GSE 60 SERIES Technical Reference Manual page 523

2. If a lock is installed through the hasp on the right side of the Process
Controller enclosure, remove the lock.
3. Using a large, flat-tip screwdriver, loosen the spring-loaded 1/4-20
slotted pan head screws in the two fastening clamps on the right side
of the Process Controller, and slide the clamps to the right.
4. Open the Process Controller door.
5. Remove the RF cover.
6. If the optional shield housing is installed on the back of the door, use a
7 mm (9/32 in) nut driver to remove the 13 hex nuts that secure it, and
then remove the housing. The housing must be removed to gain
access to the door-mounted hardware.
7. Locate the plate that covers the opening for the Alpha Keypad Option.
The plate is near the lower left corner of the door interior on the 663
Process Controller.
8. Using a 7 mm (9/32 in) nut driver, remove the 10 hex nuts from the
studs that retain the cover plate.
Figure 13-26: Location of The Cover Plate on The 663
9. Remove the cover plate from the retaining studs.
10. Remove the gasket.
11. Remove the Alpha Keypad and other kit parts from the plastic bags.
12. Install the spacer over the retaining studs.
Options 13-47
60 Series Technical Reference Manual