Norac UC4+ User manual

RAU OEM (Variable Geometry- RA1)
Installation Manual
Spray Height Controller
Improving the competitiveness of Industry and
Agriculture through Precision Measurement

Printed in Canada
Copyright ©2005-08 by NORAC Systems International Inc.
Reorder P/N: UC4+BC+RA1-INST Rev E (RAU VARIABLE GEOMETRY OEM)
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
1INTRODUCTION .................................................................................................................................. 2
2GENERAL SYSTEM DESCRIPTION .................................................................................................. 3
3PARTS LISTS ...................................................................................................................................... 4
3.1 UC4+ PARTS LIST ......................................................................................................................... 4
4INSTALLATION PROCEDURE ........................................................................................................... 8
4.1 FUNCTIONALITY CHECK.................................................................................................................. 8
4.2 EXISTING SYSTEM CHECK ............................................................................................................... 8
4.3 WING SENSOR INSTALLATION....................................................................................................... 10
4.3.1 Suggested Mounting Location for Wing Bracket on HSA (Aluminum) Boom ....................... 12
4.3.2 Suggested Mounting Location for Wing Bracket on HSS (Steel) Boom ............................... 14
4.4 MAIN LIFT SENSOR MOUNTING ..................................................................................................... 16
4.5 ROLL SENSOR INSTALLATION....................................................................................................... 17
4.5.1 RAU Boom Roll Sensor Mounting......................................................................................... 18
4.5.2 RAU Chassis Roll Sensor Mounting ..................................................................................... 18
4.5.3 Temperature Probe ...............................................................................................................19
4.6 HYDRAULIC INSTALLATION ........................................................................................................... 20
4.7 NORAC VALVE MOUNTING HARDWARE ....................................................................................... 22
4.8 RAU VALVE MOUNTING ............................................................................................................... 23
4.9 HYDRAULIC PLUMBING................................................................................................................. 24
4.10 ELECTRICAL INSTALLATION .......................................................................................................... 25
4.11 NORAC VALVE AND SENSOR CONNECTIONS.................................................................................. 25
4.12 RAU VALVE CONNECTIONS ......................................................................................................... 26
4.13 COMPLETING THE FACTORY INSTALLATION ................................................................................... 28
5ELECTRICAL REFERENCE – CABLE DRAWINGS........................................................................ 29
5.1 ITEM C02: 44668 –SENSOR BRANCH CABLE ............................................................................... 29
5.2 ITEM C02B: 44664 –CABLE UC4 CAN NODE DUAL.................................................................... 29
5.3 ITEM C3: 44656 –VALVE CABLE (VARIABLE RATE)...................................................................... 30
5.4 ITEM C10: 44650-35- CABLE POWER GENERIC PULL-TYPE.......................................................... 31
5.5 ITEM C11: 44651-03- CABLE EXTENSION VALVE GENERIC ........................................................... 32
5.6 ITEM C13: 44658-58- INTERFACE CABLE UC4 RAU I/O 1 ............................................................ 33
5.7 ITEM C14: 44658-59- INTERFACE CABLE UC4 RAU I/O 2 ............................................................ 34
5.8 ITEM C15: 44658-61- INTERFACE CABLE UC4 RAU BYPASS ....................................................... 35
6APPENDIX A – VALVE CONNECTOR CHANGE ............................................................................ 36

2
1 INTRODUCTION
Congratulations on your purchase of the NORAC UC4+ Spray Height Controller. 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 via
the information given below:
Phone: [phone] Canada (Toll Free)
1-866-306-6722 United States (Toll Free)
0-800-404-8389 United Kingdom (Toll Free)
1-306-664-6711 all other regions
E-mail: [email protected]
Website: www.norac.ca

3
2 GENERAL 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.

