V5122, V5124, V5128, V5132, V5133, V5134, V5138, V5143, V5147, V5222, V5224, V5228,
Read and understand "Safety Instructions For Air Tools" and these instructions before
AIR SUPPLY
The efficiency of the tool is dependent on the proper supply of clean dry air at 90 psig (6.2 bar). The use of a line filter, pressure
regulator, and lubricator will insure maximum output and life of tools. Before connecting tool, blow out the air line to remove water
and dirt that may have accumulated.
HOSE AND HOSE CONNECTIONS
Supply hose should be not less 1/2" (13mm) I.D. Extension hoses should be at least 1/2" (13mm) I.D. Use couplings and fittings
with at least 3/4" (19.05 mm) I.D.
LUBRICATION
· Use SIOUX No. 288 air motor oil. An airline lubricator, set to deliver 3 to 4 drops per minute, is recommended. If a lubricator is
not used, fill the oil reservoir in the handle periodically.
· Inject Sioux No. 121 grease 3 or 4 times through the grease fittings after every 40 hours of operation.
GENERAL OPERATION
· CHECK THE TOOL DAILY WITH A TACHOMETER!
· Safety Shut Off Valve.
This tool is equipped with a Safety Over-Speed Shut Off Valve. The purpose of this valve is to shut the tool off if it over-
speeds. This valve is located in the drive flange of the tool. DO NOT remove, replace, or modify the drive flange in any
way.
If the tool stops while in operation ,it is most likely over-speeding and the Safety Over-Speed Shut Off Valve has activated.
DO NOT ATTEMPT TO RESET THIS VALVE! AN OVERSPEEDING GRINDER CAN CAUSE THE GRINDING WHEEL
TO EXPLODE. EXPLODING GRINDING WHEELS CAN CAUSE SERIOUS INJURY! Return the tool to an authorized Sioux
Service Center for inspection and repair.
· Mounting Wheels.
Cup grinding wheels and 7" & 9" depressed center grinding wheels must be tightened to 120 in-lb. (1.4KG-M) to keep
wheels from spinning off.
7" & 9" depressed center grinding wheels are mounted to the tool with the No. 510 holder. Screw the 510 holder on to
the spindle. If necessary, place the 25894 washers between the holder and the tool drive flange to adjust for wheel
thickness. DO NOT place the washers directly between the wheel and the holder. Install the wheel and secure with the
512 Holder Nut. Torque the nut to 120 in-lb. (1.4KG-M)
INSTRUCTIONS FOR
V5232, V5233, V5234, V5238, V5243, V5247
VERTICAL AIR GRINDERS & SANDERS
operating this tool.
#510
HOLDER
POWER UNIT
5/8" X 11 THREAD
DRAIN
#25894
FLANGE
WASHERS
DEPRESSED CENTER
GRINDING WHEEL
#512
HOLDER NUT
1
Form ZCE452
Date 2003June19/C
Page 1 of 16
#30110
WRENCH
Printed In U.S.A.