2.4 Wheels and Tires
2.4.1 Wheel Clearance
The distance from the tire to the mudguard or
wheel arch must be sufficient, even if snow or
anti-skid chains are fitted and the suspension is
fully compressed allowing for axle twist as well.
Please consult the Vehicle Converter Advisory
Service [email protected] for clearance
requirements and data.
NOTE: Make sure that only approved wheels
and /or permissible tire sizes are fitted
For standard wheelhouse dimensions.
Refer to: 5.1 Body (page 175).
(Integral Bodies and Conversions)
2.4.2 Tire Manufacturers
Replacement tires should be of the same make,
size, tread pattern and load rating as the Original
Equipment Manufacturer. Under these conditions
the original tire label should be satisfactory,
however if the specified tires and/or inflation
pressures are changed then a new label should
be affixed over the original label.
2.4.3 Spare wheel
When converting or relocating the spare wheel,
access must be ensured.
2.4.4 Painting Road Wheels
CAUTION: Do not paint wheel clamp
surfaces in contact with other
wheels, brake drum or disc, hub and
holes, or surfaces under wheel nuts.
Any further treatment in these areas
may affect the wheel clamp
performance and the vehicle safety.
•Mask the wheel when changing the color or
repairing paint.
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harness that provides roof-mounted rear turn
indicators, powered via relays. This should be
used in conjunction with SVO fusebox.
3.Chassis cab LED rear lamp cluster
replacement recommendations, especially
turn indicator relay implications – see lighting
load table. Generally the use of LED equivalent
lighting systems reduces the electrical load on
the vehicle; however, special care needs to
be taken with respect to any change to or
addition of turn indicator lights. Depending on
the current requirements of the LED(s)
compared to the bulb it is replacing, a ballast
resistor may be required, if not already
integrated into the LED lamp assembly.
Without this, bulb outage detection for turn
indicators will be affected, which is a legal
requirement.
Additional turn indicators must be powered
through relays (max 300mA), driven by existing
turn lights. The maximum load that the Central
Junction Box can drive is 3 x 21W per side (front,
rear and CAT 6 turn indicators); but even if the
vehicle is not fitted with the CAT 6 lights, the feeds
for these should not be used as the Central
Junction Box would need reconfiguring, which
could have safety as well as functional
implications.
4.Special Vehicle Option beacon switch: wiring
locations, circuit diagrams and max amperage
– see Special Vehicle Option fuse box
schematic (max current is 15A); there is
provision for the Special Vehicle Option beacon
switch in an empty switch location on the
instrument panel.
5.Rear loom connector detail location and supply
details for retro-fit loom extension for
example:- when extending a medium wheel
base, long wheel base or extended frame
overhang, what connectors do they use to
make a plug and play loom extension? – for
chassis cab vehicles, there is an Special
Vehicle Option extension loom for rear lamps
(part number 6C1V-14408-A*). There is not, at
present, a similar loom for Van, Bus and
Kombi's, although the appropriate mating
connector is now tooled, so this would be
possible.
Miscellaneous Systems
Handbrake on - Cluster Warning Light -
Unless the vehicle is specified with options that
drive the handbrake warning light (for example
ESP, Australia market), the components making
up this system are not fitted. We do not
recommend installation of this feature as an
aftermarket addition. There are several reasons
for this:
1.Not all circuits carry the requisite wire as a give
away:
•The wires might be part of the main vehicle
harness (14401) even if not used – for example
camper vehicles are normally ordered with
power mirrors, and the wires will be present
as a give-away.
•The seat pedestal harness (14K076), however,
is vehicle specific – if the handbrake is not part
of the specification, it will not be present or
give-away. This harness would need to be
changed to the compatible part that also
includes the handbrake warning light circuit.
2.The handbrake switch (part number
2F2T-15852-A*) together with its short jumper
harness (6C1T-15K857-A*) would need to be
obtained and fitted.
3.The handbrake warning light is in all clusters,
but unless the vehicle config. parameter
“parking brake switch” is set, the Central
Junction Box will not read this input, and hence
NO CAN message sent to the cluster.
Reconfiguration can only be done at a Ford
Dealer.
NOTE: If a vehicle already has a handbrake
warning light in the cluster, or one is installed as
per the Ford design, it is not possible to utilize the
wire from the handbrake switch as part of an
interlock circuit (this is a pull up resistor input that
provides a wetting current of 20mA – anything in
excess of this, for example through additional
circuitry, will almost certainly damage the Central
Junction Box). If there is no handbrake switch
installed, it would be possible to add one and
utilize this as part of a separate circuit, up to a
maximum current of 500mA through the switch.
