Eaton Electrical 350 - Manual (Page 41)

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
3 2 1
Symptom: Operates in One Direction Only
Inspect
External
Control Linkage
Inspect
Control Valve
Ok
Replace
Pump
Inspect
Control
Valve
Inspect
Bypass Valve
(If used)
Repair
or
Replace
Defective
Ok Ok Ok
8 2 1 1
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
4 1 9 2 1
Inspect
Charge Relief
Valve
Clogged
Replace
Defective
Repair
or
Replace