valutazioni - 2, GPA: 4
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Facilità d'uso
1 Y W 06431 . . Installation Mount the pump to suit the type of installation planned. Pump dimensions and mounting hole layout are shown on page 14. CAUTION The hydraulic supply system must be kept clean at all times to avoid damage to the motor and hydraulic power supply. Blow out all hydraulic lines with air and flush thoroughly with compatible solvent before connecting the lines to the motor. Always plug the hydraulic inlets, outlets, and lines when disconnecting them for any reason, to avoid introducing dirt and other contaminants into the system. Filters Be sure that your hydraulic power supply is equipped with a suction filter to the hydraulic pump and a system return line filter of 10 micron size. Carefully follow the manufacturer’s recommendations on reservoir and filter cleaning, and periodic changes of hydraulic fluid. Use only Graco-approved hydraulic oil. Hydraulic Lines Connect a 3/4 in. minimum ID hydraulic supply line (L) to the 3.4 npt inlet of the hydraulic motor. See the Typical Installation on page 7. Connect a 1 in. minimum ID return line (D) to the 1” npt return port on the hydraulic motor. On the hydraulic supply side (C), install the following accessories shown in Fig. 2, using adapters as necessary. . A shutoff valve (E) isolates the pump for service. . A fluid pressure gauge (F) to monitor hydraulic oil pressure to the motor and to avoid overpressurizing the motor or displacement pump, and a pressure- and temperature-compensated flow control valve (G) to prevent the motor from running too fast and possibly damaging itself. . A pressure reducing valve (H), with a drain line (K) running directly to the hydraulic return line (D). . An accumulator (J) to reduce the hammering effect caused by the motor reversing direction. . A shutoff valve (E) isolates the pump for service. CAUTION Do not exceed 10 gpm (37.8 liter/minute) volume to avoid pump stalling. Drip Pan The hydraulic motor is equipped with a drip pan to collect any leakage that might occur. connect a 1/4 in. ID drain hose (Q) to the barbed hose fitting on the drip pan. Drain Valve Install a high pressure fluid drain valve (B) near the pump fluid outlet to relieve fluid pressure in the displacement pump and hose during shutdown. WARNING The fluid drain valve (B) is required in your system to help reduce the risk of serious bodily injury, including fluid injection and splashing in the eyes or on the skin if you are adjusting or repairing any part of the system. Triggering the gun to relieve pressure may not be sufficient. Fluid Supply Lines Connect a grounded fluid supply line to the 1–1/2” npt fluid outlet on the displacement pump. Attach a fluid supply line to the 2” npt pump fluid intake. If you are pumping through a long hose, or if the fluid being pumped is compressible, giving an accumulator effect, install a check valve at the pump outlet. Be sure that the check valve selected is capable of handling the flow and pressure developed in your system. . . Installation C N Q B R A M D L K JHFE P G S T KEY ABCDEFGHJ Fluid Hose to Gun Fluid Drain Valve Suction Hose Hydraulic Return Line Hydraulic Return Shutoff Valve Pressure Gauge Flow Control Valve Pressure Reducing Valve Accumulator K L MN PQR ST Drain Line (from pressure reducing valve) Hydraulic Supply Line Hydraulic Power Supply Ground Wire Wet-Cup Drain Line (from motor drip pan) Check Valve Hydraulic Supply Shutoff Valve Return Line Filter Fig. 2 . . Operation Pressure Relief Procedure WARNING INJECTION HAZARD Fluid under high pressure can be injected through the skin and cause serious injury. To reduce the risk of an injury from injection, splashing fluid, or moving parts, follow the Pressure Relief Procedure whenever you . Are instructed to relieve the pressure . Stop spraying/dispensing . Check or service any of the system equipment . Install or clean the spray tips/nozzles 1. Engage the safety latch. 2. Shut off the power supply to the hydraulic motor. 3. Disengage the gun safety latch. 4. Hold a metal part of the gun firmly to the side of a grounded metal pail. Trigger to relieve pressure. 5. Open the fluid drain valve (required in your system) having a container ready to catch the drainage. Leave the drain valve open until you are ready to spray again. If you suspect that the spray tip or hose is completely clogged, or that pressure has not been fully relieved after following the steps above, very slowly loosen the tip guard retaining nut or hose end coupling and relieve pressure gradually, then loosen completely, then clear the tip or hose. CAUTION When shutting down the hydraulic system, always shut off the hydraulic supply line shutoff valve (S) first, and then the return line shutoff valve (E). This is to prevent overpressurizing the motor or its seals. When starting the hydraulic system, open the return line shutoff valve first. Flushing the Pump Flush the pump before using it for the first time to remove the lightweight oil which is left in the pump after facto...