Norac UC4+ User manual

Generic Unit
Installation Manual
Spray Height Control System
Improving the competitiveness of Industry and
Agriculture through Precision Measurement

Printed in Canada
Copyright 2008 by NORAC Systems International Inc.
Reorder P/N: UC4+BC+AN2-INST Rev F (Generic Unit)
NOTICE
NORAC Systems International Inc. reserves the right to improve products and their specifications without notice and without
the requirement to update products sold previously. Every effort has been made to ensure the accuracy of the information
contained in this manual. The technical information in this manual was reviewed at the time of approval for publication.

TABLE OF CONTENTS
1INTRODUCTION..................................................................................................................................1
2GENERAL SYSTEM DESCRIPTION ..................................................................................................2
3PARTS LISTS ......................................................................................................................................3
4INSTALLATION PROCEDURE...........................................................................................................5
4.1DETERMINING THE STYLE OF INSTALLATION....................................................................................5
4.1.1Electrically Teed Installation....................................................................................................5
4.1.2Hydraulically Teed Installation.................................................................................................8
4.2EXISTING SYSTEM CHECK .............................................................................................................11
4.3BOOM SPEED TEST......................................................................................................................11
4.4WING SENSOR INSTALLATION.......................................................................................................13
4.5MAIN LIFT SENSOR INSTALLATION................................................................................................16
4.6ROLL SENSOR INSTALLATION.......................................................................................................17
4.6.1Trapeze Style Roll Sensor Installation ..................................................................................18
4.6.2Center Pivot Style boom Roll Sensor Installation..................................................................21
4.6.3Inverted Roll Sensor Mounting..............................................................................................23
4.6.4Temperature Probe ...............................................................................................................23
4.7HYDRAULIC INSTALLATION ...........................................................................................................24
4.7.1Valve Assembly.....................................................................................................................24
4.7.2Valve Mounting......................................................................................................................25
4.7.3Hydraulic Plumbing – Electrically Teed.................................................................................26
4.7.4Hydraulic Plumbing – Hydraulically Teed..............................................................................26
4.8ELECTRICAL INSTALLATION..........................................................................................................27
4.8.1Cable Installation: Electrically teed Installation.....................................................................31
4.8.2Cable Installation: Hydraulically Teed Installation.................................................................33
4.9COMPLETING THE INSTALLATION ..................................................................................................34
5ELECTRICAL REFERENCE – CABLE DRAWINGS........................................................................35
5.1ITEM C02: 44668 –CABLE UC4 SENSOR BRANCH.......................................................................35
5.2ITEM C02B: 44664 –CABLE UC4 CAN NODE DUAL 5FT...............................................................36
5.3ITEM C3: 44656D –CABLE VALVE VARIABLE RATE DT................................................................37
5.4ITEM C10: 44658-39 –CABLE POWER GENERIC SELF –PROPELLED............................................38
5.5ITEM C11: 44651-03 –CABLE VALVE EXTENSION GENERIC .........................................................39
5.6ITEM C12A: 44658-35 -CABLE UC4 INTERFACE GENERIC...........................................................40
5.7ITEM C12B: 44658-37 -CABLE UC4 INTERFACE MAIN GENERIC ..................................................41
5.8ITEM C13: 44658-36 –CABLE UC4 INTERFACE WINGS GENERIC .................................................42
5.9ITEM C15: 44658-31 –CABLE UC4 INTERFACE HAND CONTROL PIGTAIL .....................................43

1
1INTRODUCTION
Congratulations on your purchase of the NORAC UC4+ Spray Height Control system. This
system is manufactured with top quality components and is engineered using the latest
technology to provide operating features and reliability unmatched for years to come.
When properly used the system can provide protection from sprayer boom damage, improve
sprayer efficiency, and ensure chemicals are applied correctly.
Please take the time to read this manual completely before attempting to install the system. A
thorough understanding of this manual will ensure that you receive the maximum benefit from
the system.
YOUR INPUT CAN HELP MAKE US BETTER! If you find issues or have
suggestions regarding the parts list or the installation procedure, please don’t
hesitate to contact us.

