35
Twin Disc, Incorporated
Operation
Power Shift Transmission System Operator’s Manual #1020510
D.C. Power Supply
Input power to the electronic control is supplied by the customer.
#1019142 in Engineering Drawings.
The positive lead should be connected
directly to the positive terminal of the 24 volts DC battery post with no other
loads. The circuit protection device must not exceed time/current characteristics
of an ATO type fuse. The neutral disconnect switch is actuated by a customer
supplied relay, and is used to turn the disconnectable solenoid power off when
in neutral. The system ground is through a single wire connected directly to the
battery negative. The electronic control is active when applied voltage is
between 10 and 28 volts dc.
Note:
The 10 amp input power circuit protection device must
not exceed the time/current characteristics of an ATO type
fuse. If the installed device is larger or slower responding
than specified, the wiring could be damaged and the
system made inoperable.
Interruption of Power
1.
Interruption of power to the electronic control for 100 milliseconds or
more will require resetting the input power to the electronic control by
cycling the key switch once the input voltage has been restored above
the 11 volt dc level.
2.
The control system will be in neutral (
N
) on power up. This means that
after regaining power from some power fault, the electronic control will
place the transmission in
N
even if the transmission output shaft is
rotating.
Summary of Contents for TA-90-8501
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