2-68. TIMER REPLACE (Models WPES-10, WPES-20 and WPES30).
This task consists of:
General Mechanics Tool Kit (Appendix B, Section III, Item 5)
Lockwashers (TM 10-4610-241-24P)
Power shut down (Power Source Manual).
Tag wires (1), attached to right side of terminal board (10).
Loosen screws, holding wires (11) to terminal board (10), and remove tagged wires.
Unscrew nut (15) from adapter (16) and remove cable assembly (12) from timer (9).
As required, remove seal (13), seal ring (14) and nut (15) from cable assembly (12).
Remove nut (17) and adapter (16) from timer (9).
To facilitate installation and prevent malfunction of equipment, be sure to tag and
identify each flexible tube (see tubing diagram) before disconnecting from stager. To
replace timer, disconnect tubes at timer only.
Tag tubes (1) and unscrew from timer (9).
Disconnect electrical cable (2) from cable ( 12).
Unfasten six latches (3) and open cover (4).
Holding timer (9) with one hand, to keep it from falling, remove two screws (5), lockwashers (6) and flat
washers (7). Remove bracket (8) from inside of timer (9).
Remove timer (9) from ROWPU.
Tagging cable wires, noting their connection points will facilitate installation. Be sure to
transfer tags to replacement parts before discarding tagged parts or turning them in to
2-264 Change 1