FEED RATE CONTROL VALVES
D Turn needle valve, marked ''Retract" on top of housing, approximately 1- - 1/2
turns counterclockwise (open).
D Turn the other needle valve, marked ''Forward" on top of housing, clockwise
until closed (do not tighten too snugly).
D Start the unit and slowly turn needle valve, marked ''Forward", counterclock-
wise (open) until the desired forward rate of feed is reached.
D A final adjustment of the rate of return (retract) can be made with the needle
valve marked ''Retract" on housing.
TIMING VALVE (METERING NEEDLE)
D The timing valve is used to regulate the time lapse between the drill reaching
the drill depth and the time the unit retracts.
D The timing valve can be adjusted so the unit will retract immediately,up thru a
range of approximately 7 seconds.
D Turn the timing valve clockwise to increase the time delay.
D Turn the timing valve counterclockwise to decrease the timing delay.
FAILURE TO OBSERVE THE FOLLOWING WARNINGS COULD RESULT IN INJURY.
WARNING
D Always operate, inspect and maintain this tool in accordance
with all regulations (local, state, federal and country) that ap-
ply to air operated tools.
D Operate this tool at 90 p.s.i.g. (6.2 bar) maximum air pressure
at the air inlet of the tool.
D Disconnect air supply from tool before removing/installing bit
or device attached to tool or performing maintenance proce-
dures.
D Keep hands, clothing and long hair away from rotating end of
tool.
D Anticipate and be alert for sudden changes in motion during
start up and operation of any power tool.
D Never exceed rated r.p.m. of tool.
D Wear suitable eye and hearing protection while operating tool.
WARNING
Wear eye protection when operating
or performing maintenance on this
tool.
WARNING
Turn off air supply and disconnect air
supply hose before installing,
removing or adjusting any accessory
on this tool, or before performing any
maintenance on this tool.
WARNING = Hazards or unsafe practices which could result in severe personal injury, death or substantial
property damage.
CAUTION = Hazards or unsafe practices which could result in minor personal injury or product or property
damage.
NOTICE = Important installation, operation or maintenance information.
4
OPERATING AND SAFETY PRECAUTIONS
WARNING
Wear hearing protection when
operating this tool.
WARNING
Do not use damaged, frayed or
deteriorated air hoses and fittings.
REMOTE OPERATION
D Install a tube connector (59756- - 004) in the valve port on top of the end cap.
D Connect the port (using 1/8", 3 mm, i.d. tubing) to a remote operated valve
which, when actuated, causes the spool valve in the valve housing to shift to
the forward feed position, thus starting the forward stroke of the tool.
D Install a tube connector (59756- - 004) in the valve port marked ''Retract Sig-
nal" on top of valve housing.
D Connect the port (using 1/8", 3 mm, i.d. tubing) to a remote MANUALLY oper-
ated valve. This valve is used as an emergency retract in case of a part mis-
alignment. When properly set- - up and applied, the tool will automatically
retract and return to the start position. See ''Set- - Up Procedure".
SPECIAL NOTE: The air inlet and remote ports ofthe valve housing have tapered
pipe threads and should not require the use of thread sealants, such as sealant
tape or pipe joint compounds. Thread sealants, when used improperly, can con-
taminate air passages and cause valve or tool malfunction.
D Do not lubricate tools with flammable or volatile liquids such as
kerosene, diesel or jet fuel.
D Do not remove any labels. Replace any damaged label.
D Use only accessories recommended by ARO.
NOTICE
D The use of other than genuine ARO replacement parts may
result in safety hazards, decreased tool performance and in-
creased maintenance and may invalidate all warranties.
D ARO is not responsible for customer modification of tools for
applications on which ARO was not consulted.
D Tool maintenance and repair should be performed by autho-
rized, trained, competent personnel. Consult your nearest
ARO authorized servicenter.
WARNING
Operate at 90 p.s.i.g.
(6.2 bar/620 kPa)
maximum air pressure.