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19

 

 

Calibration 

To establish the distance between conveyor 
table and sanding belt, proceed as follows: 

1.  Connect power and air to the sander, and 

turn the air valve switch on to tighten the 
sanding belt. NOTE: The controller will not 
move the table if the air valve switch is off.  

2.  Press and hold the UP 

S

 button on the 

keypad to raise the conveyor table until the 
thicknesser knob (Figure 21) contacts the 
limit switch. The table will automatically stop 
while making slight contact with the sanding 
belt. 

3.  Press “0” (zero) on  the keypad (the display 

will begin flashing and the input light will be 
lit). Then press SET for 2 to 3 seconds. The 
display will now read zero. This is the 
distance between sanding belt and conveyor 
table, upon which further movement of the 
table can be based. 

4.  Input a number using the keypad (display 

will begin flashing and the input light will be 
illuminated). 

5.  While the display is still flashing, press the 

START button on the keypad (run light will 
now be illuminated). The conveyor table will 
move to the desired distance from the 
sanding belt. 

Using the LED for Operations 

The sander has a thicknesser which 
automatically sets the table at the thickness of 
your workpiece: 

1.  Place your workpiece upon the conveyor 

table and move it below the thicknesser, as 
shown in Figure 21. Keep the workpiece flat 
upon the table. Press and hold the UP 

S

 

button on the keypad to raise the conveyor 
table. When the workpiece contacts the limit 
switch the conveyor table will stop. The table 
is now positioned at the thickness of your 
workpiece. 

2.  Remove the workpiece.  

3.  Press and hold SET while inputting the 

desired sanding depth (the display will begin 
flashing and the input light will be 
illuminated.) Release the SET button and 
the display will stop flashing. 

4.  Press and release the UP 

S

 button, and the 

table will rise to the desired position. 

NOTE: If you do not input a number, but 
simply press the UP

S

 button, the unit is 

pre-programmed to move the table .005” at 
a time. 

 

Figure 21 

5.  Press the sanding belt START button and 

the conveyor table START button on the 
control panel, and feed the workpiece 
through the machine. 

6.  Make further passes as needed, raising the 

table each time using the UP

S

 button.  

Operation 

Before operating the sander, make sure that: 

1.  The dust collection system is turned on. 
2.  Sanding belt tracking and oscillation are 

working properly. 

3.  Conveyor belt tracking is correct. 
4. All screws and handles are tightened 

securely. 

5.  Working air pressure is correct. (Normal 

working pressure is 75 to 80 PSI.) 

Do not 

operate sander until normal pressure is 
reached.

 

6.  Thickness is correctly input into the LED 

unit. 

7.  Feed rate is correctly set. 
8.  Workpiece is free of nails, knots and other 

obstructions. 

Braking System 

The sander will not start or will halt operations if 
any of the following occur: 

  No air supply to the machine. 

  No sanding belt installed. 

  Improper belt tension. 

  Sanding belt runs out of track. 

  The emergency stop button on the control 

panel is pressed. 

  The emergency stop plate on the conveyor 

table is pushed. 

Summary of Contents for WB-25

Page 1: ...Wide Belt Sanders Models WB 25 WB 37 WB 43 model WB 37 shown WMH TOOL GROUP 2420 Vantage Drive Elgin Illinois 60123 Part No M 1790825 Ph 800 274 6848 Revision B 7 06 www wmhtoolgroup com Copyright WM...

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: ...Motor Assembly Model WB 25 ONLY 24 Parts List Base and Motor Assembly Model WB 25 25 Base and Motor Assembly Model WB 37 ONLY 26 Parts List Base and Motor Assembly Model WB 37 27 Base and Motor Assem...

Page 4: ...WB 25 54 Parts List Sanding Belt and Accessories Model WB 37 54 Parts List Sanding Belt and Accessories Model WB 43 54 Tension Roller Assembly Models WB 25 and WB 37 ONLY 55 Parts List Tension Roller...

