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ES1600 REV A.
BFMMRP4ALBF
FIGURE 2
FIGURE 3
(SENSING HOSE NOT SHOWN)
Open test cocks #2, #3, and #4 to relieve pressure from the device. Both shut-off valves must be closed.
A.
CHECK REMOVAL
Note: If the first check disc needs only to be cleaned, it is not necessary to remove the entire check module from the valve body. See
the next section, “Check Maintenance”, for seat disc cleaning instructions.
1. Remove the cover clamp by backing off the reusable locknut until the latch can be disengaged from the T-bolt. Pull the clamp apart and slide
away from the valve. (See Figure 2)
2. Lift off the cover. A flat screwdriver will aid in lifting the cover out of the body. Screwdriver slots are provided on the perimeter of the cover. The
first check must be removed first and then the second check may be removed.
3. Remove the check-retaining clip by pinching the clip ears together. This will disengage the clip from its groove. Remove clip and check-retaining
ring. Pull check module straight out of body. The check module is sealed in place with an o-ring. (See Figure 3)
B. CHECK MAINTENANCE
If only cleaning of the first check is necessary, simply remove the three (3) reusable locknuts for 2-1/2” & 3” valves / four (4) nuts for 4” & 6”
valves on the black plastic disc retainer (See Figure 4). SUGGESTION: Place a rag over the relief valve opening inside the valve body to prevent
the locknuts from falling into the relief valve. Remove the check handle and washer and lift the disc retainer and disc out of the body. Rinse
the disc with clean water or replace if necessary. The disc may be flipped over for a temporary repair, but should be replaced if damaged.
Replace the disc, disc retainer, washer, handle, and nuts. Do not over tighten locknuts.
NOTE: The springs are factory installed and should not be removed or adjusted. Serious injury could occur if springs are disassembled.
IV.
MAINTENANCE INSTRUCTIONS - 2-1/2” – 6”
FIGURE 4
2-1/2” - 6” SIZES
