Thomas 85 - Page 63

2-7
2
TROUBLE SHOOTING 2.4
Symptom: System Will Not Operate In Either Direction
Repair or
replace
Fill to proper
level
Replace
Repair or
replace
Reduce sys-
tem load
Repair or
replace
Increase; G-pump
defective
Defective
Low Clogged
Defective
High
Low
Defective
OK
OK
OK
OK
OK
OK
Inspect inlet
screen or filter
Inspect motor
Check sys-
tem pressure
Replace pump
and motor
Inspect charge
relief valve
Check system
pressure
Check charge
pressure
Check external
control linkage
Check oil level
in reservoir
Below level
OK
OK