Harbor Freight Tools Central Hydraulics 95553 - Manual (Page 7)

Page 7 For technical questions, please call 1-800-444-3353. Item 69593/69642/95553
SAFET
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Op
ERA
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M
AINTENAN
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E
SETU
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Initial Tool Set Up/Assembly
Read the ENTIRE IMpORTANT SAFETy INFORMATION section at the beginning of this
manual including all text under subheadings therein before set up or use of this product.
Note: For additional information regarding the parts listed in the following pages,
refer to the Assembly Diagram near the end of this manual.
Air Supply
TO pREVENT SERIOUS INJURy FROM EXpLOSION:
Use only clean, dry, regulated, compressed air to power
this tool. Do not use oxygen, carbon dioxide, combustible gases, or any other
bottled gas as a power source for this tool.
1. Incorporate a filter, regulator with pressure
gauge, in-line shutoff valve, and quick coupler
for best service, as shown on Figure B on page
8 and Figure C on page 9. An in-line
shutoff ball valve is an important safety device
because it controls the air supply even if the air
hose is ruptured. The shutoff valve should be a
ball valve because it can be closed quickly.
2. Attach an air hose to the compressor's air outlet.
Connect the air hose to the air inlet of the tool.
Note: Air flow, and therefore tool performance,
can be hindered by undersized air supply components.
The air hose must be long enough to reach
the work area with enough extra length to
allow free movement while working.
3. Turn the tool's throttle or switch to the off position;
refer to Operation section for description of controls.
4. Close the in-line shutoff valve between
the compressor and the tool.
5. Turn on the air compressor according to
the manufacturer's directions and allow it
to build up pressure until it cycles off.
6. Adjust the air compressor's output regulator
so that the air output is enough to properly
power the tool, but the output will not exceed
the tool's maximum air pressure at any time.
Adjust the pressure gradually, while checking the
air output gauge to set the right pressure range.
7. Inspect the air connections for leaks.
Repair any leaks found.
8. If the tool will not be used at this time, turn off
and detach the air supply, safely discharge
any residual air pressure, and release
the throttle and/or turn the switch to its off
position to prevent accidental operation.
purging Air From Hydraulic System
Note: Before first use, the hydraulic ram may
need to be purged. Some air may intrude in the
hydraulic system due to movement during shipping.
Air bubbles can become trapped inside the hydraulic
system, thereby reducing the efficiency of the Jack.
Purge air from the system if efficiency drops.
1. Place the slotted end of the Jack Handle over the
Release Valve and turn 1-1/2 turns counterclockwise.
2. Remove the Oil Filler Plug on the
side of the Jack Reservoir.
3. Rapidly pump the Handle several times to
purge air from the hydraulic system.
4. Use the Handle to turn the Release
Valve screw clockwise until snug.
5. Top off Jack Reservoir with a
high quality hydraulic jack oil.