SHIMPO 921A - Manual (Page 18)

TRICOR Systems Inc.
2.8
WARNING
DO NOT TOUCH THE TRANSDUCER TIP DUR-
ING HANDLING OR INSTALLATION/REMOVAL
OR PERMANENT DAMAGE MAY RESULT.
Use proper ESD Handling procedures during
installation/removal and handling/packaging (anti-
static) the force transducer assembly. Failure to
comply may result in damage to the equipment.
The transducer assembly consists of the force transducer, the force trans-
ducer circuit card assembly (CCA) and the CCA/transducer interconnect
cable.
To remove the transducer assembly from the precision drive mechanism,
remove the cover from this assembly as described in Appendix B, step 1.
Remove the five (5) screws holding the left side plate to the back plate of the
precision drive mechanism (Figure 2.5). Loosen the two (2) screws securing
the harness connector to the force transducer CCA, then disconnect this
connector (Figure 2.6). Remove the four (4) screws securing the force trans-
ducer CCA to the side plate (Figure 2.6). Carefully cut the tie wraps securing
the force transducer assembly interconnect cable to the platform tie downs
(Figure 2.7). Support the force transducer and remove the two (2) mounting
screws (Figure 2.8). Carefully remove the transducer assembly. Bubble
wrap and protect the force transducer/tip. Place the transducer assembly in
an antistatic bag for ESD protection.
Install the new transducer on the precision drive mechanism in the reverse
order of removal above. Be sure to secure the transducer interconnect cable
to the tie downs, with tie wraps, as shown in Figure 2.7. The critical tie down
area is the first tie down nearest the transducer. The cable must be secured
to this tie down using two (2) tie wraps, 90
o to each other, and tightened
securely. The cable should not be able to be slide through this tie down if
pulled with moderate force. The cable from the transducer to this tie down
also cannot drag or come in contact with any surface during platform move-
ment, or the system will not operate properly.