Maeda CC1485S-1, Инструкции по эксплуатации, Страница: 270 / 370

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[3] CHECKING/ADJUSTING FAN BELT TENSION
[TENSION CHECK]
1. Open the machinery cover (1).
2. Push the middle portion of the belt between alternator pulley (2) and fan pulley (3) with thumb
(approximately 98N · m [10kgf · m]) to ensure that the deflection (a) is in the standard range of
8.3 to 9.3mm.
・
When measuring the sagging by using a sonic tensiometer, it is normal if the value is within the
range 101 to 113Hz.
[TENSION ADJUSTMENT]
1. Loosen the mounting bolts (5) of alternator (4).
2. Remove the alternator lock nut (6).
3. Turn the adjuster bolt (7) of alternator (2) toward the
loosening direction to adjust the belt tension so that it
shows a sagging deflection of 8.3 to 9.3mm
(approximately 98N
· m [10kgf · m]).
4. Tighten the mounting bolt (5) and lock nut (6).
Tightening torque
・
M8 bolt: 23.5N · m [2.4kgf · m]
・
M10 bolt: 48.0N · m [4.9kgf · m]
5. Close the machinery cover (1).
CAUTION
When checking the tension of fan belt, check the following at the same time:
• Check pulley, V groove and belt for damage and wear. In particular, make sure that the
belt is not in contact with the bottom of V groove.
•
If the belt has been stretched to leave no allowance for adjustment or it gives off a
slipping/squeaking sound, contact us or our sales agency for repair.