Operation - Greenlee 855 Instruction Manual

Operation — Installing and Bending Conduit (cont'd)
Apply sufficient force on the handle so that the roller
system reaches its position against the stops before the
conduit starts to bend. Supporting the tail end of a long
conduit may ease engagement when bending vertically.
Continue to press the BEND key while maintaining
conduit alignment until slack is taken up. When the
conduit starts to bend, the digital display starts to count
from zero and show the angle to which the conduit has
been bent. The angle displayed has already compen-
sated for springback. When you reach your desired angle,
release the BEND key. It might be beneficial to stop
slightly before the angle to account for reaction time and
motor braking time and then use the JOG key to advance
the bend in 1/2-degree increments to prevent
overbending.
A roller support lock has been provided to free up one
hand. Once the roller support engagement handle is
brought up into position, a locking cam holds the handle
in place and bending can proceed from this point
without further operator action on the handle. Lifting up
on the tail of the conduit makes roller engagement
easier. For 1-1/2" EMT, it may be easy to go past the
cam; if this happens, raise the cam by hand and rest the
handle against it. If you wish to change the position of
the conduit and it is held too tightly to move, rotate the
handle counterclockwise to disengage the cam. Reposi-
tion the conduit and relock in place. The UNLOAD key
will not function while the locking cam is engaged.
Note: If you are unable to raise the handle enough to
engage the locking cam even after lifting up on the tail
of the conduit or pushing down on the nose, the
squeeze is probably set too high. If the handle easily
passes by the cam on 2", the squeeze is probably set
too low.
PROGRAMMED BENDING
Press the ANGLE SELECT UP key to place an angle
into memory. Pressing it momentarily advances the
stored angle 1 degree at a time. Holding it down rapidly
advances the angle. Release it when the desired angle
is obtained. Use the ANGLE SELECT DOWN key to
reduce the angle in memory. It operates the same as
the ANGLE SELECT UP key does. The ANGLE
SELECT DOWN key can also be used to initiate putting
an angle in memory. For large angles, this would be
faster. Press the CLEAR key to remove any angle from
memory and set the display to 00. If an angle is stored
in memory, it will be displayed whenever the BEND,
JOG or UNLOAD keys are not depressed. [Press the
ANGLE key on the deluxe terminal and enter an angle
using the 10 numerical keys. The decimal is not used
for angles. Press ENTER to set the angle in memory.] If
an angle of 93 degrees is reached at any time while
pressing BEND or JOG, the bender will stop to prevent
accidentally running a hook into the conduit. Always use
the UNLOAD key to rotate the shoe to the desired
position.
Greenlee Textron / Subsidiary of Textron Inc.
855 Smart Bender™
Accuracy Adjustments
Due to variations in conduit, you may notice the bender
consistently over or under bending a particular size and
type of conduit. Programmed adjustments can be made
to compensate for over and under bending conduit.
Minus 9 to 9 degree adjustments can be made for each
size and type of conduit. Press and hold CLEAR and
then press and hold BEND until Pr is displayed.
Release the keys and adjust the degrees of bend by
pressing the ANGLE SELECT UP or ANGLE SELECT
DOWN keys. ANGLE SELECT UP increases and
ANGLE SELECT DOWN decreases the bend angle for
the size and type of conduit selected by the rotary
selector switches. CLEAR resets the adjust angle to
zero. Any adjust angle may be displayed by setting the
rotary selector switches to the desired size and type of
conduit while in the Accuracy Adjust programming
mode. Press BEND to save the adjust angle and exit
the Adjust mode. Only changes to the last displayed
value will be saved. Changes saved are to permanent
memory in the bender and can only be changed by
reprogramming. The pendant will display oP for two
seconds when the bender returns to the normal operat-
ing mode.
1/2" to 1-1/4" Conduit
Press the BEND key while maintaining conduit align-
ment until slack is taken up. When the conduit starts to
bend, the digital display starts to count from zero and
show the angle to which the conduit has been bent. The
angle displayed has already compensated for
springback. As the conduit approaches the programmed
angle, the bender slows and then stops at the pro-
grammed angle. Releasing the BEND key at any time
during the bend stops the bender. The bend can then
be resumed from the point it was stopped. After stop-
ping at the programmed angle, the BEND key will
function if released and pressed again. The JOG key
can be used to bend beyond the programmed angle in
1/2-degree increments.
1-1/2" and 2" Rigid and 40 Mil PVC-Coated
Rigid Conduit
Make sure that the rollers are in the fully retracted
position to the right. Press the BEND key while main-
taining conduit alignment until slack is taken up. When
the conduit starts to bend, the digital display starts to
count from zero and show the angle to which the
conduit has been bent. The angle displayed has already
compensated for springback. As the conduit ap-
proaches the programmed angle, the bender slows and
then stops at the programmed angle. Releasing the
BEND key at any time during the bend stops the
bender. The bend can then be resumed from the point it
was stopped. After stopping at the programmed angle,
the BEND key will function if released and pressed
again. The JOG key can be used to bend beyond the
programmed angle in 1/2-degree increments.
15 4455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070