Sunex Tools 7793B Manuel D'opération page 5

PREVENTATIVE MAINTENANCE
This is the safety alert symbol used for the PREVENTATIVE MAINTENANCE section of this manual to alert you to potential personal
injury hazards. Obey all instructions to avoid possible injury or death.
1. Always store the transmission 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. Lubricate moving parts, excluding the telescopic rams, monthly with a general purpose grease. Periodic lubrication should be
subject to a maintenance schedule based on frequency of use. A weekly lubrication inspection is suggested. Premature wearing
of components due to lack of or inadequate lubrication is not eligible for warranty consideration.
3. 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. Premature wearing or damage to components caused by loose or missing hardware is not
eligible for warranty consideration.
4. 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 qualified hydraulic repair personnel who are
familiar with this equipment.
IMPORTANT: In order to prevent seal damage and jack failure, never use alcohol, hydraulic brake fluid or transmission oil in the jack. Use
Chevron Hydraulic Oil AW 150 32, Unocal Unax AW150, or hydraulic jack oil. Any jack found to be defective as a result of foreign
contaminants in the hydraulic system is not eligible for warranty consideration.
5. 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. Contact Sunex for a replacement label if your jack's label is not readable.
6. Do not attempt to make any hydraulic repairs unless you are a qualified hydraulic repair person that is familiar with this equipment.
Repairs must be performed by an authorized service center.
TROUBLESHOOTING
PROBLEM
1. Unit will not lift rated load.
2. Unit will not sustain rated load or feels "spongy"
under rated load.
3. Unit will not lift to full height.
4. Unit still does not operate.
7793B Rev. E
ACTION
Purge air from hydraulic system by following procedure under
"Important before using"
Purge air from hydraulic system as above.
Purge air from hydraulic system as above.
Contact Sunex authorized hydraulic service center.
5 rev. 1/17/17