background image

The machine doesn’t run when the power switch is turned ON.

1.

The power cord is not plugged in.

2.

The chuck spindle may be bound by the workpiece, cutting bit or fixture.

3.

If there is a surge in the current, the circuit breaker may have opened. Press the circuit breaker back in,
if it is in the open position.

4.

The belt tension may not be tight. Adjust the tension lever and lock it in place.

The spindle bearing is very hot.

1.

There is insufficient lubrication. Turn off the power, and check the bearing for lubrication. If necessary,
apply a medium weight bearing grease.

2.

The spindle bearing is worn, or is fixed too tight. Turn off the power, unplug the electrical connection,
and rotate the spindle by hand. Be sure it turns freely. If not, check the bearing adjustment. If you feel
uneveness in the bearing, you will have to replace it.

3.

The spindle has been turning at high speed for a long time. After long use, turn the machine off for a
while to give it a rest, and allow it to cool off.

The table travel is not balanced

1.

The spindle taper gap is too wide. Adjust the arbor bolt properly.

2.

One of the leaf bolts may be loose. Check and tighten them if necessary.

3.

The feed is too deep. Reduce the depth of the cut, and make several passes to reach the required depth.

4.

The gib strip may be out of adjustment. Check it and adjust it if necessary.

There is a vibration,and the cut is not smooth

1.

The spindle bearing may be improperly adjusted or is worn. Check it and adjust or replace as
necessary.

2.

The spindle is loose up and down. Check the adjustment of the two inner bearing covers. Adjust them
so there is no free play in the taper bearing, and the bearing turns freely. Tighten them against each other
to save this adjustment.

3.

The gap of the taper sliding plate is too wide. Adjust the bolt tension.

4.

The chuck is loose. Tighten the chuck.

5.

The drill bit or cutter is dull. Sharpen or replace it. Be sure to use cutting fluid to preserve tool life.

6.

The workpiece is not held firmly. Check the clamps or vise you are using, and assure that the workpiece
cannot move.

The workpiece is not machined accurately

1.

A heavy workpiece may be out of balance. Check to see that heavy workpieces are held in balance.
Out of balance pieces may shift when being machined.

2.

A hammer has been used on the workpiece. Never strike the workpiece with a hammer.

3.

The table may not be level. Check the table with a spirit level to be sure it is level both side to side and
front to back.

4.

The machine may not be stable in the floor. Check to be sure the machine is firmly mounted to the floor.

Page 11 SKU # 42976

Содержание 42976

Страница 1: ... s Copyright 2000 by Harbor Freight Tools All Rights Reserved No portion of this manual or any artwork contained herein may be reproduced in any manner shape or form without the express written consent of Harbor Freight Tools For technical questions and replacement parts please call 1 800 444 3353 www HarborFreight com ...

Страница 2: ...willneedthemanualforthesafetywarningsandcautions assemblyinstructions operatingprocedures maintenanceprocedures troubleshooting partslist anddiagram Keepyourinvoicewiththismanual Write the invoice number on the inside of the front cover Keep both this manual and your invoice in a safe dry place for future reference For fine adjustment use a dial test indicator not included mounted either to the ta...

Страница 3: ...priate workclothing 8 USE EYE EAR AND BREATHING PROTECTION Always wear ANSI approved impact safety goggles if you are producing metal filings or wood chips Wear an ANSI approved dust mask or respirator when working around metal wood and chemical dusts and mists Use ANSI approved ear protection when working in a loud or noisy environment 9 DO NOT ABUSE THE POWER CORD Protect the power cord from dam...

Страница 4: ...lified technician SPECIAL WARNINGS WHEN USING THIS DRILLING MILLING MACHINE Using this machine may create special hazards Take particular care to safeguard yourself and those around you Electrical Safety Never operate any tool if there is an electrical hazard Never operate an electrical tool in wet conditions Never operate a tool with an improper electrical cord or extension cord Never operate an ...

Страница 5: ...tor 13 Drive Belt Cover 14 Motor Pulley 15 TransferPulley 16 DrivePulley 17 Drive Belt Tension Lever 18 DriveBeltTensionFixingBolt 19 HeadRotationControlLever 20 HorizontalControlWheels 2 8 28 4 13 14 15 16 17 18 5 12 19 1 9 20 6 7 3 2 3 10 11 9 23 25 20 22 26 27 24 21 26 25 21 Cross Feed Control Wheel 22 Butterfly Table Lock Bolts 4 23 T Slots 2 24 Tray 25 Mounting Bolts 4 26 Table Travel Stops 2...

