854DX Electric Bender
Greenlee / A Textron Company
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
11
Service Instructions
(cont’d)
Front Sprocket Assembly
1. Remove the front drive chain (refer to previous
instruction).
2. Screw in the three set screws securing the spindle
cap about four turns and pull off the cap.
3. Push the sprocket fully inward to gain access to the
retaining ring.
4. Remove the retaining ring and large washer.
5. Slide the sprocket weldment off the bender.
6. Reassemble in reverse order noting the following:
a. With the sprocket pushed back against the
frame, press the outer part of the torque arm into
the slot of the spindle cap along the axis of the
spindle. Slide the sprocket fully outward while
fitting the cap into the spindle.
b. Do not tighten the set screws so they protrude
beyond the outer diameter of the spindle.
Encoder Assembly
1. Remove front sprocket assembly (refer to previous
instruction).
2. Remove the outer control box (refer to previous
instruction).
3. Disconnect the encoder cable and pull cable out of
inner control box bushing.
4. Screw in the three set screws securing the encoder
mount about four turns and pull out the mount
complete with encoder and cable. Feed the cable
through the spindle while pulling the encoder mount
out.
5. Pull off the encoder cable.
6. Remove the encoder cover by prying out the plastic
locking tabs.
7. Remove the two socket head screws securing the
encoder case.
8. Pull the encoder magnet off the shaft.
9. Loosen the set screw securing the torque arm and
remove it and the thrust washer.
10. Pull out the encoder shaft.
11. Reassemble in reverse order noting the following:
a. Press the magnet onto the shaft 0.002" from the
base.
b. After securing the torque arm to the shaft,
ensure that the shaft turns freely.
c. Pry the decorative cap from the rear end of
the spindle shaft to gain access for feeding
the encoder cable through the grommet to the
control box.
