Operation - Greenlee 855 Instruction Manual

Operation — Installing and Bending Conduit (cont'd)
1-1/2" and 2" EMT, IMC, and Aluminum
Rigid Conduit
Note: For aluminum rigid conduit, set squeeze to
minimum position.
Press or jog the BEND key while engaging the roller
system using the support roller engagement handle.
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 compensated for springback. As the conduit
approaches 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.
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, lift up on
the cam while supporting the handle, and allow the
handle to retract slightly. Reposition 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.
UNLOADING
When the conduit is bent to the desired angle, press the
UNLOAD key until the shoe has rotated back about 10
or more degrees. Twist the conduit to free it from the
hook and remove it from the shoe. Continue to press
UNLOAD and the bender will automatically stop at the
best position for end-loading the next conduit. If you
want to side-load the conduit (or use the opposite side
of the shoe), you need to unload beyond this point. To
do so, simply release the UNLOAD key and press it
again. The bender will proceed to unload. Release the
UNLOAD key when the shoe has rotated to the desired
position.
Greenlee Textron / Subsidiary of Textron Inc.
855 Smart Bender™
MAKING ANOTHER BEND
To make another manual bend, proceed as you did with
the first one. To make another programmed bend of the
same size, type and angle, load and bend the conduit
just as you did the previous one. You may change the
programmed angle and make a bend to the new angle
without any additional changes. You can also change
the size and/or type of conduit and bend to the previous
angle; however, if your change requires using the
opposite side of a shoe, you need to use the UNLOAD
key to index the shoe. Do not use the BEND key to
index the shoe. Using the BEND key will cause the
bender to stop at the programmed angle. Pressing
CLEAR will eliminate this, but you will need to repro-
gram the bend.
MAKING A FULLY PROGRAMMED BEND
ON DELUXE PENDANT
Select the size and type of conduit to be bent as previ-
ously instructed. Select the type of bend you wish to
make, using one of the three bend type keys (STUB,
OFFSET or SADDLE). Enter the angle to be bent to,
using the numerical keys (0 to 9). Press ENTER. The
decimal key is not used for angles. Enter the height of
the stub, offset or saddle, using any of the 11 numerical
keys. Press ENTER. The height is from the bottom of
the conduit to the center of the end of the conduit for
stubs, and from the bottom of the conduit to the bottom
of the second bend for offsets and saddles. If you are to
make an offset or saddle, enter the length of it using the
11 numerical keys. Press ENTER. The length is from
the end of the conduit to the beginning of the first bend
for offsets, and from the end of the conduit to the middle
of the saddle for saddles. The display screen will show
where to make your alignment marks. Place mark 1 on
the conduit the distance shown from the end of the
conduit. For offsets and saddles, place mark 2 the
distance shown from mark 1. For saddles, place mark 3
the distance shown from mark 2. Set Home Position if
required. Insert the conduit into the proper shoe groove
and hook and align mark 1 with the outside edge of the
hook.
Accuracy Adjustments on Deluxe Pendant
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 RESET and then press
0 three times. PROGRAMMING MODE will appear on
the third line of the display. Enter the desired size and
type of conduit. The screen will show the current adjust
angle for the selected size and type of conduit and
display ENTER NUMBER OF DEGREES TO CHANGE
(USE . FOR NEGATIVE). Use the numerical keys and
enter the desired change in absolute value to the
current adjust angle. The . (decimal) key toggles the
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