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3
Drive belt tensioning
seems loose.
Belt is worn out. Belt may be worn or damaged and must be replaced,
Part Number – CL310014.
Refer to “Drive Sprocket Assembly” in “DISASSEMBLY” section (page 8)
for instructions.
Tensioner failure. Tensioner may be damaged and must be replaced, Part Number – CL306900.
The motor must be removed in order to remove the tensioner. Refer to
“Electric Motor” in “DISASSEMBLY” section (page 5) for instructions.
Motor pulley is lose. If the motor has been disassembled in the past, thread-locking fluid may
not have applied to the containing screw of the motor pulley (Part Number –
CL311019) when reassembling the motor assembly (Part Number – CL43259).
Apply thread-locking fluid on containing screw and assemble it to the
motor pulley.
Refer to “Electric Motor” in “DISASSEMBLY” section (pages 7 & 8)
for instructions.
Bend switch does not
function, return switch
functions.
Remote pendant
bend switch or wiring
inoperative.
Unplug bender power cord, test for continuity at hard¬ness to pendant. Attach
leads to black and white wires. Press bend switch. If no continuity, check
switch under pendant cover. Place ohm meter on leads for black wire and
white wire. Depress bend switch.
If continuity exists, replace switch, Part Number - DA9687372.
If no continuity, wire harness is faulty.
Refer to “Limit Switch” in “DISASSEMBLY” section (page 7) for instructions.
Bend limit switch or
harness to limit switch
is malfunctioning.
Unplug bender power cord. Perform continuity check on green and orange
wires. Press bend limit switch actu¬ator tab.
If continuity exists, replace switch, Part Number - DA9687372.
If no continuity, check wiring harness. (Refer to Repair Parts List for
illustration and additional part numbers).
If no continuity exists on wire harness, it must be replaced.
Refer to “Limit Switch” in “DISASSEMBLY” section (page 7) for instructions
Plunger on bend limit
switch is not being
tripped by the shoe post.
Remove shoe indicator plate (Part Number – CM801950). Observe the shoe
post as it passes the bend limit switch (Part Number - DA9687372). The shoe
post should trip the plunger on the bend limit switch as it passes over the limit
switch.
If the shoe post is not tripping the plunger, replace the limit switch, Part
Number- DA9687372.
Refer to “Limit Switch” in “DISASSEMBLY” section (page 7) for instructions.
Printed circuit board
malfunctioning.
Replace P.C. board, Part Number- EC2006 or HC12
Refer to “Circuit Board” in “DISASSEMBLY” section (page 7) for instructions.
Bend function works,
return switch does not.
Pendant return switch is
malfunctioning.
Unplug bender power cord. Perform continuity check on pendant return
switch. Attach leads to black wire and white wire, depress return switch.
*The colors described here are not present on the model B2000-7 and B2000-
8 pendant harness (B2000 SERIAL NUMBERS BEGINNING WITH LETTERS
“J” - “N” OR BENDERS MANUFACTURED AFTER 2007). However, the same
troubleshooting actions should be taken.
If continuity exists, replace switch, Part Number - DA9687372.
Refer to “Limit Switch” in “DISASSEMBLY” section (page 7) for instructions.
Wiring is malfunctioning. If no continuity, check wire harness. Attach ohm meter leads to orange
and blue wires. Depress return switch.
If no continuity; replace wire harness, Part Number – CL¬712647SR.
Refer to “Drive Sprocket Assembly” in “DISASSEMBLY” section (page 8)
for instructions.
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