Maintenance
Monthly maintenance is recommended. Lubrication is important to jacks as
they support heavy loads. Any restriction due to dirt, rust, etc, can cause
either slow movement or extremely rapid jerks, damaging the internal
components. The following steps are designed to keep the jack well
lubricated.
1. Lubricate the ram, linkages, saddle and pump mechanism with light oil.
Grease wheel bearings and axles.
2. Visually inspect for cracked welds, bent, loose, missing parts or hydraulic
leaks.
3. If the jack is subjected to an abnormal load or shock, remove from
service and have it examined by an authorized repair technician prior to
use.
4. Clean all surfaces and maintain all labels and warnings.
5. Check and maintain the ram oil level.
6. Check ram every 3 months for any sign of rust or corrosion. Clean as
needed and wipe with an oil cloth. When not in use, always leave the
saddle and ram all the way down.
Always store the jack in a fully lowered position. This will help protect
critical areas from excessive corrosion.
Do not use brake or transmission fluids or regular motor oil as they can
damage the seals. Always purchase and use products labeled hydraulic jack
oil.
Check oil level
1. Turn release valve counterclockwise to allow ram to fully retract. It may
be necessary to apply force to the saddle for lowering.
2. With the jack in a level position, remove the oil fill plug. The oil should
be level with the bottom of fill hole. If not, top off. Do not overfill.
Always fill with new, clean hydraulic jack oil.
3. Replace fill plug.
4. Check jack operation.
5. Purge air from system as required.
