Training Guide Course No. 196514
Level 2 Maintenance, X-1000 Series Dispensing Systems 5-52 P/N 196515 (Revision A)
Exercise Sheet 5-9-1
Removing a Servo Amplifier
Tools and Materials Needed
:
3-mm Hex Key Small A-frame Ladder
ESD Grounding Strap Removable Thread Locker (P/N 40-0019)
Torque Wrench
All components and fasteners removed during this procedure should be
retained in an orderly manner and in a safe location for reinstallation or
shipment back to Asymtek. The faulty Servo Amplifier should be returned
to Asymtek,
1. Perform a Service Shutdown as detailed on page 1-11 of this manual.
The Capacitors on the XY Servo Interface PWA present an extreme shock
hazard. Before removing the Servo Shelf Cover, wait at least one minute
after system shutdown to allow the Capacitors to discharge to safe levels.
When removing the Servo Shelf Cover, avoid contacting the electrical and
pneumatic components on the Servo Shelf or they may be damaged.
2. Loosen the two captive, slotted thumbscrews holding the Servo Shelf Cover in place.
Carefully remove the Servo Shelf Cover by pulling it outward and upward. (See
Diagram Sheet 5-8-1 on page 5-47).
3. Position the ladder at the back of the dispensing system.
4. Locate the Power Indicator LEDs on the XY Servo Interface PWA and verify that
they are no longer illuminated.
Lighted LEDs indicate that electrical power is still present in the system. Wait
until all LEDs go out before proceeding.
5. Identify which Servo Amplifier needs to be replaced. The X Servo Amplifier is on the
left (closest to the Light Beacon). The Y Servo Amplifier is on the right (See Diagram
Sheet 5-8-2 on page 5-34).
6. After verifying that all of the cables on the Servo Amplifier are clearly labeled,
disconnect all of the cables attached to the Servo Amplifier.
Label the cables if necessary.
7. Remove the two 3-mm socket head cap screws holding the Servo Amplifier in place
right (See Diagram Sheet 5-8-2 on page 5-34).
Note the orientation of the Servo Amplifier to make reinstallation easier.
8. Remove the Servo Amplifier.
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