Pneumatic Angle Grinder #505450, JAT-450 #505451, JAT-451 Operation & Parts Manual M-505450 Edition 2 06/2015 JET 427 New Sanford Road LaVergne, TN 37086 Ph.: 800-274-6848 www.jettools.
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.
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 a JET Model JAT-450 and JAT-451 Pneumatic Angle 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 JAT-450 JAT-451 Stock number 505450 505451 Wheel size (Dia x Bore x Thk) 4 x 5/8 x 1/4 in. (101.6 x 15.88 x 6.35mm) 5 x 7/8 x 1/4 in. (127 x 22.23 x 6.35mm) Wheel type Type 27 Type 27 Spindle thread 3/8in.–24UNF 5/8in.–11UNC Horsepower 0.9 0.9 Free speed 12,000 RPM 12,000 RPM Average air consumption 4 CFM 4 CFM Air Inlet 1/4 in. NPT 1/4 in. NPT Air Hose inside diameter 3/8 in. 3/8 in. Required air pressure 90 psi (6.2 bar) 90 psi (6.
Setup and Assembly 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. Box contents: 1 1 1 1 1 Angle grinder Pin wrench Dead handle Operation and parts manual Warranty card Figure 2 6. Operation IMPORTANT: Connecting a quick-change coupling directly to the tool is not recommended, as vibration may cause the connection to fail.
NOTE: Air tool oil not provided; it is available at most major hardware and tool stores. SAE #10 oil or sewing machine oil may be used as a substitute. Do not use detergent oil. General Air Tool Information 3. Re-connect air. Run grinder at low throttle without load for a few seconds to distribute the oil throughout tool. If the air tool is not performing according to specifications, the following are among the most common causes. (See also “Troubleshooting” section.) 4.
Always use moisture traps at the compressor for the main distribution line. Use moisture traps and in-line oilers on each downline that is to be used for air tools. (See Figure 2). Place oiler as close to air tool as possible for best lubrication. Recycling Protect the environment. Your tool contains materials which can be recovered or recycled. When its useful life has expired, please leave tool at a specialized facility. Lubrication Use a light oil containing rust inhibitors, such as SAE #10.
Troubleshooting JAT-450/451 Angle Grinders 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.
#505450, JAT-450, 4-inch Angle Grinder – exploded view 12 JAT-450/451 Angle Grinder
#505450, JAT-450, 4-inch Angle Grinder – parts list Index 1 2 3 4 5 6 7 8 10 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Part No. JAT450-01 SM-30102 JAT450-03 JSM5130-04 Description Qty Motor housing 1 Spring pin 3x24L 1 Air inlet 1 Throttle lever 1 Throttle lever assembly (incl. 1 JSM5130-04A #4,50,51,52) JAT450-05 Pin 1 JSM7572-145 Rubber spacer 1 JAT450-07 O-Ring 4.9x2.
#505451, JAT-451, 5-inch Angle Grinder – exploded view 14 JAT-450/451 Angle Grinder
#505451, JAT-451, 5-inch Angle Grinder – parts list Index 1 2 3 4 5 6 7 8 10 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Part No. JAT450-01 SM-30102 JAT450-03 JSM5130-04 Description Qty Motor housing 1 Spring pin 3x24L 1 Air inlet 1 Throttle lever 1 Throttle lever assembly (incl. 1 JSM5130-04A #4,50,51,52) JAT450-05 Pin 1 JSM7572-145 Rubber spacer 1 JAT450-07 O-Ring 4.9x2.
427 New Sanford Road LaVergne, Tennessee 37086 Phone: 800-274-6848 16 JAT-450/451 Angle Grinder
www.jettools.
