ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
0060 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
OPERATING CONTROL SYSTEM SUB PANEL
PLC Processor Module and Memory Module Replacement:
Parts:
PLC processor (TM 10-610-309-24P)
Memory module (TM 10-610-309-24P)
Equipment Condition:
Army TWPS: Generator off and TWPS main breaker off
Marine Corps TWPS: TWPS disconnected from power source
Replace the PLC processor module and/or the memory module inside the processor as follows:
WARNING
Electrical hazard. Army personnel: make sure that the generator is off and the
TWPS main breaker is off before working on the control panel. Marine Corps
personnel: make sure that the TWPS is disconnected from its power source before
working on the control panel. Failure to observe this warning could result in
serious injury or death from electrical shock.
1.
Open the cover to the OCP (see Figure 1).
2.
Remove the 14 screws that secure the OCP and swing the instrument panel open.
3.
Locate the processor inside the 13-slot chassis that is to be replaced.
4.
Remove the processor and memory module as follows (see Figure 3):
CAUTION
Electronic components are sensitive to electrical static. Discharge any electrical
static before handling. Failure to do so may damage the components.
a.
Touch any metal portion of the TWPS chassis to discharge any electrical static.
b.
Open the compartment door of the processor.
c.
Pull the upper terminal block with its connected wiring off the processor module.
d.
Loosen the two screws that hold the lower terminal block in place then pull the lower
terminal block off the processor module.
e. With one hand on each end of the processor, press the release tabs and evenly pull the
processor out of the 13-slot chassis.
f. Locate the memory module on the processor.
g. Gently pull the memory module from the processor.
0060 00-4
