Low source turbo speed on Xevo mass spec - WKB87470

SYMPTOMS

• Xevo low source turbo speed, will not reach 100%

ENVIRONMENT

• Vion IMS QTof
• Xevo QTof
• Xevo G2 QTof
• Xevo G2 Tof
• Xevo G2-S
• Xevo G2-S QTof
• Xevo G2-S Tof
• Xevo G2-XS
• Xevo G2-XS QTof
• Xevo G2-XS Tof
• Xevo TQ MS
• Xevo TQ-S
• Xevo TQ-S micro
• Xevo TQD
• Xevo TQ-XS
• SYNAPT G2
• SYNAPT G2 MS/HDMS
• SYNAPT G2-S MS/HDMS
• SYNAPT G2-Si MS/HDMS
• SYNAPT G2-S
• SYNAPT G2-Si
• SYNAPT XS

CAUSE

The sample cone O-ring (700004321) is damaged. Frayed o-ring looks to be cracked or partially peeled away or missing.

FIX or WORKAROUND

1. Use the sample cone removal tool. 
2. Replace the sample cone O-ring. 

ADDITIONAL INFORMATION

Refer to instrument vacuum system info for the particular mass spec on Tech reference in Service Assist for the normal backing pressure readings.

Be certain that the scroll pump or pumps have had their tip seals replaced according to the maintenance schedule.