ELECTRICAL
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CX EXCAVATORS
RPM CONTROL – ALL MODELS
Breaker Revolution Control, All Models
1) When the breaker pressure switch is hydraulically closed, the engine rpm will decrease to
a preset speed.
2) The throttle control knob speed setting must be set higher than the preset speed.
Breaker / Aux. pilot pressure
The rpm for the breaker must be preset when using the breaker mode.
The setting instructions are in the Optional Reset Procedure in Section 7 of this manual.
When stepping on the breaker pedal, the pressure switch under the cab closes and a signal
is sent to the controller. Engine rpm will decrease to the preset speed as long as the switch
is closed. When the pedal is returned to neutral, the engine rpm will return to the throttle
knob setting. The throttle knob setting must be above the preset speed for breaker revolution
control to function.
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