Product Manual

TROUBLESHOOTING
4
MAINTENANCE
Important: Use only a 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 failure of the jack
and the potential for sudden and immediate loss of load.
We recommend Hein-Werner HW93291 or equivalent
hydraulic jack oil.
Adding Oil
1. With saddle fully lowered, set jack in its upright, level
position. Locate and remove oil ller plug.
2. Fill with oil until ~3/16” above the inner cylinder as seen
from the oil ller hole. Reinstall oil ller plug.
Changing Oil
For best performance and longest lift, replace the
complete uid supply annually.
1. With saddle fully lowered, and pump piston fully
depressed, remove 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. Set jack in its level, upright position and ll 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, castors, and pump assemblies move freely.
Cleaning
Periodically inspect the 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 ram fully retracted.
REPLACEMENT PARTS
(refer to page 6 & 7)
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 valve not tightly closed
• Overload condition
• Ensure release valve tightly closed
• Remedy overload condition
Jack will lift, but not maintain
pressure
• Release valve not tightly closed
• Overload condition
• Hydraulic unit malfunction
• Ensure release valve tightly closed
• Remedy overload condition
• Contact Tech. Service
Jack will not lower after unloading • Reservoir overlled
• Linkage binding
• Ensure load is removed, then 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 saddle fully lowered, remove
oil ller plug to let pressurized air
escape, then reinstall oil ller plug
Jack will not lift to full extension • Fluid level low • Ensure proper uid level