Greenlee Textron - Greenlee 855 Instruction Manual

Troubleshooting (cont'd)
MAKES INACCURATE BENDS
Press BEND to rotate shoe and
stop it when the pendant displays
between 1 -6 . Note the shoe
position. Press BEND and con-
tinue past 90 . Unload to angle
first stopped at (between 1 -6 )
without passing it. Note shoe
position. Is shoe within 1 of first
position stopped at?
YES
Consistently bends all sizes of
one shoe a few degrees over
or bends all the sizes a few
degrees under.
NO
Consistently overbends by more
than 5 and can't be properly
adjusted.
NO
Bends some sizes of one shoe
1 or 2 over and other sizes of
the same shoe 1 or 2 under.
NO
Consistently underbends by a
few degrees and can't be ad-
justed correctly.
NO
Clean and tighten all ground
connections at frame.
NO
Isolate motor leads from cables
that plug into the I/O board.
NO
Replace optical encoder?
NO
Replace I/O board.
Customer Service (North America): 800/435-0786 • Fax: 800/451-2632, 815/397-1865
Greenlee Textron / Subsidiary of Textron Inc.
855 Smart Bender™
Isolate motor leads
NO
from all cables that
go to I/O board.
YES
Adjust the limit
switch for that shoe.
YES
Bender coasts to
a stop.
NO
No-load motor
speed is greater
than 4400 rpm.
NO
Replace optical
encoder.
YES Indicates variations
in the conduit. Use
Accuracy Adjust-
ment to compen-
sate.
Limit switch arm is
YES
bent or switch is
mounted backwards.
Greenlee Textron / Subsidiary of Textron Inc.
4455 Boeing Drive, Rockford, IL 61109-2988 USA
Customer Service (International): 815/397-7070 • Fax: 815/397-9247
Canada Fax: 800/524-2853
Are set screws tight
NO
in drive hub on
optical encoder?
YES
Replace optical
encoder.
YES
Adjust motor brake.
YES
Replace motor field.
62 4455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070
Tighten to 22 inch-
NO
ounces torque.
Printed in the U.S.A.