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24

Operation 

Before using your drum sander, review the 
previous pages in this manual on initial set-up 
and adjustment. In this section, you will learn 
how to operate the machine. Make sure an 
abrasive strip is mounted and a dust collection 
system is connected. 

Basic Operating Procedure 

1.  Set depth of cut. 

2.  Start dust collection system. 

3. Start 

drum. 

4.  Start conveyor and select feed rate. 

5.  Feed stock through machine. 

To feed stock through the 22-44 Pro, rest and 
hold the board to be sanded on the conveyor 
belt, allowing the conveyor belt to carry the 
board into the drum. Once the stock is halfway 
through, reposition yourself to the outfeed side 
of the machine to receive and control the board 
as it exits. 

Setting Depth of Cut 

Adjusting the drum sander for the proper contact 
between the abrasive and the stock determines 
the mechanical depth of cut. 

It may take some experimentation to determine 
the proper depth of cut, given the variables of 
abrasive grit, type of wood, and feed rate. For 
best results, use scrap wood to practice sanding 
and to develop skill and familiarity with the 
machine before doing finish work. 

A combination of several variables will 
determine the proper depth of cut to use, 
including the following: 

1.  Abrasive type and grit size. 

2.  Width of the piece being processed. 

3.  Hardness of the piece. 

4.  Feed rate of the conveyor belt. 

Establishing Proper Drum Height 

The depth of cut is controlled by the table height 
adjustment handle which raises or lowers the 
conveyor table under the drum. 

A good rule of thumb when sanding with grits 
finer than 80 is to place the stock to be sanded 
under the drum and raise conveyor table until 
the drum contacts the stock. Drum should still 
rotate by hand. Without changing drum 
height,
 finish feeding the stock under the 
sander.  

Start sanding drum and sand the stock at that 
same position. 

  Do not start drum while in 

contact with stock! 

For sanding with grits coarser than 80, you can 
raise the conveyor table slightly. 

Always maintain control of stock. Through 
practice you will learn the proper depth of cut 
considering the variables above. 

Selecting Feed Rates 

Selecting proper feed rate is an essential step 
after first adjusting for depth of cut. The variable 
feed rate controller of the conveyor belt adjusts 
the load on the machine; it can be infinitely 
adjusted within its specified range for maximum 
operating performance. A faster feed rate allows 
faster sanding but fewer revolutions of the drum 
per inch of sanding. A slower feed rate provides 
more revolutions of the drum per inch of sanding 
to allow a greater depth of cut and smooth 
sanding. 

Begin experimenting with the feed rate set at 
about 40% to 50% of maximum. The best feed 
rate will depend on a number of factors, 
including type of stock, grit and depth of cut 
used, and whether the stock is fed directly in line 
with the conveyor bed or at an angle. If the drum 
motor is lugging down, if the conveyor belt is 
slipping, or if you observe a ripple effect on the 
stock, slow down the feed rate. If the finish is 
smooth and the machine is not overworking, you 
can experiment with using a faster feed rate. 

Also try a faster feed rate or less depth of cut if 
the stock you are working begins to show burn 
marks. With cherry, hard maple or other 
hardwoods, using a shallower depth of cut and a 
faster feed rate will help minimize burn marks. 
Slightly angling the stock as it is fed into the 
machine will also help prevent burning the stock. 

Because of the wide range of variables, it is 
important to experiment with your specific 
conditions and make adjustments to achieve the 
optimum feed rate. If problems occur, first 

 

check and adjust the feed rate, referring to the 
“Troubleshooting” sections in this manual. 

Tips for Maximum Performance 

The versatility designed into the 22-44 Pro drum 
sander allows it to be used for a wide variety of 
tasks that will boost the return on your 
investment. For example, its capabilities range 
from taking the place of a planer to thickness 
rough stock, to speeding up fine sanding work 
often done with slower, dust-generating hand 
sanders.

Summary of Contents for SandSmart 22-44 Pro

Page 1: ...l 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 wmht...

