19
Fig. 53
Fig. 54
Fig. 55
2. IMPORTANT: Before setting the limit switch depth
setting, make certain all assembly instructions for
PNEUMATIC LINE BORING MACHINES detailed in the in-
struction manual have been completed. Read and under-
stand “STARTING AND STOPPING INSTRUCTIONS FOR
PNEUMATIC LINE BORING MACHINES”, before continu-
ing these instructions.
Setting Limit Switch (Depth Control)
3. Place a test board (F) Fig. 54, long enough to reach
both clamp cylinders (G), against the fence and under
the boring bits as shown. Adjust stop bracket (C) Fig. 53,
so it indicates the exact same thickness as that of the
board (F) Fig. 54. (If the board is 3/4" thick, set the stop
bracket (C) at 3/4" etc.).
4. Operate the unit through one cycle. Press in and
hold the start button (J) Fig. 55. The two air clamps (G)
Fig. 55, will activate and the clamps will start downward,
clamping the board firmly against the table. In addition,
the motor will start and the boring head will lower, as
shown in Fig. 55.
5. If the boring bits just make contact with the surface
of the wood, the depth setting is correct. If the boring
bits drill into the wood, or if the boring bits do not
contact the surface of the wood, an adjustment to the
limit switch is necessary.
6. To adjust the limit switch (E) Fig. 53, loosen lock nut
(L). NOTE: If the boring bits drilled into the wood, turn
adjustment screw (M) Fig. 53, counterclockwise. If the
boring bits did not contact the surface of the wood, turn
adjustment screw (M) clockwise. Tighten locknut (L) Fig.
53.
7. Recheck limit switch depth control setting; repeat
STEPS 3 and 4 if necessary.
Fig. 56
Fig. 57
MOVING FENCE AND TABLE
The fence and table can be moved in or out so that holes can be bored up to four inches from the edge of the
workpiece.
Loosen table lock knobs (A) Fig. 56, and move the table (B) in or out until the index pin (C)
Fig. 57, when pushed down, lines up with the desired mark on the scale (D) you wish the holes to be drilled. Then
tighten lock knobs (A) Fig. 56.
C
L
M
E
F
G
G
J
G
G
F
A
B
C
D
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