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Service Manual
Service Manual
Pump Models:
VX Series Q Pumps
No Discharge
Below Capacity
Irregular Discharge
Lost Prime
Pump Stalls at Startup
Pump Overheats
Motor Overheats
Excessive Power Draw
Noise & Vibration
Pump Element Water
Excessive Seal Wear
Seizure
Causes
Solution
X
X
Metal to metal contact of
pumping element.
Check rated and duty
pressures.
X
X
Worn pumping element.
Install new components
X
X
Relief valve leakage
Adjust pressure setting.
Examine & clean seating
surfaces. Install new
components.
X
X
Relief valve chatter
Check water sealing
surfaces & guides. Install
new components.
Summary of Contents for VX Series
Page 1: ...Best Practices for Installation of VX Rotary Lobe Pumps WELCOME TO VOGELSANG FACTORY TRAINING ...
Page 15: ...Installation ...
Page 24: ...Pressurizing the Pump ...
Page 36: ...Direction of flow Startup Checklist Startup ...
Page 44: ......
Page 121: ...Service Manual Service Manual Pump Models VX Series Q Pumps ...
Page 122: ...Service Manual Service Manual Pump Models VX Series Q Pumps ...
Page 123: ...Service Manual Service Manual Pump Models VX Series Q Pumps ...