2
2GENERAL SYSTEM DESCRIPTION
Figure 1 depicts the general system layout of the UC4+ Spray Height Control system.
Figure 1: System Components and General Location
NOTICE:
Every effort has been made to ensure the
accuracy of the information contained in
this manual. All parts supplied are selected
specially to fit the sprayer to facilitate a
complete installation. However, NORAC
cannot guarantee all parts fit as intended
due to the variations of the sprayer by the
manufacturer. Please read this manual
in its entirety before attempting
installation.
ATTENTION:
When installing the UC4+ Spray Height
Control system please be aware that at a
point in the installation your sprayer booms
will be inoperative until the installation is
complete. Any installation procedure
requiring boom movement will need
to be done first. Once the hydraulics
have been disconnected you must complete
the electrical installation before the booms
become operative.

3
3PARTS LISTS
The parts that come with your UC4+ Spray Height Control system are listed in Table 1. The item
number on the left side of this table references each part.
Please ensure that all parts in your kit are present before proceeding with your installation.
Table 1: Sprayer Boom Control System Parts
Item Part Number Name Quantity
B05 44706-01 KIT CABLE TIE BLACK 10 PCS 21 IN 150 PCS 7.5 IN 1
B10 44700-06 BRACKET VALVE MOUNTING STD 1
B11 44743 MOUNTING BRACKET MAIN LIFT SENSOR UC4 PLUS 1
B13 44728 MOUNTING BRACKET COMPLETE UC4 BREAKAWAY EXTENDED 2
C02 44668 CABLE UC3 SENSOR BRANCH 1 AMP RECEPT 3 AMP PLUG BC 1
C02B 44664 CABLE UC4 CAN NODE DUAL 1
C03 44656D CABLE VALVE VARIABLE RATE DT 1
C10 44650-39 CABLE POWER GENERIC SELF-PROPELLED 1
C11 44651-03 CABLE EXTENSION VALVE GENERIC 1
C12A 44658-35 CABLE UC4 INTERFACE GENERIC 1
C12B 44658-37 CABLE UC4 INTERFACE MAIN GENERIC 1
C13 44658-36 CABLE UC4 INTERFACE WINGS GENERIC 1
C15 44658-31 CABLE UC4 INTERFACE HAND CONTROL PIGTAIL 1
E01 4461BC+ UC4 PLUS BOOM CONTROL PANEL 1
E02 44631 UC4 ULTRASOUND SENSOR 3
E03 45000* UC4 PLUS ROLL SENSOR W TEMPERATURE PROBE VER. 2 1
E04 45001* UC4 PLUS ROLL SENSOR VER. 2 1
H01 44865-01 HYDRAULICS FITTING KIT - AN2 1
M01 446BC+MAN7 OPERATOR MANUAL UC4+ SPRAY HEIGHT CONTROL 1
M10 UC4+BC+AN2-INST MANUAL INSTALLATION UC4+ GENERIC KIT 1
V01 44963D VALVE BLOCK ASSEMBLY 2 STATION CC/LS PROP DT 4 BOLT 1
* For systems purchased BEFORE October 1, 2011, the roll sensor part numbers are 44641 and 44642.

4
Table 2: 44865-01 - Hydraulics Fittings Kit Details
Item Part Number Name Quantity Picture
F07 103312 MALE ADAPTER - 6MB-6MJ 6
F08 44928 ORIFICE INSERT .047 IN ONE WAY 4
F09 104369 PLUG - 6MBP 2
6 M B - 6 M OR X 90
SIZE IN
1/16TH'S
GENDER: MALE
OR FEMALE
90° ANGLE
SWIVEL
TYPE
GENDER
SIZE
TYPE:
B - ORB
J - JIC
OR - FLAT
FACE
P - PIPE
Fitting Name
Example:
The use of dielectric grease is not recommended on any NORAC electrical connections.
To ensure all stainless steel hardware does not gall or seize apply a light coating of the
supplied Permatex Anti-seize grease to all threaded parts upon installation. Permatex
Anti-seize lubricant is preferred, but other similar anti-seize products may be used.

