54
clean the filter element by blowing on the filter element with compressed air at a pressure not
exceeding 0,7 MPa and keeping the nozzle at a reasonable distance from the element. The air
stream should be directed opposite to this of air flow in normal operation,
before refitting the filter element, wipe out its compartment with a damp cloth to remove the
remaining dust particles,
refit the filter element correctly to ensure proper air flow and tightness,
refit the filter guard.
If the filter element is moist and the above cleaning procedure gives no satisfactory results, wash it
in warm (about 30
C) solution of water and non-foaming detergent for automatic washing machine.
Soak the element in solution for about 10 minutes and then agitate the element in solution to help
remove the dirt. Ensure the element is rinsed thoroughly in clean water, then shake off water and
allow 12 hours for the filter to dry. After drying inspect the element for holes or tears by looking
through it towards a bright light and particularly check for damaged gasket.
Do not wash the filter element more than 10 times.
Do not direct the water jet onto the cab air filter, when washing the tractor.
Grease elements of operator’s seat suspension; every 300 hours of operation.
5.12. Braking system.
Grease the brake pedal pivot every 150 hours of operation (Fig. 5.12).
Rys. 5.12. Brake pedal pivot pin grease point
.
5.12.1. Service break adjustment.
Check the brakes operation every day.
Pedal correct free travel should be 20 - 25 mm.
If the free travel is out of the limits, as given above, or the braking performance of wheels is uneven,
adjust the brakes as follows:
chock the front wheels an raise the rear wheels just clear of the ground,
release the parking brake,
unlatch the brake pedals,
remove the instrument panel shroud,
turn the adjusting nut until the respective brake starts to operate,
adjust the length of operating cable so that there is a free travel at the pedal of 20 to 25 mm,
if the cable adjustment range does not permit obtaining correct adjustment, adjust the length of
operating rods of the system
repeat the procedure for the other brake,
road test the tractor with the brakes latched and check the brakes for pulling to one side. Any
tendency to pulling to one side should be counteracted by increasing the pedal free travel on the
side to which the tractor pulls.
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