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84
Maintenance Section
Cooling System Coolant (DEAC) - Change
Illustration 67
Typical example
(1) Polly vee belt
(2) Ribs of the belt
Inspect
Illustration 68
Typical example
To maximize the engine performance, inspect the
belt for wear and for cracking. Replace the belt if the
belt is worn or damaged.
• Inspect the belt for cracks, splits, glazing, grease,
displacement of the cord and evidence of fluid
contamination.
The belt must be replaced if the following conditions
are present.
• The belt has a crack in more than one rib.
• More than one section of the belt is displaced in
one rib of a maximum length of 50.8 mm (2 inch)
Replace
1. Before the belt has been removed, ensure that rout
of the belt from crankshaft across and around the
other pulley and idlers is understood.
2. The tensioner (5) has a square drive (2) that can
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be used to remove the tension from the belt,
allowing the belt to be removed.
3. When the belt has been removed, ensure that any
idler or pulley that supports the belt is clean and
the idler or pulley rotates freely.
For a full description on replacing the belt refer to
Disassembly and Assembly, Alternator Belt -
Remove and Install.
Cooling System 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.
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