5 -51
(4) Alternator and drive belt - Check
The tractor alternator
①
is belt-driven from the
engine crankshaft pulley. It is important that
belt slippage does not occur, or the charging
system will be affected.
To adjust the fan belt, see page 5-31.
Required alternator periodical maintenance:
• Belt adjustment
• Inspect alternator terminals
• Clean alternator cooling fan fins
When working on or checking the alternator, adhere to following precautions or alternator damage
may occur:
• Do not UNDER ANY CIRCUMSTANCES short the field terminal of the alternator to ground.
• Do not disconnect the alternator output lead or battery cables while the alternator is operating.
• Do not remove the alternator from the tractor without first disconnecting the negative (-) battery
cable. When removing the battery, disconnect the negative (-) cable first.
• To install a battery, MAKE SURE that the positive (+) cable is connected first and that the
negative terminal is connected to ground. Reverse polarity will destroy the rectifier diodes in the
alternator.
NOTE: If the battery charge warning indicator illuminates, indicating that the alternator is not
charging the battery, check the fan belt and the wiring connections. If these items are in
satisfactory condition and the warning light continues to indicate no charge, contact your authorized
local dealer.
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