18
FUNCTIONING OF THE AERIAL PART.
The delivery B that goes to the valve-blocks of the aerial part (17 and 32) is connected in parallel
with a two-ways / two positions electrovalve connected with the tank and usually open. (8). See
2.4.3
If this electrovalve is NOT POWERED, the oil is conveyed to the tank, preventing the movement of
the aerial part. This condition
happens
when:
1. The machine is not stabilized
2. The load sensor is alarmed
3. You select the 200kg way and the Jib is not completely closed.
On the contrary, when the machine is stabilized, with a load which is lower than its limit and in the
proper functioning way, you can
go up
. To excite the electrovalve 8, you need to close the
connection to the tank.
The delivery hose goes then into a deviator (16) that sends the oil to the valve-block in the basket or
to the valve-block on the undercarriage part.
Summary of Contents for GOLD LIFT 1470
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