BACKWASH TIMER. The backwash timer automatically starts and ends the different stages of backwash cycle.
Figure 2-15. Backwash Timer
(SOLID STATE TIMER)
Backwashing can be accomplished at any time without any preset conditions.
SECTION II. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
Before You Operate. Always keep in mind each CAUTION and each WARNING. Perform "BEFORE
OPERATION" (B) PMCS shown in tables 2-2 and 2-3.
While You Operate. For your own safety and for protection of the equipment pay attention to each CAUTION
and WARNING. Perform "DURING OPERATION" (D) PMCS shown in tables 2-2 and 2-3.
After You Operate. Perform "AFTER OPERATION" (A) PMCS shown in tables 2-2 and 2-3.
If The ROWPU Fails To Operate. Troubleshoot with proper equipment. Report difficulties, using the proper
forms. Army users see DA PAM 738-750; Marine Corps users refer to TM 4700-15/1.
Performing PMCS, tables 2-2 and 2-3, will help keep the ROWPU from breaking down.