Delta DP350 Instruction Manual

Also see for ShopMaster DP350: Instruction manual Instruction manual

Contents

Delta DP350 Instruction Manual Manual pdf 14 page image

14INSTALLING AND REMOVING DRILLBITSDISCONNECT MACHINE FROM POWERSOURCE.1. Insert smooth end of drill bit (A) Fig. 29, into chuck(B), as far as it will go, 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. 29, is centeredin the chuck (B) before tightening the chuck with the key(C).3. Turn the chuck key (C) Fig. 29, clockwise to tightenand counterclockwise to loosen the chuck jaws.4. Tighten all three chuck jaws to secure the drill bitsufficiently so that it does not slip while drilling.5. MAKE SURE chuck key (C) Fig. 29, isremoved from chuck before starting drill press. Yourchuck key (C) is equipped with a self-ejecting pin (D)which helps minimize the hazard of the key being left inthe chuck.Fig. 29ABCDADJUSTING SPINDLE RETURN SPRINGThe spindle is automatically returned to its upper most position when the handle is released. It is recommended thatthe handle be allowed to slowly return to the top position after each hole has been drilled in the material. This springhas been properly adjusted at the factory and should not be disturbed unless absolutely necessary. To adjust the returnspring:DISCONNECT MACHINE FROM POWERSOURCE.1. Loosen nuts (B) and (E) Fig. 27. Make sure springhousing (A) stays engaged with head casting.2. While FIRMLY HOLDING spring housing (A) Fig. 27pull out housing and rotate it until boss (D) is engagedwith the next notch on the housing. Turn the housingcounterclockwise to increase or clockwise to decreasespring tension. Turn nut (E) until it contacts springhousing (A), then back nut (E) out a 1/4 turn from springhousing (A). Tighten nut (B) against nut (E), to hold thehousing in place. IMPORTANT: Inside nut (E) shouldnot contact spring housing (A) when tightened. Fig. 27Your drill press is to be used with drill bits with a shank of 1/2" or less in diameter. The following will give the inexperiencedoperator a start on common drill press operations. Use scrap material for practice to get a feel of the machine beforeattempting regular work.The use of accessories and attachments not recommended by Delta may result in risk of injury.IMPORTANT: When the workpiece is long enough itshould always be positioned on the table with one endagainst the left side of the column, as shown in Fig. 28.This prevents the workpiece from rotating with the drillbit or cutting tool, causing damage to the workpiece orpersonal injury to the operator. If it is not possible tosupport the workpiece against the column, theworkpiece should always be fastened to the table usingclamps or a vise.Fig. 28ADEBMACHINE USE