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Operating Instructions and Parts Manual
Drum Sander
Model 22-44 Pro
Deluxe model shown (with casters and infeed/outfeed tables)
WMH TOOL GROUP
2420 Vantage Drive
Elgin, Illinois 60123 Part No. M-638003
Ph.: 800-274-6848 Revision A 4/06
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 Pro 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, ple
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Features and Terminology The illustration below shows the major components and features of the 22-44 Pro 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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1 Handwheel – D Unpacking 1 Handwheel Knob – E 4 Legs – F Open shipping container and check for shipping damage. Report any damage immediately to 4 Leg Glides – G your distributor and shipping agent. Do not 8 Hex Head Bolts, 3/8”x1-1/2” – H discard any shipping material until the Drum 4 Hex Head Bolts, 3/8”x1” – J Sander is assembled and running properly. 12 Flanged Lock Nuts, 3/8” – K Compare the contents of your container with the 20 Flat Washers, 3/8” – L following part
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Assembly Tools required for assembly: Hoist, forklift, or one or more assistants Wrenches – 9/32”, 1/2” , 9/16” Hex wrenches – 4mm, 1/8” Install Stand Legs The sander is heavy; use caution when lifting. 1. Raise the sander from the floor using a Figure 3 forklift, hoist or an assistant. (Place hoist straps through the carriage arm or below the table mounting brackets. If using a forklift, fork below the table mounting brackets. See Figure 1, page 7.) 2. Position the assembly
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2. Re-tighten the set screw with your fingers until it only lightly touches the column tube. 3. Hold the set screw in position with the hex wrench, and re-tighten the hex nut. Install Handwheel Mount the handwheel to the top of the height adjustment screw (Figure 6). Align one of the set screws with the flat on the height adjustment screw, and tighten both set screws. Install the knob to the threaded hole in the handwheel, and tighten the hex nut against the handwheel. Install Conve
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6. Position the table (H, Figure 9) over the brackets, and install four 1/4”x3/4” square neck bolts (J), 1/4” flat washers (K), and 1/4” hex nuts (L). Do not fully tighten yet. 7. The table should be positioned even with or slightly below the conveyor belt surface. To check position, place a level or straight edge near the left side of the conveyor and extending out over the table, as shown in Figure 10. Raise the conveyor table until the drum holds the straight edge in place, and a
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Installing Abrasives An 80-grit abrasive strip is already installed on the drum of your sander. Page 28 offers information on the types of abrasive and their recommended uses. Proper attachment of the abrasive strip to the drum is critical to achieving top performance from your drum sander. Abrasive strips do not have to be pre-measured. The end of the roll is Figure 11 first tapered and attached to the left (outboard) side of the drum. Then the strip is wrapped around the drum, an
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8. You can use your fingers to work the infeed take-up fastener, but it will be more convenient to use the TUFTool supplied with your sander. Hold the TUFTool with the red end pointing away from you (Figure 15) and insert its hook into the outside hole of the fastener lever (see Figure 17). 9. Lift the lever with the TUFTool, pulling the lever up until it touches the inside of the drum. 10. Turn the TUFTool counterclockwise and lower it onto the abrasive strip, making sure it is hold
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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 g
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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 20 shows the correct size cord to use based on cord len
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• The set screws in the table supports have been loosened and readjusted (see page 9). • The sander has been leveled (page 11). • Moving parts of the height adjustment mechanism are well lubricated, including miter gears, columns, and threaded adjusting screws. If the table height mechanism still does not operate smoothly, try the following: 1. Further loosen the set screws on the front of the table supports (see Figure 5). 2. Lubricate thoroughly by applying penet
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6. If one height adjustment screw is loose, remove the miter gear from the transfer rod on that side. Turn down the threaded height adjustment screw rod until it is snug. Make sure both sides are snug on top and retaining rings under the adjustment screw supports are in place. Re-install the miter gear. Loosen the set screws in the table supports and test for smooth operation. Depth Gauge Calibration The depth gauge (A, Figure 25) measures the distance between the conveyor table and
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3. Insert the gauge between the drum and conveyor bed at one end of the drum (Figure 26). Raise the conveyor bed while slowly rotating drum by hand until the drum lightly contacts the thickness gauge. 4. Move thickness gauge to the opposite end of the drum. If the drum does not contact the thickness gauge equally at both ends of the drum, alignment is necessary. See below. Initial Drum Alignment 1. Release v-belt tension from motor by loosening pinch bolt of motor supp
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2. Slightly loosen bearing bolt knobs. (An internal tooth lock washer is placed under the head of each bearing bolt to prevent tension rollers from dropping out of position if knobs are loosened slightly. If tension rollers do drop, simply raise to a position equal to that of the inboard end of the drum and slightly tighten knobs.) 3. With the bearing bolt knobs slightly loosened, raise drum adjustment lever to raise the outboard end of drum, or lower drum adjustment l
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Adjusting the take-up screw nuts on either side of the conveyor allows belt tracking adjustments to be made without affecting belt tension. NOTE: Adjust take-up screw nuts only 1/4 turn at a time. Then allow time for the belt to react to the adjustments before proceeding further. Try to avoid over adjustments. Trackers The sander comes equipped with “Trackers”, ceramic guides that reduce the amount of adjustments needed to keep the conveyor belt tracked (centered) on the
