Test 012: Testing Track Motor Relief Valve Settings - jcb JS300 Service Manual

Test 012: Testing Track Motor Relief Valve Settings

B
1 Fit pressure gauges 0 - 600 bar (8700 lb in
ports B.
2 Warm up hydraulic system to 50 °C (122°F).
3 Disconnect the travel pressure switch on the main
control valve.
OR
Select and stall left hand track motor forward
Select and stall left hand track motor reverse
Select and stall right hand track motor forward
Select and stall right hand track motor reverse
E-265
ARV
ARV
2 ) to test
Hydraulic System Fault Finding
Test 012: Testing Track Motor Relief Valve Settings
Fig 14.
4 Temporarily increase the pressure setting of the MRV.
5 Select L mode.
6 Stall the track motor using an old track pin or similar.
K Table 21. ( T E-265)
7
Table 21.
Expected relief valve setting
319 bar (4626.7 lb/in
319 bar (4626.7 lb/in
319 bar (4626.7 lb/in
319 bar (4626.7 lb/in
9813/5100-1
Section E - Hydraulics
JS300
2 )
2 )
2 )
2 )
E-265