Ricoh FT7770 Service Manual page 276

4. Rear Wire Replacement
a. Insert the blue (upper tray)/yellow (lower tray) bead [A] of the new
wire into the slot of the drive pulley [B] and wrap the wire around
the drive pulley twice clockwise.
b. String the wire over all pulleys, except the tension pulley [C].
c. Wrap the other end of the wire around the drive pulley 2.5 times
clockwise and insert the bead into the slot of the drive pulley as
shown.
d. Insert the support beads [D] into the slots of the lift rods [E].
e. String the wire over the tension pulley.
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30 April, '89