312C and 312C L Excavator Joystick Controls Caterpillar


Joystick Controls
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2.1. Joysticks (Standard)
3.1. Joystick (Tool Control)




Illustration 1g00731042

(1) Stick Out

(2) Swing Right

(3) Stick In

(4) Swing Left

(5) Boom Lower

(6) Bucket Dump

(7) Boom Raise

(8) Bucket Close

(9) HOLD

(10) Seat

When you release the joysticks from any position, the joysticks will return to HOLD position (9). Movement of the upper structure will stop.

The machine control pattern is initially set at the factory to the SAE system, as shown. The pattern on the left pertains to the left joystick and the pattern on the right pertains to the right joystick.

The machine control pattern can be varied by changing the hydraulic hose connections. See your AVSpare dealer for the procedure.

Two functions may be performed at the same time by moving a joystick diagonally.

Joysticks (Standard)




Illustration 2g00825399

(A) Left Joystick

(B) Right Joystick

(1) No assignment

(2) No assignment

(3) Horn

(4) No assignment

(5) Hammer ON and OFF

(6) Blade ON and OFF

(7) Manual low idle

(8) Blade Float

Joystick (Tool Control)




Illustration 3g00825401

(A) Left Joystick

(B) Right Joystick

(1) No assignment

(2) Horn

(3) No assignment

(4) Medium pressure

(5) High pressure

(6) Blade ON and OFF

(7) Manual low idle

(8) Blade Float

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