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Table of contents for the manual
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Page 1
Operating Instructions and Parts Manual Heavy-Duty Mortiser Model 720HD WMH TOOL GROUP, Inc. 2420 Vantage Drive Elgin, Illinois 60124 Part No. M-1791309 Ph.: 800-274-6848 Revision B 7/07 www.wmhtoolgroup.com Copyright © 2007 WMH Tool Group This Manual is Bookmarked[...]
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Page 2
2 Warranty and Service WMH Tool Group, Inc., warrants every product it se lls. If one of our tools nee ds service or repair, one of our Authorized Service Centers lo cated throughout the United States can giv e you qu ick service. In most cases, any of these WMH Tool Group Authorized Servic e Centers can authorize warranty repair, assist you in obt[...]
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3 Table of Contents Table of Contents .............................................................................................................. ............................ 3 Warning ........................................................................................................................ ................................. 4 Intro[...]
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Page 4
4 Warning 1. Read and understand the entire o wner's manual before attemptin g assembly or operation. 2. Read and understand the warnings posted on the m a chine and in this manual. Failure to comply with all of these warnings may cause seri ous injury. 3. Replace the warning labels if they become obscu red or removed. 4. This mortiser is desi[...]
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Page 5
5 21. Maintain a balanced stance at all times so that y ou do not fall or lean ag ainst the auger and chisel o r other moving parts. Do not overreach or use exce ssive force to perform any machine operatio n. 22. Use the right tool at the correct speed and feed rate. Do not force a tool or attachment to do a job for which it was not designed. The r[...]
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Page 6
6 Introduction This manual is provided by WMH T ool Group, In c. covering the safe operation and maintenance procedures for a Model 7 20HD Heavy-Duty Mortiser. Th is manual contains in structions on installation, safety precautions, general operating procedures, ma intenance instructions and parts breakdown. Thi s machine has been designed and cons[...]
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Page 7
7 Unpacking Remove all crating and plastic from around the Mortiser. Check for ship ping damage; report any damage immediately to your distrib utor and shipping agent. Do not discard any shipping material until the Mortiser i s assembled and running properly. Open the cabinet rear d oor and remove any boxes and acce ssory items. Compare these with [...]
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8 Assembly Tools required for assembly forklift or hoist with straps/slings 14mm wrench (provided) 4 and 6mm hex wrenches (provided ) 1. Remove the four screws that secure the Mortiser to the wood pallet, using a 14mm wrench. 2. With a fork lift or hoist, lift the machine off the pallet and into its desired location. 3. The Mortiser should be locat[...]
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Page 9
9 Installing Bushing, Chisel and Auger 1. The mortiser should b e disconnected from power source. 2. Open the chuck acce ss cover (A, Figure 3). 3. Insert a bushing (B, Figure 3) into the hole with the bushing’s hole facing the front toward the set screw (C, Figure 3). NOTE: The Mortiser is sh ipped with the 5/8” bushing pre-installed.) 4. Tigh[...]
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10 This machine must be grounded. In the event of a malfunction or breakdown, groun ding provides a path of least resistan ce for electric current to reduce the risk of electric shock. Improper connection of the equipment- grounding conductor can re sult in a risk of electric shock. The conductor, with insulation having an outer surface t hat is gr[...]
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11 Adjustments Squaring Table To Chisel 1. Place a square upon the table and aga inst the chisel, as shown in Figure 6. 2. If the table a nd chisel are not perpendicular to each other, loosen the table’s stud with the attached hex wrench (A, Figure 6). 3. Loosen the locking handle (B, Figure 6) and adjust the table until the table and chi sel are[...]
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Page 12
12 Chuck Extension Adaptor The provided Chuck Extension Adaptor is use d to lower the chuck for use with after-market chisels (chisels other tha n those supplied with your machine) that may require a spacer due to varying lengths in shanks. 1. To install the adaptor, first remove the chisel and auger. 2. It may be necessary to remove the bushing to[...]
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Page 13
13 Lateral (X Axis) Use the handle (A, Figure 12) to move the head right or left. The lateral stops should be set in accordance with the length of the mortise cut (see “Setting Lateral Stops”). Up/Down (Z Axis) Handle B, Figure 12. Fo r war d / B a c k wa r d (Y A xi s) Loosen the Y-Axis locking han dle (shown in Figure 18) and move the handle [...]
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Page 14
14 Chisel Parallel to Workpiece For accurate mortise cuts, the chisel must be parallel to the workpiece. The workpiece sho uld be cut square for this adjustment to be accurate. Check and adjust this parallelism as fol lows: 1. Move the head forward far enough that the workpiece can be inserted between f ence and chisel. 2. Slightly loosen the set s[...]
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15 Gib for Front-to-Back Mov ement 1. Remove the two screws on the pleated dust cover (F, Figure 18) and move the dust cover out of the way. 2. Loosen the three hex nuts (G, Figure 18) with a 10mm wrench. 3. Turn the three set screws (H, Figure 18) with a 3mm hex wrench, until play is eliminated on the gib (J, Figure 18). 4. Re-tighten the three he[...]
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16 Operation General operating procedure: 1. Position workpiece on table and secu re with clamp. 2. Set depth stop. 3. For late ral cuts, adjust positive stop s according to length of cut. 4. Position head front-to-back and laterall y for the first cut. If making a lateral cut, make sure the Y-axis locking handle is tightened. 5. Turn on the machin[...]
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Page 17
17 Sharpening Chisel and Auger The chisel and auger sh ould be kept sharp for best performance. If cutting operatio ns require excessive force, the chis el and/or auger are probably dull and should be sharpened. Blunt edges will give inaccurate mortises and can lead to overheating and breaka ge of chisel or auger. If chisel and auger are badly worn[...]
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18 Troubleshooting Trouble Probable Cause Remedy No incoming p ower. Check all pl ug connectio ns. Fuse blown, or circuit breaker tri pped. Replace fuse, or reset ci rcuit breaker. Cord damaged. Replace cord. Mortiser will not start. Motor bad. Contact WMH technical service. Extension cord too light or too long. Replace with adequate si ze and leng[...]
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19 720HD Heavy Duty Mortiser[...]
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Page 20
20 Parts List: 720HD Heav y Duty Mortiser Index No. Part No. Description Size Qty 1 ............... 720HD-101 ............... Stand .................................................................... .............. ...................... 1 1 ............... 720HD-101 ............... Stand ...........................................................[...]
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Page 21
21 57 ............. 720HD-157 ............... Cylinder Head ...................................................... ..................... ............... 2 58 ............. 720HD-158............... Cylinder ................................................................ ................ .................... 1 59 ............. 720HD-159 ............[...]
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Page 22
22 116 ........... 720HD-1116 ............. Allen Wrench ........................................................ ...................... .............. 1 117 ........... TS-1514031 ............. Flat Head Socket Screw ...................................... M6x20 ......................... 2 118 ........... 720HD-1118 ............. Cover.............[...]
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Page 23
23 Electrical Connections[...]
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Page 24
24 WMH Tool Group, Inc. 2420 Vantage Drive Elgin, Illinois 60124 Phone: 800-274-6848 www.wmhtoolgroup.com[...]