4
3 PARTS LISTS
The parts that come with your UC4+ Sprayer Height Control System are listed in Table 1. The item
number on the left side of this table references each part.
3.1 UC4+ PARTS LIST
Please ensure that all parts in your kit are present before proceeding with your installation.
Table 1 – RA1 Sprayer Boom Control System Parts
Item Part Number Name Quantity
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* 44650-35 CABLE POWER GENERIC PULL-TYPE 1
C11 44651-03 CABLE EXTENSION VALVE GENERIC 1
C12 44696 RAU VALVE DRIVE PCB 1
C13 44658-58 INTERFACE CABLE UC4 RAU I/O 1 1
C14 44658-59 INTERFACE CABLE UC4 RAU I/O 2 1
C15 44658-61 INTERFACE CABLE UC4 RAU BYPASS 1
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 44695-4 MOUNTING BRACKET UC3 SENSOR 6IN LG 1
B13 44728 MOUNTING BRACKET COMPLETE UC4 BREAKAWAY EXTENDED 2
E01* 4461BC+ UC4 PLUS BOOM CONTROL PANEL 1
E02 44631 UC4 ULTRASOUND SENSOR 3
E03 44641 UC4 PLUS ROLL SENSOR W TEMPERATURE PROBE 1
E04 44642 UC4 PLUS ROLL SENSOR 1
H20 44865-34 HYDRAULICS FITTING KIT - GN1 1
M01A* 446BC+MAN6-1 MANUAL UC4+ BOOM CONTROL 2008 OPERATORS SMALL BOOKLET 1
M01B* 446BC+MAN6-2 MANUAL UC4+ BOOM CONTROL 2008 QUICK REFERENCE SMALL BOOKLET 1
M10 UC4+BC+RA1-INST MANUAL INSTALLATION UC4+ RAU VARIABLE GEOMETRY 1
M13* UC4+BC+RA1-INSTE MANUAL INSTALLATION END-USER RAU 1
V01 44933D VALVE BLOCK ASSEM UC5-BC 2-STATION CC/LS VARIABLE RATE DT
CONNECTORS
1
Items numbers followed with an asterisks are to be delivered to the sprayer End-User. These
parts require installation to the tractor unit in accordance to the accompanied documentation.

5
Table 2 - 44865-43 (Rev B) - Hydraulics Fittings Kit Details
Item Part Number Name Quantity Picture
F02 501304 COUPLING HYD 6MB 4MBSPP 4
F03 104369 COUPLING HYD 6MBP 2
F01 44928
ORIFICE INSERT .047 IN ONE WAY
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:

6
The parts that come with your UC4+ System are shown below in their general installation
configuration.
Figure 2 – UC4+ Spray Height Control Components
*If your valve connectors or cables appear different than shown, refer to Appendix A for more
details.

7
Figure 3 – Hydraulic Plumbing Schematic

8
4 INSTALLATION PROCEDURE
4.1 FUNCTIONALITY CHECK
Before beginning the install, ensure all manual hydraulic boom functions are operating properly
on the sprayer.
oAll fold functions
oMain lift function
oWing tilt functions
oSlant function
4.2 EXISTING SYSTEM CHECK
oEnsure the boom suspension is configured as a short-pendulum (insert boom pin to
constrain the long-pendulum suspension)
oInspect boom suspension wear-pads for excessive wear
oThis UC4+BC+RA1 kit is designed to control the RAU variable-geometry boom. This
requires that the boom is fitted with variable-geometry tilt cylinders. If this install
requires adding tilt cylinders:
oAdjust the cylinders so they can drop the wings below horizontal (while still
offering enough vertical lift to lift the wing into transport position)
oEnsure the RAU cabin controls are enabled for controlling variable geometry

9
oSet the boom suspension to be critically damped (Figure 4). Adjust the boom springs and
dampers accordingly.
A) Unlock the boom, and 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 4: Boom push test- critically damped
oAdjust the slant speed of the boom until the full stroke (from full counter-clockwise to
full clockwise) is 20 seconds (Figure 5).
Figure 5: Setting the slant speed

10
4.3 WING SENSOR INSTALLATION
If the sensor brackets exceed the
maximum transport width of the
sprayer when the booms are
folded in, it is also possible to
mount the sensors facing behind
the boom. On some booms this
will allow the sensor brackets to
face inward when the boom is
folded for transport.
1. Assemble the Breakaway sensor
mounting brackets (B11) as show in
Figure 6 and Figure 7.
Figure 6 – Breakaway sensor bracket
exploded view
Figure 7 – 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. Mount the NORAC UC4+ ultrasonic
sensor (E02) into the sensor brackets.
The sensors should be oriented forward
(ahead) of the boom (see Figure 8 and
Figure 10).
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 16).
4. Sensor cables should run through the
mounting bracket tube and then behind
the member the bracket is mounted on.
Cable-tie the connector in place. The
cable must not be allowed to hang below
the boom (Figure 8).

