VA Boom Controls
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312C and 312C L Excavator
[SEBU7565]
312C and 312C L Excavator
Specifications
312C and 312C L Excavator
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HYDRAULIC SYSTEM
VALVE GP-CONTROL
312C and 312C L Excavator
VA Boom Controls
The VA boom extends the working range of the machine by hydraulically increasing or reducing the angle of the boom. The VA boom is equipped with a hydraulic check valve to prevent the boom from falling in case a hydraulic line breaks.
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Illustration 1 | g00827090 |
Switch for VA boom |
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![]() | On - Push the top of the switch in order to activate VA boom control. |
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![]() | Off - Push the bottom of the switch in order to deactivate VA boom control. |
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Illustration 2 | g00575819 |
(1) Lock pin (A) This position is not used. (B) LOCKED position (C) VA BOOM position |
The VA boom pedal is located to the left of the travel pedals.
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![]() ![]() | VA Boom Extend - Push down on the front of the pedal in order to extend the VA boom. |
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![]() ![]() | VA Boom Retract - Push down on the rear of the pedal in order to retract the VA boom. |
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Illustration 3 | g00826120 |
(A) Left joystick (B) Right joystick (7) VA boom |
The joysticks for tool control may be used with the VA boom.
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![]() | VA Boom Extend - Push control (7) forward in order to extend the boom. |
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![]() | VA Boom Retract - Push control (7) rearward in order to retract the VA boom. |
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