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Jet Tools J-7040 manual

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Table of contents for the manual

  • Page 1

    Operating Instructions and Part s Manual 10-Inch x 16-Inch Horizont al Band Saw Models: J-7020, J-7040 WHM TOOL GROUP , Inc. 427 New Sanford Road LaV ergne, T ennessee 30786 Part No. M-414472 Ph.: 800-274-6848 Revision A2 04/09 www .wmhtoolgroup.com Copyright © 2009 WMH T ool Group, Inc. Model J-7020 shown[...]

  • Page 2

    W arranty and Service WMH T ool Group, Inc., warrants every product it sells. If one of our tools needs service or repair , one of our Authorized Service Centers located throughout the United S tates can give you quick service. In most cases, any of these WMH T ool Group Authorized Service Centers can authorize warranty repair , assist you in obtai[...]

  • Page 3

    3 T able of Content s General S pecifications ............................................................................................................................... ......... 4 S pecifications ............................................................................................................................... ....................[...]

  • Page 4

    4 General S pecifications Model Stock Number J-7020 414472 J-7040 414478 The JET Models J-7020/J-7040 Horizontal Cut-Off Bandsaws are ruggedly built, precision machines de- signed for either wet or dry applications. The 2 HP motor along with the worm gear reduction drive train in Capacity 10" Round 10" x 10" Square 9" x 16"[...]

  • Page 5

    5 - Always follow instructions in Operating Instruc- tions and Parts Manual when changing acces- sory tools or parts. - Never modify the machine without consulting JET Corporation. Y ou - the Stationary Power T ool User - Hold the Key to Safety . Read and follow these simple rules for best results and full benefits from your machine. Used properly [...]

  • Page 6

    6 Safety Instructions on Sawing Systems 9. Always wear protective eye wear when operating, servicing, or adjusting machinery . Eyewear shall be impact resistant, protective safety glasses with side shields complying with ANSI Z87.1 specifica- tions. Use of eye wear which does not comply with ANSI Z87.1 specifications could result in se- vere injury[...]

  • Page 7

    7 Introduction This manual includes the operating and maintenance instructions for the JET 10-inch by 16-inch Cut Off Band Saw , Models J-7020/J-7040. This manual also includes parts listings and illustrations of replaceable parts. Operating Instructions Controls The operating controls for the saw are provided in a control panel on the left side of[...]

  • Page 8

    8 Raising/Lowering the Saw Head 1. Lift the saw head using the handle on the far left side of the saw head. 2. T o lower the saw head, press the green pushbutton on the right side of the control panel. 3. T o adjust the feed rate, adjust the feed rate control valve knob on the top of the saw head (see figure 3). 4. T o lower the saw head with power[...]

  • Page 9

    9 A minimum of three teeth should be on the work piece at all times for proper cutting. The blade and workpiece can be damaged if the teeth are so far apart that they straddle the workpiece. For very high production on cutting of special mate- rials, or to cut hard-to-cut materials such as stainless steel, tool steel, or titanium, you can ask your [...]

  • Page 10

    10 S t arting the Saw W ARNING: NEVER OPERA TE THE SA W WITHOUT BLADE COVERS IN PLACE AND SECURED. CAUTION: MAKE SURE THE BLADE IS NOT IN CON- T ACT WITH THE WORKPIECE WHEN THE MOTOR IS ST ARTED. DO NOT DROP THE SA W HEAD ON THE WORKPIECE OR FORCE THE SA W BLADE THROUGH THE WORKPIECE. 1. Raise the saw head. With the saw motor off, pull the red rele[...]

  • Page 11

    11 Coolant Flow CAUTION: THE COOLANT PUMP MUST BE SUB- MERGED BEFORE OPERA TING TO PREVENT DAM- AGE T O THE PUMP . 1. The blade guides are fitted with coolant fittings. Coolant is provided to the fittings through intercon- necting tubing. The coolant is dispensed directly onto the saw blade. 2. Adjust the coolant flow valves on the top, rear of the[...]

  • Page 12

    12 the wheel shoulder . Put a 6-inch length of paper between the blade and the wheel as shown in figure 1 1. The paper should not be cut as it p asses be- tween the wheel shoulder and the blade. 9. T urn the single hex adjustment screw a small amount. Repeat the insertion of the paper between the wheel shoulder and the blade until the paper is cut [...]

  • Page 13

    13 tion of the disk you have cut from the bar stock. Mea- sure at the top and bottom of the disk. The saw blade can be considered correctly adjusted when the variation measure is no more than 0.012 inch across the face of the disk. If you do not have a piece of 2-inch bar stock avail- able for a test cut, use a larger diameter test piece rather tha[...]

  • Page 14

    14 1. Ball bearings: the bearings are lubricated and sealed—periodic lubrication is not required. 2. Blade guide bearing: the bearings are lubricated and sealed—lubrication is not required. Inspect periodi- cally . 3. Idler wheel bushing: the bearings are lubricated and sealed—lubrication is not required. Inspect periodi- cally . 4. Lead scre[...]

  • Page 15

    15 Adjusting the Blade Guides The cut-off saw has adjustable blade guide supports (see figure 17). The blade guide supports allow you to set the blade guides for varying widths of workpieces. T o make accurate cuts and prolong blade life, the blade guide supports should be set to just clear the workpiece to be cut. Figure 17: Blade guide supports 1[...]

