NORAC UC4+BC+HD1 - Manual (Page 10)

7
4
INSTALLATION PROCEDURE
4.1 S PRAYER INSPECTION
It is necessary to check the existing
system’s functionality before installing the
UC4+ Spray Height Control system.
1. Drive your sprayer onto a flat piece of
land, with unobstructed boom
movement (e.g. no power lines).
2. Ensure the boom guide-rods are set to
the “tapered” position (factory setting)
3. Set boom suspension to be critically
damped (Figure 5). Adjust the boom
damper accordingly.
a) Push boom tip down approximately
75 cm (30 inches).
b) Hold the boom steady for a
moment, and release.
c) Ensure the boom returns to its
relaxed state as quickly as possible,
with little to no overshoot.
Figure 5:Boom Push Test- Critically
Damped
4. Inspect slide pads for excessive wear
5. Test that all boom functions operate
correctly. As you test each function
check it off in Table 3.
It is necessary to test the boom
functions in all directions
Table 3: Hydraulic System Function
Check Sheet
BOOM
FOLD
IN
FOLD
OUT UP DOWN
LEFT
MAIN
RIGHT
ROLL*
N/A N/A
* Some sprayers may not have this function.
4.2 B
OOM
S
PEED
T
EST
IMPORTANT:
Raise/lower all boom sections several
times to warm up the hydraulic
system. Grease all moving parts for
consistent results.
1. Lower each boom and main section as
close to the ground as possible.
2. Set your sprayer at field working RPM
on the throttle and mark this value in
Table 4.
You will need a stopwatch or a
watch that displays “seconds” for
the next step.
3. Raise the LEFT boom from its extreme
LOW position to the very TOP of its
travel. Record the time this takes in
Table 4, “Trial #1” for “Left UP”.