Norac UC4+ User manual

John Deere 4700, 4710, 4720 Active Roll
Installation Manual
Spray Height Controller
Improving the competitiveness of Industry and Agriculture
throu
g
h Precision Measurement

Printed in Canada
Copyright 2005-08 by NORAC Systems International Inc.
Reorder P/N: UC4+BC+JD7A-INST Rev N (John Deere 4700, 4710, 4720 Active Roll)
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......................................................................................................................... 10
4.1EXISTING SYSTEM CHECK .............................................................................................................................. 10
4.2BOOM SPEED TEST ........................................................................................................................................ 10
4.3WING SENSOR INSTALLATION ...................................................................................................................... 12
4.4MAIN LIFT SENSOR INSTALLATION .................................................................................................... 15
4.5ROLL SENSOR INSTALLATION........................................................................................................................ 16
4.6TARGET INSTALLATION AND ALIGNMENT .................................................................................................... 17
4.7HYDRAULIC INSTALLATION........................................................................................................................... 20
4.7.1Roll Cylinder Installation..................................................................................................................................................................................20
4.7.2Valve Mounting .................................................................................................................................................................................................22
4.7.3Hydraulic Plumbing ..........................................................................................................................................................................................24
4.8ELECTRICAL INSTALLATION .......................................................................................................................... 30
4.9COMPLETING THE INSTALLATION ................................................................................................................. 35
4.10SYSTEM MAINTENANCE ................................................................................................................................. 36
5ELECTRICAL REFERENCE – CABLE DRAWINGS........................................................................................ 37
5.1ITEM C1: 44662B-40 –SENSOR TRUNK CABLE............................................................................................. 37
5.2ITEM C2: 44668 –SENSOR BRANCH CABLE .................................................................................................. 37
5.3ITEM C3: 44656D –CABLE VALVE VARIABLE RATE DT ............................................................................... 38
5.4ITEM C4: 44651 –VALVE EXTENSION CABLE ............................................................................................... 39
5.5ITEM C10: 44650-14 –POWER CABLE .......................................................................................................... 39
5.6ITEM C12: 44658-01 –UC4 JD JUNCTION CABLE ........................................................................................ 40
5.7ITEM C70: 44658-08D –UC4 ROLL BIAS VALVE CABLE DT....................................................................... 41
5.8ITEM C71: 44647 –CABLE UC3 SENSOR ROLL BIAS ................................................................................... 42
6APPENDIX A - INTERFACE CABLE MODIFICATION PROCEDURE........................................................ 43

1
1INTRODUCTION
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.

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
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 – John Deere 4720 Active Roll 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
B09 44695-10 BRACKET SPRAYER FRAME TARGET ROLL BIAS CYLINDER REV C 1
B11 44740 MOUNTING BRACKET ROLL SENSOR UC4 1
B12 44741 MOUNTING BRACKET ROLL SENSOR TARGET UC4 1
B13 44728 MOUNTING BRACKET COMPLETE UC4 BREAKAWAY EXTENDED 2
B14 44674 MOUNTING BRACKET MAIN LIFT SENSOR UC4 PLUS 1
B16 105415 CLAMP EXHAUST 2IN PLATED 4
B18 44695-18 PIN ACTIVE ROLL CYLINDER UPPER JD 20MM ZINC 1
C01 44662B-40 CABLE UC3 SENSOR TRUNK AMPF TO AMPF BLACK STANDARD 40FEET 1
C02 44668 CABLE UC3 SENSOR BRANCH 1 AMP RECEPT 3 AMP PLUG BC 1
C03 44656D CABLE VALVE VARIABLE RATE DT 1
C04 44651 CABLE VALVE EXTENSION 1
C10 44650-14 CABLE POWER UC3 BOOM CONTROL JOHN DEERE 1
C12 44658-01 UC3 CABLE VALVE BC JD REV-A 1
C70 44658-08D CABLE VALVE ROLL BIAS DT 1
C71 44674 CABLE UC3 SENSOR ROLL BIAS 2
E01 4461BC+ UC4 PLUS BOOM CONTROL PANEL 1
E02 44631 UC4 ULTRASOUND SENSOR 4
E03 45000* UC4 PLUS ROLL SENSOR W TEMPERATURE PROBE VER. 2 1
H02 44863-23 HOSE ASSEMBLY 122R2-06 32 IN L 6FORX 6FORX 2
H06 44862-05 HOSE ASSEMBLY 122R2-04 144 IN L 4FORX 4FORX 1
H20 44865-19 HYDRAULICS FITTING KIT - JD7 1
H21 44865-38 HYDRAULICS FITTING KIT - ACTIVE ROLL 1
H70 44864-04 HOSE ASSEMBLY 122R2-08 168 IN L 6FORX 12FORX 1
H71 44864-03 HOSE ASSEMBLY 122R2-08 166 IN L 6FORX 6FORX 1