Page 5: ...Some examples of these chemicals are Lead from lead based paint Crystalline silica from bricks cement and other masonry products Arsenic and chromium from chemically treated lumber Your risk of expos...

Page 6: ...ing a board of equal thickness behind it to help it through the machine Do not sand stock less than 1 8 thick 26 Never reach into a running machine Turn off and disconnect from power source before att...

Page 7: ...orking Width in 25 37 43 Maximum Thickness in 6 6 6 Minimum Board Length in 12 12 12 Main Drive Motor 15HP 3Ph 230 460V 20HP 3Ph 230 460V 25HP 3Ph 230 460V Power Feed Motor 1HP 3Ph 1HP 3Ph 2HP 3Ph Tab...

Page 8: ...distributor Read this instruction manual thoroughly for assembly maintenance and safety instructions Contents of the Shipping Container 1 Sander 2 Sanding belts 100 and 180 grit 1 Felt pad 1 Graphite...

Page 9: ...n rubber or plastic areas of the machine Air Supply Connection The sander must be connected to an air supply unit The recommended working pressure is 75 to 80 PSI The air connection is on the Filter R...

Page 10: ...ck C Figure 3 and lock screw B Figure 3 and tighten the lock screw by turning clockwise 9 Turn the air valve switch A Figure 3 to ON to tension the sanding belt 10 Make sure there is clearance between...

Page 11: ...sander s electrical box for clarification of electrical connections These diagrams are also shown on pages 67 and 68 of this manual 1 Make sure the machine s plug is disconnected from the power source...

Page 12: ...of an extension cord for this sander is discouraged because of the machine s high amperage draw If an extension cord becomes necessary make sure the cord rating is suitable for the amperage listed on...

Page 13: ...ding belt is operating it s edge will pass over the holes in the oscillation bracket The blocked air flow will cause a sensor to activate the tracking cylinder which pivots the upper roller and shifts...

Page 14: ...3 2 Place the platen pull hook into the hole on the end of the platen and pull out the lower portion of the platen assembly as shown in Figure 10 NOTE The platen is tightly fitted and will require a f...

Page 15: ...3 as needed with a 19mm wrench Rotate clockwise to increase tension counter clockwise to decrease tension NOTE Removal of the emergency stop cover is not necessary for tensioning NOTE Do not over tigh...

Page 16: ...der to meet the sanding requirements of a wide variety of materials Selecting a proper feed rate is largely a matter of experience In general soft woods require a higher feed rate while hard woods req...

Page 17: ...that side of the pressure bar counterclockwise to lower it 8 When finished re tighten lock nut A Figure 17 Table Parallelism Parallelism of the conveyor table to the contact roller has been factory s...

Page 18: ...mains engaged after being pushed To disengage rotate the ring until the emergency stop button pops back out The emergency stop cover has a plate shown in Figure 16 which shuts down all machine operati...

Page 19: ...workpiece contacts the limit switch the conveyor table will stop The table is now positioned at the thickness of your workpiece 2 Remove the workpiece 3 Press and hold SET while inputting the desired...

Page 20: ...ander Remove the sanding belt before cleaning and re install it when finished Keep the sanding belt clean using cleaning sticks or pads not provided Blow dust off the conveyor belt with compressed air...

Page 21: ...ition sanding belt so it is between the limit switches Insufficient air pressure causing belt to slip on rollers Make sure air pressure regulator is set at 75 to 80 PSI page 9 Sanding belt will not ru...

Page 22: ...sanding belt Unequal position of pressure bars Adjust pressure bars to produce equal pressure on stock Uneven thickness between the front and rear ends of the workpiece Table not parallel front to bac...

Page 23: ...ust distance between induction unit and induction sheet to less than 1mm Display shows figures but they do not change in conjunction with the hoist motor s operation Encoder not running in accordance...

Page 24: ...24 Base and Motor Assembly Model WB 25 ONLY Parts list on page 25...

