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Operating Instructions and Parts Manual
2 x 72-inch Square Wheel Belt Grinder
Model SWG-272, SWG-272VS
Single speed model
shown with platen assembly
JET
427 New Sanford Road
LaVergne, Tennessee 37086
Ph.: 800-274-6848
www.jettools.com
This .pdf document is bookmarked
Variable speed model
Part No. M-577400
Edition 1 11/2020
Copyright © 2020 JET
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Summary of Contents for Jet SWG Series
- Page 1 2 x 72-inch Square Wheel Belt Grinder Model SWG-272, SWG-272VS Variable speed model Single speed model shown with platen assembly 427 New Sanford Road LaVergne, Tennessee 37086 Part No. M-577400 Ph.: 800-274-6848 Edition 1 11/2020 www.jettools.com Copyright © 2020 JET...
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Page 2: Important Safety Instructions
- Always follow instructions in operators and parts manual when changing accessory tools or parts. 15. Use the right tool. Don’t force a tool or - Never modify the machine without consulting JET. attachment to do a job for which it was not designed. -
Page 3: Safety Requirements For Abrasive Grinding Machines
1.2 Safety requirements for abrasive Never use an abrasive which shows backing, grinding machines nicks or cuts on the surface or edge or damage due to creasing or poor handling. Abrasive grinding can be hazardous to operators 10. Always present the workpiece to the wheel and bystanders. -
Page 4: About This Machine And Manual
Consult machinery handbooks, web forums, or experienced users if additional information is needed. Safety of user and bystanders must always be first priority. If there are questions or comments, please contact your local supplier or JET. JET can also be reached at our web site: www.jettools.com. -
Page 5: Table Of Contents
3.0 Table of contents Section Page 1.0 IMPORTANT SAFETY INSTRUCTIONS ....................... 2 1.1 Machinery general safety warnings ......................2 1.2 Safety requirements for abrasive grinding machines ................. 3 2.0 About this machine and manual ........................4 3.0 Table of contents ............................ -
Page 6: Specifications For Swg-Series Grinders
4.0 Specifications for SWG-series Grinders Table 1 Model number SWG-272 SWG-272VS Stock number 577400 577405 Motor and Electricals Motor type Totally enclosed industrial Totally enclosed fan cooled, inverter Horsepower 1 HP 3 phase motor Motor phase Single (but single phase input to inverter) Motor voltage 115/230 V (prewired 115V) Cycle... -
Page 7: Hole Spacing, Swg-272 / -272Vs
L = length, W = width, H = height, Dia. = diameter The specifications in this manual were current at time of publication, but because of our policy of continuous improvement, JET reserves the right to change specifications at any time and without prior notice, without incurring obligations. -
Page 8: Setup And Assembly
Note: Some illustrations in this manual may be the hole patterns. representative only, and not show your specific An optional JET stand is available for this machine. model. See sect. 10.0. Use the 4 holes in front of the motor to secure to this stand. -
Page 9: Electrical Connections
6.0 Electrical connections This tool is intended for use on a circuit that has an outlet that looks like the one illustrated in A, Figure 6-1. An adapter, shown in B and C, may be used to connect this plug to a 2-pole receptacle as shown in Electrical connections must be B if a properly grounded outlet is not available. -
Page 10: Extension Cords
6.2.2 Variable speed model (SWG-272VS) Position platen as desired: For grinding flat or angular workpieces, Remove existing plug from power cable and position platen with platen surface facing attach a UL/CSA listed plug designed for 230V outward. power; or “hardwire” the machine directly to a panel. -
Page 11: Belt Tracking
Raise belt tension lever to tighten belt against the wheels. Tighten belt until it is just taut. Do not over-tension the abrasive belt. A moderate tension will provide faster cutting, longer belt life, and better tracking. Excessive belt tension will reduce belt life and cause excessive wear of contact wheel bearings. -
Page 12: Typical Uses For The Square Wheel Belt Grinder
8.1.2 Single speed model (SWG-272) See Figure 8-2. Pull the red “mushroom” switch outward to start machine. The green light will illuminate. Push back in to stop machine; green light will turn off. To prevent accidental or unauthorized operation, stop the machine and pull out the yellow safety key. The key must be reinserted to start the machine. -
Page 13: User-Maintenance
