3 - 20
C - EVERY 250 HOURS OF SERVICE
Carry out the operations described previously as well as the following operations.
C1 – COMPRESSOR BELT TENSION (OPTION AIR CONDITIONING)
CHECK - ADJUST
IMPORTANT
If the compressor belt has to be changed, check the tension again after the first 20 hours of operation.
- Open engine bonnet and the lower cover.
- Unscrew the fastening screws 1.
- Remove the protective casing 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 compressor.
- Under a normal pressure exerted with the thumb (45 N), the belt should move
approximately 10 mm.
- Adjust if necessary.
- Loosen the screws 3 by two to three turns.
- Swivel the compressor assembly so as to obtain the belt tension required.
- Retighten screws 3 (tightening torque 22 N.m).
C2 – CAB VENTILATION FILTERS
CHANGE
EXTERNAL CAB VENTILATION FILTER
- Remove protective casing 1 using the ignition
key.
- Lift out cab ventilation filter 2 and replace
it with a new one (see: 3 - MAINTENANCE:
FILTERS, CARTRIDGES AND BELTS).
- Refit the protective casing.
INTERNAL CAB VENTILATION FILTER
- Remove the protective grid 3.
- Lift out cab ventilation filter 4 and replace
it with a new one (see: 3 - MAINTENANCE:
FILTERS, CARTRIDGES AND BELTS).
- Refit the protective grid.
2
1
3
4
1
1
1
1
2
3
3
3
647104
(13/06/2016)
MT
835
/ 1135
/ 1335
ST3B
Summary of Contents for MT 1135 ST3B
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Page 32: ...2 1 2 DESCRIPTION 647104 13 06 2016 MT 835 1135 1335 ST3B...
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Page 104: ...3 1 3 MAINTENANCE 647104 13 06 2016 MT 835 1135 1335 ST3B...
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Page 146: ...4 1 4 OPTIONAL ATTACHMENTS FOR USE WITH THE RANGE 647104 13 06 2016 MT 835 1135 1335 ST3B...
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