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5 - Operation
The switches on the hydraulic control box controls the following
functions:
1. Power ON/OFF
2. Trapeze lock
3. Boom slanting
4. Boom inner folding left
5. Boom inner folding right
6. Boom outer folding left
7. Boom outer folding right
Following operations are carried out by the tractor's hydraulic con-
trol lever(s)
• Raising/lowering of the boom.
For unfolding the boom then do the following:
Check that pendulum (2) is locked.
1. Activate hydraulic control lever to raise the until it is clear of trans-
port brackets.
2. Unfold inner sections by pressing switch (4) to the left and switch
(5) to the right.
3. Unfold outer section by pressing switch (6) to the left and switch
(7) to the right.
4. Push switch (3) to correct slant angle.
5. Activate hydraulic control lever to lower boom to desired working
height.
6. Unlock pendulum (2).
The folding procedure is the reverse of unfolding.
ATTENTION! If boom isn't symmetrically unfolded (e.g. when using alternative boom widths) the trapeze must be
locked during driving. Failure to do so will damage the boom!
How to unfold the boom - VHZ
A. Activate hydraulic control lever
B. Raise boom half-way to the top (minimum)
C. Push switches (4) and (5) outwards to unfold intermediate sec-
tions.
D. Push switches (6) and (7) outwards to unfold outer sections.
E. When boom wings are completely unfolded, unlock trapeze on
switch (2).
F. Lower boom to desired working height.
G. Slant control. Use switch (3) for slanting of boom.
WARNING! Do not tilt boom to vertical without folding. Neither during normal folding procedure. This may cause
damage to the boom.
5.2
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