Terex TR60 Maintenance Manual page 84

Transmission - CEC Plus II Shift System
Section 120-0070
TRANSMISSION
OUTPUT SPEED
SENSOR
Speedometer/Odometer
Refer to Fig. 19. Driven by a signal from the CEC, the
speedometer indicates travel speed in kilometers per
hour and miles per hour. A digital odometer is
incorporated in the speedometer to record the
distance travelled by the vehicle at any given time.
Speedometer Calibration Table -
All units with standard tyres
Unit Transmission
TR35 CBLT-754
TR40 M5600A
TR45 M5600A
TR60 M6600AR
TR70 M6600AR
TR100 DP-8963
Speedometer Calibration
1. Determine the impulses/mile required. Reference
speedometer calibration table.
2. Depress and hold calibration button on the
speedometer and turn the ignition keyswitch to
position '1'.
3. Release button when PULSE is displayed. The
second digit will flash. Depress the button until the
desired number is displayed the release the button
for a few seconds until the next digit flashes.
4. Repeat step 3 to obtain the desired impulses/mile.
After a few seconds only two digits will be displayed.
The speedometer is now calibrated.
14
Fig. 19 - Electronic Speedometer Output
Transmission Output Speed Sensor
This is installed in the transmission rear cover. The
sensor should be screwed in until it makes contact with
the output gear and then backed out 3/4 turn and locked
into place with the jam nut. Tighten the jam nut to
17 - 21 Nm (13 - 16 lbf ft). Refer to Section 190-0270,
SWITCHES AND SENSORS.
Hoist Interlock Pressure Switch
Pulses
Located in a tee installed in body hoist control valve.
20200
The hoist interlock is a safety feature to prevent the
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vehicle from backing up while the body is being raised.
188600
If the pressure switch is opened by the body control
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joystick being moved to the 'Raise' position, current is
208580
interrupted and the ECU will shift the transmission to
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Neutral. To obtain reverse gear whilst the body is held
in the raise position, move the transmission shift lever
to Neutral, then re-select reverse gear. This interlock
will not prohibit shifts to a forward range while the body
is being raised. Refer to Section 190-0270,
SWITCHES AND SENSORS.
TROUBLESHOOTING
The ECU is a small computer with operating limits
programmed into its memory. Whenever the ECU
detects a condition which falls outside those limits, or a
malfunctioning component, the Check Trans light, or
Do Not Shift lights will be activated and a trouble code
stored in the ECU's memory. Two soft codes
(indicating problems which may inhibit but not prevent
operation) or two hard codes (indicating problems
which will limit or prevent operation), or one of each,
can be stored in the memory at one time. The trouble
codes identify which circuit the problem is in. The
circuits consist of a component such as a solenoid, the
applicable wiring harness and the ECU.
Both the Check Trans and Do Not Shift lights will come
'On' when the ignition keyswitch is turned to position
'1'. The Check Trans light will stay on until the engine
SPEEDOMETER
WIRE 205
ECU
CALIBRATION BUTTON
SM - 1981
20 30
10 40
0 50
SM 1575 Rev 2 11-00