Komatsu Utility PC12R-8 MISTRAL, Руководство по ремонту

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Normal or standard technical data ................... 2
Special tools........................................... 23
Checking the engine speed .......................... 25
Adjustment of valve clearance ....................... 26
Measurement of the compression pressure ........ 27
Control and adjustment of the tension of
the fan belt ............................................ 28
Control and adjustment of the injection timing ..... 29
Control and adjustment of the accelerator stroke.. 31
Adjustment of the stroke of the blade
command lever ........................................ 32
Control and adjustment of the stroke of
the travel lever ........................................ 33
Centering adjustment of the boom swing
command pedal ....................................... 34
Adjustment of the rubber pad and safety
microswitch for servo-control engagement ......... 35
Control and adjustment of the track-shoe tension . 36
Control and regulation of pressure in the
hydraulic circuits (PC12R-8).......................... 37
Control and regulation of the pressures in the
hydraulic circuits (PC15R-8).......................... 40
Control and regulation of the LS differential
pressure and adjustment of the LS valve ........... 43
Regulation of the PC valve ........................... 45
Control and regulation of the servo-control
power supply (PC12R-8) .............................. 46
Control and regulation of the servo-control
power supply (PC15R-8) .............................. 47
Elimination of residual pressures - pressurisation
of the tank ............................................. 48
Bleeding air from the hydraulic circuits ............. 49
Control of hydraulic drifts - analysis of
the causes of a drift................................... 51
Checking for any leakages inside the
working equipment cylinders ......................... 57
Checking for any leakages inside the
swing motor............................................ 58
Methods for testing for leakages inside the
swivel joint ............................................. 59
TESTING AND ADJUSTMENTS
20-1
When carrying out controls, adjustments or analyses for troubleshooting, park the machine on firm, level
ground. Apply all the machine safety devices and use blocks to prevent any machine movement.
When more than one person is engaged in the work, use the prescribed notices that indicate that the machine
is undergoing maintenance. Do not allow any unauthorised persons to remain in the vicinity.
When checking the level of the cooling liquid, wait until this liquid has cooled. If the radiator cap is removed
while the liquid is still hot and under pressure, it may cause severe burns.
Take great care not to get entangled in moving parts (fan, alternator belt or any of the rotating elements).
PC12R-8 PC15R-8