Operation
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Switching off the engine
7.7 Switching off the engine
At high ambient temperatures (> 35°C) and an engine temperature of
above 95°C allow the engine too cool down before switching it off in oper-
ation.
To do this operate the portable fire pump at approx. 2000-2500 min-1 in
suction state (higher cooling performance) for approx. 3-5 minutes, to reg-
ulate the engine temperature at approx. 85°C. The temperature display of
the engine coolant is displayed on page display of the display unit.
The display remains active for 2 mins after the portable fire pump has been
switched off . After 60 mins operation will be completely switched off.
It is not absolutely necessary to fully switch off operation by a long press of
the Engine shut down function switch (S59). In some circumstances this
can lead to an engine fault.
► Set engine to idling speed.
Observe engine temperature.
► Press the Engine shut down function switch (S59).
The engine is switched off.
► Close hydrant valve if operating the hydrant.
► Disconnect pressure hoses between the hydrant and the external
drafting connection (J15).
► Close pressure hoses.
► To release pressure in the risers, proceed as follows:
► Open the pressure valve(s) (J10) completely.
► Pull out the discharge relief valve(s) (80).
► Open the pressure valve(s) (J10) until it stops.
Pressure is released through the pump and suction connection.
► Drain pumps.
► Open drain cock (J7).
► Suck priming pump dry.
► Start engine and priming pump by pressing the Priming Pump
function button (S3) down for a few seconds.
► When no more water is discharging: close the drain cock (J7) again.
► Prepare the pump for its next use.
Shutting down temporarily
► Set engine to idling speed.
Observe engine temperature.
► Close pressure valve(s) (J10)
► Press the Engine shut down function switch (S59).
The engine is switched off.
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