41
EATON 350 Series Dual Path Mobile Pumps E-PUPI-TS006-E September 2007
Troubleshooting
Fault - Logic Troubleshooting
Repair
or
Replace
Repair
or
Replace
Inspect
System
Relief Valves
Repair
or
Replace
Defective
Ok Ok
Defective Defective
321
Symptom: Operates in One Direction Only
Inspect
External
Control LinkageInspect
Control Valve Ok Replace
Pump
Inspect
Control
Valve
Inspect
Bypass Valve
(If used)
Repair
or
Replace
Defective
Ok
Ok Ok
8211
Symptom: System Response Sluggish
Check
Charge
Pressure
Low
Defective
Repair
or
Replace
Inspect
Motor
Ok
13
Inspect
Servo
Piston
4
Ok
Replace
Pump & Motor
Repair
or
Replace
Defective
Repair
or
Replace
Defective
Inspect
Inlet
Screen or Filter
Inspect
Charge
Pump
Repair
or
Replace
Defective
Ok
Ok Ok
41921
Inspect
Charge Relief
Valve
Clogged
Replace
Defective
Repair
or
Replace