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8 1/2-Inch Power Ratchet Wrench Operator's Manual
Maintenance
Operation
LUBRICATION:
An automatic in-line filter-regulator-lubricator is recommended as it increases tool life
and keeps the tool in sustained operation. The in-line lubricator should be regularly
checked and filled with John Deere AT-4003 air tool oil. Proper adjustment of the in-line
lubricator is performed by placing a sheet of paper next to the exhaust ports and
holding the throttle open approximately 30 seconds. The lubricator is properly set when
a light stain of oil collects on the paper. Excessive amounts of oil should be avoided.
In the event that it becomes necessary to store the tool for an extended period of time
(overnight, weekend, etc.), it should receive a generous amount of lubrication at that
time. The tool should be run for approximately 30 seconds to ensure oil has been
evenly distributed throughout the tool. The tool should be stored in a clean and dry
environment.
Recommended lubricants: Use John Deere AT-4003 air tool oil or any other high
grade turbine oil containing moisture absorbent, rust inhibitors, metal wetting agents
and an EP (extreme pressure) additive.
PRE-OPERATION:
Before the tool is connected to the air supply, clear the air hose of accumulated dust
and moisture. Before removing a tool for service or changing sockets, make sure the
air line is shut-off and drained of air. This will prevent the tool from operating if the
throttle is accidently engaged.
OPERATION:
This wrench is equipped with a lever throttle which allows the operator to vary the
speed. Direction control is located on the back of the ratchet head. Initial tightening
and loosening of fasteners should be done manually with ratchet used as a hand tool.
Nuts may then be run on and off with relative ease.
Keep sockets firmly against work surface when running tool to avoid jarring the sockets
from the anvil or rounding the fastener heads. Excessive torque leverage above tool
specifications will result in premature gear wear.
CAUTION: HAND TOOL SOCKETS CAN BREAK CREATING A
HAZARD FROM FLYING PIECES. ALWAYS CHECK
SOCKETS, RETAINERS AND DRIVES REGULARLY
FOR WEAR OR DAMAGE AND REPLACE WHEN
NECESSARY.
THE DESIGN OF THIS TOOL REQUIRES THAT
EXTRA CARE MUST BE TAKEN WHEN USING THE
RATCHET IN TIGHT AREAS. HANDS AND FINGERS
SHOULD NOT BE HELD BETWEEN TOOL AND
WORK SURFACE. PERSONAL INJURY MAY
RESULT.