14 Type 1 Fittings Maintenance Procedure - Inlet Valve 1. Accessing and removing 2. Accessing and removing the diaphragm the diaphragm washer washer on the Roca A3I Inlet valve on the Roca A3I Inlet valve 2a 2a Hold the blue retaining nut on the top of Filter inside the inlet the valve and turn in an upward direction valve thread can be easily to release lock. removed with a pair of long nose pliers clean with a soft brush to remove any deposits, rinse with warm water and refit as 2b 2b Holding the white cover required. arm pull in an outward direction and twist 90 degrees to remove. 2c 2c Access to black circular diaphragm washer can now be gained. 2d 2d To remove the diaphragm washer use a pair of long nose pliers. To clean use warm water. 2e 2e Return the component housing back to the main stem ensuring the cut out in the white plastic connector aligns with the grey nodule to accept it on the stem body. Push into position, past the black ‘o’ ring seal and fix blue retaining nut, this time to lock in to position, twist in a downward direction. 2f 2f I MPORTANT – When assembling the components back together, ensure that the ‘Y’ shaped clip that fits on to the threaded Float height adjusting rod is securely fastened. Failure to do so will prevent the valve from shutting off For Customer Service and Aftersales assistance, please contact Roca Head Office on 01530 830080