  • Page 16

    16 Replacement of Guide Bearings Referring to Firgure 18, remove the cap screw from the bearing being replaced. Separate the bushing and cap screw from the bearing. Discard the bearing. NOTE: There is a light press fit between the bearing and the bushing. 2. Install bushing in replacement bearing. Install cap screw through bushing and into guide su[...]

  • Page 17

    17 Figure 21: Model J-7020 cut-off saw wiring diagram 4. Close the blade cover and secure with four knobs. Electrical Observe the following when connecting to the power source. (The cut-off saw wiring diagrams are provided in Figures 17 and 18.) W ARNING: JET RECOMMENDS THA T ANY WIRING INVOL VING HARD WIRING OF THE SA W TO A BRANCH, OR ANY CHANGE [...]

  • Page 18

    18 Figure 24: Model 7040 cut-off saw wiring diagram Figure 25: Connection diagram for 3ph motor[...]

  • Page 19

    19 T roubleshooting Fault Excessive blade breakage Premature blade dulling Bad cuts (out-of-square) Bad cuts (rough) Probable cause 1. Material loose in vise. 2. Incorrect speed or feed. 3. T eeth too coarse for material. 4. Incorrect blade tension. 5 . Saw blade is in contact with workpiece before the saw is started. 6. Blade rubs on the wheel fla[...]

  • Page 20

    20 Blade is twisting Unusual wear on side/back of blade T eeth missing/ripped from blade Motor running too hot No coolant flow Excessive speed reducer noise/ vibration 1. Decrease feed pressure. 2. Decrease tension on blade 1. Replace blade guides. 2 . Adjust blade guide bearings. 3 . Tighten blade guide bearing bracket. 1. Use blade with finer too[...]

  • Page 21

    21 Exploded V iew - Base[...]

  • Page 22

    22 Parts List - Base 21-1 5519494 Set Screw (5/16"x1/2") 1 2 2 J-5712481 Lead Screw Bracket 1 2 3 5712491 Screw (5/16" x 1/4") 2 23-1 TS-0720081 Spr i n g Wa s h e r ( 5/ 1 6 " ) 2 23-2 TS-0680031 Washer (5/16") 2 2 4 571251 1 Vise Lead Screw 1 24-1 5519710 Key (5x5x20mm) 1 2 4 A 5514806 Collar with Pin 1 2 5 5712521 L[...]

  • Page 23

    23 Parts List - Base ITEM P ART NO. NO. DESCRIPTION QTY 46-1 TS-0051021 Hex Cap Screw 4 (5/16" x 5/8") 46-2 TS-0720081 S pring Washer (5/16") 4 46-3 TS-0680031 Washer (5/16") 4 4 7 5712761 Screw (3/8" x 1") 3 4 8 5712771 S pring W asher (3/8") 3 4 9 5712781 Locking Handle 1 50 5712791 Washer (1/2") 1 51 551 1[...]

  • Page 24

    24 194 5713251 Screw (1/4" x 3/8") 4 195 J -5713261 Control Column 1 196 5713271 Screw (1/4" x 3/4") 2 196-1 5519510 Nut (1/4") 2 197 J-5713281 Swivel Bushing 1 1 9 8 J-5713291 Control Box 1 1 9 9 571331 1 Control Panel 1 2 0 0 5713321 Screw (3/16" x 1/4") 6 2 0 1 5713331 Electric Lamp 1 2 0 2 5713341 St art Switc[...]

  • Page 25

    25 Exploded View - Head[...]

  • Page 26

    26 100-3 TS-0680031 Washer (5/16") 1 100-4 TS-0720081 S pring Washer (5/16") 2 100-5 5519680 Hex Cap Screw 1 (5/16" x 1-1/4") 100-6 5519506 Hex Cap Screw 1 (5/16" x 1/2") 100-7 5519681 B u s hi n g ( 9m m ) 2 100-8 TS-0680031 Washer (5/16") 2 102 5713631 Washer (5/16") 2 103 5713661 Washer (1/4") 1 104 5[...]

  • Page 27

    125A 5717138 Eccentric Shaft Assy . 2 125B 5517142 Center Shaf t Assy . 2 126 5713871 Blade Guide Tung. Carb. 2 126-1 5713661 Washer (1/4") 8 126-2 5713651 S pring W asher (1/4) 4 126-3 5519508 Hex Socket Cap Screw 4 (1/4" x 1") 127 5713881 Elevating Block 2 127-1 5519508 Hex Socket Cap Screw 4 (1/4" x 1") 127-2 5713651 S p[...]

  • Page 28

    230 5713941 Screw (5/16 x 1-3/4) 4 23 1 5712881 S pring W asher (1/2") 4 232 5517141 Eccentric Shaft Bushing 2 233 5517140 Center Shaft Bushing 2 234 5713861 Ball Bearing (6201ZZ) 8 235 5713761 Washer (1/2") 4 236 5519696 Arm S top 1 236-1 571 1091 Nut (1/2") 1 ITEM P ART NO. NO. DESCRIPTION Q TY 28[...]

  • Page 29

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  • Page 32

    32 WMH T ool Group, Inc. 427 New Sanford Road LaV ergne, T ennessee 30786 Ph: 800-274-6848 www .wmhtoolgroup.com[...]