Napa PROFESSIONAL LIFTING EQUIPMENT 791-6620 C Manuel De Fonctionnement page 4

PREVENTATIVE MAINTENANCE (CONT.)
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 or grit 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 all zerk grease fittings, caster wheels, front axle wheels, elevator arm, handle base pivot bolts, release mechanism and
all other bearing surfaces.
IMPORTANT: Any jack found to be defective as a result of worn parts due to lack of lubrication or air/hydraulic system contaminated
with water, rust and/or foreign materials from the air supply or other outside source is 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.
IMPORTANT: In order to prevent seal damage and jack failure, never use alcohol, hydraulic brake fluid or transmission oil in the jack.
4. Every jack owner is responsible for keeping the jack labels clean and readable. Use a mild soap solution to wash external sur
faces 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.
TROUBLESHOOTING
PROBLEM
1 . Unit will not lift load .
2 . Unit will not sustain load or feels "spongy" under load .
3 . Unit will not lift to full height .
4 . Handle tends to raise up while the unit is under load .
5 . Unit still does not operate .
WARRANTY
Please contact your local NAPA Auto Parts Store for details on warranty.
791-6620 C
OPERATING MANUAL & PARTS LIST FOR 791-6620 C
ACTION
Purge air from hydraulic system by following procedure under SETUP .
Purge air from hydraulic system as above .
Purge air from hydraulic system as above .
Pump the handle rapidly several times to push oil past ball valves in
power unit .
For a complete list of authorized hydraulic repair centers,
please visit www.toolwarrantyrepair.com
4 rev. 03/28/12