Manitou MT 1335 ST3B - Compressor Belt Tension; External Cab Ventilation Filter; Internal Cab Ventilation Filter; C - Every 250 Hours of Service

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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