DeWalt 7739 Use & Care Manual Download Page 1 | Manualshive

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Summary of Contents for 7739

Page 1: ...TIONS FREQUENTLY 7739 7749 10 RADIAL ARM SAW Cat Nos 7739 7749 This hd let is provided lor your convenience in the usgand care of your new DeIUalt Saw These instruc tiOns include operati xr usage precautions preven tlVe maintenance maintenarrce and other pertinent dita to assist you in assuring long life and depen dable service from your saw ...

Page 2: ...nstall into Roller Head as shown 2 Remove guard box tip carton on end and remove machine Set machine upright Assemble cleats on lixed board with the sir 5 screrys provided in the hardware bag DO NOT TIGHTEN SCREWS ALL THE WAY DOWN 2 5 To rnstall motor assembly lirsL bact out the two set screws on end cap srff tienty to alloy the paddle to b lifted and h td rn a position to remove tlp end cap mounE...

Page 3: ...reen wire to a live terminal l Cord Connected Tools In the erent of a malfunction or breakdown grounding proi ides a path of least resistance for electric current to reduce the risk of electric shock This tool is equipped ith an electric cord having an equipment grounding conduclor and a grounding plug The plug must be plug eed into a matching outlet that is properly installed and grounded in acco...

Page 4: ...ht before starting any operation Push handles back to tighten Pull to loosen 4 DO Be sure blade and arbor collars are clean and recessed side of collars are against blade Tighten arbor nut securely using both wrenches provided See Rule 16 5 DO Keep saw blade sharp and properly set 6 DO Use anti kickback attachment on guard 7 DO Keep arm tracks and bearing surfaces clean and dry Periodic cleaning w...

Page 5: ...tually starting to operate it All controls as well as the major parts of the radial arm machine are shown and identified here AR RADIAL M ELEVATING HANDLE COLUMN GUARD BASE GUIDE FENCE TABLE CLAMP SCREWS MITER CLAMP HANDLE LOWER GUARD OPERATING HANDLT DUST SPOUT ANTI KICKBACK ASSEMBLY RIP LOCK YOKE CLAMP HANDLE RESET BUTTON RIGHT HAND MOTOR ARBOR SPACER BOARD GUARD RETAINER ONOFF CONTROLS KEY LOCK...

Page 6: ... tt yot trump handle ii pushed back from the hand grip of the yokel Ii at any rimc it is possible to move this handle so rhat ir srrikes lhe rear legof the yo ii i i i frfp adiustment Its proper position for machine op uti6n is approximaiery oo 6 t r to the hand grip of the yoke To readjust a Pull yoke clamp handle forward to release friction locking action b Insert screw driver between the yoke a...

Page 7: ...len wrench in recess at bottom of shafts and turn bearing shaft until the bearing is snugly aqainst the track Repeat for the second bearing Check the force required to move the rollelhead Rcadjust as required f Tighten the hex lock nuts while holding each bcaring shaft in its adjusted position ARM TO COLUMN Prior to readjusting the arm clamp cam check adjustment of the arm to column With the arm c...

Page 8: ...y exists between the base and the column or if the saw is hard to elevate then the base requires adjustment To adjust Face rear of machine a Loosen locknuts and brass set screws B Loosen tam nuts and clamp bolts A Adjust lower bolt first b Elevate and lower the arm If the column binds and elevation is diTculr righten the jam nuts A againsr the right side of the slot until there is no play but elev...

Page 9: ...the arbor directly over aeother locking nut Loosen the lockin_e nut and push the table up until ii touches the end of the arbor Tighten the loc ing nut If required adjust the other locking nuts in the same manner CHECK TABLE TOP AND GUIDE FENCE The table iop assem bi1 and guide strip are checked for straightness_ before leaving the factory As all wood products must breathe and are affected br r ar...

Page 10: ...w driver loosen left adjusting screw and tighten right adjusting screw re engage miter letch check and repeat if necessary f If saw bladc moves away from square as it comes forward disengage miter latch Loosen right adjusting screw ancl tighten left adjusting screw re engage miter latch Check and repeat if necessary g when saw travel is parallel to square for entire length iock adjust ment screws ...

Page 11: ...stock as r as done in cross cut position if tooth marks again appear the motor is too high or lorv in the rear of the yoke To odiust when mqrks oppeor on bofiom side of cut left hond piece of siock a Disengage bevel clamp handle Do not pull bevel pin b Loosen all lock nuts c Loosen by equal amounts right and left set screws about l 6 twn and tighten bottom set screw d Retighten lock nuts and bevel...

