6-inch Horizontal Grinder #550680, JCT-6680 Operation & Parts Manual M-550680 Edition 1 07/2016 JET 427 New Sanford Road LaVergne, TN 37086 Ph.: 800-274-6848 www.jettools.
Safety warnings General air tool warnings 1. Read and understand this entire manual before attempting assembly or operation. 2. Read and understand all warnings posted on the tool and in this manual. Failure to comply with all of these warnings may cause serious injury. 3. Replace warning labels if they become obscured or removed. 4. Do not use this tool for other than its intended use.
20. Do not use power tools in damp or wet location, or expose them to rain. Keep work area well lighted. 21. Do not leave a connected tool unattended. When not in use, disconnect tool from air source. 22. Shut off air supply and discharge any residual pressure from tool before removing hose, making adjustments, changing accessories, or storing tool. 23. Make sure tool is switched off, and your finger off the trigger, before connecting to air supply. 24.
About this manual This manual is provided by JET, covering the safe operation and maintenance procedures for the JET Model JCT-6680 Pneumatic Horizontal Grinder. This manual contains instructions on safety precautions, general operating procedures, maintenance procedures and parts breakdown. Your tool has been designed and constructed to provide consistent, long-term operation if used in accordance with the instructions set forth in this document.
Tool specifications Model number JCT-6680 Stock number 550680 Wheel size (Dia x Bore x Thk) 6 x 5/8 x 1 in. (152.4 x 16 x 25.4mm) Spindle thread 5/8in.–11 Horsepower 1.4 HP Free speed 6,300 RPM Average air consumption at load 24 CFM Air inlet 3/8 in. NPT Air hose minimum inside diameter 1/2 in. Required air pressure 90 psi (6.2 bar) Vibration value 4.19 m/s2 Noise level 1 88.8 dB(A) Speed settings Variable throttle Overall length 21-1/4 in.
Setup and Assembly 5. Any missing parts or damage should be reported immediately to your JET® distributor. Do not use a damaged tool. Read this instruction manual thoroughly for operation, maintenance and safety instructions. IMPORTANT: Connecting a quick-change coupling directly to the tool is not recommended, as vibration may cause the connection to fail. Instead, add a leader hose and install any quick-change couplings farther down the line.
Air system requirements 1. Use proper air hose size (refer to tool specifications). The hose should be just long enough to serve the working area. Excessive hose length will cause pressure drop. 1. Make sure air compressor supplies clean, dry air at correct CFM for the tool. 2. Set air pressure to 90 psi. for the job. Continued use in either capacity will cause damage to the tool.
Figure 2 Recommended arrangement of air piping and air line system 8 JCT-6680 Horizontal Grinder
Troubleshooting JCT-6680 Horizontal Grinder Any disassembly of the tool should be done by qualified service personnel. For problems not addressed below, contact JET technical service at 800-274-6846. Problem Possible cause Remedy Tool will not start. Air valve closed or obstructed. Open valve; clear any obstructions. Dirt or gum deposits on components. Flush tool with gum solvent. If problem persists, disassemble, clean and lubricate internal parts. Rotor vanes or other components are worn.
Replacement parts Service parts are listed on the following pages. To order parts or reach our service department, call 1-800274-6848 Monday through Friday, 8:00 a.m. to 5:00 p.m. CST. Please have the stock number and serial number of your tool available when you call, so that we may serve you quickly and accurately. Non-proprietary parts, such as fasteners, can be found at local hardware stores, or may be ordered from JET. Some parts are shown for reference only, and may not be available individually.
#550680, JCT-6680 6-inch Horizontal Grinder JET 11
#550680, JCT-6680 6-inch Horizontal Grinder Index 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 31 32 33 34 35 36 37 38 39 40 41 42 43 Part No.
Warranty and Service JET warrants every product it sells against manufacturers’ defects. If one of our tools needs service or repair, please contact Technical Service by calling 1-800-274-6846, 8AM to 5PM CST, Monday through Friday. Warranty Period The general warranty lasts for the time period specified in the literature included with your product or on the official JET branded website. • JET products carry a limited warranty which varies in duration based upon the product.
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427 New Sanford Road LaVergne, Tennessee 37086 Phone: 800-274-6848 www.jettools.
