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15.03.1996 / PT / Rev.02
© 1996
Fehlersuche
Trouble Shooting
ATTENTION !
If any assistance is necessary do not hesitate to call your next "Rosenbauer" representive or contact the
"Rosenbauer" Service Department.
Problems and their Solutions
Propulsion problems: please refer to manufacturers manual
Pump problems: please refer to the list below; this list is not a complete list,
but it may help to locate the source of the problem
FAILURE PROBABLE CAUSE CORRECTIVE ACTION
Pump does - Pump not engaged Engage pump
not operate - Priming pump disengaged Engage priming pump
- Suction lift too high Reduce suction lift
- Suction strainer not under water Place suction strainer under water
- Suction strainer obstructed Clean suction strainer
- Suction hose defective or gasket Change suction hose,
not installed properly or install gaskets properly or
damaged change them
- Suction screen obstructed Clean suction screen
- Drain valve not closed Close drain valve
- Discharge valve leaks due to Clean discharge valve
impurity or gasket damage (rinse with clean water) or
change gasket
- V-belt oily or turned-off Clean resp. change the V-belt
Poor priming - Inlet- and/or outlet valves of the Change inlet- and/or outlet
performance priming pump are damaged valves
- Priming valve is jammed Repair priming valve
in close position
Pump is noisy - Suction lift too high Reduce suction lift
and vibrates - Pump cavitates Reduce engine speed and nozzle
diameter, clean suction strainer
and suction screen
Poor pump - Suction strainer is obstructed Clean suction strainer
performance - Suction hose defective, Change suction hose,
gaskets not properly installed install gaskets properly
or damaged or change them
- Suction screen obstructed Clean suction screen
- Engine does not perform Check engine
- Discharge valves not fully opened Open discharge valve
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