Reverse Sensors (Rear Park Aid
Module)- The factory-fit option is a CAN-based
system, but for Van, Bus, and Kombi vehicles
only. Stand-alone systems can be installed (for
example for chassis cab conversions), but would
need to utilize the PTA line of the radio if muting
is required.
Fuel Fired Heater (FFH)- Add FFH: wiring is
only present (give-away) in certain harnesses.
There was an aftermarket kit available for this
system on current Transit, which could probably
be “updated” to suit V347/8.
Fuel Fired Heater (FFH) - Programmable
FFH: this utilizes a timer/control module mounted
to the Instrument Panel, which necessitates
having the correct Instrument Panel harness
fitted. Retrofit of this would be a difficult.
For both systems, the appropriate 6C1T-14K132
harness would be required (suffix -A* for
Programmable FFH, and suffix –B* for Add FFH).
Central Locking
Locking is controlled by the Central Junction Box
module. There is current sensing on certain
locking circuit pins as part of the security system
– if these are tampered with, locking cannot be
guaranteed.
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NOTE: A power take off layout can only be
implemented on vehicles fitted with an ABS
braking system. Manual braking systems employ
a transmission speed sensor to determine vehicle
speed & the RPM speed control software
contains vehicle speed restrictions which prohibit
RPM speed control operation if vehicle speed is
detected above very low levels (approx 2.5 mph).
A vehicle fitted with an ABS braking system
derives vehicle speed via the vehicles wheel
speed sensors, so the transmission can operate
normally without effecting RPM speed control
operation.
3 Modes of Operation
There are 3 principle modes in which this feature
can operate, they are:
1.3 speed mode – this provides the end user a
choice of up to 3 preset RPM values to select
from. The end user cannot easily override
these values so there is minimal risk of damage
to ancillary equipment due to it being run at
speeds it was not designed for. Very limited
vehicle speed is allowable while in this mode
(up to 2.5mph approx)
2.Variable speed mode – this provides the end
user with RPM speed ramp up & down
buttons. The end user is free to select RPM
values between 1300-3000rpm in 25rpm
steps. A single press results in a 25 rpm jump.
If a ramp button is held depressed by the end
user then the rate of change is 250rpm/sec.
Very limited vehicle speed is allowable while in
this mode (up to 2.5mph approx)
3.Idle up speed – this mode allows the engines
normal idle to be increased to any value (in 25
rpm steps) in the range 900-1200rpm. There
is not a vehicle speed restriction in this mode
as the intended use is to raise the engine idle
to reduce the likelihood of engine stall when
ancillary equipment is being run from the
engine during normal drive operations. Eg
refrigerator units used to keep the cargo bay
cool.
NOTE: Items 1) & 2) will be available from Nov
2006, while item 3) should be available from Jan
2007. Any latest generation diesel Transit can be
updated to include item 3) Idle up speed with a
simple calibration update once it becomes
available.
System Availability
This feature is built into the latest Powertrain
Control Module (PCM) software on all diesel
engine variants.
By default the feature is not enabled unless the
vehicle is specifically ordered with the feature
from the factory.
Vehicles which have not been ordered with this
feature may have the feature enabled at a dealer
via the IDS diagnostics system. The dealer should
charge for this service.
How to control this feature
A loop of wire (green/white) is provided in the
main electrical loom to permit control of the RPM
Speed Control software. Cutting this loop will
provide two wires to connect a control box to the
PCM.
The control box needs to switch resistors into the
circuit across the two green/white wires which
formally formed the loop prior to being cut. This
sort of circuit is known as a resistance ladder. The
PCM software monitors the green/white wire
circuit & when certain resistances are detected
they are interpreted as various inputs which
control the feature. The switch box can be
located where it’s ideally required for the vehicle
conversion in question, rather than having to be
mounted on the Instrument Panel (IP). If the
converter chooses to locate the switch box in a
location which is subject to an adverse
environment then the converter should design
the switch box to withstand with these conditions.
How to locate the green/white loop
The main electrical loom enters the vehicle cab
from the engine bay on the left hand side of the
vehicle via a large diameter hole in the engine bay
/ cabin bulkhead. This hole is just above the left
hand front suspension turret. See following Figure
E88307
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