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MAINTENANCE
Important: Use only good grade hydraulic jack oil. Avoid mixing different types of uid and NEVER use brake uid,
turbine oil, transmission uid, motor oil or glycerin. Improper uid can cause premature failure of the jack and the
potential for sudden and immediate loss of load. We recommend Mobil DTE 13M or equivalent.
Adding oil
1. With saddle fully lowered set jack in its upright, level position. Remove oil ller plug.
2. *Proper oil level will vary from just covering the inner cylinder to ~3/16” above the inner cylinder as seen from
the oil ller plug hole. Reinstall the oil ller plug.
*NOTICE: If the oil level is too low, the jack will not raise to its advertised maximum height. DO NOT overll the
reservoir. An overlled reservoir can cause a wide variety of performance problems and create an oily mess on the
shop oor! See the troubleshooting guide below.
Changing oil
For best performance and longest life, replace the complete uid supply at least once per year.
1. With saddle fully lowered, remove the oil ller plug.
2. Lay the jack on its side and drain the uid into a suitable container.
Note. Dispose of hydraulic uid in accordance with local regulations.
3. *Fill with oil until ~3/16" above the inner cylinder as seen from the oil ller hole. Reinstall oil ller plug.
Lubrication
A periodic coating of light lubricating oil to pivot points, axles and hinges will help to prevent rust and assure that
wheels, casters and pump assemblies move freely.
Cleaning
Periodically check the pump piston and ram for signs of rust or corrosion. Clean as needed and wipe with an oily
cloth. Note: Never use sandpaper or abrasive material on these surfaces!
Storage
When not in use, store the jack with saddle fully lowered.
TROUBLESHOOTING
Symptom Possible Causes Corrective Action
Jack will not lift load
• Release valve not tightly closed
• Load is too heavy
• Ensure release valve tightly closed
• Consider higher capacity jack
Jack will lift, but not maintain
pressure
• Release valve not tightly closed
• Hydraulic unit malfunction
• Ensure release valve tightly closed
• Discontinue use, contact Atd Tools
technical service
Jack will not lower after unloading • Reservoir overlled
• Linkages binding
• Drain uid to proper level
• Clean and lubricate moving parts
Poor lift performance • Fluid level low
• Air trapped in system
• Ensure proper uid level
• With ram fully retracted, remove
oil ller plug to let pressurized air
escape. Reinstall oil ller plug
Will not lift to full extension • Fluid level low • Ensure proper uid level
