KIROVETS K-744R1, K-744R2, K-744R3, K-744R4 tractors
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7.5 Contents and procedure of maintenance operations
7.5.1 Change of oil in the engine
Install the tractor on a horizontal ground. In order to achieve better results, change oil in
the
engine being heated.
1. In order to drain oil, undo the drain plug on the oil tray of the engine and take off the lid
of oil filler port having preliminarily cleaned it from dust and dirt.
On K-744R1St tractors (with
ЯМЗ-238НД5 engine), further undo the plug on the upper
header of the engine oil radiator for oil drainage from the radiator to the oil tray.
After full drainage, screw in the plugs.
2. Before filling oil clean the oil filler port from dust and dirt. Fill oil into the engine through
the oil filler port. Check tightening of the drain plug of the oil tray.
Monitor the oil level according to oil probe.
3. In order to fill oil into the engine lubrication system, run the engine for 2...3 minutes and
10...15 minutes after the stop refill oil.
7.5.2 Adjustment of cylinder valves on 8481 engine
Installation and dismantling of the plastic arch on the tractor for adjustment of the
cylinder valves on 8481 engine (TMZ, OJSC)
Right-hand row of cylinders
Left-hand row of cylinders
Tools for the execution of work:
1. A set of ratchet wrenches
– 1 set.
2. Combined wrench with the open-end part for (10
–24) mm.
3. White marker for metal (to mark out bracket and fasteners contours).
4. Old cloth or any other material for binding the arch in order to avoid damage of the paint-
and-varnish coating.
TRACTOR MOTION DIRECTION
