7. Grasp the force gauge body and push the gauge against the belt until the
plunger moves from the first mark at the edge of the wall to the second mark.
8. While holding the gauge at the second mark position described in the previous
step, read the scale on the gauge.
The reading should be 10 +/- 2.0 pounds.
9. If the reading on the gauge is not within the specified range, the belt needs to be
adjusted. Refer to Figure 2-18 and locate the two motor bracket securing socket
head cap screws and the belt tensioning socket head cap screw.
10. Slightly loosen the two motor bracket securing screws socket head cap.
Note: The screws should remain snug yet not so tight that the motor bracket will
not move when the belt tensioning screw is rotated.
11. If the belt tension is too loose, rotate the belt tensioning socket head cap screw
slightly clockwise to cause the motor bracket to be pulled downward thus
increasing tension on the Y motor belt.
If the belt tension is too tight, rotate the belt tensioning screw slightly
counter-clockwise to allow the motor bracket to move upward to reduce the
belt tension.
12. After moving the motor bracket in the previous step, retighten the two motor
bracket securing socket head cap screws and check the tension again.
13. Repeat this procedure until the proper tension is attained.
Y Drive Belt
There are two Y drive belts used on the the EMT 1: one associated with each of the
Y carriage assemblies at either side of the peripheral.
Replacement
To replace a Y drive belt, refer to the following procedure:
Caution! Never disassemble both Y carriage areas at the same time.
By doing so, the parallelism of the X beam with the Y carriages is
threatened and may require service by a Melco trained technician.
1. Turn OFF the peripheral and unplug the power cord from the source.
2. Remove the five truss head screws and the side cover (see Figure 2-19 of the
peripheral associated with the side where the belt is to be replaced.
Y Drive Belt
2 - 25
110344-01, Rev B
2. Service Maintenance (except embroidery head )