44 Bender Operation Manual
SYMPTOM / CONDITION
POSSIBLE CAUSE
CORRECTIVE ACTION
BAS models - The bending ram
continues retracting even after the rear
limit switch is activated. Pressure builds
up on the sequence valve gauge.
The rear limit switch is malfunctioning.
Check wire connections on the rear limit
switch. Refer to diagram on page 50.
Check micro switch with ohmmeter as
described on page 43. Check for broken
or disconnected wires. Replace if faulty.
The solenoid valve spool is stuck.
Manually operate the solenoid valve using
the manual control buttons. This should
dislodge any debris that may have become
stuck in the valve body.
BAS models - Both foot switches function
properly. The BLUE control button works
only when held in. The GREEN control
button does not function at all.
The RED control button or relay is
stuck, shorted, or malfunctioning.
Remove and replace the RED control
button or faulty relay.
BAS models - Both foot switches are
inoperative. The bending die retracts past
the rear limit switch and the system
pressure builds up and the bender
groans. If the RED control button is
pushed, then the ram will advance
automatically until reaching the depth-of-
bend switch. At this time it will then
retract past the rear limit switch again
and the system pressure will build.
The GREEN control button or relay is
stuck, shorted, or malfunctioning.
Remove and replace the GREEN control
button or faulty relay.
BAS models - The GREEN control
button retracts the top cylinder when
held in. Does not advance with right
foot switch control.
The depth-of-bend switch is stuck,
shorted, malfunctioning.
Check wire connections on depth-of
bend limit switch. Refer to diagram on
page 50 Check micro switch with
ohmmeter as described on page 43.
Check for broken or disconnected wires.
Replace if faulty.
BAS models - (Stuck in forward mode)
The BLUE and RED control buttons are
inoperative. The GREEN control button
retracts the top cylinder when held in.
When the GREEN control button is
released, the top cylinder will advance
then retract upon reaching the depth-of-
bend switch.
The right foot switch is stuck, shorted,
or malfunctioning.
Check wire connections on right foot
switch. Refer to diagram on page 50.
Check micro switch with ohmmeter as
described on page 43. Check for broken
or disconnected wires. Replace if faulty.
BAS models - (Stuck in reverse)
The top cylinder will advance with the
right foot switch or if the GREEN control
button is held in, but immediately retract
if either is released.
The left foot switch is stuck, shorted,
or malfunctioning.
Check wire connections on the left foot
Refer to diagram on page 50.
Check micro switch with ohmmeter as
described on page 43. Check for broken
or disconnected wires. Replace if faulty.
BAS models -The motor runs but the
are inoperative.
The fuse is blown on the control
board.
Remove control board and check fuse.
3-Phase models - The motor is
running backwards.
Check motor rotation. See page 44.
The power supply is incorrect.
Check voltage supply, phase and wiring.
Refer to wiring instructions found on
page 7 & 43.
Содержание Blue Bullet 1302-BAS
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