2-77. MULTIMEDIA FILTER MAINTENANCE.
Unit level maintenance of the multimedia filter consists of replacement of the timer, control valve, and diaphragm valve
To aid maintenance, the diaphragm valve can be repaired while installed.
2-78. TIMER MAINTENANCE.
This task consists of
General Mechanics Tool Kit (Appendix B. Section III, Item 5)
Lockwasher (2) - MS35338-139
ROWPU shutdown (TM 10 4610-240-10).
Power shutdown (power source manual)
Unfasten six latches (2) and open cover (14).
Disconnect electrical cable (5) from terminal board (3). Loosen sealing grip (4) and pull
cable from timer (1).
Disconnect electrical cable (5) from electrical cable (6) .
To aid installation and prevent malfunction of equipment, be sure to tag and
identify each flexible tube before disconnecting tubing from stager.
Tag and disconnect eight flexible tubes (8) from stager (7).
Remove two screws (12), lockwashers (11), flat washers (10), and bracket (13).