Boom Fold Speed Adjustment; Damping Adjustment (In Fi Eld); Spraying With The Boom Half Folded; Boom Tilt Function - Hardi FTZ Force Boom Operator And Maintenance Manual

4 - Operation
FTZ Force Boom

Boom fold speed adjustment

To adjust the folding speed of the boom, locate the line restrictor
valve (A) on the inner fold distribution block (B) at the top of the boom
centre.
With the boom folded in the transport position and the hydraulic
system safely shut down, adjust the fold speed as follows:
Loosen the feed line coupling (C)
To decrease the folding speed loosen the lock nut (D) and screw the
valve (E) inward. Re-tension the lock-nut (D) and tighten the hose
fi ttings (C).
To increase the folding speed loosen the lock nut (D) and screw the
valve (E) outward. Re-tension the lock-nut (D) and tighten the hose
fi ttings (C).
Damping adjustment (in fi eld)
Fine tuning of the boom suspension is possible by adjusting the
throttle valve screw on the damping cylinder at the bottom of the
boom centre. To achieve the factory setting, Back off the lock nut
and screw the throttle valve (A) all the way in and then out three
full turns.
To obtain more damping: Throttle valve (A) must be screwed
inward.
To obtain less damping: Throttle valve (A) must be screwed
outward.
Note: For Damping Cylinder service procedure please
see the maintenance section of this publication.

Spraying with the boom half folded

To spray with the boom at half width, follow the above procedure with the exception of the fi nal stage, unfolding the
inner sections only by pressing switch (A) to the left. Remember to turn off the outer section valves via the 5500
spray control box manual section control (see 5500 controller hand book for details).

Boom tilt function

In order to avoid obstacles etc, the boom tilt hydraulics may be operated independently by activating switches (C)
for the left or (D) for the right hand side individually as required.
Warning: Beware of over-head power lines. Over head power lines present a potentially fatal hazard.
See safety section at the front of this manual for further information and examples of minimum safe
working clearances.
4. 2
E
A
B
A
C
D