CAT 304C CR/305C CR Mini Hydraulic Excavator Service & Repair Manual
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Shutdown SIS
Previous Screen
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Systems Operation
S4Q2 Engine
Media Number -KENR6787-03 Publication Date -01/01/2013 Date Updated -29/01/2013
i04956130
Governor Control - Automatic Engine Speed Control
SMCS - 1000; 1264
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Illustration 1 g03143476
Governor control module (1) is used to adjust engine speed through governor motor assembly (2).
Governor control module (1) uses inputs from travel pressure switch (3) and implement pressure
switch (4), in order to automatically adjust engine speed.
Travel pressure switch (3) detects a travel operation. The travel pressure switch sends an input signal
to the governor control module. The governor control module uses the switch information to control
the engine speed.
Implement pressure switch (4) sends an input signal to the governor control module. When the
joysticks are moved from the NEUTRAL position, the pilot logic passage is blocked, pilot oil is
directed to the implement pressure switch. The increase of pilot pressure activates implement pressure
switch (4). The implement pressure switch sends an electrical signal to the governor control module.
The switch information is used to control engine speed.
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The low idle indicator lamp illuminates when the governor control module reduces the engine speed
to low idle. The governor control module automatically reduces engine RPM when the when the
machine has been inactive for 5 seconds. The governor control module is designed to reduce fuel
consumption and noise. Lower engine speeds can also increase engine life.
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What's Included?
Lifetime Access
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Print one or all pages of your manual
$41.99
Discover the detailed CAT 304C CR/305C CR Mini Hydraulic Excavator Service & Repair Manual, specifically tailored to the Cat 304C CR and 305C CR mini excavator series. This comprehensive manual covers:
- Systems operation and troubleshooting
- Detailed specifications and technical information
- Hydraulic system overview and schematics
- Testing, adjusting, disassembly, and assembly procedures
- Included S4Q2 and S4QT engine service data
Ideal for professional mechanics and DIY enthusiasts alike, this manual provides essential insights for maintaining and repairing the CAT 304C CR/305C CR mini hydraulic excavator.
