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11
TWO SPEED GEAR SHIFT
The Model 7751 Hammer-Drill has a two speed gear shift that provides a
high speed of approximately 2500 RPM and a low speed of approximately
1000 rpm (with the trigger switch in “Full-On” position).
For high speed operation, rotate the speed selecting knob (A) Fig. 4
clockwise aligning the “H” with the indicating mark (B) Fig. 4. For low speed
operation, rotate the knob counter-clockwise, aligning the “L” with the
indicating mark. You may need to rotate the chuck by hand while rotating
the knob.
Do not shift speeds while the tool is running.
Disconnect tool from power source!
ATTACHING THE AUXILIARY HANDLE
Use this auxiliary handle and hold it as illustrated in Fig.
6 to resist rotational force and to prevent accidental
electrical shock, resulting from cutting a live wire when
drilling into a wall or other blind areas. Use this auxiliary
handle during all drilling operations.
1. Insert the square nut (A) Fig. 5 into the recess in the auxiliary handle
(B).
2. Position the clamping plate (C) on the auxiliary handle with the
serations over the hex opening.
Disconnect tool from power source!
B
A
B
A
D
F
B
E
C
A
Fig. 3
Fig. 4
Fig. 5