Delta 70-200 Drilling Holes to Depth, Adjusting Spindle Return Spring, Table Adjustments

Models: 70-200

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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 (A) Fig. 27, and is used as follows:

D

C

A

1.Loosen lock lever (B) Fig. 27, and rotate housing (A) until the pointer (C) lines up with the depth indicated on the English/Metric scale (D) that you want the spindle to lower. Then tighten lock lever (B).

2.The spindle will then lower to the exact depth as indicated on the scale (D) Fig. 27

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. 28. 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. 28, approximately one- quarter inch. IMPORTANT: DO NOT REMOVE NUTS

(B) FROM SHAFT.

3.While FIRMLY holding spring housing (A) Fig. 28, pull out housing and rotate it until the roll pin (C) 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: NUTS (B)

SHOULD NOT CONTACT SPRING HOUSING (A) WHEN TIGHT.

TABLE ADJUSTMENTS

1.The table can be raised or lowered on the column by loosening table clamp handle (A) Fig. 29, and turning the table raising and lowering handle (B). After the table is at the desired height, tighten handle (A).

2.The table can be tilted right or left by pulling out and removing table alignment pin (C) Fig. 30, and loosening table locking bolt (D). Tilt the table to the desired angle and tighten bolt (D). A tilt scale and pointer are provided on the table bracket casting to indicate the degree of tilt. When returning table to the level position, replace table alignment pin (C) Fig. 30. This will automatically position the table surface at 90 degrees to the spindle.

B

Fig. 27

C

A B

Fig. 28

A

B

Fig. 29

D

C

Fig. 30

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Delta 70-200 instruction manual Drilling Holes to Depth, Adjusting Spindle Return Spring, Table Adjustments