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© 2014
SLF 2250/4000
Hydromatic Stinger
FAILURE
PROBABLE CAUSE
CORRECTIVE ACTION
Pump does
- Pump not engaged
Engage pump
not operate
- Priming pump disengaged
Engage priming pump
- Suction lift to 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
- Drafting valve closed
Open drafting valve
- 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
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
Trouble Shooting
ATTENTION !
If any assistance is necessary do not hesitate to call your nearest "Rosenbauer" representative 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
