Hardi FTZ Force Boom, Руководство оператора и по техническому обслуживанию, Страница: 19 / 35

Over centre lock adjustment
1. With the outer end of the fold cylinder still disconnected as
previously described, place one hand on the boom and with the
other manually operate the over centre lock mechanism (A).
It should snap open and closed fi rmly when operated by hand.
2. To set the correct amount of force required to move the lock
through the over centre position, place a torque wrench (B) on
the rigging screw anchor bolt at the extremely of the over centre
lock (C). Prevent rotation of the bolt by using a spanner (D) on
the lower hex.
3. The intermediate lock should snap over centre at a torque
setting of 90 Nm. The lock mechanism on the outer fold (on 3 fold
booms) should operate at 40 Nm of torque.
4. To adjust the mechanism, loosen the rigging screw lock nut
(E) and rotate the barrel of the rigging screw (F) until the correct
setting is achieved. Re-tension the lock nut (E).
6. Re-fi t the outer end of the fold cylinder.
7. Check the operation of the mechanism and re-adjust if
necessary. Repeat the procedure for the other side as required.
Boom response adjustment
The FTZ Force boom centre is mounted to the paralift frame via
four link arms (A) with a ball joint on each end (B). The ball joints
are mounted to the boom centre via anchor plates (C) which can
be set in various positions (D) depending on the type of terrain to
be encountered when spraying.
Rule of thumb
For high speed spraying on smooth terrain the ball joint anchor
plates on the boom centre should be set further apart (as in the
case of the sprayer shown in this photo) allowing less freedom of
movement. This type of setting will cause the boom to respond
more quickly to the movement of the trailer.
For slower speed spraying on rough terrain less response to the
trailers movement is desirable so the ball joint anchor plates on
the boom centre should be set closer together allowing the trailer
to move more independently of the boom and therefore reducing
the possibility of the boom striking the ground.
Anchor plates
As a part of your routine maintenance programme, make a point
of checking the tension of the bolts which secure the anchor
plates to the boom centre (A).
This should be carried out after the fi rst 10 hours of operation and
every 25 hours thereafter.
Note: If servicing the ball joints / link arms etc, ensure
you mark the position of the ball end anchor plates and
ensure the link arms are the same length for either side when
reassembled.
5 - Maintenance
Adjustments
5. 5
A
B
C
E
F
A
B
C
D
A
D