791-7170
4
rev. 03/04/16
PREVENTATIVE MAINTENANCE (CONT.)
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 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
NAPA hydraulic Jack Oil #765-1541.
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. Contact NAPA for a replacement label if your jack's label is unreadable.
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. 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
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. Handle tends to raise up while the unit is under rated
load.
Pump the handle rapidly several times to push oil past ball
valves in power unit.
5. Unit still does not operate.
For a complete list of authorized hydraulic repair centers
please visit www.toolwarrantyrepair.com.
WARRANTY
Please contact your local NAPA Auto Parts Store for details on warranty.
OPERATING MANUAL & PARTS LIST FOR 791-7170
