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Operating Instructions and Parts Manual
Drum Sander
Model 22-44 Plus
shown with optional infeed-outfeed tables and open stand
WMH TOOL GROUP
2420 Vantage Drive
Elgin, Illinois 60123 Part No. M-649003K
Ph.: 800-274-6848 Revision C 5/06
www.wmhtoolgroup.com Copyright © WMH Tool Group
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WARRANTY AND SERVICE WMH Tool 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 States can give you quick service. In most cases, any of these WMH Tool Group Authorized Service Centers can authorize warranty repair, assist you in obtaining parts, or perform routine maintenance and major repair on your JET® tools. For the name of an Authorized Service Center in your area call 1-800-27
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Table of Contents Table of Contents ....................................................................................................................................3 Warning...................................................................................................................................................4 Introduction..............................................................................................................................................6 Specificatio
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Warning 1. Read and understand this entire manual before attempting assembly or operation. 2. Read and understand the warnings posted on the machine and in this manual. Failure to comply with all of these warnings may cause serious injury. 3. Replace the warning labels if they become obscured or removed. 4. This sander is designed and intended for use by properly trained and experienced personnel only. If you are not familiar with the proper and safe operation of a sander, do not use unt
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blahblahblah 21. Make your workshop child proof with padlocks, master switches or by removing starter keys. 22. Give your work undivided attention. Looking around, carrying on a conversation and “horse-play” are careless acts that can result in serious injury. 23. Maintain a balanced stance at all times so that you do not fall or lean against moving parts. Do not overreach or use excessive force to perform any machine operation. 24. Stand to one side of the conveyor and make sure no one
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Introduction This manual is provided by WMH Tool Group covering the safe operation and maintenance procedures for a JET Model 22-44 Plus Drum Sander. This manual contains instructions on installation, safety precautions, general operating procedures, maintenance instructions and parts breakdown. This machine has been designed and constructed to provide years of trouble free operation if used in accordance with instructions set forth in this manual. If there are any questions or comments, pl
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Features and Terminology The illustration below shows the major components and features of the 22-44 Plus Sander. These are referenced throughout the manual and will help to familiarize you with the operation and functions of the machine. Figure 1 7
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Unpacking Open shipping container and check for shipping damage. Report any damage immediately to your distributor and shipping agent. Do not discard any shipping material until the Drum Sander is assembled and running properly. Compare the contents of your container with the following parts list to make sure all parts are intact. Missing parts, if any, should be reported to your distributor. Read the instruction manual thoroughly for assembly, maintenance and safety instructions. C
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Assembling the Open Stand (Optional Accessory) (Refer to Figure 3. If further clarification is needed, consult the parts breakdown on page 35.) Tools required for Stand assembly: Ratchet wrench with 1/2” socket 1. Assemble legs (H) to outside of Short Rails (L) using carriage bolts (N) and flanged lock nuts (O). Finger tighten only. 2. Assemble Long Rail (K) on inside of legs and on top of Short Rails (L). Finger tighten only. NOTE: Flange of Long Rail (K) overlaps flange of Short Rail (L)
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Assembly Tools required for assembly: 1 Flat head screwdriver 1 Set of open-end wrenches 1 Set of Hex wrenches 1 Adjustable wrench Installing Drum Head The drum sander must be bolted down to a workbench or stand. If you purchased one of the JET stands, place the sander base on the stand and align the holes. Secure the sander to the stand using four 3/8” x 3/4” hex cap screws and four 3/8” flat washers. See Figure 4. Attach the handwheel (A, Figure 6) to the height adjustment
