CD Industrial Group Inc.

Simulations & Hands-On Learning Challenges
Level II
2 Day
Instructor-Led Course

Hydraulics for Slickline & Wireline Units

Learn to:

  • Interpret wireline unit schematics.
  • Think and act in a logical way when the system goes down.
  • Conduct basic system tests.
  • Analyze wireline winch hydrostatic drives.
  • Follow correct system maintenance and setup procedures.

Strengthen your troubleshooting with a hands-on session on winch control and hydrostatic hydraulics.

This course is designed to be the first step in rigorous hydraulics training for wireline unit operators and maintenance personnel. Participants come away from this highly concentrated course with a solid understanding of hydraulic principles, and component design and functions. System analysis and troubleshooting skills are taught using the circuits and Live Schematics on a slickline/wireline unit.

The Ten Step Troubleshooting Process is taught with the goal of eliminating the hit or 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, wireline unit schematics, and through instructor guided hands-on study of individual hydraulic components.

Day One: Operators & Mechanics

Wireline Winch Circuit

Objective: Explain the winch circuit and its functions

Activity: Solve pressure and flow problems using simulations

Learn to control the hydrostatic loop expertly

Generator Circuit

Objective: Explain generator circuit functions

Activity: Associate common malfunctions with their root cause

Demystify the load sense - RPM regulating function

Auxiliary Functions

Objective: Explain auxiliary circuit functions

Activity: Solve directional valve and cylinder problems using simulations

Find out how to make basic diagnostic checks


Objective: List common hydraulic hazards and safe procedures

Think before you act - even a few hundred PSI (or less) can injure or kill!

Preventative Maintenance

Objective: Describe preventative maintenance procedures

Activity: Identify maintenance tasks and frequencies for coiled tubing circuits

Avoid "run-to-failure" with good maintenance and planning

Day Two: Mechanics

Theory and Design

Objective:Explain the principals of hydraulics that affect troubleshooting

Activity: Predict fluid behaviour in various systems

Map out flow paths for faster troubleshooting

Hydraulic Pumps

Objective: Compare and explain the principles of various hydraulic pumps

Activity: Internal damage inspection and analysis of hydraulic fluid selections

Charge pressure, cross-port relieving, stroke mechanisms and more


Objective: List procedures to diagnose common problems in actuators.

Activity: Motor and cylinder fault diagnosis

Poclain, Sauer Danfoss, Linde motors - porting, controls, and more


Objective: Identify valve designs and diagnose common problems

Activity: Valve disassembly, inspection and reassembly

Diagnose valve problems accurately Is it mechanical or electrical?

System Troubleshooting

Objective: List the steps in logical troubleshooting

Activity: Slickline and wireline circuit troubleshooting simulation exercises

Troubleshoot methodically with the Ten Step Troubleshooting Process

Where does this class fit in?

Hydraulics for Slickline and Wireline Units is a specialty class, along with Hydraulics for Coiled Tubing, and Fundamentals of Crane Hydraulics. If you enjoyed this class, consider taking your mobile hydraulic education father, with our general hydraulics course, How to Maintain & Troubleshoot Hydraulic Systems

Want to book this course? Get in touch: