Alpego DJ Use And Maintenance Manual page 26

4.11.2. Hydraulic locking safety system
Safety bracket "A" prevents any unwanted unlocking. Bracket "A" must be in "unlocking position" (see picture 1) before starting
Unfolding/Folding)
Unlocking position (pic. 1)
OPENING
a) In order to open the equipment act slowly on the hydraulic
distributor lever, hooks "B" will lift automatically, proceed
without any jolts until both the two halves of the harrow are
in horizontal position.
CLOSING
a) Check if the harrow is in the position "FIXED or FLOATING
DOWN", in this case you must take away the two pins A and
replace in hole B or C (see paragraph 5.7)
At this point act on the hydraulic distributor lever which closes
the equipment and proceed to the complete closing
manoeuvring until the two moving parts of the harrow get to a
stop in vertical position. Release the lever of the hydraulic
distributor to lower the safety hook "B".
Once folded, put brackets "A" in locking position (pic. 2)
The hydraulic pipes
must be kept far from
any moving component.
Every time you use the
machine, check the
pipes and the fixing
devices of the pipe
fittings for their
conditions. The repairs
must be carried on only
by qualified personnel
using only ALPEGO
original spare parts.
During the closing phase, make sure that the power take-off (PTO) is free of any type of braking.
25 Strictly confidential information - All rights to the contents of this document are reserved. It is forbidden to copy, use, distribute, even partially or
otherwise disclose such information, unless expressly authorised by "ALPEGO S.p.a.". Violations will be prosecuted in accordance with the law.
Codice: Q00A00017 Rev. 23_11/2022
COMPONENTS
ref. Description
A Hydraulic cylinders
B Safety valves
C Flow reducing device
D Quick-coupling for opening half
the machine
E Quick-coupling for folding half
the machine
F Ram for opening hooks
HYDRAULIC DIAGRAM
Locking position (pic. 2)