Specifications

Z Motor Replacement
"FACTORY SERVICE ADVISED" Special tools are required for proper adjustment.
Note: This procedure requires the use of a special service tool: a Gates 5M
Tensiometer.
1. Turn the main power OFF, and remove the power source cable from the power
supply assembly.
2. Remove the #4 rear cover, then the #5 rear cover (refer to the procedure for
cover removal if information is needed).
3. Disconnect the Z motor harnesses from the associated in-line XYZ driver harness
connections.
4. Remove the four socket head cap screws attaching the motor to the motor
support bracket (see Figure 3-16).
5. Tilt the motor slightly to allow the drive belt to slip off the motor drive pulley and
remove the motor from the support bracket.
6. Loosen the pulley set screws and remove the pulley from the motor shaft.
7. Place the pulley on the new motor shaft and, before tightening the pulley set
screws, perform the next steps to insure the motor shaft pulley is positioned so
the belt will ride in the middle of the two pulleys.
socket head
cap screws
(4 places)
Z Drive
Motor
Motor
Bracket
Z Drive Belt
Figure 3 - 16
Z Motor Replacement 3 - 19
110305-01, Rev A 3. Mechanical Disassembly