Page 25: ...y Bushing 1 18 VB B73 V Belt B 73 2 19 WB25 219 Brake Base 1 20 TS 0680041 Flat Washer 3 8 2 21 TS 0060031 Hex Cap Screw 3 8 16x3 4 2 22 6294280 Limit Switch 2 23 6294281 Limit Switch Plate 2 24 TS 00...

Page 26: ...26 Base and Motor Assembly Model WB 37 ONLY Parts list on page 27...

Page 27: ...Disc Brake 1 17 WB37 217 Pulley Bushing 1 18 VB B72 V Belt B 72 3 19 WB37 219 Brake Base 1 20 TS 0680041 Flat Washer 3 8 2 21 TS 0060031 Hex Cap Screw 3 8 16x3 4 2 22 6294280 Limit Switch 2 23 6294281...

Page 28: ...28 Base and Motor Assembly Model WB 43 ONLY Parts list on page 29...

Page 29: ...g 1 18 VB B70 V Belt B 70 3 19 WB37 219 Brake Base 1 20 TS 0680041 Flat Washer 3 8 2 21 TS 0060031 Hex Cap Screw 3 8 16x3 4 2 22 6294280 Limit Switch 2 23 6294281 Limit Switch Plate 2 24 TS 0050021 He...

Page 30: ...30 Upper Cabinet Assembly Model WB 25 ONLY Parts list on page 31...

Page 31: ...sher 5 16 5 8 WB25 308 Lower Door 2 9 TS 0561021 Hex Nut 5 16 18 1 10 TS 081F031 Flat Head Screw 1 4 20x1 2 8 11 WB25 311 Emergency Plate 1 12 WB25 312 Door Hinge Pin 4 13 TS 2361061 Lock Washer M6 6...

Page 32: ...32 Upper Cabinet Assembly Models WB 37 WB 43 Parts list on page 33...

Page 33: ...1 21 WB25 321 Thicknesser Post 1 22 TS 0207031 Socket Head Cap Screw 1 4 20x5 8 2 23 WB25 323 Cover 1 Parts List Upper Cabinet Assembly Model WB 43 Exploded view on page 32 Index No Part No Descriptio...

Page 34: ...34 Table Raising Assembly Models WB 25 WB 37 WB 43 Parts list on page 35 WB 25 page 36 WB 37 and page 37 WB 43...

Page 35: ...4 6294318 Bearing Cap 1 25 TS 0206031 Socket Head Cap Screw 10 24x5 8 3 26 6294320 Bearing Cap 1 27 TS 0207031 Socket Head Cap Screw 1 4 20x5 8 3 28 6294322 Sprocket Wheel 1 29 TS 0270051 Set Screw 5...

Page 36: ...311 Elevation Gearbox 1 18 6294312 Worm Gear 1 19 BB 6005Z Ball Bearing 6005Z 2 20 6294314 Bearing Cap 1 21 TS 0207041 Socket Head Cap Screw 1 4 20x3 4 3 22 6294316 Worm Gear 1 23 BB 6002Z Ball Bearin...

Page 37: ...94303 Dust Guard Bellow 4 9 TS 0081031 Hex Cap Screw 5 16 18x3 4 12 10 TS 0680041 Flat Washer 3 8 6 11 6294305 Chain 1 12 6294306 Nut Housing 4 13 6294307 Nut 4 14 6294308 Thrust Bearing 4 15 6294309...

Page 38: ...7 Hex Screw 1 2 12x4 1 48 WB25 448 Switch Plate 1 49 TS 0050011 Hex Cap Screw 1 4 20x1 2 1 50 WB25 450 Switch 1 51 TS 2283302 Pan Head Screw M3x30 2 52 TS 1540011 Hex Nut M3 2 53 6294337 Key 5 16x5 16...

Page 39: ...39 Table and Conveyor Belt Assembly Models WB 25 WB 37 WB 43 Parts list on page 40 WB 25 page 41 WB 37 and page 42 WB 43...

