MDE-4334C Atlas Start-up and Service Manual · April 2008
Page 7-59
Pumping Unit
Hydraulic/Mechanical Components
XU2A Pumping Unit for 9850K
Figure 7-30: XU2A Pumping Unit
Grease Fittings
Relief Valve
Adjustment Cap
Grease Relief Fittings
About the XU2A
Self-contained Gasboy Atlas 9850K models use the Blackmer XU2A pumping unit.
Note: For additional maintenance, servicing and troubleshooting information of the XU2A,
refer to MDE-4320 Gasboy UHF Pump Blackmer XU2A Rebuild Kit Installation
Manual.
General XU2A Service Procedures
Start-up Procedure
Note: Refer to
if problems occur during start-up.
1
Start the motor. Priming should occur within one minute.
2
Check the vacuum and pressure gauges to ensure that the system is operating within the
expected parameters. Record gauge readings for future reference.