11
Figure 8 – Another Acceptable Mounting
Avoid mounting sensors in
locations where they may read
from parts of the boom as shown
in Figure 9.
Figure 9 - 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 10 - Sensor mounting guidelines
A
B
B
D
C
Ultrasonic
Acoustic Cone

12
4.3.1 Suggested Mounting Location for Wing Bracket on HSA (Aluminum) Boom
Mounting the NORAC UC4 breakaway bracket to the HSA aluminum boom will require the use
of a RAU aluminum boom clamp, as illustrated below.
Figure 11: UC4 Sensor Bracket mounted to boom using RAU HSA boom clamp
Using this clamp will also require adjusting the hole width of the NORAC bracket to
accommodate the larger bolts and differences in dimensions between the 2 parts.
On the HSA boom it may be required to add additional support to the clamp to prevent
the bracket from rotating.
For best performance, the sensor should be mounted 1-2m in from the boom tip. This may
require putting the sensor on the breakaway bracket.
Figure 12: Sensor Mounted to 24m HSA Boom
RAU CLAMP

13
NOTE:
It may be necessary to create an adapter to mount the NORAC UC4+ bracket to the RAU
HSA boom. This bracket, when used in conjunction with the RAU HSA boom clamp, will
prevent the boom from rotating down towards the ground due to the clamp slipping on the
aluminum.
Figure 13: HSA boom clamp with adapter bracket

14
4.3.2 Suggested Mounting Location for Wing Bracket on HSS (Steel) Boom
Use the square bracket mounting plate and the included hardware to mount the UC4 bracket to
the HSS boom, as illustrated.
Figure 14: HSS Boom
Mount the UC4 bracket to the HSS boom as shown below, inside of the break-away section.
Figure 15: Sensor Mounted to HSS boom
NORAC HARDWARE
Breakawa
y
Section

15
NOTE:
When arranging height sensors, install the serial numbers from lowest to highest, left to
right.
Figure 16 – Sensor serial number installation location (Example)

16
4.4 MAIN LIFT SENSOR MOUNTING
The General Mounting Rules for UC4+ Ultrasonic Sensors (Section 4.3), must also
be followed for the Main Lift sensor.
It is not required that the Main Lift sensor be mounted at the same height (above
the nozzles) as the wing sensors.
The Main lift sensor bracket (Item B11) can be mounted as illustrated below. Ensure the cable in
safely routed to prevent damage from moving parts.
Figure 17: Main lift sensor bracket mounting- View from beneath the boom
In order to fit the bracket within the boom
as illustrated, it is necessary to cut 90mm
from the bracket, and drill a new 10mm
hole for the sensor, 12 mm from the tip.
Figure 18: Modification to bracket
44695-4
90mm
12 mm

17
4.5 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 19.
Ensure roll sensor assemblies are oriented as shown in Figure 20 with the cable
exiting towards the Right-hand wing.
The roll sensors must be mounted tightly to the brackets.
Figure 19 - Mounting the roll sensor to the roll sensor mounting bracket
Figure 20 - Roll sensor mounting with respect to sprayer orientation
* The boom frame roll
sensor does not have a
temperature probe

18
4.5.1 RAU Boom Roll Sensor Mounting
Mount the boom roll sensor to the rolling part of the boom. After the NORAC valve block is
mounted (in step 4.7), it is possible to mount to the boom roll sensor to the valve block mounting
bracket (B10) as illustrated. This is done using cable ties (do not use the bracket).
4.5.2 RAU Chassis Roll Sensor Mounting
Mount the chassis roll sensor to the square tube as shown below. Orient the sensor so the AMP
connector points towards the right-hand boom, and ensure the cables are routed and fastened
properly.