Use and Care Manual
Table Of Contents
- 2 x 72-inch Square Wheel Belt Grinder
- 1.0 IMPORTANT SAFETY INSTRUCTIONS
- 2.0 About this machine and manual
- 3.0 Table of contents
- 4.0 Specifications for SWG-series Grinders
- 5.0 Setup and assembly
- 6.0 Electrical connections
- 7.0 Adjustments
- 8.0 Operation
- 9.0 User-maintenance
- 10.0 Optional accessories
- 11.0 Troubleshooting SWG-series Square Wheel Grinders
- 12.0 Replacement Parts
- 12.1.1 SWG-272 Square Wheel Belt Grinder – Exploded View
- 12.1.2 SWG-272 Square Wheel Belt Grinder – Parts List
- 12.2.1 SWG-272 Motor Assembly – Parts List and Exploded View
- 12.3.1 SWG-272 Push Button Switch Assembly – Parts List and Exploded View
- 12.4.1 SWG-272VS Square Wheel Belt Grinder – Exploded View
- 12.4.2 SWG-272VS Square Wheel Belt Grinder – Parts List
- 12.5 SWG-272VS Motor Assembly – Parts List and Exploded View
- 12.6 SWG-272VS Control Switch Assembly – Parts List and Exploded View
- 12.7 Idler Housing Casting Assembly (all models) – Parts List and Exploded View
- 12.8 Platen Assembly (all models) – Parts List and Exploded View
- 12.9 Contact Wheel Assembly (all models) – Parts List and Exploded View
- 12.10 Dust Hood Assembly (all models) – Parts List and Exploded View
- 13.0 Electrical Connections
- 14.0 Warranty and Service
14
11.0 Troubleshooting SWG-series Square Wheel Grinders
Table 2
* WARNING: Some corrections may require a qualified electrician.
Symptom Possible Cause Correction *
Machine won’t start.
No incoming power. Verify machine connections.
Cord damaged. Replace cord.
Building circuit breaker trips or fuse
blows.
Verify that machine is on a circuit of correct size,
preferably a dedicated circuit. If circuit size is
correct, there may be a loose electrical lead.
Motor overloaded.
Vacuum motor fan area to promote proper air
circulation. (Do NOT use compressed air.)
Allow machine to cool, then restart.
Motor or switch failure.
Have tested by qualified electrician or motor repair
shop, replace if needed.
Machine won’t attain
full speed.
Extension cord too light or too long. Replace with adequate size extension cord.
Low current. Have voltage checked by qualified electrician.
Poor tracking. Low voltage. Check power line for proper voltage.
Incorrect belt tension. Set tension so belt is just taut.
Worn contact surfaces. Check contact wheels for wear. Replace worn or
warped wheels.
Misaligned contact surfaces. Check alignment of drive wheel and contact
wheel - they must be aligned. To adjust drive
wheel, loosen set screws and move drive wheel
in or out on motor shaft as required. To adjust
contact wheel, loosen shaft clamping screw and
move contact wheel in or out as required.
Lack of crown on drive wheel. Check for 1/16-inch crown. Replace drive wheel
if crown is not present.
Worn bearings. Check all bearings for overheating or damage.
Replace worn or damaged bearings.
Slack belt. Insufficient belt tension. Set tension so belt is just taut.
Contact wheel wear. Excessive belt tension. Set tension so belt is just taut.
Grinding in one area on belt. Use entire width of belt whenever possible.
Excessive grinding deposits on belt
and debris in machine.
Clean abrasive belt and grinder interior.
Short belt life. Excessive grinding pressure. Allow the belt to do the cutting. Excessive
pressure dulls the belt and removes the grit.
12.0 Replacement Parts
Replacement parts are listed on the following pages. To order parts or reach our service department, call 1-800-
274-6848 Monday through Friday, 8:00 a.m. to 5:00 p.m. CST. Having the Model Number and Serial Number of
your machine available when you call will allow us to 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.