27
_________________________________________________________________________________
6. EMERGENCY
LOWERING
AND
EMERGENCY
USE
If the power supply for some reason cuts off (e.g. no fuel or electricity cuts off, or connecting cable
fails) the booms can be lowered using the following methods.
6.1 Hand pump
The access platform is equipped with a hand pump, which can be used to operate boom functions.
Figure 11: Hand pump
Using the hand pump:
-
Stop the engine.
-
Release the hand pump handle (Figure 6 (11)) and open the protective lid (Figure 6 (10)).
-
Place the handle in the pump.
-
Use the pump control and lower control levers (Figure 6 (12-16)) to bring the booms on their
transport positions.
Hand pump must only be used in emergency situations to lower the boom. Always lower the jib boom
and the 1
st
boom and drive telescopic boom in before lowering the 2
nd
boom.
Risk of tipping over!
6.2 Electric lower controls (option)
1. If the access platform lift is equipped with an electric emergency lowering system. There are
emergency lowering buttons on the platform control panel (see 4.1) and at ground level (see 4.4).
By pushing the button the selected boom comes slowly down as long as the button is being
pushed. Emergency lowering button can only be operated from the selected control position. If the
ignition key switch is at “0” position, it is possible to use the emergency lowering from platform
since in that case the button takes it
s’ power directly from the battery. Emergency lowering valves
are protected with a 10 A fuse which is located in the connection box on the side at ground level.
2. Always lower the jib boom and the 1
st
boom and drive telescopic boom in before lowering the 2
nd
boom. Before lowering the booms to transport supports always make sure that they are properly
aligned and going straight down to transport supports. If necessary, the booms can be rotated at
the end of the slewing ring shaft either with the hand pump or a 22 mm spanner or with a socket
wrench at ground level. Before operating the slew turn the
ignition key to ”0”.
NOTE! Always remember to remove the tool after rotating the booms. Never rotate the
slewing ring by hand when the combustion engine / electric motor is running and the
main current is on!
If the access platform is equipped with electric emergency lowering always check
function of emergency lowering before starting operation.
