4
Maintenance and adjustment
88
ate in accordance with the instruc-
tions given below. Machine run-
away can cause injury or death to
operators or bystanders.
* Only operate the starting motor from
the operator’s seat.
Should it be necessary to use a boost-
er battery as a starting aid, proceed as
follows:
1. Connect one end of the jump lead to
the tractor battery positive (+) termi-
nal and the other to the booster battery
positive (+) terminal.
2. Connect one end of the other jump
lead to the booster battery negative (-)
terminal and the other end to a good
ground point on the engine block.
3. Start the engine from the driver’s seat
in the normal way.
Alternator and fan belt (Fig. 61)
Check the fan and alternator belt
tension every 250 hours.
Warning
If the lower side panel (safety guard)
is removed or loosened whilst checking
the belt tension, it must be refitted and
secured before restarting the tractor.
Renew the belt if it is worn or dam-
aged.To check the deflection, press down
the belt with the thumb at the centre of the
longest free length. With moderate thumb
pressure the correct deflection of the belt
is 10 mm (3/8 in).
If a belt tension gauge is available, the
correct tension is 355 N (80 Ibf). DO NOT
allow the tension to fall below 220 N (50
Ibf).
To adjust the belt tension:
1. Loosen the alternator pivot bolts (1) and
the adjustment link bolt (2).
2. Change the position of the alternator
to give the correct tension. Tighten the
three bolts.
3. Recheck the belt tension to ensure that
it is still correct.
Fig. 61:
1
2
Note
If a new belt(s) is fitted, check/ad-
just the tension again after 25 hours of
operation.
Содержание ITM 475
Страница 1: ...Iran Tractor Industrial Group OPERATOR INSTRUCTION BOOK Tractor Models ITM 475 2WD 4WD ITM 485 2WD 4WD...
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Страница 23: ...General information 1 16 Safety decal location Both side Both side Both side...
Страница 24: ...1 General information 17 General decal location...
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Страница 116: ...5 Specifications 109 Wiring diagram ITM 475 ITM 485...
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