Specifications

At the left end of the Z drive shaft is a pulley, driven by a belt, which in turn is
driven by the Z drive motor. Also at this end of the Z drive shaft is an in-line shaft
encoder which detects rotational position of the shaft.
The alignment and calibration of this mechanical system is critical for proper
operation of the EMC 10/4 Embroidery Peripheral.
Z Drive Motor Belt Tension
Note: This procedure requires the use of a special service tool: a Gates 5M
Tensiometer.
1. Loosen the 4 socket head cap screws securing the Z motor to the motor support
bracket.
2. Place the Gates 5M Tensiometer midway on one side of the belt.
3. Push down on the motor and, when the reading on the tensiometer is at 15,
tighten the socket head cap screws.
4. After the screws are tightened, check the tension again to verify the proper
measurement was maintained.
Synchronizing The Embroidery Heads
Head synchronization is very critical in maintaining proper stitch timing for all four
heads. Without head synchronization, the embroidery quality for those heads that
are not in sync with the rest will become very marginal, if they make stitches at all.
To sync the heads, refer to the following procedure:
Z Motor socket
head cap screw
(1 of 4)
Z Drive Motor
Gates 5M Tensiometer
positioned midway on
the belt
Z Drive Belt
Z motor bracket
Figure 2 - 12
Z Drive Mechanical System 2 - 13
110305-01, Rev A 2. Service Adjustments