Dekker HullVac HV55A Installation, Operation & Maintenance Manual

Dekker HullVac HV55A Installation, Operation & Maintenance Manual Manual pdf 22 page image

DEKKER Vacuum Technologies, Inc. – HullVac / September 2016 22Oil Change ProcedureRun the pump until normal operating temperature is achieved. (140-160°F as measured on the oil solenoidvalve). Run the pump for at least 1 hour prior to draining the oil. This will warm the oil to facilitate fasterand more complete draining. CAUTION: OIL WILL BE HOT!Follow these steps to drain the oil: Disconnect main power to pump. Vent the inlet to atmosphere for 10 to 15 seconds. This will force the oil from the lower pumpingchambers into the upper reservoir. Open the oil drain valve and allow the oil to drain completely. Close the oil drain valve and rotate drive belts by hand with the inlet open to atmosphere for 5 – 10rotations, then open the drain valve again to scavenge residual oil. This will force residual oil from thepumping chamber into the oil reservoir where it can be drained.Follow these steps to fill with new oil: Close the oil drain valve and fill the reservoir to the 2/3 site-port level by pouring oil through the oilfill port located on top of the pump. Reconnect main power to pump. Close the inlet isolation valve so that the pump is blanked-off. Run the pump for 2-3 minutes. Checkthe oil level. Add oil until the site port level is between 1/2 and 2/3 level in the site port. If overfilled, open drain todrain off excess and re-run unit to confirm oil level. The approximate oil capacities are given in the Standard System Capacities table below.Standard System CapacitiesSystem Capacity (gal)HV55A 0.9HV140A 3.3HV160 4HV412XT 12HV450 13HV635 15HV850 25HVC35A 0.9HVC65 2.5HVC100A 3.3HVC180 6.5HVC340 20