5
4INSTALLATION PROCEDURE
4.1 DETERMINING THE STYLE OF
INSTALLATION
In general, there are two styles of
installation that can be done with the
NORAC UC4+ Spray Height Control
system System: Electrically Teed Installation
and Hydraulically Teed Installation.
4.1.1 Electrically Teed Installation
Electrically Teed Installation is the preferred
style of installation. However, this style can
be done only if the sprayer valve block has
individual electrical wiring to control each
boom function (e.g. left up, left down, right
up, right down, main up, and main down).
Figure 3 and Figure 4 show the
Electrically Teed installation in
its general installation
configuration.
Figure 2: Electrical Wiring Applicable for Electrically Teed Installation

6
Figure 3: UC4+ BC Components: Electrically Teed Installation

7
Figure 4: Hydraulic Components: Electrically Teed Installation

8
4.1.2 Hydraulically Teed Installation
Hydraulically Teed Installation must be
done if the sprayer valve block does NOT
have individual electrical wiring to control
each boom function. For example, your
sprayer may have signal lines to select a
boom (left, right and main) and separate
electrical signals for the direction (up and
down).
For Hydraulically Teed Installation,
MANUAL mode of the UC4+ Control
System does not operate the same as with
Electrically Teed Installation. Electrically
Teed Installation will allow the operator to
trigger individual boom movements into
MANUAL mode while maintaining
AUTO mode for the other boom
movements (e.g. left boom can be in
MANUAL mode while right boom is still
in AUTO mode). Hydraulically Teed
Installation does not support this function.
If the operator triggers any boom
movement, the whole NORAC system will
convert to MANUAL mode.
Hydraulically Teed Installation
may also be done if the operator
wants the existing sprayer valves,
instead of the NORAC valves, to
operate the booms when the
NORAC system is in MANUAL
mode.
Figure 6 and Figure 7 show the
Hydraulically Teed Installation in
its general installation
configuration.
Figure 5: Electrical Wiring Applicable for Hydraulically Teed Installation

9
Figure 6: UC4+ BC Components: Hydraulically Teed Installation

10
Figure 7: Hydraulic Components: Hydraulically Teed Installation

11
4.2 EXISTING SYSTEM CHECK
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. 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.
4.3 BOOM SPEED TEST
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”.
4. Lower the LEFT boom from its extreme
HIGH position to the BOTTOM of its
travel. Record this time in Table 4,
Trial #1, for “Left DOWN”.
Be careful when lowering the
booms so they don’t hit the
ground.
5. Similarly, record two more time trials
(Trial #2 & #3) for the LEFT boom and
record in Table 4
6. Repeat Steps 1through 5for the
RIGHT, MAIN and ROLL functions.
Your sprayer may not have a roll
feature.
7. Average the three trials recorded for
each boom movement and record this
calculation in the “Average Time” slot in
Table 4.
8. These “Average Times” now represent
how quickly your system can react to
manual control. In Section 1.1, this
procedure is repeated with the UC4+
Spray Height Control system installed
for comparison and troubleshooting
purposes.

12
Table 4: Boom Test Record (WITHOUT UC4+ Spray Height Control system)
Working RPM:
Boom Trial #1
[Sec]
Trial #2
[Sec]
Trial #3
[Sec]
A
vg Time
[Sec]
Left UP
Left DOWN
Right UP
Right Down
Main UP
Main DOWN
Roll CW
Roll CCW
Table 5: Boom Test Record (WITH UC4+ Spray Height Control system)
Working RPM:
Boom Trial #1
[Sec]
Trial #2
[Sec]
Trial #3
[Sec]
A
vg Time
[Sec]
Left UP
Left DOWN
Right UP
Right Down
Main UP
Main DOWN
Roll CW
Roll CCW

