Greenlee 555 Series Service Manual page 9

Service Instructions (cont'd)
6. Reassemble in reverse order noting the following:
a. Use new cotter pins to attach the drive chain.
b. A new chain will be tight. Place one end of the
chain at 10–11 o'clock position and wrap the
remainder over the top of the big sprocket,
down and around the drive sprocket, and back
up to the big sprocket. Ensure that there is no
slack anywhere and hold the chain against the
outside of the sprocket. Force the chain into the
sprocket teeth at the point where it first contacts
the sprocket. (A rubber hammer may be used to
persuade the chain.) While holding the chain in
the sprocket teeth, fit the rest of the chain onto
the sprocket. Fit the connecting link.
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.
Greenlee / A Textron Company
555 Series Electric Benders
®
Encoder Assembly
(DX only except for encoder mount)
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.
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.
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4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070