Instruction/ maintenance manual of the product 720HD Powermatic
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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.
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.
3 Table of Contents Table of Contents .............................................................................................................. ............................ 3 Warning ...............................................................
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.
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.
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.
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.
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.
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).
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.
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).
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.
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”).
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.
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).
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.
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.
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.
19 720HD Heavy Duty Mortiser.
20 Parts List: 720HD Heav y Duty Mortiser Index No. Part No. Description Size Qty 1 ............... 720HD-101 ............... Stand .................................................................... .............. ...................... 1 1 ........
21 57 ............. 720HD-157 ............... Cylinder Head ...................................................... ..................... ............... 2 58 ............. 720HD-158............... Cylinder .............................................
22 116 ........... 720HD-1116 ............. Allen Wrench ........................................................ ...................... .............. 1 117 ........... TS-1514031 ............. Flat Head Socket Screw .................................
23 Electrical Connections.
24 WMH Tool Group, Inc. 2420 Vantage Drive Elgin, Illinois 60124 Phone: 800-274-6848 www.wmhtoolgroup.com.
An important point after buying a device Powermatic 720HD (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Powermatic 720HD yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Powermatic 720HD - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Powermatic 720HD you will learn all the available features of the product, as well as information on its operation. The information that you get Powermatic 720HD will certainly help you make a decision on the purchase.
If you already are a holder of Powermatic 720HD, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Powermatic 720HD.
However, one of the most important roles played by the user manual is to help in solving problems with Powermatic 720HD. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Powermatic 720HD along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
