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ORIGINAL OPERATING INSTRUCTIONS

SAVE THESE INSTRUCTIONS
FOR FUTURE REFERENCE.

Version:20150711

Warning:

For tools equipped with over

load protection, when motor

has shut down off due to over

load, always run machine with

no load for at least 3 minutes

to reduce temperature before

returning to operation to avoid

burn out of the motor.

2 SPEED SWIVEL BASE

MAGNETIC DRILLING MACHINE

Summary of Contents for ST50

Page 1: ...150711 Warning For tools equipped with over load protection when motor has shut down off due to over load always run machine with no load for at least 3 minutes to reduce temperature before returning to operation to avoid burn out of the motor 2 SPEED SWIVEL BASE MAGNETIC DRILLING MACHINE ...

Page 2: ...ANDARD ACCESSORIES Annular Cutter Arbor Drift Wrench M8 Hex Key M2 5 Hex Key M5 CoolantTank Kit Chip Guard Kit Safety Chain OPTIONAL ACCESSORIES 1 2 13mm Chuck Key Adapter Power Input 1100W Voltage See machine nameplate No Full Load min 1 Speed 1 150 300 90 180 Speed 2 225 450 135 270 Dia x Depth of Cutter 50mm x 50mm 2 x 2 Max Capacity Dia x Depth of MT2 Drill 20mm x 150mm 13 16 x 5 7 8 Dia x Dep...

Page 3: ...ectrically malfunction or break down grounding provides a low resistance path to carry electricity away from the user 2 Never carry a tool by the cord or hose and yanking the cord or the hose to disconnect it from the receptacle Always carry the power tools properly and store in dry and dust free place 3 Keep cords and hoses away from heat oil and sharp edges Damaged cords increase the risk of ele...

Page 4: ...ut of reach of children and other untrained persons Tools are dangerous in the hands of untrained users 5 Maintain tools with care Keep cutting tools sharp and clean Properly maintained tools with sharp cutting edges are less likely to bind and are easier to control 6 Check for misalignment or binding of moving parts breakage of parts and any other condition that may affect the tools operation If ...

Page 5: ...l alone on the receptacle 5 It is hazardous to use the drill upside down Do not exceed 90 degrees from horizontal 6 Avoid the magnet releasing Ensure that the magnet has properly adhered to the work piece before beginning drilling 7 Avoid operating annular cutters without coolant fluid Always check coolant level before operating 8 Do not operate with dull or damaged cutting tools This may overload...

Page 6: ...tended for production line type use CAUTION Turn the magnet base off when not in use Leaving the magnet base on continuously will damage it WARNING For safe magnetic adhesion the minimum thickness of the workpiece must be at least 10mm ASSEMBLY Coolant tank assembly required First attach clear tube to the bottom of the coolant tank To do this first loosen the nut and slide nut onto the tube Then s...

Page 7: ...rizontal When drilling at such an angle take precautions to prevent cutting coolant from entering the motor Paste type coolant should be used CAUTION Machine is equipped with a reversing switch Always ensure that direction of rotation is correct before operating Operating in the wrong direction could result in damage to the cutter 1 First fit tool into arbor and line up with intended center of cut...

Page 8: ...pt to re enter a half finished cut if the magnet has been turned off and the machine shifted in the interim This may destroy the cutter SWIVEL BASE The swivel base allows the drill to be precisely positioned under difficult circumstances To use first position the magnet base in the desired position and turn magnet on Loosen the 2 Swivel Lock Tabs then swivel the machine body into the desired posit...

Page 9: ...wn for low speed It may be necessary to turn the arbor slightly in order for the gears to mesh properly Follow the recommended speed ranges on the cutting speed chart to set the proper speed and gear range CAUTION Ensure that that gears engage fully CAUTION ALWAYS ensure that the machine is fully stopped before attempting to change gears NEVER change gears on a running machine GEAR CHART GEAR NO L...

Page 10: ...NG SPEEDS The type of material to be drilled its hardness and thickness will all greatly affect the recommended cutting speed See the chart below for general guidelines for cutting speeds Use the formula to determine the recommended RPM for the diameter of annular cutter being used RECOMMENDED SURFACE SPEEDS Note work materials which have been flame cut will be heat treated in the affected area Th...

Page 11: ...at there is no binding anywhere throughout the stroke NOTE A pilot hole may be necessary when drilling with larger twist drills If an MT2 twist drill is used it may not be necessary to remove the arbor support bracket CHUCK If an MT2 chuck adaptor chuck are used then the bracket must be removed To replace see the instructions above under ARBOR SUPPORT BRACKET REPLACEMENT REVERSING SWITCH The rever...

Page 12: ... chart for the size of tap used 2 Begin with forward direction of rotation with standard right hand threads Opposite with left hand threads 3 Allow the tap to determine the feed rate A light touch on the feed handle is all that is needed once it is started in the hole 4 When the desired thread is tapped hit the red motor stop switch Allow the machine to come to a full stop Then reverse direction a...

Page 13: ...S The carbon brushes are a normal wearing part and must be replaced when they reach their wear limit Caution Always replace the brushes as a pair To replace 1 Remove the 4 screws and remove the motor tail cover 2 Using pliers rotate the brush spring out of the way and slide the old carbon brush out of the brush holder 3 Unscrew the screw to remove the brush lead The old carbon brush may now be lif...

Page 14: ...ance it means that it is shorted If one of the coils has infinite resistance it means that the circuit is broken If either coil has a problem the magnet must be replaced A faulty magnet may also cause damage to the rectifier Also check the rectifier when replacing a faulty magnet see below CHECKING THE RECTIFIER Qualified technicians only The rectifier takes the AC household current and converts i...

Page 15: ...TE WHITE YELLOW BLACK RED WHITE YELLOW REVERSING SWITCH F R RIGHT STATOR MOTOR SWITCH 14 24 13 23 MAGNET SWITCH AC MAGNET BASE RED BLACK ELECTRONIC BOARD BROWN BLUE YELLOW YELLOW BLUE BLUE RECTIFIER EMC RED BLACK BRUSH HOLDER BRUSH HOLDER LEFT ...

Page 16: ... 120 81 82 83 OPTIONAL 134 NO 01 142 V1 3 78 106 104 105 49 57 103 107 108 92 132 70 78 77 76 66 60 61 65 64 130 13 72 71 109 111 112 113 115 117 118 29 49 96 75 74 102 101 06 07 08 09 10 11 08 12 10 09 14 15 28 45 59 62 63 66 67 69 73 79 80 84 85 86 86 87 88 89 90 91 93 93 94 95 97 98 100 6 100 5 100 3 100 4 66 116 135 68 100 2 110 114 133 129 136 49 137 RECTIFIER EMC RECTIFIER 140 139 138A 139 1...

Page 17: ...REW M5 x 16 1 142 FIXING SCREW M4 x 8 2 NO Parts Name Q TY 1 INTERNAL CIRCLIP R 19 1 2 ARBORWASHER Ø10 x Ø18 5 x 0 8 1 3 O RING Ø12 x Ø20 x 4 1 4 COOLANT SEAL 1 5 SPRING Ø1 2 x Ø10 1 x Ø12 5 x 12T x 85L 1 6 SET SCREW M10 x 7 x P1 5 1 7 ARBOR MT2 1 8 EXTERNAL CIRCLIP S 35 2 9 SPACER Ø35 2 x Ø55 x 0 5 2 10 OIL SEAL Ø35 x Ø47 x 7 2 11 COOLANT FEED RING 1 12 STOP BAR 67 5L 1 13 COOLANT CONNECTOR 1 14 ...

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