Maintenance; Troubleshooting; Warranty - Napa 791-2300 B Operating Manual & Parts List

OPERATING MANUAL & PARTS LIST FOR 791-2300 B, 791-2320 B
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.
IMPORTANT: The number one cause of jack failure in air/hydraulic jacks is dirt and moisture in the air motor and/or hydraulic system.
The shop air supply should be equipped with water and dirt filter traps that should be emptied or cleaned according to a monthly
maintenance schedule. An in line oil lubricator will extend the life of air/hydraulic jacks. Inoperable jacks caused by poorly equipped or
maintained shop air systems are not eligible for warranty consideration. Contaminants can also enter the air/hydraulic system when
the shop air line is disconnected from the jack air line and the line is dropped on the floor. Contaminants in the air couplers, once reconnected,
will be driven into the system.
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 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.
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. Authorized Service Centers are recommended. 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 label clean and readable. Use a mild soap solution to wash external surfaces of the
jack but not any moving hydraulic components.
5. Do not attempt to make any hydraulic repairs unless you are a qualified hydraulic repair person that is familiar with this equipment.

MAINTENANCE

Important: Use only a good grade hydraulic jack oil. Avoid mixing different types of fluid and NEVER use brake fluid, turbine oil,
transmission fluid, motor oil or glycerin. Improper fluid can cause premature failure of the jack and the potential for sudden and immediate
loss of load.
Adding Oil: With saddle fully lowered and pump position fully depressed, set jack in its upright, level position. Remove oil filler plug. Fill until
oil is level with the filler plug hole, re-install oil filler plug.
OWNER/USER RESPONSIBILITY
The owner and/or user must have a thorough un der stand ing of the man u fac tur er's operating in struc tions and warn ings be fore using this
bottle jack. Personnel involved in the use and op er a tion of equip ment shall be care ful, com pe tent, trained, and qual i fied in the safe op er ation
of the equip ment and its proper use when servicing motor vehicles and their com po nents. Warning in for ma tion should be em pha sized and
un der stood. If the operator is not fluent in English, the man u fac tur er's in struc tions and warn ings shall be read to and dis cussed with the
operator in the op er a tor's native lan guage by the pur chas er/own er, making sure that the op er a tor com pre hends its con tents.
Owner and/or user must study and main tain for future ref er ence the man u fac tur er's instructions. Owner and/or user is re spon si ble for
keeping all warning labels and instruction manuals legible and intact.

TROUBLESHOOTING

SYMPTON
Jack will not lift rated load
Jack bleeds off after lift
Jack will not lower after unloading
Poor lift performance
Will not lift to full extension

WARRANTY

Please contact your local NAPA Auto Parts Store for details on warranty.
791-2300 B, 791-2320 B
POSSIBLE CAUSES
Release valve not tightly closed
Overload condition
Air supply inadequate
Release valve not tightly closed
Overload condition
Hydraulic unit malfunction
Reservoir overfilled
Fluid level low
Air trapped in system
Fluid level low
CORRECTIVE ACTION
Ensure release valve tightly closed
Remedy overload condition
Ensure adequate air supply
Ensure release valve tightly closed
Remedy overload condition
Contact Seller
Drain fluid to proper level
Ensure proper fluid level
Follow purging instructions under assembly
instructions on page 3
Ensure proper fluid level
4 rev. 03/12/18