Product Manual

TROUBLESHOOTING
5
MAINTENANCE
Important: Use only a 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 failure of the jack and the potential for
sudden and immediate loss of load. We recommend Hein-Werner hydraulic jack oil HW 93291 or equivalent.
Adding oil
1. Lower saddle fully.
2. Set jack in its upright, level position.
3. Locate and remove air vent screw.
4. Fill with oil until ~3/16" above the inner cylinder as seen from the air vent screw hole.
5. Reinstall the air vent screw.
Changing oil
For best performance and longest life, replace the complete hydraulic fluid at least once a year.
1. Lower saddle fully.
2. Remove the air vent screw.
3. Lay the jack on its side and drain the fluid into a suitable container.
Note: Dispose of hydraulic fluid in accordance with local regulations.
4. Fill with oil until ~3/16" above the inner cylinder as seen from the air vent screw hole.
5. Reinstall the air vent screw.
Lubrication
A periodic coating of light lubricating oil to pivot points, axles and hinges will help to prevent rust and assure that wheels,
castors 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
Lower the saddle to its lowest position when not in use.
REPLACEMENT PARTS (refer to page 6 thru 19)
Not all components of the jack are replacement items, but are illustrated as a convenient reference of location and
position in the assembly sequence. When ordering parts, give model number, part number and parts description.
Call or write for current pricing: Hein-Werner Customer Support, 10939 N. Pomona Ave. Kansas City, MO 64153.
Phone: [phone]; E-mail: [e-mail]
Symptom Possible Causes Corrective Action
Jack will not lift load
• Release knob not tightly closed
• Overload condition
• Ensure release knob tightly closed
• Remedy overload condition
Jack bleeds off after lift • Hydraulic unit malfunction • Discontinue use, contact Hein-
Werner 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
Will not lift to full extension • Fluid level low • Ensure proper fluid level