S0802190K
Page 14
Electrical System
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OPERATION IN ENGINE DERATING
For the purpose of reducing the input torque during the clutch slip when a shuttle shifting is done, engine
derating is to be used.
When the shuttle shifting is occurred, the contacts points "30" and "87" of the engine derating relay (7) are
closed due to the signal of the transmission controller (10). Then the engine derating relay (7) supply
current to the engine derating solenoid which actuates a throttle lever linked limited speed governer in fuel
injection pump.
In accordance with this, the engine rpm will be dropped down for maximum 0.7 seconds. (The operating
time is set automatically in dependent of vehicle speed.)
AHS0070L
Figure 8 ENGINE DERATING CIRCUIT
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