Delta DP115 Instruction Manual download pdf (Page 12)

ADJUSTING SPINDLE

RETURN SPRING

The spindle is automatically returned to its upper most

position when the handle is released. It is recommended

that the handle be allowed to slowly return to the top

position after each hole has been drilled in the material.

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 MACHINE FROM POWER SOURCE.

2. Loosen nuts (B) and (E) Fig. 24. Make sure spring

housing (A) stays engaged with head casting.

3. While FIRMLY HOLDING spring housing (A) Fig. 24

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

with the next notch on the housing. Turn the housing

counterclockwise to increase or clockwise to decrease

spring tension. Turn nut (E) until it contacts spring

housing (A), then back nut (E) out a 1/4 turn. Tighten nut

(B) against nut (E), to hold the housing in place.

IMPORTANT: Inside nut (E) should not contact spring

housing (A) when tightened.

Fig. 24

OPERATION

Your drill press is to be used with drill bits with a shank of 1/2" or less in diameter. The following will give the inexperienced

operator a start on common drill press operations. Use scrap material for practice to get a feel of the machine before

attempting regular work.

WARNING: The use of accessories and attachments not recommended by Delta may result in risk of injury.

IMPORTANT: When the workpiece is long enough it

should always be positioned on the table with one end

against the left side of the column, as shown in Fig. 25.

This prevents the workpiece from rotating with the drill

bit or cutting tool, causing damage to the workpiece or

personal injury to the operator. If it is not possible to

support the workpiece against the column, the

workpiece should always be fastened to the table using

clamps or a vise.

Fig. 25

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Delta DP115 Instruction Manual Page 12