312C and 312C L Excavator Blade Control Caterpillar


Blade Control
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Illustration 1g00825821

(B) Right joystick

(1) Blade float activation switch

(2) Blade control switch


Float Mode - To activate the float mode, keep blade control switch (2) depressed and then depress blade float activation switch (1). Release blade control switch (2) and then release blade float activation switch (1). The blade will lower to the ground. The blade will remain in float mode until the control mode is activated.

Blade Control Mode - To activate the blade control mode, keep blade control switch (2) depressed and then move the joystick in one of the following directions:

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  • Pull the right joystick backward in order to raise the blade.

  • Push the right joystick forward in order to lower the blade.

Note: This mode deactivates the float mode.




Illustration 2g00825806


Lock for the Blade Control Mode - When the blade control mode is locked, blade control switch (2) does not need to be pressed in order to control the blade with the right joystick.

Note: The float mode is not functional when the lock for the blade control mode is on.


Blade Control Mode Locked - Press the top of the switch in order to lock out the Blade Control Mode.


Blade Control Mode Unlocked - Press the bottom of the switch in order to deactivate the lock for the blade control mode.

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