12 Translation of Original Instructions
TO INSTALL/CHANGE THE CONTACT WHEEL
1. Disconnect the tool from the air line.
2. Hold the tool with the contact arm pointing downward. Push the contact arm against a hard surface to gain some slack until the
safety latch (A) clicks into the locking position. Unfasten the set screw (B).（See Fig. 1）
3. Rotate the belt cover (C) and remove the belt.（See Fig. 2)
(Fig. 1)
B
A
(Fig. 2)
C
4. Press the safety latch (A) until the contact arm springs back to its original extended position.
5. Unfasten the screw (D) with a screw driver. Remove and replace the wheel (E). Apply one drop of removable threadlocker on the
threads of the screw and then tighten the screw. (See Fig. 3)
(Fig. 3)
D
E
6. Repeat Step 2.
7. Install the belt.
8. Repeat Step 5.
9. Rotate the belt cover into the closed position and tighten the set screw (B). (See Fig. 4)
(Fig. 4)
B
A
C
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