2
Printed In U.S.A.
INSTRUCTIONS & PARTS LIST FOR
540ESC DIE GRINDER (20,000 RPM)
540ESSC DIE GRINDER (14,000 RPM)
AIR SUPPLY
The efciency and life of this tool depend on the proper
supply of clean, dry, lubricated air at 90 lbs. P.S.I., although
lower pressures may be used. The use of an air line lter,
pressure regulator, and lubricator is recommended, (such
as Sioux 1660).
Before connecting the tool, blow the air line to remove
water and dirt, which may have accumulated. This is es-
pecially 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 neces-
sary, 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 1-2 drops
of SIOUX Air Motor Oil No. 288 per minute. When air line
lubricator is not used, squirt 10-16 drops directly in the air
inlet twice daily.
READ CAREFULLY AND FOLLOW INSTRUCTIONS
SAFETY—SANDER
1. The operator of this tool and persons within the con-
nes of the working area should be equipped with
complete EYE AND FACE PROTECTION.
2. The SIOUX 5" Sander is shipped with 1 basic sand-
ing disc holder plus 2 ber backing pads to be used
separately as sanding disc backing. UNDER NO
CIRCUMSTANCES SHOULD MORE THAN ONE OR
LARGER THAN 5" SANDING DISCS BE USED AT
ONE TIME.
1316 1391 SETTING FOR LUBRICATOR
MALE COU-
PLER NIPPLER
FEMALE
QUICK COU-
PLER
LUBRICATOR
(Use Sioux Air Motor
Oil No. 288)
AIR HOSE
REGULATOR
FILTER
(Automatic
Drain)
3. Never allow the edge of a disc to come into contact
with any obstruction, sharp or otherwise, while the
disc is turning.
4. DISCONNECT TOOL FROM AIR LINE BEFORE
REMOVING OR INSTALLING DISCS.
5. DISCS WHICH ARE WORN, NICKED, CUPPED,
RECUT, OR OUT OF BALANCE ARE DANGEROUS
and should be discarded.
6. Use only good quality, at ber backed sanding
discs with no greater diameter than 5".
7. NEVER, UNDER ANY CONDITIONS, ARE GRIND-
ING WHEELS OF ANY KIND TO BE USED ON
THIS SANDER.
8. When using this tool the SPARK STREAM SHOULD
BE KEPT AWAY from the operator, all persons within
the working area, and any ammable material.
9. The Sander should be OPERATED ONLY WHILE
THE DISC IS IN CONTACT WITH SURFACE to be
sanded.
10. CAUTION: Do not operate with air pressure over 90
P.S.I. since dangerous overspeeds can result.
SAFETY—DIE GRINDER
1. Follow safety rules 1, 4, 8, & 10 above.
2. Before placing the tool in operation, the foreman
and operator are cautioned to study and follow all
instructions with special emphasis on safety, and
should be acquainted with and follow the require-
ments of the applicable section of the ANSI Safety
Code B7.1 latest edition.
The air screen in the handle should be cleaned oc-
casionally. Use of Sioux Authorized Service Centers is
recommended for repair and service of this tool.
