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Operating Instructions — Parts Manual
Square Wheel Belt Grinder
Models: 4103, 4106, and 4126AC
WHM TOOL GROUP
2420 Vantage Drive
Elgin, Illinois 60123 Part No. 5507796
Ph.: 800-274-6848 Revision C2 09/04
www.wmhtoolgroup.com Copyright © WMH Tool Group
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Table of Contents Cover Page .........................................................................................................................................1 General Specifications .........................................................................................................................4 Operating Precautions .........................................................................................................................5 Setup and Operation......................
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General Specifications The Wilton Square Wheel Belt Grinder, Models 4103, 4106 and 4126AC, are designed for grinding, deburring, chamfering, and internal/external grinding of small and large parts. The Square Wheel Belt Grinder can be used to polish or buff finished parts and grind small internal radii using available accessories. Accessory changeover is quick and easy. Belt tension and tracking are easily adjustable. The Square Wheel Belt Grinder is available in either single speed (Models 41
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- Never leave machine running while you are away - Misuse of this machine can cause serious injury. from it. - For safety, machine must be set up, used and - Always shut off the machine when not in use. serviced properly. When servicing machine: - Read, understand and follow instructions in the - Always unplug machine from electrical power while operator’s and parts manual which was shipped with servicing. your machine. - Always follow instructions in operators and parts manual when changing acc
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17. Keep hands in sight and clear of all moving parts safe by using padlocks, master switches, or by and cutting surfaces. removing starter keys. 18. All visitors should be kept at a safe distance 19. Know the tool you are using—its application, from the work area. Make workshop completely limitations, and potential hazards. Wire sizes Caution: for circuits which are far away from the General Electrical Cautions electrical service box, the wire size must be in- This machine should be grounded i
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Introduction This manual includes operating and maintenance instructions for the Wilton Model 4103, 4106 and 4126AC Square Wheel Belt Grinder. The manual also includes parts listings and illustrations of replaceable parts. Refer to Figures 1 and 2 for key features of the Square Wheel Belt Grinder. Setup and Operation The Square Wheel Belt Grinder can be mounted on a work bench or an optional pedestal. The grinder should be secured to the work bench or pedestal using the four holes in the base o
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Operating Controls Vacuum Connection Model 4103/4106 NOTE: A variety of vacuum system options The ON/OFF switch for the Model 4103/4106 grinder are available. (Refer to Accessories section.) is located in a switch box mounted on the drive motor. The grinder uses a front mounted vacuum system. Refer to Fgure 3. Install the vacuum system Model 4126AC components as follows: NOTE: Refer to Figure 4. Use only the inverter 1. Slide the support bracket into the channel controls defined in the followi
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Typical Uses for the Square Wheel Belt Grinder Flat or angular Contouring — Grind Shaping — For Roughing — Ser- stock — Platen difficult, hard to grinding and finish- rated contact wheel is setting is the perfect reach areas with the ing cylindrical used for removing angle for high speed, 3-inch by 2-inch or 1- shapes. The yoke heavy stock, cleaning precision, flat and 1/2 inch by 2-inch surface conforms to up a weld or snag- level grinding of diameter contact the shape of the ging a casting.
