Jet Tools VBS-3612 operating instructions Troubleshooting Mechanical and Electrical Problems

Page 26

Troubleshooting – Mechanical and Electrical Problems

Trouble

Machine will not start/restart or repeatedly trips circuit breaker or blows fuses.

Probable Cause

Remedy

 

 

 

Verify machine is connected to power

No incoming power.

source. Make sure START button is

pushed in completely, and the STOP

 

 

button is disengaged.

 

 

Cord damaged.

Replace cord.

 

 

 

When the band saw overloads on the

 

circuit breaker built into the motor

 

starter, it may take time for the

Overload automatic reset has not

machine to cool down before restart.

reset.

Allow unit to adequately cool before

 

attempting restart. If problem persists,

 

check amp setting on the motor

 

starter.

 

 

 

One cause of overloading trips which

 

are not electrical in nature is too

 

heavy a cut. The solution is to reduce

 

feed pressure into the blade. If too

 

heavy a cut is not the problem, then

Band Saw frequently trips.

check the amp setting on the overload

 

relay. Match the full load amps on the

 

motor as noted on the motor plate. If

 

amp setting is correct then there is

 

probably a loose electrical lead.

 

Check amp setting on motor starter.

 

 

 

Verify that band saw is on a circuit of

Building circuit breaker trips or fuse

correct size. If circuit size is correct,

there is probably a loose electrical

blows.

lead. Check amp setting on motor

 

 

starter.

 

 

 

If you have access to a voltmeter, you

 

can separate a starter failure from a

 

motor failure by first, verifying

 

incoming voltage at 220+/-20 and

 

second, checking the voltage

Switch or motor failure (how to

between starter and motor at 220+/-

distinguish).

20. If incoming voltage is incorrect,

 

you have a power supply problem. If

 

voltage between starter and motor is

 

incorrect, you have a starter problem.

 

If voltage between starter and motor

 

is correct, you have a motor problem.

 

 

 

Clean motor of dust or debris to allow

Motor overheated.

proper air circulation. Allow motor to

 

cool down before restarting.

 

 

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Contents Inch Metalworking Band Saw Warranty and Service More InformationTable of Contents Page Page Introduction Specifications Features and Terminology Contents of the Shipping Container UnpackingFeed Screw Installation and AssemblyFence ShearExtension cords Volt, Three Phase OperationGrounding Instructions Three-Phase Test Run AdjustmentsConverting from 230 Volt to 460 Volt Three Phase Blade Removal and InstallationBlade Tension Blade TrackingGuide Post Blade GuidesReplacing Drive Belts Squaring Work Table with BladeAuxiliary Table Band Saw Operation Blade Break-In ProcedureSetting Blade Speed Work Lamp BulbShearing Welder OperationEvaluating Cutting Efficiency Removing Teeth WeldingAnnealing Blade Selection WidthShape GagePitch Blade Breakage SetMaterial Maintenance Machine Part Lubricant FrequencySpeed and Pitch Chart Typical Band Saw Operations Troubleshooting Operating Problems Troubleshooting Mechanical and Electrical Problems Trouble Probable Cause Remedy Troubleshooting Welded Blade Inspection Troubleshooting Welder Mechanical Problems Replacement PartsIndex No. Part No Description Size Qty TS-0561021 TS-0051051 VBS3612-1174 TS-0267061 VBS-3612 Band Saw VBS-3612 Band Saw JWG34-601 PR-EV-6280 Welder, Shear and Work Lamp Assemblies Electrical Connections 3Ph, 230/460V SB1 Electrical Box Page WMH Tool Group