HYDROSTATIC TRANSMISSIONS:
OPERATION AND TROUBLESHOOTING
Operation Theory
Drive Requirements
Open and Closed Loop
Integral Pump/Motor Units
Separated Pump/Motor Combinations
Capabilities
Charge Circuit
Cooling Circuit
Protecting the System
System Control
System Operation: Complete Charge, Cooling, Control and Drive Circuit Explained and Traced
Forward
Neutral
Reverse
Hydrostatic Transmission Troubleshooting
(Eaton, Sundstrand, Denison, Vickers and others)
System Operates Hot
One Direction Operation Only
Sluggish Response
Low Charge Pressure
High Case Pressure
Pump Rotating Group Failure Analysis
Motor Rotating Group Failure Analysis