Belt - Inspect; Belt Tensioner - Check - Perkins 1204F-E44TA Operation And Maintenance Manual

106
Maintenance Section

Belt - Inspect

2. Disconnect the negative battery terminal. Ensure
that the cable cannot contact the terminal. When
four 12 V batteries are involved, 2 negative
connections must be disconnected.
3. Remove the positive connection.
4. Clean all disconnected connection and battery
terminals.
5. Use a fine grade of sandpaper to clean the
terminals and the cable clamps. Clean the items
until the surfaces are bright or shiny. DO NOT
remove material excessively. Excessive removal
of material can cause the clamps to fit incorrectly.
Coat the clamps and the terminals with a suitable
silicone lubricant or petroleum jelly.
6. Tape the cable connections in order to help
prevent accidental starting.
7. Proceed with necessary system repairs.
8. In order to connect the battery, connect the
positive connection before the negative connector.
Belt - Inspect
Illustration 54
Typical example
To maximize the engine performance, inspect the
belt (1) 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).
To replace the belt, refer to Disassembly and
Assembly, "Alternator Belt - Remove and Install". If
necessary, replace the belt tensioner. Refer to
Disassembly and Assembly, "Alternator Belt -
Remove and Install" for the correct procedure.

Belt Tensioner - Check

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Illustration 55
Typical example
Remove the belt. Refer to Disassembly and
Assembly, "Alternator Belt - Remove and Install".
Ensure that the belt tensioner (1) is securely
installed. Visually inspect the belt tensioner for
damage. Check that the pulley on the tensioner
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rotates freely and that the bearing is not loose. Some
engines have an idler pulley (2). Ensure that the idler
pulley is securely installed. Visually inspect the idler
pulley for damage. Ensure that the idler pulley can
rotate freely and that the bearing is not loose. If
necessary, replace damaged components.
Install the belt. Refer to Disassembly and Assembly,
"Alternator Belt - Remove and Install".
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