Adjustments - Greenlee 855 Service Manual

Adjustments

Disconnect power supply before ser-
vicing bender. Servicing to be done
only by trained service technician.
Failure to observe this warning could
result in severe injury or death.
Squeeze
Proper squeeze adjustment for most 1-1/2" and 2" EMT
and IMC conduit is when the squeeze adjustment arm
is vertical (at middle hole). But variation in conduit can
result in wrinkling or side marking of conduit. If wrinkling
or excessive ovalness occurs, increase squeeze one
position (hole) counterclockwise. If loading conduit is
difficult or if excessive side marking occurs, decrease
squeeze one position (hole) clockwise.
Accuracy
If the accuracy of all sizes of conduit on one shoe is
off in the same direction, the limit switch needs to be
adjusted. Individual adjustments specific to one size
and type of conduit should be made using the Accuracy
Adjust mode. Refer to the "Troubleshooting" section.
To adjust the limit switches, first unplug the bender.
Remove the four screws that secure the top round
guard and remove the guard to expose the two limit
switches. The top switch controls the 1-1/2" to 2" shoe.
Loosen the two screws and move it to the right side of
the bender as shown in the diagram below to prevent
overbending. The bottom switch controls the 1/2" to
1-1/4" shoe. Loosen the two screws and move it to the
left side of the bender as shown below to prevent over-
bending. Move either switch the opposite direction if the
bender is underbending. Every 1/8" of switch movement
approximates 1 degree of change. Tighten the screws
and replace the guard.
1-1/2" and 2"
Limit Switch
Adj. Screws
Less Bend
Greenlee / A Textron Company
Less Bend
1/2" to 1-1/4"
Limit Switch
Adj. Screws
7
855 Smart Bender
Retention Cam
Loosen the screws securing the retention cam. With the
bender oriented in the vertical position, rotate the round
plate until the right side edge of the cam is pointed
straight down or within 1/4" left of being straight down.
Make sure both ends of the spring are engaged in the
holes of the cam and round plate. Tighten the screws
while holding the round plate in position with pliers to
prevent it from rotating.
Check to make sure the roller support handle will fully
engage and retract without catching on the cam holding
surface. This should be done in both the vertical and
horizontal bending positions. It should also be done with
the cam positioned as far left and as far right as friction
will allow it to stay.
Cam Holding
Surface
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
®
1/4"