Checking For Any Leakages Inside The Working; Equipment Cylinders; Checking For Any Leakages Inside - Komatsu PC20R-8 Shop Manual

TESTING AND ADJUSTMENTS

CHECKING FOR ANY LEAKAGES INSIDE THE WORKING

EQUIPMENT CYLINDERS

H Test conditions:
Engine: at working temperature.
.
Hydraulic oil: 45 ± 55 ëC.
.
1 - Fully extend the rod of the cylinder to be checked and
stop the engine.
2 - Disconnect the tube from the head side of the cylin-
der and bind it to the structure.
Take great care not to disconnect the tube on
the base side of the cylinder.
3 - Start the engine, bring it up to high idling and bring
the base side of the cylinder up to maximum pressure.
4 - After 30 seconds, wait for a full minute to collect any
leakages from the free tube.
20-60

CHECKING FOR ANY LEAKAGES INSIDE

THE WORKING EQUIPMENT CYLINDERS
POSITION FOR THE BOOM TEST
POSITION FOR THE ARM AND BUCKET TEST
TUBE HEAD
SIDE
MAXIMUM
PRESSURE
RKP04720
RKP04710
DELIVERY
BOTTOM SIDE
RKP04751
PC20R-8 PC27R-8