Tennant ATLV 4300 Service Manual page 158

Model 70160
Fault - Logic Troubleshooting
Symptom: System Will Not Operate In Either Direction
Check
Oil Level in
Reservoir
4
Below Level
Fill to
Proper
Level
OK
Replace
Pump &
Motor
Check External
OK
Control
Linkage
1
Defective
Repair
or
Replace
Inspect
Charge
Pump 13
Defective
Repair
or
Replace
Inspect
OK
Motor
12
Defective
Repair
or
Replace
Inspect Pump
OK
Bypass Valve
(If used)
7
Defective
Repair
or
Replace
Inspect
OK
Inlet Screen
or Filter
Clogged
Replace
Inspect
OK
Servo Control
(If used)
Defective
Repair
or
Replace
16
Check
OK
Charge
Pressure
10
Low
Inspect
OK
Charge Relief
Valve
8
Defective
Repair
or
Replace
Check
OK
System
Pressure
2
High
Reduce
System
Load
OK
11
9