Operating Instructions

• Position jack under vehicle or other object to be lifted. Always be sure lift pad or lift point is centered
• Front wheels and casters of floor jacks must be free of obstructions so the jack can travel under load. Otherwise the lifting pad is liable to slip off or put undue strain on point being lifted. Vehicle must be out of gear and brake released when lifting.
• To lift - turn handle or release knob clockwise and pump. If jack is air-bound, open release by turning handle or knob counter-clockwise, hold open and pump rapidly about 4 full strokes. Then close release and pump jack to full height without load. Open release and lower jack. THIS STEP MAY HAVE TO BE REPEATED SEVERAL TIMES TO BLEED ALL THE AIR FROM JACK

LUBRICATION

• Oil front wheels, caster bearings, all linkages and moving parts periodically
• Grease lift arm at grease fitting (if so equipped) and lower end of handle at yoke casting

IMPORTANT

USE JACK FOR LIFTING ONLY. TO INSURE SAFETY, ALWAYS SUPPORT VEHICLE OR LOAD WITH STANDS OR OTHER SUITABLE DEVICES SUCH AS TIMBERS, ETC.

Parts List & Operating Instructions

Preventive Maintenance

IMPORTANT: The greatest single cause of failure in hydraulic units is dirt. Keep your jack clean and well lubricated to prevent foreign matter from entering the system. If the jack has been exposed to rain, snow, sand, or grit, it must be cleaned before putting away.

1. Store the jack in a well-protected area where it will not be exposed to corrosive vapors, abrasive dust, or any other harmful elements.
2. Lubricate moving parts at least once per month.
3. Regularly wipe the cylinder columns with a clean cloth to remove dirt and abrasives.
4. Inspect the jack before each use.

   Take corrective action if any of the following problems are found:

   1. Cracked or damaged housing
   2. Excessive wear, bending, or other damage
   3. Leaking hydraulic fluid
   4. Scored or damaged piston rod
   5. Loose hardware
   6. Modified or altered equipment

WE CAME ACROSS A WEB SITE THAT CONTAINS VALUABLE INFORMATION ON HOW TO REPAIR HYDRAULIC JACKS. WE INVITE YOU TO VISIT OTTO SERVICE'S WEB SITE AT: WWW.HYJACKS.COM/H7.HTM.