External Leakage
Root Causes:
Seal degradation (thermal or chemical)
Rod surface damage (pitting/scratches)
Corrective Actions:
Replace seal kit (9U-6895)
HVOF recoating if rod damage >0.05mm deep
Slow Response
Diagnostic Procedure:
Check pump pressure (>240 bar at lift)
Test control valve function
Verify fluid viscosity (46 cSt @ 40°C)
Solutions:
Pump repair/replacement
Valve rebuild
Fluid replacement if contaminated
This 606-7150 lift cylinder is used for D6R D6T dozer.
TRACK-TYPE TRACTOR
D6T D6GC
621-7748
4J-6374
621-7756
619-8700
611-5879
4J-0121
8E-9212
611-5917
101-0007
8T-0362
6V-7742
8E-5703
