3M AT-DIS7_PROHD Sander User Manual


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34-8700-5191-8 1 Revision 10/03/07
3M™ Overhaul Service Kit
The part number 20347, 3M™ Overhaul Service Kit, contains all the replacement parts that naturally
wear over time and a straightforward manual to make servicing a 3M™ sander simple. Overhauling the
Random Orbital Sander can be made even easier with the use of the above Service Tools. The Service
Tools also reduce the chance of improper assembly.
SERVICE INSTRUCTIONS FOR
3M™ 12,000 RPM 5 in. (127 mm)
and 6 in. (150 mm)
RANDOM ORBITAL SANDERS
Part Number Description Qty
3MA0040 EXTERNAL RETAINING RING 1
3MA0021 BEARING - 2 SHIELDS 1
3MB0005 ROTOR 1
3MA0010 VANE 5
3MA0041 WOODRUFF KEY 1
3MA0042 O-RING 1
3MA0019 BEARING - 2 SHIELDS 1
3MA0938 DOUBLE ROW ANGULAR CONTACT BEARING - 1 SEAL 1
3MA0039 INTERNAL RETAINING RING 1
3MA0062 INTERNAL MUFFLER 1
3MA0068 MUFFLER INSERT 1
3MA0007 VALVE 1
3MA0009 VALVE SEAT 1
3MA0014 VALVE SPRING 1
3MA0043 O-RING 1
3MA0008 VALVE STEM ASSEMBLY 1
3MA0166 MUFFLER HOUSING 1
3MA0016 SPACER 1
3MA1417 INSTRUCTIONS FOR 5 in. AND 6 in. ROS OVERHAUL SERVICE KIT 1
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