Manitou F-E3 Series Operator's Manual page 151

C2 - ALTERNATOR/CRANKSHAFT BELT TENSION
MLT 634 -120 LSU Série F-E3
MLT 634 -120 LSU POWERSHIFT Série F-E3
MLT 735 -120 LSU Série 6-E3
MLT 735 -120 LSU POWERSHIFT Série 6-E3
MLT 741 -120 LSU Série 6-E3
MLT 741 -120 LSU POWERSHIFT Série 6-E3
MLT 1035 L Turbo LSU Série 6-E3
For this operation, we advise you to use the MANITOU tension meter (fig. C2/1) reference
167418.
- Open the I.C. engine bonnet.
- Unscrew the fastening screws 1 (fig. C2/2).
- Lay down the protective guard 2 (fig. C2/2).
- Check the belt for signs of wear and cracks and change if necessary (see: 3 - MAINTENANCE:
FILTERS CARTRIDGES AND BELTS).
- Check the belt tension between the pulleys of the crankshaft and of the alternator.
NEW BELT:
- At a pressure of 15 N ± 0.4 on strap 3 (fig. C2/3), the displacement must be about 3,7 mm.
BELT AFTER 20 HOURS OF OPERATION:
- At a pressure of 13 N ± 0.4 on strap 3 (fig. C2/3), the displacement must be about 3,7 mm.
- Carry out adjustments if necessary.
- Untighten screws 4 (fig. C2/3) by two to three thread turns.
- Swivel the alternator assembly so as to obtain the belt tension required.
- Retighten screws 4 (fig. C2/3) (tightening torque 22 N.m).
- Put the protective guard back 2 (fig. C2/2).
If the alternator belt has to be changed, check the tension again after the first 20 hours of operation.
C3 - COMPRESSOR BELT TENSION (OPTION AIR CONDITIONING)
- Open the I.C. engine bonnet.
- Unscrew the fastening screws 1 (fig. C3/1).
- Lay down the protective guard 2 (fig. C3/1).
- Check the belt for signs of wear and cracks and change if necessary (see: 3 - MAINTENANCE:
FILTERS CARTRIDGES AND BELTS).
- Check the belt tension between the pulleys of the crankshaft and of the compressor.
- Under a normal pressure exerted with the thumb (45 N), the belt should move approximately
10 mm.
- Carry out adjustments if necessary.
- Untighten screws 3 (fig. C3/2) with two to three thread turns.
- Swivel the compressor assembly so as to obtain the belt tension required.
- Retighten screws 3 (fig. C3/2).
- Put the protective guard back 2 (fig. C3/1).
If the compressor belt has to be changed, check the tension again after the first 20 hours of operation.
CHECK - ADJUST
CHECK - ADJUST
3-27
C2/1
C2/2
2
1
1
1
C2/3
4
3
4
4
C3/1
2
1
1
1
C3/2
3
3
1
1