Vigia NM343 User manual

NM343
EXTERNAL SYSTEM FOR TRUCKS AND BUSES
INSTALLATION MANUAL
VERSION 1-2013
ORDER ON-LINE
www.vigia.ca / 1-888 438-8444

IMPORTANT
Installation requires an experienced mechanic with knowledge of tools and equipment identified in
this manual. Installation, disassembly, repairs and maintenance must be performed by an
Authorized Installer. Authorized Installer must use proper protective equipment such as safety
glasses and gloves when installing the system.
Improper installation or use of unauthorized parts can cause malfunctions, loss of tire pressure or
other consequences, which may result in serious injury or death.
Manufacturer or Distributor will be not responsible for injuries resulting from misuse of equipment,
use contrary to operating instructions of this manual or installation by any person other than an
Authorized Installer.
Information contained in this manual is subject to change. Col-Ven S.A. reserves the right, without notice, to make
changes in equipment design or components as progress in engineering, manufacturing or technology may warrant.
World-wide Patents
VIGIA is a trademark of Col-Ven S.A.

TABLE OF CONTENTS
1 - VIGIA Automatic Tire Pressure System
Features - Operation 1
2 - System Components
2.1 - Rotor mountings
A) Disks 2
B) Stars 5
C) Threaded caps 7
D) Brackets for Steering Wheels 8
2.2 - Rotor
Installation Procedure 8
2.3 - Tire valves
Installation Procedure 8
Connecting valves to rotor 9
2.4 - Body couplings
Installation Procedure 11
A) Steering axles 12
B) Non-steering axles with fenders 12
C) Non-steering axles without fenders 13
Connection between body couplings and rotor 17
2.5 - Hose
Installation Procedure 22
General diagram 23
Connection procedure 23
Coupling between tractor and trailer 23
2.6 - Air Filter
Purpose – Location – Installation Procedure 25
2.7 – Control and Display Modules
Control Module NM343 27
Display Module NM343 29
3 –Pneumatic and Electrical Connections 35
4 – Tire Pressure Calibration 36
5 - Final system testing (in operation) 38
6 - Recommendations to the installer 39
7 - Failure location guide 39

1
1 - VIGIA AUTOMATIC TIRE PRESSURE SYSTEM
Features: It allows for constant and automatic monitoring and adjustment of tire pressures. The system
maintains a predetermined cold pressure, even in a moving vehicle or a vehicle with punctured tires.
The VIGIA NM343 display module generates digital information on the status of tire pressures and
system that is transmitted via its interface to the existing vehicle’s satellite module and ultimately to the
user’s telematics software.
Operation: In the event of a 3 or higher PSI decrease in the pre-established pressure in one or more
tires due to punctures or other causes, the system automatically generates audio and visual signals that
inform the driver of the problem and its location. At the same time the system begins pumping air,
keeping tire pressures calibrated at the pre-set levels.
If the loss of air is substantial, as in the case of a blow-out, and the equipment is not able to compensate
for this loss, a visual signal advises the driver. At the same time, an electronic security mechanism blocks
the equipment, stopping the system from pumping air, thus ensuring the normal operation of the other air-
driven systems: brakes, suspension, etc.
Model NM343 can be installed in all vehicles equipped with an air compressor.
System components, operation and installation procedure are described in the following sections.

2
2 - SYSTEM COMPONENTS
2.1 - ROTOR MOUNTINGS
VIGIA provides different rotor mountings for different hub types.
A) DISKS
To install the disks, replace nuts or bolts in the hub with Vigia stud bolts according to the Table in next
page (Fig. 1). Vigia stud bolts are available for different thread sizes and lengths.
Figure 1
One of the disk's faces has dash lines identified by numbers in the outer edge. These lines will be used
for drilling and centring (Fig. 2).
Figure 2