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Installation of Platen Maintenance WARNING: BE SURE TO SET ON/OFF SWITCH Cleaning OFF TO AVOID PERSONAL INJURY. 1. Refer to Figure 6. Lower the tension lever to Shutoff the machine before cleaning. Keep the exterior release belt tension. of the machine clean and free of chips. Use a brush for 2. Loosen upper guard knob and swing guard cleaning. Periodically empty grinding dust and particles back for clearance. from the dust collection system. 3. Loosen the contact wheel shaft clamping screw o
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2. Spin the drive wheel by hand and check track- Replacement of Grinding Belt ing of the belt. If the belt tracks either right or WARNING: DO NOT OPERATE THE MACHINE WITH left, adjustment is required. THE SIDE PANEL OPEN. DISCONNECT ELECTRI- 3. Use an Allen wrench to change the alignment CAL POWER TO THE MACHINE BEFORE PERFORM- of the idler wheel. Turn the idler adjustment ING ANY MAINTENANCE. screw clockwise to cause the belt to track right. 1. Refer to Figure 7. Lower the belt tension leve
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Wiring Diagrams Model 4103 12 Model 4106 Model 4126AC
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Troubleshooting Problem Probable Cause Suggested Remedy Poor Tracking 1. Improper belt splice. 1. Check belt for irregular seam or shape. 2. Excessive belt tension. 2. Set tension so belt is just taut. 3. Insufficient belt tension. 3. Set tension so belt is just taut. 4. Worn contact surfaces. 4. Check elastomer on contact wheels. Replace worn wheels. 5. Misaligned contact surfaces. 5. Check alignment of drive wheel and contact wheels. The drive pulley and contact whee
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14 Exploded View - Square Wheel Belt Grinder 4 5
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15 1 5510944 Contact Wheel Assy, 10 x 2 Serrat, 90 Duro 1 5510943 Contact Wheel Assy, 8 x 2 Smooth, 50 Duro 1 5510942 Contact Wheel Assy, 8 x 2 Serrated, 50 Duro 1 2 5044590 Contact Wheel Assy, 1-1/2 x 2 1 3 5044610 Contact Wheel Assy, 3 x 2 1 3A 9049821 Screw, Flat Head Cap 2 4 5507582 Idler Wheel 1 5 9100331 Bearing 2 6 9074011 Retaining Ring, Internal 2 7 9074081 Retaining Ring, External 2 8 5510946 Contact Wheel, 8 x 2 Serrated, 50 Duro 1 5510947 Contact Wheel, 8 x 2 Smooth, 50 Duro 1 5510
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Parts List - Inverter Ref. Part Ref. Part No. Number Description Qty. No. Number Description Qty. 1 5550874 Screw, Socket head 7 6 5508073 Nut, Lock, 10-32 Nylock 4 Cap, 10-32NF x 3/8 7 5507934 Box, Switch 1 2 5507817 inverter (1ph, 120V, 50/60Hz) 1 9 9119721 Spade, Female 16-14AWG 4 5507818 Inverter (3ph, 220V, 50/60Hz) 10 9117401 Switch, Toggle 1 5511447 Inverter (3ph, 440V, 50/60Hz) 12 9085061 Dial, ON-OFF 1 3 9128571 Screw, Hex Head 1/2-13 x 1 1 13 9119071 Grip, Cord 2 4 5515215 Mount, Inve
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Accessories Belt Grinder Pedestal The optional pedestal enables the Square Wheel Belt Grinder to be mounted in a free standing configuration rather than on a work bench. The grinder is secured to the pedestal using the four holes in the base of the grinder (refer to page 22). Dust Collection Systems A dust collection system is available as an option (refer to page 24 for additional coverage). The dust collection system can be used in two con- figurations: as a machine base (Figure 9) or as a st
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Exploded View - Vacuum Scoop A vacuum scoop connects the machine to the vacuum system. The mounting provisions for the scoop are shown in the exploded view below. 15 7 14 13 10 12 1 10 12 11 2 10 9 3 8 4 7 6 5 18 Ref. Part Ref. Part No. Number Description Qty. No. Number Description Qty. 1 5053531 Scoop Assembly 1 8 5053571 Rail 1 2 5052471 Adapter, Hose 1 9 9032961 Lock Nut, Nylon Insert 4 3 5053601 Reducer, 4 x 3 in. 1 10 9055411 Washer, Nylon 8 (Woodworkers) 11 5053581 Channel 1 5053611 Redu
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Air Cushioned Dead Head Assembly 2 8 6 Refer to Figures 10 and 11. The air-cushioned dead 1 7 head is for use on very small radius grinding. When connected to a source of shop air (80-90 psi), the belt rides on a cushion of air to decrease head and 4 belt wear. The dead head is easy to use, and adapts 5 to any of the available radius tips. 3 Ref. Part No. Number Description Qty. 1 5044960 Air Cushion Dead Head 1 Assembly (Note 1) 2 5044970 Casting, Dead Head 1 3 5044991 Tip, Dead Head, 3/16 R
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Hub and Wheel Assembly Refer to Figures 12 and 13. The hub and wheel V-Belt assembly Small Diameter Contact Wheels can be used to adapt a number of other optional Collar attachments for use on the belt grinder. The assem- bly consists of a pre-balanced hub shaft, collar, and V-belt and a special wrench to enable quick change of the optional attachments. Hub Shaft 4 1 Ref. Part No. Number Description Qty. 1 5054920 Hub and Wheel Assembly 1 (Includes Hub Shaft, V-Belt, Collar, and Special Wrench)
