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TASK	Primary Contact	Secondary Contact	PERIOD (days)	NEXT MAINTENANCE	LAST MAINTENANCE
Roots Blower	keithb@jlab.org	bunton@jlab.org	365	11/29/24	11/30/23
Blower model- OKTA 500A mod #- PP W31 000A ser #- 21755330 Pfeiffer Vacuum Pump model- DUO 65 mod #- PKD 46 602B ser # - 21751899 Check oil level in both the roots pump and the backing pump, change if dirty. Test pump vacuum and record. Clean exterior of pumps and cart.Oil changed in Backing Pump on 11-28-2016. Pressure after 30mins run time 1.5 mtorr. Checked 2/8/2019 Oil is good 8/13/2021