3
INSTALLATION PROCEDURE
1- Determine the quantity of nuts or bolts in the hub.
2- Assign a number to each one, # 1 corresponding to the one in the highest position, numbering the
rest clockwise.
The following table shows all possible hub clamp nut or bolt quantities in the first column. With
this information, determine the necessary stud bolt quantity (column 2), the nuts or bolts to be
replaced (column 3) and the disk lines to be drilled (column 4).
Hub nuts or
bolts - quantity
Stud bolt
quantity
Nut or bolt numbers
to be replaced
Disk lines to
be drilled
3
3
1-2-3
0-3-3
4
4
1-2-3-4
0-5-5-1
5
3
1-3-4
0-2-2
6
3
1-3-5
0-3-3
8
3
1-4-6
1-7-7
8*
4
1-3-5-7
0-5-5-1
9
3
1-4-7
0-3-3
10
3
1-4-8
0-4-4
10*
4
1-4-6-8
0-4-4-1
12
3
1-5-9
0-3-3
12*
4
1-4-7-10
0-5-5-1
15
3
1-6-11
0-3-3
16
3
1-6-12
1-6-6
*Note: If the hub has 0.8 mm or 5/16" bolts and ornamental cap, 4 stud bolts must be used.
3- Replace the nuts or bolts specified in column 3 of the above table by the stud bolts provided with
the system.
4- With a compass, measure clockwise the distance between the centre of the stud bolt replacing
the bolt or nut assigned # 1, and the centre of the next stud bolt.
5- Mark that measurement on the disk to be used, onto the lines given in column 4 in Table 1,
carefully placing one of the compass' ends in lines 0 or 1.
6- Repeat steps 4 and 5 as many times as necessary until all points to be drilled have been marked.
All the selected drill points must be located at the same distance from the disk's outer
edge.
If the distance measured with the compass falls in between two points, mark a third point
between the other two points, maintaining the original distance.
7- Drill the selected points with a 0.5 mm (13/64") bit first, and then with a 10.25 mm (13/32") bit.

4
DISK FASTENING EXAMPLE
An axle with a 10-nut hub is shown. The fastening nuts
are numbered as specified in step 2 (Fig. 3).
Figure 3
From Table 1, it is determined that for a 10-nut hub, 3
stud bolts should be used to replace nuts numbers 1, 4
and 8, which must be taken out and replaced with the
stud bolts provided with the system (Fig. 4).
Figure 4
The distance between the centre of the stud bolt that
replaced nut # 1 and the centre of the next stud bolt is
measured (Fig. 5).
Figure 5

5
In this example, Table 1 shows that the dashed disk
lines to be used are numbers 0, 4, 4. Therefore, with the
centre on a point on line 0, the rest of the points are
placed on lines 4, obtaining three reference points at the
same distance from the disk's outer edge (Fig. 6).
Figure 6
The selected points are drilled, fastening the disk to the
stud bolts with the washers and nuts provided (Fig. 7).
Figure 7
B) STARS
This element can replace the disks in units whose hubs
have 3, 6, 9, 12, or 15 fastening nuts or bolts. Three of
the nuts or bolts must be replaced by Vigia stud bolts
that are provided with the system (Fig. 8).
Vigia stud bolts are available for different thread sizes
and lengths.
Figure 8

6
INSTALLATION PROCEDURE
1- Determine the quantity of nuts or bolts in the
hub.
2- Assign a number to each one, with # 1
corresponding to the one in the highest position;
continue clockwise numbering the rest (Fig. 9).
The following table shows all possible hub clamp
nut or bolt quantities in the first column. With
this information, determine which nuts or bolts
will be replaced.
Hub nuts or
bolts quantity
Nut or bolt numbers
to be replaced
3
1-2-3
6
1-3-5
9
1-4-7
12
1-5-9
15
1-6-11
3- Replace the nuts or bolts specified in the second
column of the table by the stud bolts provided
with the system (Fig. 10).
4- With a compass, measure the distance between
the centres of two stud bolts (Fig. 11).
Fig. 10
Fig. 9
Fig. 11

