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MAINTENANCE INSTRUCTIONS
from Zetor Tractor Forterra 100 Forterra 110 Forterra 120 Forterra 130 Forterra 140 Operator’s Manual
Recovery Of The Main Air Cleaner Element
−Remove the main element of the dry cleaner (2) by pulling
If the main element is not damaged (there must not be any dust on the inner side of the element), recover it by blowing pressurized air from the inner side of the element.
This way you can recover the main element 3 times at the most. The element must be replaced once a year.
Replacing The Safety Element Of The Air Cleaner
−Remove the safety element of the dry cleaner (3) by pulling. The safety element cannot be recovered. It must always be replaced in these cases.
-If the main element is damaged.
-After covering 2000 hours of work
-At least once every two years.
Reassembly Of The Air Cleaner Elements
When reassembling the air cleaner elements proceed in the reverse order.
Observe the following points during the element reassembly:
-Make sure the contact surfaces are clean.
-During the assembly the elements must not get deformed and after installation they must not vibrate.
-After closing of the cleaner with the lid the whole cleaner must be perfectly leak-proof.
-After the maintenance of the dry air cleaner ensure proper functioning of the clogging indicator again.
Hydrostatic Steering Oil Tank
The tank is accessible after opening the hood. It is found in the front part on the left side of the tractor.
By dipstick check (A) the height of oil level in hydrostatic steering tank, keep the level of oil between MIN. and MAX. marks, see fig. (A). If necessary, replenish the oil after nut disassembly (1) and removing the lid of tank.

REPLACING THE FILTRATION ELEMENT OF THE HYDROSTATIC STEERING
1 - Dismantle the left rear side plate of the hood
2 - Place a suitable container under the hydrostatic steering tank
3 - Release the drain screw
4 - Drain oil from the tank