has entered the cooling system and the
coolant is contaminated.
• The fuel has entered the cooling system and the
coolant is contaminated.
Note:
Inspect the water pump and the water
temperature regulator after the cooling system has
been drained.
Illustration 38
g02351659
Typical example of a cooling system drain valve. The
valve is towards the bottom of the radiator.
Drain
Pressurized System: Hot coolant can cause seri-
ous burns. To open the cooling system filler cap,
stop the engine and wait until the cooling system
components are cool. Loosen the cooling system
pressure cap slowly in order to relieve the
pressure.
1.
Stop the engine and allow the engine to cool.
Loosen the cooling system filler cap slowly in
order to relieve any pressure. Remove the cooling
system filler cap.
68
SEBU9074-01