Page 40: ...TS 1551071 Lock Washer M10 4 24 WB25 524 Timing Belt 1 25 TS 1505031 Socket Head Cap Screw M10x25 4 26 6294383 Variable Speed Unit Base Plate 1 27 6294387 Variable Speed Unit Cover 1 28 TS 1490031 Hex...

Page 41: ...23 TS 1551071 Lock Washer M10 4 24 WB25 524 Timing Belt 1 25 TS 1505031 Socket Head Cap Screw M10x25 4 26 6294383 Variable Speed Unit Base Plate 1 27 6294387 Variable Speed Unit Cover 1 28 TS 1490031...

Page 42: ...or 2HP 230 460V 3Ph 1 23 TS 1551071 Lock Washer M10 4 24 WB25 524 Timing Belt 1 25 TS 1505031 Socket Head Cap Screw M10x25 4 26 6294383 Variable Speed Unit Base Plate 1 27 6294387 Variable Speed Unit...

Page 43: ...k Roller Slider Male 1 7 6294396 Roller Adjusting Screw 4 8 6294397 Spring Pin 4 9 6294398 Spring 4 10 6294399 Roller Slider Cover 4 11 TS 0207031 Socket Head Cap Screw 1 4 20x5 8 8 12 6294401 Roller...

Page 44: ...561011 Hex Nut 1 4 20 8 20 TS 0720081 Lock Washer 5 16 8 21 TS 0051061 Hex Head Screw 5 16 18x1 1 4 8 Parts List Pressure Bar Assembly Model WB 43 Exploded view on page 43 Index No Part No Description...

Page 45: ...List Platen Assembly Model WB 25 Index No Part No Description Size Qty 1 WB25 701 Hex Cap Screw 1 2 12x1 1 2 4 2 TS 0720111 Lock Washer 1 2 4 3 TS 0060061 Hex Cap Screw 3 8 16x1 1 4 3 4 TS 0720091 Lo...

Page 46: ...ap Screw 1 4 20x1 2 12 30 6290317 Grease Fitting 3 31 6290318 Fastening Ring 1 32 6290321 Bearing 22207 1 33 6290322 Bearing Cover 1 34 6290323 Grease Fitting 1 35 6062032 Bearing 22206 1 36 6290465 L...

Page 47: ...n Assembly Model WB 37 Index No Part No Description Size Qty 1 WB25 701 Hex Cap Screw 1 2 12x1 1 2 4 2 TS 0720111 Lock Washer 1 2 4 3 TS 0060061 Hex Cap Screw 3 8 16x1 1 4 3 4 TS 0720091 Lock Washer 3...

Page 48: ...6290323 Grease Fitting 1 35 6062032 Bearing 22206 1 36 6209465 Lock Nut 30mm LH 1 37 WB37 737 Mounting Frame 1 38 6290325 Graphite Base Gearbox Left 1 39 6290326 Graphite Base Gearbox Right 1 40 6290...

Page 49: ...ng Cover 3 29 TS 0207021 Socket Head Cap Screw 1 4 20x1 2 12 30 6290317 Grease Fitting 3 31 6290318 Fastening Ring 1 32 6290321 Bearing 22207 1 33 6290322 Bearing Cover 1 34 6290323 Grease Fitting 1 3...

Page 50: ...549 Elbow 1 7 TS 081C042 Screw 10 24x5 8 2 8 6294551 Elbow 1 9 6294552 Solenoid Valve 1 10 6294553 T Joint 1 11 6294554 Plastic Connector 3 12 6294555 Multiple Hole Connector 1 13 6294556 Plastic Conn...

Page 51: ...5 8 2 8 6294551 Elbow 1 9 6294552 Solenoid Valve 1 10 6294553 T Joint 1 11 6294554 Plastic Connector 3 12 6294555 Multiple Hole Connector 1 13 6294556 Plastic Connector 1 14 6294557 Bronze Elbow 1 15...

Page 52: ...onnector 1 16 6294559 Plastic Connector 2 17 6294560 Throttle Valve 2 18 6294561 Plastic Connector 1 19 6294562 Bronze Connector 1 20 6294563 Plastic Connector 1 21 6294564 Plastic Connector 1 22 6294...

