Agilent Technologies SD-1 User Manual page 65

External Symptoms of Liquid Flow System
Leaks
Table 11
Probable cause
Loose fitting(s)
Worn ferrule or fitting
Damaged seal
Loose check valve
Incorrect fitting(s)
No flow or pressure
Table 12
Probable cause
Pump is not operating
Air in pump
Clogged solvent inlet filter
Low flow
Table 13
Probable cause
Pump is pressure limiting
SD-1 Solvent Delivery - User Manual
Leaks
No flow or pressure
Low flow
Troubleshooting and Diagnostics
Troubleshooting Guide
Suggested actions
Tighten all plumbing connections no more than
1/4 turn past finger-tight.
Replace fitting and ferrule.
Replace seal.
Tighten 1/16 turn past the leak-point.
Reconnect with correct fittings.
Suggested actions
1
Plug in power cord
2
Switch pump on
3
Check fuses and replace if necessary
1
Disconnect outlet fittings
2
Degas solvent.
3
Divert flow to waste and pump at a high
flow rate to prime pump.
Check and replace if necessary.
Suggested actions
Reset MIN P setting to higher value.
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