Download Melco EMT 10/4T Specifications

Y Motor Belt Replacement
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10. Rotate the four socket head cap screws until the slack is taken up between the
screw head and the associated hardware. DO NOT, however, tighten the four
socket head cap screws at this time.
11. Locate a length of strong cord or cable sufficient to loop over the motor pulley
with four to six inches of cable hanging below the motor.
12. Loop this cable around the motor pulley between the belt and the pulley flange
nearest the motor body. Tie the ends of the cable together.
13. Position a 0 to 40 lb. spring scale into the cable loop and pull down with the
spring scale until the scale reads 30 to 35 lbs. With the pull tension still applied
with the spring scale, tighten the attaching socket head cap screws securing the
motor to the bracket.
14. Reattach the two motor harnesses and after positioning the excess harnessing
into the harness way, reinstall the harness way cover.
15. Reattach the encoder harness to the motor (see diagram in Figure 2-14) and
reinstall any and all covers removed during this procedure.
Y Motor Belt Replacement
It is recommended that a Melco-trained service technician perform this procedure.
Replacing the Y motor belt requires a major disassembly of the Y drive system. After
removing all the machine rear covers the Y shaft must be moved to the middle for
the Y motor belt to be remove around the end of the shaft. To move the shaft all
pulleys on the shaft must be loosened, and then an adequate reassembly of the Y
drive system must be performed.
Tools Required: A zero to 40 lbs. spring scale, 12 inch length of strong cord or
cable, and a set of socket head wrenches.
1. Turn the peripheral OFF and unplug the power cord from the source voltage.
2. To gain access to the Y shaft area, remove all the screws that secure the rear
covers to the frame and to each other. Lift the cover pieces out of position and
set them aside.
3. Remove the two socket head cap screws and associated hardware holding the Y
motor/belt cover around the motor pulley and belt area (see Figure 2-14).
Remove the cover.
4. Loosen the four socket head cap screws holding the Y motor to the motor
bracket (see Figure 2-14).
5. Tilt the motor slightly to allow the motor belt to slip off the motor drive pulley.
110279-01, Rev B
2. Service Maintenance (except head and trimmer)