Page 53: ...53 Sanding Belt and Accessories Models WB 25 WB 37 WB 43 Parts list on page 54...

Page 54: ...6288702 Felt 1 5 6288703 Graphite 2 6 6294256 Door Lock Key 2 7 Sanding Belt local purchase 37 75 100Grit 1 Sanding Belt local purchase 37 75 180Grit 1 8 WB25 1008 Cross Point Screwdriver 1 9 WB25 10...

Page 55: ...55 Tension Roller Assembly Models WB 25 and WB 37 ONLY Parts list on page 56 WB 25 and page 57 WB 37...

Page 56: ...6 18x3 4 5 25 TS 0206041 Socket Head Cap Screw 10 24x3 4 12 26 TS 0560071 Hex Nut 10 24 12 27 6294478 Connector Oil Cap 1 28 6294479 Shaft Oil Cup 1 29 TS 0208111 Socket Head Cap Screw 5 16 18x2 1 4 1...

Page 57: ...Aluminum Disc 1 17 6294470 Oil Cup 1 18 6294471 Aluminum Plate 1 19 TS 2284202 Pan Head Screw M4x20 2 20 WB25 120 Sanding Belt Power Off Plate 1 21 TS 0561032 Hex Nut 3 8 24 2 22 TS 0680031 Flat Wash...

Page 58: ...m Cover 1 51 6294498 Spring 1 52 6294499 Aluminum Plate 1 53 TS 2286121 Flat Head Screw M6x12 1 54 6294501 Plate 1 55 6294502 Top Cover 1 56 TS 0720051 Lock Washer 10 12 57 TS 0051011 Hex Cap Screw 5...

Page 59: ...59 Tension Roller Assembly Model WB 43 ONLY Parts list on page 60...

Page 60: ...cket Head Cap Screw 10 24x3 4 12 26 TS 0560071 Hex Nut 10 24 12 27 TS 0081031 Hex Cap Screw 5 16 18x3 4 5 28 6294478 Connector Oil Cap 1 29 6294479 Shaft Oil Cup 1 30 WB43 130 Hex Cap Screw 1 2 12x1 4...

Page 61: ...494 Universal Joint Fork 1 59 WB25 149 Hex Nut 1 2 12 1 60 TS 0561021 Hex Nut 5 16 18 1 61 6294503 Base Air Cylinder Firing 1 62 WB25 159 Eccentric Shaft Housing 1 63 WB43 163 Frame Support 1 64 TS 15...

Page 62: ...62 Electrical Box Assembly Models WB 25 and WB 37 Parts list on page 63 WB 25 and 64 WB 37...

Page 63: ...230V 1 WB25 812A Overload Relay for 460V 1 13 WB25 813 Fuse 4A 2 14 WB25 814 Overload Relay for 230V 1 WB25 814A Overload Relay for 460V 1 15 6294647 Contactor CN 11 4 16 WB25 816 Wire Column 1 17 WB...

Page 64: ...230V 1 WB37 812A Overload Relay for 460V 1 13 WB25 813 Fuse 4A 2 14 WB25 814 Overload Relay for 230V 1 WB25 814A Overload Relay for 460V 1 15 6294647 Contactor CN 11 4 16 WB25 816 Wire Column 1 17 WB...

Page 65: ...65 Electrical Box Assembly Model WB 43 ONLY Parts list on page 66...

Page 66: ...2 14 WB43 814 Overload Relay for 230V 1 WB43 814A Overload Relay for 460V 1 15 WB25 813 Fuse 4A 2 16 WB43 816 Overload Relay for 230V 1 WB43 816A Overload Relay for 460V 1 17 6294647 Contactor CN 11 4...

Page 67: ...67 Electrical Connections Models WB 25 and WB 37 ONLY...

Page 68: ...68 Electrical Connections Model WB 43 ONLY...

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