Install bearings in new contact wheel. 9.0 User-maintenance Install shaft and secure with retaining ring. Mount new contact wheel to machine. Refer to sect. 7-1 for instructions on completing the Always disconnect power to installation. machine before performing maintenance. Failure to comply may result in serious personal injury. -
Page 14: Troubleshooting Swg-Series Square Wheel Grinders
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. -
Page 15: Swg-272 Square Wheel Belt Grinder - Exploded View
12.1.1 SWG-272 Square Wheel Belt Grinder – Exploded View... -
Page 16: Swg-272 Square Wheel Belt Grinder - Parts List
12.1.2 SWG-272 Square Wheel Belt Grinder – Parts List Index No Part No Description Size 1 ....SWG272-01 ....Main Frame ....................1 2 ....SWG272-02 ....Guard Flap ..................... 1 3 ....SWG272-03 ....Door ....................... 1 4 .... -
Page 17: Swg-272 Motor Assembly - Parts List And Exploded View
12.2.1 SWG-272 Motor Assembly – Parts List and Exploded View Index No Part No Description Size 33-1 ... SWG272-331 .... End Cover ...................... 1 33-2 ... BB-6205ZZ ....Ball Bearing ............. 6205ZZ ......1 33-3 ... SWG272-333 .... Shaft w/ Rotor ....................1 33-4 ... -
Page 18: Swg-272 Push Button Switch Assembly - Parts List And Exploded View
12.3.1 SWG-272 Push Button Switch Assembly – Parts List and Exploded View Index No Part No Description Size 38-1 ... SWG272-381 .... Switch Bracket ....................1 38-2 ... SWG272-382 .... Switch Box ..................... 1 38-3 ... SWG272-383 .... Strain Relief ....................2 38-4 ... -
Page 19: Swg-272Vs Square Wheel Belt Grinder - Exploded View
12.4.1 SWG-272VS Square Wheel Belt Grinder – Exploded View... -
Page 20: Swg-272Vs Square Wheel Belt Grinder - Parts List
12.4.2 SWG-272VS Square Wheel Belt Grinder – Parts List Index No Part No Description Size 1 ....SWG272-01 ....Main Frame ....................1 2 ....SWG272-02 ....Guard Flap ..................... 1 3 ....SWG272-03 ....Door ....................... 1 4 .... -
Page 21: Swg-272Vs Motor Assembly - Parts List And Exploded View
12.5 SWG-272VS Motor Assembly – Parts List and Exploded View Index No Part No Description Size 33-1 ... SWG272-331 .... End Cover ...................... 1 33-2 ... BB-6205ZZ ....Ball Bearing ............. 6205ZZ ......1 33-3 ... SWG272VS-333 ..Shaft w/ Rotor ....................1 33-4 ... -
Page 22: Swg-272Vs Control Switch Assembly - Parts List And Exploded View
12.6 SWG-272VS Control Switch Assembly – Parts List and Exploded View Index No Part No Description Size 38-1 ... SWG272VS-381 ..Switch Bracket ....................1 38-2 ... SWG272VS-382 ..Control Box ....................1 38-3 ... SWG272VS-383 ..Nylon Nut ....................... 2 38-4 ... -
Page 23: Idler Housing Casting Assembly (All Models) - Parts List And Exploded View
12.7 Idler Housing Casting Assembly (all models) – Parts List and Exploded View Index No Part No Description Size 4-1 ..... SWG272-401 .... Idler Housing Casting ..................1 4-2 ..... SWG272-402 .... Tension Lever ....................1 4-3 ..... SWG272-403 .... Nylon Tipped Set Screw .......... M8 x 20 ......1 4-4 ..... -
Page 24: Platen Assembly (All Models) - Parts List And Exploded View
12.8 Platen Assembly (all models) – Parts List and Exploded View Index No Part No Description Size 5-1 ..... SWG272-501 .... Platen ......................1 5-2 ..... F010725 ....Socket HD Flat Screw ..........5/16-18 x 5/8 ....2 5-3 ..... SWG272-503 .... Contact Wheel Shaft ..................2 5-4 ..... -
Page 25: Contact Wheel Assembly (All Models) - Parts List And Exploded View
12.9 Contact Wheel Assembly (all models) – Parts List and Exploded View Index No Part No Description Size 6-1 ..... SWG272-601 .... Contact Wheel ............8”x2” Serrated,90Duro .. 1 6-2 ..... SWG272-602 .... Shaft ......................1 6-3 ..... BB-6203VV ....Ball Bearing ............. 6203VV ......2 6-4 ..... -
Page 26: Dust Hood Assembly (All Models) - Parts List And Exploded View
12.10 Dust Hood Assembly (all models) – Parts List and Exploded View Index No Part No Description Size 40-1 ... SWG272-4001 ..Rail ........................ 1 40-2 ... SWG272-4002 ..Channel ......................1 40-3 ... SWG272-4003 ..Scoop ......................1 40-4 ... -
Page 27: Electrical Connections
13.0 Electrical Connections 13.1 Wiring diagram for SWG-272 13.2 Wiring diagram for SWG-272VS... -
Page 28: Warranty And Service
JET sells through distributors only. The specifications listed in JET printed materials and on official JET website are given as general information and are not binding. JET reserves the right to effect at any time, without prior notice, those alterations to parts, fittings, and accessory equipment which they may deem necessary for any reason ®...
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