Terex TR45 - Page 62


3-303-30
Description and OperationDescription and Operation
1. Electronic Control Unit (ECU) -1. Electronic Control Unit (ECU) -Contains an electronic microcomputer. TheContains an electronic microcomputer. The
ECU receives information in the form of electronic signals from switches andECU receives information in the form of electronic signals from switches and
sensors, processes the information, and sends electronic signals to thesensors, processes the information, and sends electronic signals to the
appropriate solenoids which control the transmission.appropriate solenoids which control the transmission.
2. Interface Box -2. Interface Box -Contains fuses and relays.Contains fuses and relays.
3. Gear Shift Selector -3. Gear Shift Selector - The shift selector is a remote mounted lever type. TheThe shift selector is a remote mounted lever type. The
gear shift selector is connected to the ECU by a wiring harness. The shift levergear shift selector is connected to the ECU by a wiring harness. The shift lever
has 6 forward ranges and 2 reverse ranges, as well as a neutral position.has 6 forward ranges and 2 reverse ranges, as well as a neutral position.
WARNINGWARNING
Do not allow the vehicle to Do not allow the vehicle to coast in Neutral. This practice can result incoast in Neutral. This practice can result in
severe transmission damage.severe transmission damage.
The shift selector has a single digit LED display, that during normal operation willThe shift selector has a single digit LED display, that during normal operation will
display the gear selected (display the gear selected (
Not gear attainedNot gear attained
). Diagnostic information can be). Diagnostic information can be
displayed on the single digit LED display by pressing the diagnostic displaydisplayed on the single digit LED display by pressing the diagnostic display
button. There is a hold override button that must be pressed when shiftingbutton. There is a hold override button that must be pressed when shifting
between R, N and D. The hold override button is released when desired selectorbetween R, N and D. The hold override button is released when desired selector
position is reached. The selector lever can move freely between D and theposition is reached. The selector lever can move freely between D and the
number ranges without pressing the hold override button.number ranges without pressing the hold override button.
The transmission upshifts and downshifts automatically between first range andThe transmission upshifts and downshifts automatically between first range and
the highest range selected on the range selector in direct response to throttlethe highest range selected on the range selector in direct response to throttle
position and transmission output speed.position and transmission output speed.
When Reverse is selected the reverse alarm sounds and the reverse lightWhen Reverse is selected the reverse alarm sounds and the reverse light
illuminates at the rear of the vehicle. This feature warns personnel to theilluminates at the rear of the vehicle. This feature warns personnel to the
immediate rear of the vehicle that the operator has shifted to reverse.immediate rear of the vehicle that the operator has shifted to reverse.
When drive 'D' is selected, the transmission automatically upshifts and downshiftsWhen drive 'D' is selected, the transmission automatically upshifts and downshifts
Gear Shift SelectorGear Shift Selector
966966
1
1
22
33
44
55
DD
NN
RR
MODEMODE
11
RR
22
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