Action 47. Changing oil in the hydraulic
system
• Prior to changing oil, warm up oil in the hy -
draulic system.
• Place the tractor on the flat ground, lower
and detach the mounted machine.
• Brake the tractor and stop the engine.
• Unscrew the filler cap (2) (see page F8) and
the drain plug (1) from hydraulic system
tank and drain oil into waste oil vessel.
ATTENTION! Be careful to avoid contact
with hot oil. Dispose of waste oil properly.
• Replace the drain plug (1) and fill the sys-
tem with fresh oil. Refit the filler cap (see
Action 3).
NOTE: When using the machines requiring
large amount of oil taking, add oil to the level
corresponding to the upper mark “С”. When
doing this, the hydraulic cylinders shall be
with plungers indrawn.
Action 47а. Changing oil of the HPS (MTZ-
900.3/920.3/950.3/952.3)
• Follow the recommendations given for the
above action. To get access to the HPS tank,
lift the engine facing upwards to the stop and
fix it safely in the lifted position.
• Remove the filler neck cap (2) and the drain
plug (3). Drain oil from the tank into waste oil
vessel. Dispose of oil properly.
• Replace drain plug (3) and fill in fresh oil
“BECHEM Staroil No. 32”, or “Hessol Hydrauli -
koil HLP 32”.
• The oil level shall be up to upper mark on oil-
measuring rod (1).
• Replace cover (2). Lower the engine facing.
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