
INSTRUCTIONS
For
504 504T A504 A504T B504 B504T C504 C504T 0504 0504T
505 505T A505 A505T B505 B505T C505 C505T 0505 0505T
507 507T A507 A5071 C507 C5071 0507 and 0507T
Vertical Air Grinders Sanders and Wire Brush
GENERAL INSTRUCTIONS
Before placing the tool in operation, the foreman and operator is cautioned to study and FOLLOW all in-
structions with special emphasis on safety (refer to Important Safety Requirements ). The foreman and
safety director must be acquainted with and follow the requirements of the applicable Section of the A.S.A.
Safety Code B7.1latest edition.
AIR SUPPLY
Grinders are designed to operate on clean moisture free air at a pressure of 90 p.s.i. at the tool with filter,
pressure regulator and lubricator in the air line. If the lubricator is eliminated, the oil chamber in the tool
must be filled daily. Air hose should not be less than
Y2
I.D. Quick couplers, if used should be
7'2
size.
Before connecting- tool, blow the air line to remove water and dirt. This is especially important for a new
line or ope which has not been sed for a time.
LUBRICATION
The air motor is lubricated with an air line lubricant designed to prevent rust and supply adequate lubrica-
tion. Our Cat. No. 288 oil is excellent. Adjust oiler to 3 to 4 drops per minute. If the air line lubricator
is not used, fill oil reservoir daily.
After 40 hours of use, inject 3 to 4 shots of grease (our Cat. No. 1232) through the grease fttings with
grease gun supplied. See maintenance'; for additional instructions.
OPERATION
Grind steadily without excessive slowing down of the grinder to prevent wheel damage which could result
in breakage. Grind at as uniform load speed as possible to prevent excess wear, especially on governor
parts. A dropped or severly bumped wheel must be correctly examined before reusing. Do not drop the end
of the hose on a floor where it will pick up dirt and transport it into the tool, causing excessive wear and
governor sticking. Provide a stand for holding the grinder when not in use.
OVERS PEE DING
If overspeeding occurs, the grinder MUST BE REPAIRED and WORN PARTS REPLACED. (GRIND-
ERS MUST BE CHECKED DAILY WITH A TACHOMETER).
SAFETY
See General Instructions and Important Safety Requirements.
MAINTENANCE
Grinders must be serviced at definite intervals for safe operation and lowest operating cost. Dismantle after
100 hours of use. If little wear is shown, the time may be extended. Mechanics must be qualified, work in
clean areas, recognize worn parts and the need of moving parts to be lubricated. Pack a liberal amount of
Sioux No. 1232 grease around governor and levers. The use of Sioux Authorized Service Stations is recom-
mended.
SIOUX TOOLS INC
SIOUX
CITY IOWA U.S.A.
51102
FORM 162-10.70