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Form No. A1041C
Date 12-91
AIR SUPPLY
The efficiency and life of this tool depend on the proper supply of clean, dry, lubricated air at
about 90 lbs. P.S.I., although higher or lower pressures may be used. The use of an air line
filter, pressure regulator and lubricator is recommended.
Before connecting the tool, blow the air line to remove water and dirt which may have accumu-
lated. This is especially important for a new line or when the line has not been used for some
time.
HOSE AND HOSE CONNECTION
The air supply hose is 3/8" I.D. If extension hose is necessary, use 1/2" hose, with couplings
not less than 3/8" I.D.
LUBRICATION
An oil supply to the air motor is important. SIOUX air line lubricators are recommended. Adjust
to deliver 2 drops of SIOUX Air Motor Oil No. 288 per minute. When air line lubricator is not
used, place 10-15 drops of SIOUX No. 288 oil into the air inlet twice daily.
OPERATION
This tool is equipped with a teasing throttle. By slightly depressing the trigger the chuck will
rotate slowly. This is useful for starting a drill bit without first spotting with a punch. By fully
depressing the trigger the chuck will rotate at it’s top speed.
If the gear case is removed or loosened, retighten to 35 ft. lb.
INSTRUCTIONS & PARTS LIST
FOR 1449HPG DRILL
(SERIAL C)
