Isuzu AU-4LE1T, Руководство по обслуживанию

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WARNING:
1. In adding oil, take care not to spill it. If you spill oil on
engine or equipment, wipe it properly, or this could lead to a
fire and the risk of personal injury and/or equipment
damage.
2. For model that employs the closed PCV, excessive oil may
cause hunting in oil pressure, increase in the oil
temperature, oil seepage from the intake system and
engine oil intrusion into the combustion chamber, resulting
in engine damage.
(2) Fan Belt Check
Check the fan belt for tension and abnormalities.
WARNING:
For the sake of safety, before conducting fan belt check, make
sure that the engine is stopped and is not be operated during
check.
1) When the belt is depressed with the thumb (about 100 N (22 lb)
pressure) at the midway between the alternator pulley and fan pulley,
the belt tension is correct as the following:
Fan belt slackness : 8 – 10 mm (0.31 – 0.39 in)
When the belt tension is too high, it will result in alternator failure.
Contrarily, loose belt will cause belt slippage which may result in
damaged belt and abnormal noise.
IMLE0012