Jet JBG-8A, Operating Instructions And Parts Manual

14 

Troubleshooting 

Problem 

Probable Cause 

Remedy 

Motor will not start 

Not plugged into receptacle 

Plug it into the power source receptacle 

Switch not in the 

ON

 position 

Turn the switch to the ON position 

Motor cord cut or abraded 

Replace with a new cord 

Plug on cord is faulty 

Replace with a new plug 

Fuse or circuit breaker open 

Re-set, may be too many machines on line 

Motor faulty 

Call JET Customer Service Department 

Motor will not start and 
fuse  or  circuit  breaker 
opens 

Too  many  electrical  machines 
running on the same outlet 

Turn off other machines and try again 

Incorrect fuse 

Try  time  delay  fuse,  or  go  to  circuit  with 
higher rated fuse of circuit breaker 

Wheels cannot rotate because of 
obstruction 

Unplug and turn grinding wheel by hand 

Undersized extension cord 

Use  correct  size  extension  cord;  see 
manual 

Short circuit 

Cord,  plug,  or  motor  need  repair;  call  JET 
Customer Service Dept. 

Motor  fails  to  develop 
full power 

Low line voltage 

Check power line for proper voltage 

Faulty motor or capacitor 

Call JET Customer Service Dept. 

Motor overheats 

Overload on motor 

Reduce load to motor; do not press so hard 

Poor ventilation for motor 

Unplug  and  clean  out  around  motor; 
provide better air circulation 

Capacitor failure 

Call JET Customer Service Dept. 

Motor stalls or slows 

Motor overload 

Reduce load to motor; do not press so hard 

Low line voltage 

Check power line for proper voltage 

Loose wire connections 

Call JET Customer Service Dept. 

Faulty motor 

Call JET Customer Service Dept. 

Frequent fuse or circuit 
breaker failure 

Motor overload 

Reduce load to motor; do not press so hard 

Overload of electrical circuit 

Too  many  electrical  appliances  on  same 
circuit 

Incorrect fuse of circuit breaker 

Have electrician upgrade service to outlet