L. Screw
M. O-ring
N. Electronics stack
O. Flash PROM
2. With two hands or strap wrench, turn cover (A) counterclockwise to loosen.
Unthread and remove cover.
3. Inspect O-ring (M) for wear or damage. Replace O-ring if damaged.
Remove Flash PROM
Complete the following steps to remove the Flash PROM from the OCX 8800.
CAUTION!
EQUIPMENT DAMAGE
Electrostatic discharge (ESD) protection is required to avoid damage to the electronic circuits.
Procedure
1. Locate the Flash PROM access port in the electronics stack (5, Figure 9-22).
2. Use a suitable IC removal tool to remove the Flash PROM (6).
Remove LOI module and board
Complete the following steps to remove the LOI module and board from the OCX 8800.
1. Remove three screws (7, Figure 9-22).
2. Carefully lift LOI module (8) from LOI board (9).
Note the location of LOI connector.
3. Remove two screws (11) and lockwashers (12). Remove LOI board (9).
Remove electronics stack
Complete the following steps to remove the electronics stack from the OCX 8800.
1. Unplug power cable, signal cable, and solenoid lead connectors from terminals of
electronics stack (5, Figure 9-22).
2. Remove two screws (13) and lockwashers (14).
3. Remove electronics stack (5).
Remove solenoid valves
Complete the following steps to remove the solenoid valves from the OCX 8800.
1. Disconnect solenoid leads from mating terminal connector.
2. Remove top nut of solenoid valve (15 or 16, Figure 9-22).
3. Remove the solenoid coil assembly and washer.
Maintenance and service
250 OCX 8800
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