BACKWASH TIMER (SOLID STATE)

Figure 320. Backwash Timer Adjustment - cont

Figure 3-21. Backwash Timer (Schematic) (USMC)

TM-10-4610-215-24 Water Purification Unit Reverse Osmosis 600 GPH Trailer Mounted Flatbed Cargo 5 Ton 4 Wheel Tandem ROWPU 600-1 (EIC-ZII) Manual
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TM 104610-215-24 TM 08580A-24/2 n. Reconditioning Cycle Length Adjustment. WARNING (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) ELECTRICAL HIGH VOLTAGE Electrical high voltage can cause serious injury or death. Some tests performed in testing require power to be connected. Always take proper measures to ensure personal safety. Depress latch (2) figure 3-18, sheet 1 of 2) and remove timer mechanism (17) from timer case (1). Loosen setscrew (33), but do not remove. Position black cam (28) to read 0 minutes. Position second cam (30) the desired minutes away from 0 minutes. Position brine refill dial (5) (figure 3–20, sheet 2 of 2) to desired time for second backwash cycle. Position third cam (30) (figure 3–1 8, sheet 1 of 2) to desired time for the OFF cycle. Position fourth cam (31) to desired time for purge cycle. Tighten cam setscrew (33) when all adjustments have been made. Rotate extra reconditioning knob (7) (figure 3–20, sheet 2 of 2) to IDLE position. Position pilot valve controller cam (1) (figure 3–20, sheet 1 of 2) to the service (SR) position. Install timer mechanism (8) (figure 3–20, sheet 2 of 2) in case. Run tests required to assure proper adjustments have been made. 3-21. BACKWASH TIMER (SOLID STATE). a. General. The backwash timer automatically starts and ends the different stages of the backwash cycle of the multimedia filter. Each stage of the cycle time can be adjusted to suit a wide range of water types and operating conditions. This paragraph describes the disassembly, cleaning, inspection, repair, and reassembly of the solid state timer. Refer to (figure 3–21 ) for schematic. 3 - 96

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