Страница 6: ...herently top heavy Before moving the machine be sure the head is fixed on the column Before moving lower the head as much as possible tolowerthecenterofgravity Whenmovingthemachinebe carefultokeepitbalanced donotallowittotoppleover 3 To set the machine on a solid concrete foundation it s advisable to apply a little grout to touch up any uneveness in the concrete in order to get a solid foundation ...

Страница 7: ...ightToolscansupplyUL listed and outdoor rated cords in most AWG ratings as needed AWG RATING CHART CORD LENGTH 25 50 75 100 125 150 175 200 AMPS AWG AWG AWG AWG AWG AWG AWG AWG 0 10 0 18 18 16 16 14 14 12 12 10 1 13 0 16 16 14 14 14 12 12 12 13 1 15 14 14 12 12 12 12 12 15 18 14 12 12 12 12 12 GROUNDAGE VOLTAGE WARNING Common household current is 110 120 volts As long as the outlet used with the P...

Страница 8: ... have a self centering MT 2 taper 1 Wipe a small amount of grease onto the spindle to prevent corrosion 2 Place the chuck onto the spindle pressing it upward with a twisting motion Tap the chuck gently home usingasoft facedmallet 3 Ifdesired finetunethechuckusingadialindicator Todothis mountadialindicatorfirmlyonthetable Place the dial indicator pointer in contact with the chuck and adjust the dia...

Страница 9: ...orkpiece is properly attached to the table and alignedwiththedrillbit Adjustalignmentusingthe vertical and cross table control wheels The table can belockedintopositionusingthefourButterflyLock Bolts 22 which are located under the Table on therightside andabovetheCross FeedControlWheel Adjusting the Head 1 To raise or lower the head loosen the Vertical Head Lock 4 Use the Head Crank 3 to raise or ...

Страница 10: ...ed by adjusting the position of the Table Stops 26 Changing Machine Speed 1 Turn the power off and unplug the power cord 2 To select the proper speed loosen the Drive Bolt TensionFixingBolt 18 thenloosentheDriveBelt Tension Lever 17 3 Open the Drive Belt Cover 13 4 Followingthespeedchartwhichismountedonthe front of the head position the two drive belts on the pulleys to achieve the desired speed 5...

Страница 11: ...ke several passes to reach the required depth 4 The gib strip may be out of adjustment Check it and adjust it if necessary There is a vibration and the cut is not smooth 1 The spindle bearing may be improperly adjusted or is worn Check it and adjust or replace as necessary 2 The spindle is loose up and down Check the adjustment of the two inner bearing covers Adjust them so there is no free play i...

Страница 12: ...uidleftonthemachine 5 Lubricategeared movingandmachinedmetalparts Applylightgreaseoroiltoallunpaintedmetalto prevent corrosion 6 Cover the machine to prevent dust or dirt contamination when not in use Daily Maintenance 1 Checkthetightnessofthemountingboltsholdingtheheadinplace 2 If overheating is observed or unusual noises are produced stop the machine immediately to check for lackoflubrication fa...

Страница 13: ...lar 1 26 Handle 1 27 Screw Bracket 2 28 Dog 2 29 Screw 2 30 Support 1 31 Screw 4 32 BallBearing 1 33 ScaleRing 1 P N Description Quantity 34 HandleWheel 1 35 Washer 1 36 Nut 1 37 HandleCollar 1 38 Handle 1 39 Cover 1 40 Screw 3 41 Screw 2 42 Handboard 2 43 Pin 2 44 Crosswise Lead Screw 1 45 ShortGib 1 46 AdjustmentScrew 1 47 BallBearing 1 48 Support 1 49 Screw 4 50 BallBearing 1 51 ScaleRing 1 52 ...

Страница 14: ...Page 14 SKU 42976 42976 DRILL MILL MACHINE TABLE AND BASE PARTS DIAGRAM Please refer to Parts List on Page 13 Note Parts for optional Stand are shown butnotincludedwiththeDrill Millmachine ...

Страница 15: ...crew 1 98 Nut 4 99 Washer 4 100 Motor Base 1 101 Motor 1 102 Screw 4 103 MotorPulley 1 P N Description Quantity 104 Headless Set Screw 1 105 Nut 1 106 Nut 1 107 SlideBar 2 108 PulleyCover 1 109 Washer 4 110 Screw 4 111 V Belt 1 112 Nut 1 113 SpindlePulley 1 114 SpringSleeve 1 115 RetainingRing 1 116 BallBearing 1 117 Collar 1 118 BallBearing 1 119 RetainingRing 1 120 Nut 1 121 Washer 1 122 BallBea...

Страница 16: ...Page 16 SKU 42976 42976 DRILL MILL MACHINE HEAD PARTS DIAGRAM Please refer to Parts List on Page 15 ...

Отзывы: