Delta 14-070 Instruction Manual download pdf (Page 16)

DRILLING HOLES

TO DEPTH

Where a number of holes are to be drilled to exactly the

same depth, a depth stop is provided in the pinion shaft

housing and is used as follows:

1. Loosen lock screw (A) Fig. 23, and rotate housing

(B) until the pointer (C) lines up with the desired

depth indicated on scale (D). Then tighten lock

screw (A).

2. All holes will then be drilled to the exact depth as

indicated on scale (D) Fig. 23. NOTE: Scale (D) is

calibrated in both inches and metric.

ADJUSTING SPINDLE

RETURN SPRING

For the purpose of automatically returning the spindle

upward after a hole has been drilled, a spindle return

spring is provided in the spring housing (A) Fig. 24. This

spring has been properly adjusted at the factory and

should not be disturbed unless absolutely necessary. To

adjust the return spring, proceed as follows:

1. DISCONNECT THE DRILL PRESS FROM THE

POWER SOURCE.

2. Loosen the two nuts (B) Fig. 24, approximately 1/4".

Do not remove nuts (B) from shaft (C).

3. While firmly holding spring housing (A) Fig. 25, pull

out housing and rotate it until the boss (D) is engaged

with the next notch on the housing. Turn the housing

counterclockwise to increase and clockwise to

decrease spring tension. Then tighten the two nuts

(B) to hold the housing in place.

IMPORTANT: Inside nut (B) should not contact spring

housing (A) when tight.

Fig. 23

Fig. 24

Fig. 25

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Delta 14-070 Instruction Manual Page 16