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Dust Cover To open the dust cover, push in on the knob (C, Figure 5) and lift. The latch can be adjusted using the screw behind it. Dust Collection Dust collection is mandatory for a safe work environment and extended abrasive life. The 22- 44 Plus is equipped with a 4” dust collection port at the top of the dust cover. It is designed to be used with standard 4” dust collection hose connected to a high volume dust collector (minimum 500 CFM), as shown in Figure 7. Figure 7 WMH Tool
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Successive windings of the strip should be flush with previous windings without any overlap. 5. Mark the trailing end of the strip where it crosses the right (inboard) end of the drum (Figure 11). 6. Remove the abrasive strip from the drum, and cut a taper as was done with the starting edge (see Figure 8). Note: The taper on the remaining roll can be used as the taper for the starting edge of the next strip to be cut. Figure 11 7. Rewrap the drum beginning at the left, as descr
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Grounding Instructions Electrical connections must be made by a qualified electrician in compliance with all relevant codes. This machine must be properly grounded to help prevent electrical shock and possible fatal injury. In the event of a malfunction or breakdown, grounding provides a path of least resistance for electric current to reduce the risk of electric shock. This tool is equipped with an electric cord having an equipment-grounding conductor and a ground
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Recommended Gauges (AWG) of Extension Cords Extension Cords Extension Cord Length * If an extension cord is necessary, make sure the cord rating is suitable for the amperage listed on 25 50 75 100 150 200 Amps the machine's motor plate. An undersize cord feet feet feet feet feet feet will cause a drop in line voltage resulting in loss < 5 16 16 16 14 12 12 of power and overheating. 5 to 8 16 16 14 12 10 NR The chart in Figure 17 shows the correct size cord to use based on cord len
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Conveyor Belt Tension and Tracking Conveyor belt tension adjustment may be necessary during the break-in period to compensate for belt stretching. IMPORTANT: The conveyor belt has been over- tensioned for the purpose of shipping. Before operating the sander, adjust the belt tension according to the following instructions! Tension. To adjust the tension of the conveyor belt, first adjust the take-up screw nut (A, Figure 20) using the attached wrench (B, Figure 20). Do this on both sides
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3. Loosen the conveyor take-up screw nuts (A, Figure 20) to relieve belt tension, and slide the driven roller fully inward. 4. Remove the four bolts that attach the conveyor table to the base. Lift up the conveyor table and remove it from machine. Avoid tearing the belt on any edges underneath the conveyor bed. 5. Install new belt, and re-install conveyor table. Take care not to damage the Trackers. Tension and track the new belt. NOTE: If the conveyor belt continually
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5. If the drum does not contact the thickness gauge to the same degree as the opposite end of the drum, alignment is necessary. To align the drum: 1. Loosen the four 3/8” hex cap screws – two front, two rear (A, Figure 22). This allows the entire drum carriage and shroud to be pivoted on two screws – one screw in front, one in back. 2. Lay the thickness gauge under the drum lengthwise. See Figure 23. Rotate the fine tune adjustment knob (B, Figure 22) until Figure 22 the drum co
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NOTE: Keep track of how many revolutions of the fine tune knob are needed to change drum alignment for wider (over 22”) sanding. When sanding narrow stock (less than 22”) loosen the four screws (Figure 22) and turn fine tune adjustment knob counterclockwise the same amount as the initial wide sanding so that drum is again parallel. Tension Roller Alignment The infeed and outfeed rollers are tensioned to provide downward pressure on the workpiece to prevent slippag
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Basic Operating Procedure 1. Repeat “Tension Roller Alignment” except raise the sanding drum only 1/4 turn of the 1. Set depth of cut. height adjustment handle. 2. Start dust collection system. 2. If both tension rollers are causing snipe then 3. Start drum. tighten all four hex nuts (E, Figure 24) at this 4. Start conveyor and select feed rate. position. 5. Feed stock through machine. 3. If only outfeed tension roller causes snipe, To feed stock through the sander, rest and hold
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Selecting SandSmart™ Feed Rates decreasing the depth of cut and run the stock through again. A faster feed rate allows faster sanding but fewer revolutions of the drum per inch of Also try a faster feed rate or less depth of cut if the stock you are working begins to show burn sanding. A slower feed rate provides more revolutions of the drum per inch of sanding to marks. With cherry, hard maple or other hardwoods, using a shallower depth of cut and a allow a greater depth of cut and smoo
