ADJUSTING SPINDLE

RETURN SPRING

The spindle is automatically returned to its upper most position upon release of the handle. It is recommended that the handle be allowed to slowly return to the top position after all holes have been bored 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 the tool from the power source.

2.Loosen the two nuts (B) Fig. 32, approximately 1/4". Do not remove nuts (B) from shaft (C).

3.While firmly holding spring housing (A) Fig. 33, 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.

OPERATION

The following directions 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 attach- ments 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 column, as shown in Fig. 34. 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.

A

B

C

Fig. 32

D

B

A

Fig. 33

Fig. 34

INSTALLING AND REMOVING DRILL BITS

1.Insert smooth end of drill bit (A) Fig. 35, as far as it will go into the chuck (B), and then back the bit out 1/16", or up to the flutes for small bits.

2.Make certain that the drill bit (A) Fig. 35, is centered in the chuck (B) before tightening the chuck with the key

(C).

3.Turn the chuck key (C) Fig. 35, clockwise to tighten and counterclockwise to loosen the chuck jaws.

4.Tighten all three chuck jaws to secure the drill bit sufficiently so that it does not slip while drilling.

5.MAKE SURE chuck key (C) Fig. 35, is removed from chuck before starting drill press. Your chuck key (C) is equipped with a self-ejecting pin (D) which eliminates the hazard of the key being left in the chuck.

D

B

C

A

Fig. 35

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Delta 11-990C instruction manual Adjusting Spindle Return Spring, Operation, Installing and Removing Drill Bits
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11-990C specifications

The Delta 11-990C is a powerful and versatile tool in the landscape of woodworking and home improvement projects. Renowned for its exceptional performance and innovative features, this portable table saw is designed to meet the needs of both amateur and professional woodworkers alike.

One of the standout features of the Delta 11-990C is its robust 15-amp motor, which delivers an impressive 4,800 RPM. This power allows users to cut through various types of wood materials with ease, from softwoods to hardwoods. The saw's 10-inch blade ensures deep cuts, making it suitable for a wide range of applications, including dados and rip cuts.

The design of the Delta 11-990C incorporates a sturdy cast-iron table that provides a durable and stable work surface. This large table area enhances precision when making intricate cuts, and its smooth surface helps minimize friction, allowing for better control over the material being cut. Additionally, the saw includes an adjustable extension wing, which offers extra support for larger workpieces.

One of the key technologies featured in the Delta 11-990C is the Quick Release Blade Guard. This safety feature allows for easy access to the blade for maintenance and adjustments while ensuring maximum protection during operation. It also comes equipped with a riving knife, which reduces the risk of kickback, contributing to a safer woodworking experience.

Another notable aspect of the Delta 11-990C is its easy-to-use fence system. The T-square fence design offers accurate and repeatable cuts, enabling users to work efficiently. The fence can be adjusted quickly and locks securely in place, guaranteeing precision for both rip and crosscut operations.

Moreover, the portability of the Delta 11-990C makes it an ideal choice for contractors and hobbyists who may need to move their worksite frequently. The saw features onboard storage for accessories, such as the miter gauge and push stick, ensuring that all necessary tools are within reach.

Overall, the Delta 11-990C combines power, precision, and safety features, making it one of the most sought-after table saws on the market. Whether for home improvement tasks or professional woodworking projects, it stands out as an essential tool for those seeking quality and reliability in their craftsmanship.
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