Page 2: ...ostage prepaid to a location designated by us For the name of the location nearest you please call 1 800 274 6848 You must provide proof of initial purchase date and an explanation of the complaint mu...

Page 3: ...ment 17 Conveyor Belt Tension and Tracking 19 Trackers 20 Conveyor Belt Replacement 20 Tension Roller Adjustment 21 Adjusting Table Supports 21 Replacing V Belt 22 Rotating Drum Bearings 22 Replacing...

Page 4: ...nd chromium from chemically treated lumber Your risk of exposure varies depending on how often you do this type of work To reduce your exposure to these chemicals work in a well ventilated area and wo...

Page 5: ...best and safest performance Follow instructions for lubricating the machine and changing accessories 28 Always feed stock against the rotation of the drum 29 Keep your hands clear when feeding parts o...

Page 6: ...wmhtoolgroup com Specifications Model Number 22 44 Pro Stock Number 638003 Maximum Sanding Width in 44 2 passes Minimum Sanding Length in 2 1 4 Maximum Sanding Thickness in 4 Minimum Sanding Thickness...

Page 7: ...ogy 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...

Page 8: ...assembly maintenance and safety instructions Contents of the Shipping Container 1 Drum Sander with stand A 1 Conveyor Bed Assembly B 2 Assembly Fixtures C 1 Handwheel D 1 Handwheel Knob E 4 Legs F 4...

Page 9: ...en the flanged lock nuts securely making sure the legs remain in contact with the plywood 4 Lift the sander and remove the assembly fixtures 5 With the sander raised install the four leg glides or opt...

Page 10: ...d bolts 3 8 flat washers and 3 8 flanged lock nuts 4 Plug the motor cord into the control box receptacle Figure 8 IMPORTANT The conveyor belt has been overtightened for shipping purposes It must be te...

Page 11: ...just the four leg glides see Figure 4 using a carpenter s level placed on the conveyor bed in both X and Y axis positions Make sure the hex nuts on the leg glides are tightened securely against the sa...

Page 12: ...utboard slot width its end must be trimmed back three inches as shown 2 Squeeze the fastener lever Figure 12 on the outboard end of drum and insert the tapered end of the abrasive so that it uses most...

Page 13: ...does not bottom out against the inside of the drum IMPORTANT Leave a gap at least 1 8 between the tapered strip and the closed end of the slot Figure 16 to allow strip to be pulled into the fastener...

Page 14: ...essary do not connect the equipment grounding conductor to a live terminal Check with a qualified electrician or service personnel if the grounding instructions are not completely understood or if in...

Page 15: ...r initial drum alignment or other reasons lift the front cover half way and pull the dust cover out from the outfeed side of sander The edges will pop out when the dust cover is pulled from the carria...

Page 16: ...osition 4 Check the miter gear alignment The miter gears can be adjusted on their shafts by prying off their protective caps with a flat blade screwdriver and loosening the set screws on the gears Che...

Page 17: ...gauge support in position Once calibrated the locking knob B Figure 15 of the lower depth gauge support can be loosened allowing the lower depth gauge support to ride on top of the table support The...

Page 18: ...note that the drum will adjust about 1 2 on each end Position drum alignment templates Figure 28 on the conveyor and below the drum with one template at each end of the drum 5 Raise the conveyor bed s...

Page 19: ...of drum and test again until ridge is eliminated Conveyor Belt Tension and Tracking Tension and tracking adjustments may occasionally be necessary during break in and normal operation to compensate f...

Page 20: ...ke up screw nuts see Figure 31 to relieve belt tension and slide the driven roller fully inward 3 Remove the four bolts that attach the conveyor table to the table mounting brackets Lift up the convey...

Page 21: ...the drum alignment templates under the drum except place a few sheets of paper under the tension roller s needing adjustment Do NOT place the paper under the drum or alignment templates Tighten bolts...

Page 22: ...otor support Figure 38 and raise motor Remove v belt from pulleys 5 Install new v belt and tension the belt by using the weight of the motor only Make sure the pulleys are aligned Replace transfer rod...

