Checking The Oil Level In The Engine; Draining Oil From The Engine; Filling The Engine With Oil; Replacement Of Carter Exhaust Oil Separator Filter Element - Zetor FORTERRA HSX 120 Operator's Manual

Checking the oil level in the engine

Check the oil level daily before starting work with the
tractor in the horizontal position. Unscrew the dipstick,
wipe it with a piece of cloth and screw it back in. After
repeated removal of the dipstick the oil level must not drop
below the lower mark. Replenish oil as necessary through
the filling opening.

Draining oil from the engine

Drain oil by unscrewing the drain plug (3), best
immediately after a drive or after heating the engine to the
working temperature. Clean the drain plug before
returning it to its place. Check the sealing ring for integrity.
Replacing the full-flow engine oil cleaner
The cleaner is replaced at every engine oil replacement.
Before installing the new cleaner clean the sealing surface
of the housing (1) and the cleaner (2). Coat the rubber
sealing with oil that you will fill the engine with and tighten
the cleaner by hand. When the sealing gets in contact with
the block sealing, tighten the cleaner again by 3/4 to 1 1/4
turns. Check the cleaner for possible leaks after starting
the engine.

Filling the engine with oil

Pour the prescribed quantity of engine oil into the filling
opening (2), start the engine and let it run for 2 - 3 minutes
at 750 - 800 rpm. After stopping of the engine and level
stabilization use the dipstick (1) to check the oil level and
check the cleaner, drain plug (3) and other joints for leaks.

Replacement of carter exhaust oil separator filter element

Oil separator is placed on engine's right hand side and is
accessible when lifting the hood. To replace the filter
element dismount four bolts (1) and separator cover (2).
Pull the element (3) to remove it. Clean the inside surface
of separator first and verify the function of reverse valve,
placed in the separator cover, then place back a new filter
element. Verify the correct position of filter element seal,
mount back the separator cover and tighten four bolts (1).
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