Nordson Encore Enhance Customer Product Manual

Contents

Nordson Encore Enhance Customer Product Manual Manual pdf 66 page image

Repair7-4Part 1614575-01 2019 Nordson CorporationSolenoid Valve ReplacementSee Figure 7-3. To remove the solenoid valves (7), remove the two screwsin the valve body and lift the valve off the manifold.Make sure the O-rings furnished with the new valves are in place beforeinstalling the new valve on the manifold.Proportional Valve CleaningSee Figure 7-3. A dirty air supply can cause the proportional valve (10) tomalfunction. Follow these instructions to disassemble and clean the valve.1. Disconnect the coil (2) wiring from the circuit board (6). Remove the nut(1) and coil from the proportional valve (10).2. Remove the two long screws (4) and two short screws (3) to remove theproportional valve from the manifold.CAUTION: The valve parts are very small; be careful not to lose any. Donot mix the springs from one valve with those from another. The valves arecalibrated for different springs.3. Remove the valve stem (11) from the valve body (14).4. Remove the valve cartridge (13) and spring (12) from the stem.5. Clean the cartridge seat and seals, and the orifice (15) in the valve body.Use low-pressure compressed air. Do not use sharp metal tools toclean the cartridge or valve body.6. Install the spring and then the cartridge in the stem with the plastic seaton the end of the cartridge facing out.7. Make sure the O-rings furnished with the valve are in place on thebottom of the valve body.8. Secure the valve body to the manifold with the long screws, making surethe arrow (5) on the side of the body points toward the outlet fittings.9. Install the coil over the valve stem, with the coil wiring pointing towardthe circuit board. Secure the coil with the nut and connect the coil wiringto the circuit board.Proportional Valve ReplacementSee Figure 7-3. If cleaning the proportional valve does not correct the flowproblem then replace the valve. Before installing a new valve, remove theprotective cover from the bottom of the valve body. Be careful to not losethe O-rings under the cover.