4
H75 105480 HYD CYLINDER ROLL BIAS 1.75IN BORE X 7.125IN STROKE REV C 1
H76 44865-11 HOSE ASSEMBLY 122R2-04 60 IN L 4FORX 4FORX 2
M01 446BC+MAN7 OPERATOR MANUAL UC4+ SPRAY HEIGHT CONTROL 1
M10 UC4+BC+JD7A-INST MANUAL INSTALLATION UC4+ JOHN DEERE 4720 ACTIVE ROLL 1
M70 100660 BOLT HEX NC GR5 PLTD 1/4X1 1
M71 100871 NUT LOCK NYLON NC PLT ¼ IN 1
V01 44960D VALVE BLOCK ASSEMBLY 3 STATION CC/LS PROP DT 4 BOLT 1
* For systems purchased BEFORE October 1, 2011, the roll sensor part numbers is 44641.

5
Table 2 – 44865-19 - JD7 Hydraulics Fittings Kit Details
Item Part Number Name Quantity Picture
F02 104691 TEE ADAPTER - 4FORXR 4MORT 1
F03 104586 TEE ADAPTER - 6FORXR 6MORT 3
F04 105226 MALE TO FEMALE ADAPTER - 4MOR 6FORX 1
F05 44917 MALE ADAPTER - 6MB-6MOR MACHINED ORB 4
F06 104693 MALE ADAPTER - 4MOR 4MB 1
F07 44916 MALE ADAPTER - 6MB-4MOR MACHINED ORB 4
F08 44928 ORIFICE INSERT .047 IN ONE WAY 4
F09 103381 PLUG - 4MBP 4
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
Table 3 - 44865-38 - Active Roll Fittings Kit Details
These fittings are only used when installing the active roll option.
Item Part Number Name Quantity
Picture
F10 104586 TEE ADAPTER - 6FORXR 6MORT 3
F11 105338 TEE ADAPTER - 12FORXOR 12MORT 1
F12 44916 MALE ADAPTER - 6MB-4MOR MACHINED ORB 4
F14 104694 MALE ADAPTER 4MOR 4FORX90 1
F07A 44928 ORIFICE INSERT .047 IN ONE WAY 1
F07B 44935 ORIFICE INSERT .042 IN ONE WAY 1

7
Table 4 – Additional Parts
Item Part Number Packed with: Name Quantity
Picture
M13 104557 44650-14 (C10) RUBBER GROMMET 1
M14 104314 44658-01 (C12) 6 WAY SHROUD (KEYED A&F) 1
M15 104315 44658-01 (C12) 6 WAY TOWER (KEYED A&F) 1
M16 104302 44651 (C04) 6 WAY SHROUD 1
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.

8
The parts that come with your UC4+ Spray Height Control system are shown below in
their general installation configuration.
Figure 2 – UC4+ Spray Height Control Components

9
Figure 3 – Hydraulic Plumbing Schematic

10
4INSTALLATION PROCEDURE
4.1 EXISTING SYSTEM CHECK
It is necessary to check the existing system’s
functionality before installing the UC4+ Spray
Height Control.
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 5.
It is necessary to test the boom
functions in all directions
Table 5 – 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 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 6.
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 6,“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 6, 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 6.
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 6.
8. These “Average Times” now represent how
quickly your system can react to manual
control. In Section 4.9, this procedure is
repeated with the UC4+ Spray Height
Control installed for comparison and
troubleshooting purposes.

