MTZ K-744R1, Operating Instruction

Page: 120 / 202

KIROVETS K-744R1, K-744R2, K-744R3, K-744R4 tractors
120
Job content
M-1 (125
engine
hours)
M-2 (500
engine
hours)
M-3 (1000
engine
hours)
Note
frame vertical hinge;
– mounting bolts of intermediate
bearing holders
 
see Appendix 4
– spring earand spring clip plate
nuts
 
Check how does the engine work by
ear and by monitoring instruments
 
Check the operation of tractor
control mechanisms, operation of
brakes, window wipers, lighting and
signaling, hydraulic systems of
mounted implements and steering
control
 
Upon shutdown of the engine,
immediately check the operation of
turbocompressor and engine
centrifugal oil filter by ear
 
Check the tightness of the air
supply line from the air cleaner to
the engine

Check the tightness of the clean air
supply line to the engine and dust
removal line from the air cleaner
 
Perform maintenance for engine
nozzles

execute the operation for
ЯМЗ238НД5 engine after the
first 250 engine hours
Drain condensate from the engine
supercharge air cooler (SAC)

only for tractor with Mercedes
engines
Check the operation of all tractor’s
mechanical parts under no-live load
and under load state 
perform operation during the
tractor being in service
Check the ease of rotation of the
turbocompressor rotor and, if
necessary, perform its maintenance

ATTENTION! In case of tractor operation in the climatic conditions requiring no
seasonal maintenance (M-SS, M-AW), perform oil change in the gearbox hydraulic
system once in every 1,000 engine hours.
Seasonal maintenance
– spring-summer (M-SS) and autumn-winter (M-AW)
Job content M-SS M-AW Note
Bring the density of electrolyte in the storage
batteries to the summer standard value

Check the operation of the pneumatic
system of service brakes
 
Replace oil of winter grades with summer
grades according to the lubrication table:
– in engine lubrication system

– in transmission gearbox hydraulic system

– in the hydraulic system tank for mounted
implements and steering control 
execute the operation once in
every 2,000 engine hours
– in main and final drive cases of the drive

execute the operation once in