Hydrostatic Drive Troubleshooting Boot Camp
Troubleshooting Boot Camp
Does your hydrostatic drive function erratically or make unusual noises? Are there more than handful of hoses and adjustments at the main pump that you'd like to know more about?
This course will help anyone who maintains, repairs, or manages a fleet of, hydrostatic drive machines. Hydrostatic drives are characterized by their ability to control a hydraulic motor with infinitely adjustable speeds in both forward and reverse. They can be found on machines such as skid-steer loaders right up to full size crawler/dozers. Hydrostatic drives are also used for oilfield service rigs, and in stationary plants for the manufacturing of food and paper.
All hydrostatic drives share common problems such as temperature control, pre-charging, and over-pressure protection. All drives require correct maintenance for long life and decisive action at the first sign of trouble.
Participants come away from this highly concentrated troubleshooting course with a solid understanding of hydrostatic drive principles, critical components and adjustments, as well hydraulic and electric pump displacement piloting. System analysis and troubleshooting skills are taught using the circuits and animated schematics from a variety of machines.
The Ten Step Troubleshooting Process is taught with the goal of eliminating the “hit-and-miss” methods that can be so costly in terms of time and materials. Safety is stressed along with sound maintenance practices. This two-day course is taught with circuit simulation software, machine schematics and on-screen simulations, and through instructor guided hands-on study of individual hydraulic components.
Learn How To:
- Explain hydrostatic circuit principles
- Analyze hydrostatic circuit schematics
- Adjust hydrostatic pump compensators, cross-port reliefs, charge pressure
- Analyze common pilot/stroke control functions
- Troubleshoot common hydrostatic loop problems
- Work safely around hydrostatic machines
Hydrostatic Drive Principles
Objective: Explain the principles of hydraulics in closed loop systems
Activity: Predict fluid behaviour in various systems
Hydrostatic System Designs
Objective: Analyze circuit components and their relationships
Activity: Interpret symbols and component connections on typical systems
Hydrostatic Drive Pumps
Objective: Explain the features of common hydrostatic pumps
Activity: Interpret catalogue data to determine port functions and pump features
Pump Displacement Control/Piloting
Objective: Analyze common pump displacement/stroke controls
Activity: Design a basic test for stroke controls
Objective: List procedures to diagnose common problems in hydrostatic motors
Activity: Analyze damaged motor components
Bleed and Flushing Circuits
Objective: Analyze common bleed-off and case flushing circuits
Activity: Assemble/adjust hot oil shuttle and relief cartridges
Auxiliary Use Of Charge Pump Circuit
Objective: Identify common external uses for the charge pump circuit
Activity: Diagnose problems caused by excessive flow away from charge pump circuit
Objective: List common hydraulic hazards and safe procedures
Activity: Determine procedures for safe work on hydraulic systems
Objective: Describe preventative maintenance procedures for hydrostatic systems
Activity: Write a P.M. routine for your system
Objective: List common faults and remedies in hydrostatic circuits
Activity: Diagnose faults on simulated systems and list the causes
Where to go from here?
Hydrostatic Drive Troubleshooting Boot Camp is part of a general hydraulics training plan. Other courses at the same level include Advanced Hydraulics Troubleshooting & Motion Control, and Advanced Mobile with Load Sense.