US VACUUM DURAVAC RP Series, Руководство по установке и эксплуатации

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SOLENOID VALVE (CON”T)
Foreign matter will cause the valve to stick, jam or leak. Any solenoid valve should be cleaned periodically. Solenoid
valves should be cleaned when the oil is changed due to contamination by foreign matter. Solenoids are designed for
use in relatively dry locations and in temperatures up to 115 Degree F. Weather-proof and special purpose solenoids
are available. There is always a slight hum when the solenoid is working; a slight click will be heard when the solenoid
opens properly as the core hits the plug at the tope of the core tube.
MAINTENANCE
Periodic Maintenance

DAILY: Visually check oil level in sight glass & color, oil flow through the solenoid & oil lines

Weekly: Check inlet filter

Every 3 Months/ 500-750 hours– Change oil

3000 Hours– Change exhaust filter.

Replace V-belt and Discharge valves

10,000– Replace bearings and seals. This is to be done by specially trained service personnel.
Change oil every 500-700 hours or as needed. Clean oil reservoir housing every 1000 hours to increase the life of the lubricating oil.
Darkening of the pump oil indicates pump wear or chemical reaction between the oil and the gases being pumped. White milky oil is
an indication of water contamination...use gas ballast to clear oil or change oil. Water can also be removed by draining water from the
pump (oil drain valve) before starting the pump.
DISCHARGE VALVES
Discharge valves are located inside the oil reservoir, under the oil baffle & valve plate. After draining oil from the pump, remove valve
assembly by removing the six (6) cap screws and valve gasket….inspect valve discs and springs for wear. Change if required.
Repair kits
RP-35: Pt#RKIT-RP35-RKIT
RP-50: Pt#RKIT-RP50-RKIT
Repair Kit includes bearings, shaft seals, gaskets, o-rings, discharge valves & misc. hardware .
NOTE:
US Vacuum Pumps LLC is not liable for operational failure due to mistakes made by non-US Vacuum
personnel during the installation/operation or the utilization of non-US Vacuum parts
Direct Drive Units
The RP35C & RP-50C pumps are available in Direct Drive configuration for specialty applications where a V-belt drive would be
objectionable. The direct drive system utilizes an inline gear reducer to reduce output rpm to the desired value depending on the
vacuum pump model selected. The gear box is sealed (non-vented) and uses an ISO 220 EP mineral oil. The initial oil fill is good for
10,000 hours , no initial oil change required after break-in. Ambient temperature limits 10F-105F for the gearbox, but the vacuum
pump itself is limited from 55F-105F...cold starts on the vacuum pump can lead to high motor running current and/or stalling.
The gearbox is a single reduction unit, therefore the motor/gearbox input shaft rotation is opposite the vacuum pump. Motor rotation
(fan end) is clockwise.