SLF 2250/4000
Hydromatic Stinger
Page - 89 -
© 2014
Maintenance
Drainage of the Pump System / Operation in Cold Climates
To protect the fire fighting equipment against frost damage and
corrosion, it is necessary to ensure that the system is drained
especially carefully during the cold season (temperatures around
and below 0
°
C).
◊
For draining the HYDROMATIC system, please refer to the
"Draining the HYDROMATIC System" chapter on the
following pages.
- Call up the maintenance menu:
◊
Press switch (S348).
◊
The maintenance menu (MM) is shown on display (N7).
- Open the pump drain valve:
◊
Press switch (SF5).
◊
Open the external water inlet (J14/15), (J16/17) at left and
right.
◊
Open all pressure outlet valves.
◊
Open drain valves (J164/1) waterside pressure gauges.
Note:
The turret line is drained automatically by way of the pump
system.
- Drainage of tank fill line:
◊
Remove blind coupling of tank fill connection (J30).
◊
Open tank fill valve (J29).
◊
Close tank fill valve (J29) and secure the fill connection with
its blind coupling.
- Wait until the entire pump system is drained.
- Close all drain valves, pressure outlets etc. once again.
- Drying the priming pump:
◊
Engage the P.T.O. (from the external pump control panel)
whilst pressing switch (SF1) in the pump operation menu
(125a) until the P.T.O. is engaged.
This ensures that the water tank suction valve keeps closed,
otherwise the pump is filled with water again.
◊
Let the priming pump work for approx. 5 seconds.
◊
Disengage the P.T.O.
ATTENTION !
To maintain the functionality of the fire fighting equipment body at
temperatures below freezing, appropriate measures must be taken
(e.g. activate water tank heater, store the vehicle in a frost-free fire
station building etc.).
bar
Hydromatik
Hydromatik
N7
SF3
SF2
SF5
SF4
SF1
S466
856 U/min
3/4
1/2
1/4
3/4
1/2
1/4
125a
J16
J17
J10
J87
J14
J15
J11