7
5- Apply the measurement to two of the star
spokes, marking the points. Then, using one of
the marked points as a reference, apply the
measurement to the third spoke (Fig. 12).
The selected points must be located at the
same distance from the star's outer edge.
If the distance measured with the compass falls
in between two points, mark a third point
between the other two points, maintaining the
original distance measurement.
6- Drill the selected points with a 0.5 mm (13/64")
bit first, and then with a 10.25 mm (13/32") bit.
Fasten the star to the stud bolts with the
washers and nuts provided (Fig. 13).
C) THREADED CAPS
This element is used in units with a threaded cap hub.
INSTALLATION PROCEDURE
1- Take the original threaded cap out (in models
with oil, first collect the oil in a clean container).
2- Secure the provided VIGIA threaded cap in
place. It must be the one specific to the unit.
The model with a central hole is for units
carrying oil. Replace the oil through the central
hole in the threaded cap. Install the plug (A).
3- Put the disk or star in place, fastening it with the
stud bolts, nuts or bolts provided.
Fig. 11
Fig. 12
Fig. 13
A

8
D) BRACKETS FOR STEERING WHEELS
Various rotor mounting kits for steering axles are
available. Do not remove original lug nut form wheel.
Always attach the bracket over the wheel nut with the
provided nut.
2.2 - ROTOR (Fig. 23)
The rotor's purpose is to allow air to pass from a
stationary point on the truck body to the rotating tires.
INSTALLATION PROCEDURE
The rotor must be tightened with moderate torque,
approximately 6 Lb./Ft. (Fig. 24).
Note: The rotor output terminals must be oriented
towards the inflation valves.
2.3 - TIRE VALVES
VIGIA offers different tire valves. All tire valves have a
check valve at their brass end preventing air to escape
from the tire.
a) Hose and Tire valve 50 cm (Fig. 25): for inside tires
in dual-tire configurations.
b) Hose and Tire valve 30 cm: for outside tires in dual-
tire configurations or for single tires.
Fig. 23
Fig. 25
Fig. 24

9
Outside tires require the Outside tire connector
“U” (Fig. 26)
Single tires require the Outside tire connector “L”
(Fig. 27)
INSTALLATION PROCEDURE (Fig.28)
1- Thoroughly clean the external thread of the
original tire valve, preferably with a threading
tool.
2- Remove the original valve core.
3- Screw on the Outside tire connector, if required,
lightly tightening it with a wrench.
4- Screw on the VIGIA valve, lightly tightening it
with a wrench.
5- Ensure that the tire pressure is lower than the
desired calibrated tire pressure.
VIGIA hose and tire valves must not rub against the
wheel rims and/or hubs.
Important: Remove any tire extensions.
CONNECTING TIRE VALVES TO ROTOR
1- Insert the Nipples for Rotor (Fig. 29) to the
VIGIA rotor and torque to approximately 2
Lb./Ft. (Fig. 30).
Fig. 26
Fig. 27
Fig. 28
Fig. 29
Fig. 30

10
2- Screw the End Hose Connectors (Fig. 31) to the
Nipples for Rotor and torque to approximately 1
Lb./Ft. (Fig. 32).
3- Extend tire valve hose to the rotor, making sure
that it is not touching the rotor mounting, hub or
wheel rim.
Cut tire valve hose as shown in Figure 33 and
push free end into End Hose Connector nipple.
For single tire, install a Plug for Rotor (Fig. 34)
on the open rotor output.
Fig. 31
Fig. 32
Fig. 33
Fig. 33

11
2.4 - BODY COUPLINGS
VIGIA offers three models of body couplings (Fig. 34):
a) Double outlet
b) Standard
c) Quick connect
All models include a spacer that can be placed either
inside or outside the body, fender or other mounting part,
depending on vehicle characteristics (Fig. 35).
INSTALLATION PROCEDURE
VIGIA offers several body mounting attachments
designed to prevent air hoses from extending beyond
the vehicle's body, or to avoid perforating fenders, body
or cabin (fig. 36). Make sure that the hose does not rub
against the mounting, even in extreme situations.
Fig. 34
Fig. 35
Fig. 36