13
4.4 WING SENSOR INSTALLATION
1. Assemble the Breakaway Sensor
Mounting Brackets (B11) as show in
Figure 8 and Figure 9.
Figure 8: Breakaway Sensor Bracket
Exploded View
Figure 9: Breakaway Sensor Mounting
Bracket Assembly
To assemble the breakaway sensor
bracket:
a) Assemble the bolt and nut into the
collar.
b) Grease the bottom edge of the
collar and the angled tube of the
base.
c) Place the collar onto the angled tube
of the mounting base.
d) Install the spring between the collar
and the upper ring of the base.
e) Insert tube through assembly and
tighten the collar
2. Mount the sensor bracket onto the
boom.
If possible, mount the sensor
brackets while the booms are in
their folded position to ensure
that they will not interfere with
anything when the boom is folded
for transport.
3. The sensor mounting brackets can be
installed with the mounting base behind
(Figure 12) or in front of the tube
(Figure 10).
Mounting the sensor bracket to
the break-away section of the
boom may cause the boom to
drop suddenly as a break-away
occurs. This will occur on break-
away sections which lift as they
break away.
For optimal boom tip protection,
it is recommended that the
sensor be mounted within
approximately two feet (60cm) of
the boom tip.
Please refer to the UC4+ Spray Height
Control system warranty at the end of
the UC4+ Sprayer Boom Control
Operator’s Manual (M01) for
implications.
4. Mount the NORAC UC4+ ultrasonic
sensor (E02) into the sensor brackets.
The sensors should be oriented forward
(ahead) of the boom (see Figure 10
and Figure 12).

14
When installing the UC4+
sensors (E02), start with the
smallest serial number on the left
hand side proceeding to the
largest serial number on the right
hand side (Figure 13).
5. Sensor cables should run through the
mounting bracket tube and then behind
the member the bracket is mounted
onto. Cable-tie the connector in place.
The cable must not be allowed to hang
below the boom (Figure 10).
Figure 10: Another Acceptable
Mounting
Avoid mounting sensors in
locations where they may read
from parts of the boom as shown
in Figure 11.
Figure 11: Poor Mounting
(Sensor reading off boom)
General mounting rules for UC4+
ultrasonic wing sensors:
a) In its lowest position, the sensor mouth
must be 9 inches or more from the
ground.
b) The bottom of the sensor must be at
least 9 inches in front of the spray
nozzles.
c) The bottom of the sensor must be at
least 9 inches above the spray nozzles.
d) Ensure that there are no obstructions
within a 12-inch diameter circle
projected directly below the center of
the sensor.
e) The sensor should be approximately
vertical at normal operating heights.
Figure 12: Sensor Mounting
Guidelines
A
B
B
D
C
Ultrasonic
Acoustic
Cone

15
Apply a light coating of the supplied Permatex Anti-seize grease to all threaded
parts upon installation.
Figure 13: Sensor Serial Number Installation Location

16
4.5 MAIN LIFT SENSOR INSTALLATION
1. Assemble the main lift sensor bracket
(B11) as shown in Figure 14.
Figure 14: Main Lift Sensor Bracket
2. The bracket can then be mounted to
the lowest frame member on the center
section of the sprayer. The bracket
should be mounted so the sensor
mounting collar is in approximately the
center of the sprayer and ahead of the
boom (Figure 15 and Figure 16).
The sensor mounting collar must
not be behind the sprayer’s
wheel.
The General Mounting Rules for
UC4+ Ultrasonic Sensors, from
the previous section, must be
followed.
Figure 15: Main Lift Sensor Bracket
Mounting Position
3. Mount the sensor onto the sensor
mounting collar (Figure 15).
Figure 16: Main Lift Sensor Mounted
in the Correct Location
Bracket Tube
Sensor
Mounting Tab
Sensor Mounting
Colla
r
Bracket Base

17
4.6 ROLL SENSOR INSTALLATION
Mount the roll sensors to the included
roll sensor brackets using the machine
screws and nylon lock nuts, as
illustrated in Figure 17.
The roll sensors must be
mounted tightly to the brackets.
If your sprayer is a trapeze style
pivoting boom (the boom hangs
from two link arms) then follow
Section 4.6.1 to install the roll
sensors.
If your sprayer is a center pin
pivoting boom (the boom pivots
on a pin in the center of the
boom) then follow Section 4.6.2
to install the roll sensors.
Sometimes it best to mount the
roll sensors in an inverted
orientation (upside down). For
this type of mounting refer to
Section 4.6.3.
Figure 17: Mounting the Roll Sensor
to the Roll Sensor Mounting Bracket
Figure 18: Roll Sensor Mounting with Respect to Sprayer Orientation
* The boom frame roll
sensor does not have a
temperature probe