Testing Clutch Control Pressure - Komatsu WA250-6 Shop Manual

120 Testing and adjusting, Part 2

Testing clutch control pressure

Testing clutch control pressure

Necessary tools
Symbol Part No.
799-101-5002
1
790-261-1204
M
799-401-3100
2
02896-11008
k
When removing the measurement plug and
disconnecting the hose, loosen the oil filler
cap slowly to release the pressure inside
the hydraulic tank.
1. Remove the rear frame left side cover (1).
2. Disconnect clutch solenoid valve output pres-
sure (clutch inlet pressure) hose (2), then con-
nect hydraulic tester M1 (6 MPa {60 kg/cm
and adapter M2 (Hose size: For # 02).
WA250, 250PZ-6
Part Name
Analog type hydraulic tester
Digital type hydraulic tester
Adapter
O-ring
1
3. Set the speed selector switch to 3rd or 4th,
travel at a speed of at least 10 km/h, and mea-
sure the clutch inlet pressure (clutch solenoid
valve output pressure).
4. After finishing the work, remove the measuring
instruments and return the removed parts.
})
2
SEN03837-01
9
30-120