12
A-STEERING AXLES
1- Align the steering wheels parallel to the truck’s
body.
2- Hold a plumb from the fender, so that the string's
vertical line crosses the rotor's centre.
3- Mark a point 50 mm (2") from the plumb line,
towards the back of the vehicle and as close as
possible to the edge of the fender (Fig. 37).
Before drilling, make sure that there are no
obstructions inside the fender. If there are any
obstructions, find an unobstructed spot as close
as possible to the point originally marked.
4- Drill first with 5 mm bit (13/64"), and then with
10.25 mm (13/32") bit.
5- Install the corresponding body coupling.
B- NON-STEERING AXLES WITH FENDERS
B1. Single axles (Fig. 38)
1- Using a plumb, mark a point 400 mm (15 ¾”) in
front of the axle and as close as possible to the
edge of the fender or truck’s body.
Before drilling, make sure that there are no
obstructions inside the fender or body. If there
are any obstructions, mark a new position as
close as possible to the point originally marked.
2- Drill first with 5 mm bit (13/64") and then with
10.25 mm (13/32") bit.
3- Install the corresponding body coupling.
Fig. 37
Fig. 38

13
B2. Double axles (Fig. 40)
Note: This procedure applies only when the air pressure in tires of both axles will be the
same. If that is not the case, refer to the procedure for single axles.
1- Using a plumb, determine the centre line between the axles.
2- On the centre line, define a point at the approximate height of the tires, with
respect to floor level.
Before drilling, make sure that there are no
obstructions inside the fender or body. If there
are any obstructions, mark a new position as
close as possible to the point originally marked.
3- Drill first with 5 mm bit (13/64") and then with a
10.25 mm (13/32") bit.
4- Install the double outlet body coupling. If
coupling is under unloading doors, install a
protecting visor.
C- NON-STEERING AXLES WITHOUT FENDERS
An adjustable body coupling mounting pipe is provided
for these axles (Fig. 44).
C1. Single axles (Fig. 45)
1- Find a bolt or hole in the chassis approximately
400 mm (15 ¾”) in front of the tire's centre line,
and at a height that will avoid any rubbing to the
mounting pipe, even with the suspension
working at load limit (Fig. 46).
Fig. 44

14
2- Take the selected bolt out.
3- Secure the body coupling mounting pipe with the
bolt provided. Tighten with a torque of
approximately 115 lbs/sqft. (Fig. 47).
The body coupling mounting pipe must remain
with the VIGIA hose's outlet hole facing down.
4- Install body coupling to the adjustable mounting
pipe as indicated in Figure 48. Note that body
coupling’s spacer is removed.
5- Pass the required hose length through the hole
and connect the body coupling.
6- Screw the mounting pipe end with 15 lbs/sqft.
torque turning the hose at the same time to
avoid strangling.
7- Adjust the length of the adjustable mounting
pipe making sure that body coupling end is not
exposed. Fix position with corresponding conic
nut.
Fig. 48
Fig. 46
Fig. 47

15
C2. Double Axles (Fig. 49)
Note: This procedure is applied only if the air pressure
in the tires in both axles is the same. If that is not the
case, refer to the procedure for single axles.
1- Find a bolt or hole approximately midway between both axles, and at a height that will avoid
any rubbing to the mounting pipe, even with the suspension working at load limit.
2- Take the selected bolt out.
3- Secure the body coupling mounting pipe with the
bolt provided. Tighten with a torque of
approximately 115 lbs/sqft.
The body coupling mounting pipe must remain
with the VIGIA hose's outlet hole facing down.
4- Install body coupling to the adjustable mounting
pipe as indicated in Figure 48 above. Note that
body coupling’s spacer is removed.
5- Pass the required hose length through the hole
and connect the body coupling.
6- Screw the mounting pipe end with 15 lbs/sqft.
torque turning the hose at the same time to
avoid strangling.
7- Adjust the length of the adjustable mounting
pipe making sure that body coupling end is not
exposed. Fix position with corresponding conic
nut.
Fig. 49

16
Optional Adjustable body coupling mounting pipe with Bolt NF 5/8” x 2 ½” Bored Ø 6.25 mm
To be used when the Vigia hose would become strangled should the standard adjustable pipe is
employed.
Figure 51 shows installation and parts required for this mounting pipe.
1 X1414.A013-8 1/4” hose fastening nut
2 X2433.A079-5 Adaptor 5/16” to 1/4”
3 X9201.A024-7 Hose Vigia 143 Ø 1/4”
4 X9402.A112-3 Bolt NF 5/8” x 2 ½”- Bored Ø 6.25mm
Note: Adaptor 5/16” to 1/4” must be used with “O”
ring X9601.A022-0
Fig. 51