Carrier Transicold X4 7300 Operation & Service Manual Download Page 105

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5–15

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keys. If the main microprocessor is setup using the dis-
play mounted keys and this feature is needed, it may
be loaded at a later date.

5.5.1

Pre-Replacement Steps

Before the unit can be started using the replacement
main microprocessor certain unit specific and time sen-
sitive data must be known.

TIP

Print this page and fill out the following for
use when entering the data.

That information includes:

• Unit Serial Number. ____________________

• Unit Model Number. ____________________

• Engine Protect Hours. ___________________

• Switch On Protect Hours. ________________

• Engine Sleep Hours. ____________________

• Switch On Sleep Hours. _________________

• High Speed Hours. _____________________

• Clutch Cycles. _________________________

• Start Cycles. __________________________

• Date and Time. ________________________

• ID Number. ___________________________

1. If possible, power the original system up by

entering PC Mode, or by placing the START/
RUN - OFF switch in the START/RUN position.

2. Insert a Data Transfer USB memory device and

download all data from the DataLink data
recorder. If a Data Transfer USB memory device
is not available, data may also be downloaded
using TRU-Tech and a service cable.

3. Scroll through the data list and hour meter read-

ings and make note of the unit specific data
listed above. If the original main microprocessor
will not power up, gather the unit specific data
from the model/serial number nameplate and
estimate hour meter readings from the unit
maintenance records. If a Data Transfer USB
memory device will be used to setup the
replacement main microprocessor, write the
required data to the device. Also, if the current
configuration file is available for this customer
from the TransCentral web site, it should be
transferred to the device prior to beginning work.

5.5.2

Main Microprocessor Replacement

1. Ensure the unit will not start automatically by

disabling any two way communication, placing
the STOP/RUN–OFF switch in the OFF position
and removing the negative battery cable.

2. Release the tabs on and remove the two 35 pin

connectors and 8 pin connector from the front of
the module.

3. Replace module. Tighten mounting hardware to

96 inch/lbs (10.8 Nm).

4. Reinstall connectors ensuring tabs are fully

locked in place.

5.5.3

Main Microprocessor Setup

1. Ensure that the replacement main microproces-

sor is in place, all wires connected and the neg-
ative battery cable is reconnected.

2. Make sure the latest software has been loaded

to ensure all modules are compatible, refer to

Section 5.3.2

NOTICE

When a module is replaced, software
should be upgraded before switching the
unit on. This will ensure software com-
patibility of all modules.

3. Power up the system by placing the START/

RUN - OFF switch in the START/RUN position.
The display will immediately go into the Unit
Identification Configuration screen. The unit
model information must be entered before the
System can display the correct screens for this
unit.

4. Select the correct model and then enter the cor-

rect model number by using the UP or DOWN

ARROW keys. Scroll through the list until the

correct Model Number appears (verify by read-
ing the Model/Serial Plate on the unit). Press the
“=” key to enter the new model number.

5. Press the UP ARROW key again, and the Unit

Serial Number field will appear. Refer to

Sec-

tion 5.2.3

for instructions on entering the unit

serial number.

6. Press the UP ARROW key again, and the

Trailer ID field will appear. Refer to

Section

5.2.3

for instructions on entering the Trailer ID.

NOTICE

Ensure that the clock you are using is
accurate. Also, some customers are
located in different time zones from the
repair location. If you know the owners
desired location time, enter that time. If
you don’t, enter the current time at your
location.