11
Table 6 – Boom Test Record (WITHOUT UC4+ Spray Height Control)
Working RPM:
Boom Trial #1
[Sec]
Trial #2
[Sec]
Trial #3
[Sec]
Avg Time
[Sec]
Left UP
Left DOWN
Right UP
Right Down
Main UP
Main DOWN
Roll CW
Roll CCW
Table 7 – Boom Test Record (WITH UC4+ Spray Height Control)
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

12
4.3 WING SENSOR INSTALLATION
1. Assemble the Breakaway Sensor Mounting
Brackets (B13) as show in Figure 4 and
Figure 5.
Figure 4 – Breakaway Sensor Bracket
Exploded View
Figure 5 – 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 8) or in front of the tube (Figure
6).
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.
4. Mount the NORAC UC4+ ultrasonic sensor
(E02) into the sensor brackets. The sensors
should be oriented forward (ahead) of the
boom (see Figure 6 and Figure 8).
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 10).
5. Sensor cables should run through the
mounting bracket tube and then behind the

13
member the bracket is mounted onto.
Cable-tie the connector in place. The cable
must not be allowed to hang below the
boom (Figure 6).
Figure 6 – Another Acceptable Mounting
Avoid mounting sensors in
locations where they may read
from parts of the boom as shown in
Figure 7.
Figure 7 – Poor Mounting
(Sensor Reading off Boom)
General mounting rules for UC4+
ultrasonic 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 8 – Sensor Mounting Guidelines
Figure 9 - Wing Sensor Mounting
A
B
B
D
C
Ultrasonic
Acoustic Cone

14
Apply a light coating of the supplied Permatex Anti-seize grease to all threaded parts upon
installation.
Figure 10 – Sensor Serial Number Installation Location
3 SENSOR SYSTEM
5 SENSOR SYSTEM

15
4.4 MAIN LIFT SENSOR INSTALLATION
1. Assemble the main lift sensor bracket (B14)
as shown in Figure 11.
Figure 11 – 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 12 and Figure
13).
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 12 – Main Lift Sensor Bracket
Mounting Position
3. Mount the sensor onto the sensor
mounting collar (Figure 12).
Figure 13 – Main Lift Sensor Mounted in
the Correct Location
A common mounting location for the main lift
sensor on a John Deere sprayer is shown in
Figure 14. If desired, the tube part of the
bracket can be cut to a shorter length.
Figure 14 - Mounting Location of Main Lift
Sensor
Bracket Tube
Sensor
Mounting Tab
Sensor Mounting
Colla
r
Bracket Base

16
4.5 ROLL SENSOR INSTALLATION
For this installation, the roll sensor
is only being used for temperature
compensation.
1. Mount the roll sensor to the provided roll
sensor bracket.
Figure 15 – Mounting the Roll Sensor to
the Roll Sensor Mounting Bracket
2. Attach the roll sensor and roll sensor bracket
to the boom, near the NORAC valve block
using the provided cable ties.
3. Attach the temperature probe on the roll
sensor to the side of the NORAC valve
block, using the provided 3/8” bolt.
Figure 16 – UC4+ Valve Block with
Temperature Probe Installed

17
4.6 TARGET INSTALLATION AND ALIGNMENT
NOTE: It is very important that the
rods be installed on the right hand
side of the sprayer.
The sprayer must be level when
installing the UC4+ Roll Control
System. The sprayer booms
should be level as well, parallel to
the sprayer’s lift frame.
1. To ease the installation of the UC4+
Roll Control system, unfold the sprayer
on a level area and lower the center
section to three or four feet above the
ground. A ladder or step will also be
required to complete the installation.
Figure 17 – Roll Control Items
Figure 18 – Typical Roll Control Install
Bumpe
r
Frame
Target
Roll
Control
Frame
Sprayer Pa
r
allel Lift
Frame
Sensor
Bracket
Roll
Sensor
Spring
Target Boom Centre
Frame
Frame Target (B07)
Spring Target (B12)
Sensor Bracket (B11)
Remove the Rubber
Bumper