Operating Instructions and Parts Manual Square Wheel Belt Grinder Models: J-4103, J-4126AC Model J-4103 Model J-4126AC WALTER MEIER (Manufacturing) Inc. 427 New Sanford Road LaVergne, Tennessee 37086 Ph.: 800-274-6848 www.waltermeier.com Part No. M-577000 Revision A3 01/2011 Copyright © 2011 Walter Meier (Manufacturing) Inc.
Warranty and Service Walter Meier (Manufacturing) 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 Walter Meier 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 1-800274-6848.
Table of Contents Cover Page .........................................................................................................................................1 General Specifications ......................................................................................................................... 4 Operating Precautions ......................................................................................................................... 5 Setup and Operation................................
General Specifications The JET Square Wheel Belt Grinder, Models J-4103 and J-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.
- Misuse of this machine can cause serious injury. - For safety, machine must be set up, used and serviced properly. - Read, understand and follow instructions in the operator’s and parts manual which was shipped with your machine. When setting up machine: - Always avoid using machine in damp or poorly lighted work areas. - Always be sure machine is securely anchored to the floor. - Always keep machine guards in place. - Always put start switch in OFF position before plugging in machine.
17. Keep hands in sight and clear of all moving parts and cutting surfaces. 18. All visitors should be kept at a safe distance from the work area. Make workshop completely safe by using padlocks, master switches, or by removing starter keys. 19. Know the tool you are using—its application, limitations, and potential hazards. Wire sizes General Electrical Cautions This machine should be grounded in accordance with the National Electrical Code and local codes and ordinances.
Introduction This manual includes operating and maintenance instructions for the JET Model J-4103 and J-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 of the grinder.
Vacuum Connection Operating Controls NOTE: A variety of vacuum system options are available. (Refer to Accessories section.) Model J-4103 The ON/OFF switch for the Model J-4103 grinder 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 components as follows: 1. Slide the support bracket into the channel secured to belt grinder base. Install one knob in the belt grinder base to secure the support bracket.
Typical Uses for the Square Wheel Belt Grinder Flat or angular stock — Platen setting is the perfect angle for high speed, precision, flat and level grinding of tools, knives, plastics, and other materials. The platen allows working to very close tolerances. An adjustable work rest is standard on all models. Shaping — For grinding and finishing cylindrical shapes. The yoke surface conforms to the shape of the surface to produce an even, smooth finish without the danger of scarring.
Maintenance Installation of Platen Cleaning WARNING: BE SURE TO SET ON/OFF SWITCH OFF TO AVOID PERSONAL INJURY. 1. Refer to Figure 6. Lower the tension lever to release belt tension. 2. Loosen upper guard knob and swing guard back for clearance. 3. Loosen the contact wheel shaft clamping screw on the head casting. 4. Remove contact wheel (see Replacement of Contact Wheel). 5. Install pivot shaft of platen in head casting. Position platen as desired. A.
Replacement of Grinding Belt WARNING: DO NOT OPERATE THE MACHINE WITH THE SIDE PANEL OPEN. DISCONNECT ELECTRICAL POWER TO THE MACHINE BEFORE PERFORMING ANY MAINTENANCE. 1. Refer to Figure 7. Lower the belt tension lever to release tension on the belt. 2. Loosen the knob on the left side of the machine and raise upper guard. Turn the knob on the side panel and lower the side panel. 3. If required, loosen work rest to provide clearance for belt removal. 4.
Wiring Diagrams Model J-4103 12 Model 4126AC
Troubleshooting Problem Probable Cause Suggested Remedy Poor Tracking 1. 2. 3. 4. 1. 2. 3. 4. Improper belt splice. Excessive belt tension. Insufficient belt tension. Worn contact surfaces. Check belt for irregular seam or shape. Set tension so belt is just taut. Set tension so belt is just taut. Check elastomer on contact wheels. Replace worn wheels. Check alignment of drive wheel and contact wheels. The drive pulley and contact wheel must be aligned.
Exploded View - Square Wheel Belt Grinder 14 45
12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 9 10 11 2 3 3A 4 5 6 7 8 1 Description Contact Wheel Assy, 10 x 2 Serrat, 90 Duro Contact Wheel Assy, 8 x 2 Smooth, 50 Duro Contact Wheel Assy, 8 x 2 Serrated, 50 Duro Contact Wheel Assy, 1-1/2 x 2 Contact Wheel Assy, 3 x 2 Screw, Flat Head Cap Idler Wheel Bearing Retaining Ring, Internal Retaining Ring, External Contact Wheel, 8 x 2 Serrated, 50 Duro Contact Wheel, 8 x 2 Smooth, 50 Duro Contact Wheel, 10 x 2 Serrated, 90 Duro Shaft, 8 x 10 Wheel Re
Parts List - Inverter Ref. Part No. Number Description 1 2 3 4 5 16 5550874 Screw, Socket head Cap, 10-32NF x 3/8 5507817 inverter (1ph, 120V, 50/60Hz) 5507818 Inverter (3ph, 220V, 50/60Hz) 5511447 Inverter (3ph, 440V, 50/60Hz) 9128571 Screw, Hex Head 1/2-13 x 1 5515215 Mount, Inverter 9119481 Terminal, Full Closed Qty. 7 1 1 1 1 Ref. Part No.
Accessories 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 1 12 10 12 11 2 10 9 3 4 8 7 6 5 17 Vacuum Scoop Exploded View Ref. Part No. Number Description 1 2 3 4 5 6 7 5053531 Scoop Assembly 5052471 Adapter, Hose 5053601 Reducer, 4 x 3 in. (Woodworkers) 5053611 Reducer, 4 x 3 in. (Metal Workers) 5507534 Clamp, Hose 3 in. 5507533 Hose, 3 x 5 in.
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 - follow the below instructions. Assembly of Pedestal Unpacking The grinding machine pedestal is shipped separately from the grinding machine. Transport the shipping containers to the installation site before unpacking.
B A Belt Guard Holes Approximately 1/2-inch from corners 2 3 Motor Side Holes 20 inches apart C 1 D 3 Install two 1inch long screws 19 2 Ref. No. 1 2 3 Part Number J-524808 9062121 5511051 Install two 1 3/4-inch screws Description Pedestal Socket Head Cap Screw (5/16-18 x 1) Socket Head Cap Screw (5/16-18 x 1 3/4) Figure 16: Assembly of Grinding Machine and Pedestal Qty.
WALTER MEIER (Manufacturing) Inc. 427 New Sanford Road LaVergne, Tennessee 37086 Ph.: 800-274-6848 www.waltermeier.
