
Air Bleeding Instructions for Air / Manual Service Jacks
HEIN-WERNER Models HW9 662 (10 Ton) & HW9 667 (4 Ton)
Hein-Werner Automotive
10939 N. Pomona Avenue, Kansas City, Missouri 64153, USA
Te ephone: (816) 891-6390, To Free (888) 332-6419
heinwerner-automotive.com
Problem: LIFT ARM wi not rise when air pressure is app ied.
Resolution: Fo ow the Air B eeding Procedure in this document.
Models: HW93662 (10 Ton) & HW93667 (4 Ton) Air / Manua Service Jacks.
Tools Required: Hex Wrench for AIR MOTOR VENT PLUG, Open End Wrench, Combination
Wrench, or Socket Wrench for AIR VENT SCREW. Air Compressor, or other Compressed Air
Source [suggested 110 psi (7,6 bar) minimum air pressure].
Procedure:
WARNING!
• Read and understand all information contained in Operating Instruction Manual
(supplied with the equipment), and this document before starting this procedure.
• NO LOAD should be placed on this equipment during this procedure.
• Any persons not involved in the work should leave the area.
• Work area should be clean and free of any hazards such as oil spills.
• Only trained, competent adults should perform this procedure.
• Use ONLY approved Hydraulic Jack Oil when adding or replacing oil in a
hydraulic jack.
• NEVER use brake fluid, turbine oil, transmission fluid, motor oil or glycerin in a
Hydraulic Jack. Improper fluid can cause failure of the jack and the potential for
sudden and immediate loss of load.
Step 1:
• Read and understand a information
contained in the Operating Instruction
Manual for this piece of equipment.
Nomenc ature used in this document
refers to items discussed in the
Operating Instruction Manual.
• Read and understand a information
contained in this document before
starting this procedure.
• P ace the unit in the work area such
that a sides are easi y accessib e, and
such that LIFT ARM can rise to its
maximum height with no obstruction.