Page 23: ...elt guard away from the v belt 6 Release v belt tension by loosening pinch bolt in motor support and raising motor 7 Loosen the set screw in the driven pulley and remove the pulley from the shaft 8 Re...

Page 24: ...raise the conveyor table slightly Always maintain control of stock Through practice you will learn the proper depth of cut considering the variables above Selecting Feed Rates Selecting proper feed ra...

Page 25: ...conveyor belt Sanding Imperfect Stock When sanding stock with a cup or crown place the crown up This will stabilize the stock to help prevent tipping or rocking during sanding After the crown has been...

Page 26: ...hen cleaning dust from the drums Also brush the conveyor belt after cleaning operations If not cleaned the conveyor belt could allow stock to slip during sanding operations For best results perform th...

Page 27: ...m slot of the Tracker Note When installed properly only the bottom lip of the Tracker will be visible The top slot is to be used if the bottom slot wears out 8 Install second Tracker opposite the firs...

Page 28: ...he most material in one pass whether you are doing abrasive planing cleaning up glued panels or flattening stock Grits from 100 through 220 are primarily finishing grits designed to remove the scratch...

Page 29: ...ive load on sanding drum and motor Allow motor to cool and re set overload button Too many tools on circuit Connect sander to a dedicated circuit Have a certified electrician correct any shop wiring p...

Page 30: ...uce depth of cut Excessive feed rate Reduce feed rate Inadequate dust collection Increase airflow at dust port Inadequate abrasive Use an open coat abrasive Abrasive loads up prematurely Stock fed at...

Page 31: ...tighten Dirty drum clean inside Excessive v belt tension reduce tension Worn v belt replace Warped drive pulley replace Drum out of balance contact your dealer or WMH authorized service center Tension...

Page 32: ...due to lack of contact Use alternate feeding procedure Gouging of wood Abrasive is too fine Replace with coarser grit Line or groove in stock Inconsistent feed rate Do not stop or change the feed rate...

Page 33: ...rasive Strip 50 Grit 60 8060 Klingspore Blue Ready To Cut TM Abrasive Strip 60 Grit 60 8080 Klingspore Blue Ready To Cut TM Abrasive Strip 80 Grit 60 8120 Klingspore Blue Ready To Cut TM Abrasive Stri...

Page 34: ...34 Stand Assembly...

Page 35: ...ar Table Mount Bracket 1 20 72 6208 Frame Clip 1 21 30 5105 Outboard Table Support 1 22 12 0209 Flanged Lock Nut 3 8 16 28 23 20 0755 Retaining Ring 10mm ID 20mm OD 1mm H 2 23A 20 0757 Retaining Ring...

Page 36: ...36 Drum Head Assembly...

Page 37: ...ller Spring 4 21 40 0303 Left Tension Roller Support Bracket 2 22 40 0302 Right Tension Roller Support Bracket 2 23 50 3105 Oilite Bushing I D 5 16 4 24 40 0304 Tension Roller Bracket 2 25 80 1060 Ten...

Page 38: ...38 Conveyor and Motor Assembly...

Page 39: ...4 2 26 11 0504 Lock Washer Internal Tooth 1 4 2 27 41 0003 Take Up Slide Bracket includes 17 2 28 30 3010 02 Driven Roller 1 29 20 1161 Wave Washer 1 4 2 30 4000380 Nylon Lock Nut 1 4 20 4 31 40 0002...

Page 40: ...unting Bracket LH 2 2R 40 0328 Mounting Bracket RH 2 3 10 9103 Hex Head Bolt 5 16 18x3 4 2 4 12 0152 Square Nut 5 16 18 2 7 10 9205 Hex Head Bolt 3 8 16x1 4 8 11 9103 Hardened Flat Washer 3 8 4 9 12 0...

Page 41: ...41 Electrical Connections...

Page 42: ...42 NOTES...

Page 43: ...43...

Page 44: ...44 WMH Tool Group 2420 Vantage Drive Elgin Illinois 60123 Phone 800 274 6848 www wmhtoolgroup com...

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