Page 12: ...ainst the yoke locator pin bell pull ing the yoke locatcr pin out cf the hole in the roller head You can now rotate the saw blade in a clock wise direction Release the pressure on the bell ancl continue rotating the blade until the spring rnounted yoke locator pin falls into the next hole You have now cut in the table top a t 4 turn groove known as the swing line The saw is now in the in rip posi ...

Page 13: ...alignment Adjust as necessary PAI GER Coasting cutting tools can be dangerous _ apply the oraKe tmmec tately on manual hraking units to stop the tool as soon as the switch is turned otf I_1 olgrq developed during manual or automatic braking may loosen the blade retaining nut therefore the arbor nut stroJtO U6 checked periodically and tightened if necessary Never cycle the tool on and off rapidly a...

Page 14: ...G and tilt to the desired angle With the handle released the bevel locating pin automatically locates popular O 45 and 90 bevel positions When desired bevel angle is obtained push clamp handle G and lock bevel NoTE Always leave the anti kickback assembly in place Adiust it to iust crear the workpiece in crosscutting operations and about 1 28 below the top ol the workpiece during all ripping operat...

Page 15: ...er dado head for Oe tr ot cut desired then lock carriase sCuretv against machine arm Be surE to adiusl guard on infeed side lower anti kickbacli assembly to hold material When startins cut hold materialfirmly down on table anii back against guide Feed evenly Never leed material lrom side on which anti kickback device is located t t IMPORTANT Check Lower Guard precautions on page 4 IN RIP AND OUT R...

Page 16: ... Figs B C and D Start in bevel cross cut position as de scrib d above Now place the saw into r ip position arid using rip lock lock securely against aim at desired point Be sure to lower guard at in feed oosition adiust the anti kickback rievice and then use a wood pusher board to fur ther prevent kickback IMPORTANT Check Lower Guard precautions on page 4 NOTE ALWAYS WEAR GOGGLES WEAR DUST MASK IF...

Page 17: ...aw guide dust between lumber and fence Keep table top clean Table not parallel with arm Make proper adjustment Guide fence not straight Rear edge of fixed board not straight Replace fence Sand or reola 2 Lumber has a tendencv to walk away from fence when ripping or ploughing 3 Saw stalls hen ripping or ploughing Saw blade is not parallel with fence fence Make heel adjustment Adiust cross cut trave...

Page 18: ...n arm Yoke too loose when clamped to roller head Bevel clamp handle loosc Table top not parallel with arm 8 Saw tends to advance over lumber too fast Roller head bearings not properly adiusted Adiust roller head bearing to arm Dull blade Replace or sharpen Not feeding saw properly Draw saw blade across lumber with a slow and steady pull 9 Saw does not traverse smoothly in tracks Dirty tracks Clean...

Page 19: ... Stand Use with DeWatt 7715 7716 7717 B D Bench Grinders and Miter Box A stable work shop bench for many uses Work surface 584 2 mm x 476 3 mm 23 x 18 high Rubber loot grommets R t205 Adjustable Cutoff Gauge Use with any radial arm saw_ Clamps to fence for repeated ac cu ate length cutting Fine ad JUSt i o screw provides precise setrrl g lcr exact length 35010 Roller Head Stop Mounts on arm ot 254...

Page 20: ...SAWS Dado These great DADO SETS cut uniform slots grooves half laps drawer corners rabbet cuts with Spacers and Chippers Assure Finest Quality Cut and Precision over Longest Life R6024 152 4 mm 6 Dado Head Set Flat Ground 2 Blades 4 Chippers 3 2 mm 1 Chipper 1 6 mm 6 15 9 mm bore R6001 152 4 mm 6 Dado Head Set Hol low Ground 2 Blades 4 Chippers 3 2 mm 1 Chipper 1 6 mm 1r7 u 15 9 mm bore R6025 203 ...

Page 21: ...h of wiring General overloading of power company s facilities ln many sections of the country de mand for electrical power ex ceeds the capacity of existing generating and distribution systems Request a voltage check from the power company Incorrect fuses in power line lnstall correct fuses Motor starts slowly or fails to come up to full speed Low Voltage will not trip starting relay Correct low v...

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