Fault - Logic Troubleshooting - Tennant ATLV 4300 Service Manual

Model 70160

Fault - Logic Troubleshooting

This fault - logic troubleshooting guide is a
diagnostic aid in locating transmission problems.
Match the transmission symptoms with the problem
statements and follow the action steps shown in the
box diagrams. This will provide help in correcting
minor problems eliminating unnecessary machine
down time.
Following the fault - logic diagrams are diagram
action comments of the action steps shown in the
diagrams. Where applicable, the comment number of
the statement appears in the action block of the
diagrams.
Recommended Gauge Locations
Drain Port
Tee In Line to Check
Case Pressure
Gauges Recommended
Inlet vacuum gauge: 2 bar to 1 bar [30 PSI to 30 inHg]
System pressure gauge: 700 bar [10,000 PSI]
Charge pressure gauge: 0 to 50 bar [0 to 600 PSI]
Case pressure gauge: 0 to 25 bar [0 to 300 PSI]
Bypass Valve
Location
Figure 58
13
Explanatory
Diagram
Symptom:
Comment
Inspect
Number
?
1
Decision
Defective
Repair
Solution
or
Replace
Auxiliary Port
Check Charge Pressure
Charge Pump Suction Port
Tee In Line to Check Inlet
Vacuum
Pressure Ports
Tee In Line to Check
System Pressure
Action
Step