Greenlee 555C - Page 28

Greenlee / A Textron Company 28 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
555C Electric Bender Classic
NO
NO
YES
NO
YES
Troubleshooting (cont’d)
The following flow charts show the suggested trouble-
shooting procedures for some bender problems. They by
no means encompass all possible problems or solutions.
Electric shock hazard:
• Contact with live circuits can
result in severe injury or death.
• Some troubleshooting steps
require power to the bender.
This type of troubleshooting step
should only be performed at
authorized Greenlee service
centers by personnel who are
familiar with safe troubleshooting
procedures.
Failure to observe these warnings
could result in severe injury or
death.
Trips 555C switch/circuit breaker
Won’t stop
Clean contacts or replace K2.
YES
NO
Replace pendant
switch.
Does bender stop when the
pendant is unplugged?
YES
Clean contacts or replace K2.
Follow directions in
instruction manual.
Replace circuit
breaker.
Replace motor.
Replace bridge
rectifier (918 5997.2).
YES
NO
YES
NO
Are the proper roller supports and
shoe groove being used for the
type and size of conduit being
bent?
Is the current on the 115 VAC line
exceeding 20 amps?
Is the DC current to the motor
exceeding 17 amps?
When BEND is pressed, is the
voltage sent to the motor
110 VDC (approx.)?
Are connectors corroded?
Clean the connectors.