Preventative Maintenance; Troubleshooting - MAC TOOLS JSTT1000 Owner's Manual

PREVENTATIVE MAINTENANCE

WARNING
Failure to follow these Preventative Maintenance instructions may result in serious injury or death, and/or property damage.
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, grit, oil, grease or other foreign matter before using.
2. Lubricate moving parts, excluding the telescopic rams, monthly with a general purpose grease.
IMPORTANT: Any jack found to be defective as a result of worn parts due to insufficient or lack of lubrication 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 qualified hydraulic repair personnel who are familiar with this equipment.
In order to prevent seal damage and jack failure, never use alcohol, hydraulic brake fluid or transmission oil in the jack.
WARNING
Use Chevron Hydraulic Oil ISO 32 or its equivalent Unocal Unax AW150, or hydraulic jack oil.
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.
5. 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. Handle tends to raise up while the unit is under rated load.
5. Unit still does not operate.
JSTT1000
1000-LBS.
TRANSMISSION JACK - 2 STAGE
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.
Contact your Mac Tools Distributor.
4
JSTT1000
CAPACITY
6/3/15