4
MAINTENANCE
Important: Use only good grade hydraulic jack oil. Avoid mixing different types of fluid and NEVER use brake fluid,
turbine oil, transmission fluid, motor oil or glycerin. Improper fluid 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 filler plug.
2. Fill with oil until ~3/16" above the inner cylinder as seen from the oil filler hole. Reinstall the oil filler plug.
Changing oil
For best performance and longest life, replace the complete fluid supply at least once per year.
1. With saddle fully lowered, remove the oil filler plug.
2. Lay the jack on its side and drain the fluid into a suitable container.
Note. Dispose of hydraulic fluid in accordance with local regulations.
3. Fill with oil until ~3/16" above the inner cylinder as seen from the oil filler hole. Reinstall oil filler 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 a 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 overfilled
• Linkages binding
• Fluid level low
• Drain fluid to proper level
• Clean and lubricate moving parts
• Ensure proper fluid level
Poor lift performance • Fluid level low
• Air trapped in system
• Ensure proper fluid level
• With ram fully retracted, remove
oil filler plug to let pressurized air
escape. Reinstall oil filler plug
Will not lift to full extension • Fluid level low • Ensure proper fluid level
