Hardi MASTER PRO VHH, Instruction Book, Page: 36 / 82

5 - Operation
36
Manoeuvring of the boom - VHY
The VHY boom is solely controlled by the tractor’s hydraulic levers.
Following operations are carried out by the tractor’s hydraulic control lever(s).
•
Raising/lowering of the boom.
•
Folding/unfolding of the boom.
•
Slanting control (optional).
μ
ATTENTION! Only unfold and fold the boom on level ground.
Manoeuvring of the boom - VHZ
The switches on the hydraulic control box controls the following
functions:
1.
Power ON/OFF.
2.
Trapeze lock.
3.
Boom tilt left.
4.
Boom raise/lower.
5.
Boom tilt right.
6.
Boom slanting.
7.
Boom outer folding left.
8.
Boom outer folding right.
9.
Optional functions E/F/G.
10.
Optional functions H/I.
Unfolding the boom
1.
Check that trapeze (2) is locked.
2.
Push switch (4) upwards to raise the boom until it is clear of transport brackets.
3.
Unfold inner sections by pressing switches (3) and (5) downwards.
4.
Unfold outer sections by pressing switch (7) to the left and switch (8) to the right.
5.
Push switch (6) to correct slant angle.
6.
Push switch (4) downwards to lower boom to desired working height.
7.
Unlock trapeze (2).
The folding procedure is the reverse of unfolding.
μ
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!
±
WARNING! Do not tilt boom to vertical without folding. Neither during normal folding procedure. This may cause
damage to the boom.