CSEBJ20T 4 1/26/2021
PREVENTATIVE MAINTENANCE
Failure to follow these Preventative Maintenance instructions may result in serious injury or death,
and/or property damage .
1. Always store the jack in a well protected area where it will not be exposed to inclement weather, corrosive vapors, abrasive dust, or any
other harmful elements. The jack must be cleaned of water, snow, sand, grit, oil, grease or other foreign matter before using.
2. The jack must be lubricated periodically in order to prevent premature wearing of parts. A general purpose grease must be applied to
the threads on the extension screw. Do not lubricate any portion of the lift saddle and make sure the saddle is free from grease, any
kind of lubricant, or debris before using the jack. Worn parts resulting from inadequate or no lubrication are not eligible for warranty
consideration.
3. It should not be necessary to refill or top off the reservoir with hydraulic fluid unless there is an external leak. An external leak requires
immediate repair which must be performed in a dirt-free environment by an authorized service center.
In order to prevent seal damage and jack failure, never use alcohol, hydraulic brake fluid or transmission oil in
the jack. Use hydraulic jack oil only.
4. Every jack owner is responsible for keeping the jack labels clean and readable. Use a mild soap solution to wash external surfaces of the
jack but not any moving hydraulic components.
5. Inspect the jack before each use. Do not use the jack if any component is cracked, broken, bent, shows sign of damage or leaks
hydraulic fluid. Do not use the jack if it has loose or missing hardware or components, or is modified in any way. Take corrective action
before using the jack again.
6. Any hydraulic repairs within the warranty period must be performed by an authorized service center.
INSPECTION
Failure to follow these Inspection instructions may result in serious injury or death, and/or property damage .
Visual inspection should be made before each use of the jack, checking for leaking hydraulic fluid and damaged, loose or missing parts.
Each jack must be inspected by a manufacturer’s repair facility immediately if subjected to an abnormal load or shock. Any jack which
appears to be damaged in any way, is found to be badly worn, or operates abnormally MUST BE REMOVED FROM SERVICE until necessary
repairs are made by a manufacturer’s authorized repair facility. It is recommended that an annual inspection of the jack be made by a
manufacturer’s authorized repair facility and that any defective parts, decals or warning labels be replaced with manufacturer’s specified
parts. A list of authorized repair facilities is available from the manufacturer.
PROPER STORAGE
It is recommended that the jack be stored in a dry location with all wheels touching the ground on a relatively level surface.
TROUBLESHOOTING
CSEBJ20T
20 Ton Air/Hydraulic
Bottle Jack
PROBLEM
ACTION
1. Unit will not lift rated load.
Purge air from hydraulic system by following procedure under SETUP.
2. Unit will not sustain rated load or feels “spongy” under rated load.
Purge air from hydraulic system as above.
3. Unit will not lift to full height.
Purge air from hydraulic system as above.
4. Unit still does not operate.
Contact Cornwell Customer Service.
WARNING
WARNING
WARNING
