![Tokheim TQP-HS Component Technical Manual Download Page 5](http://html1.mh-extra.com/html/tokheim/tqp-hs/tqp-hs_component-technical-manual_1124946005.webp)
Document Ref 942005-001 Rev 2
3
Component Technical Manual
TQP-HS for Fuel Dispensers
CONTENTS
Duties of the Employees ...................................................................... 1-3
Personal Protective Equipment (PPE) ................................................ 1-5
2
PRODUCT INFORMATION .................................................................................... 2-2
2.1
Definitions ............................................................................................................ 2-2
2.2
Configurations ...................................................................................................... 2-2
2.2.1
TQP-HS 80 l/min ................................................................................. 2-2
2.2.2
TQP-HS 130 l/min ............................................................................... 2-3
2.3
Technical Characteristics ..................................................................................... 2-3
2.4
Alignment of the Pump ........................................................................................ 2-4
2.5
Schematic Diagram of Operating Principles ........................................................ 2-5
2.6
Operating Description .......................................................................................... 2-6
2.6.1
Pumping, Filtration & By-Pass ............................................................ 2-6
2.6.2
Above Ground Tank Applications ........................................................ 2-6
2.6.3
Air Separation ...................................................................................... 2-6
2.6.4
Outlet Valve ......................................................................................... 2-7
2.6.5
Recovery Chamber .............................................................................. 2-7
2.6.6
Vent to Atmosphere ............................................................................. 2-7
2.6.7
Draining the TQP-HS .......................................................................... 2-8
2.6.8
V-belt Transmission ............................................................................. 2-8
2.6.9
Motors .................................................................................................. 2-8
3
FAILURE DIAGNOSIS .............................................................................................. 3-2
3.1
Failure Diagnosis .................................................................................................. 3-3
3.2
Flow Charts .......................................................................................................... 3-4
3.2.1
No Fuel Flow ....................................................................................... 3-4
3.2.2
Reduced Fuel Flow .............................................................................. 3-5
3.2.3
Uneven Fuel Flow ................................................................................ 3-6
3.2.4
Closing of the Overflow Valve ............................................................ 3-7
3.2.5
Excessive Noise ................................................................................... 3-8
4
TROUBLESHOOTING .............................................................................................. 4-2
4.1
Outlet Pressure .................................................................................................... 4-2
4.2
Inlet Pressure ....................................................................................................... 4-3
4.3
Air Vent ................................................................................................................ 4-3
4.4
Internal Air Entry in the Pump ............................................................................. 4-4
4.5
External Problems up-stream the TQP-HS ......................................................... 4-4
4.6
Excessive Head Loss ........................................................................................... 4-4
4.7
Air Entry on the pipework to the Storage Tank ................................................... 4-5
4.8
Problem Report form for the TQP-HS pump ...................................................... 4-6