TM 5-2420-230-10
The hydraulic master switch is used for switching the
electrohydraulic circuits on and off.
When the operator's seat is turned toward the FEL, the
loader can be controlled using the right joystick. In this
configuration, the left joystick and the backhoe are
switched OFF. When the operator's seat is turned toward
the backhoe, the backhoe can be controlled using both
joysticks, and the loader is switched OFF.
On the left joystick, the backhoe/loader selector button is
used to select the operation of the backhoe or the FEL.
With the seat facing the FEL, this button enables the
backhoe to be operated using both joysticks as if the seat
were turned toward the backhoe. With the seat facing the
backhoe, this button enables the loader to be operated
using the right joystick as if the seat were turned toward
the FEL, while at the same time permitting operation of
the backhoe using the left joystick (backhoe dipper and
swing movements only). When this button is pressed, an
audible warning is sounded.
When the loader is operating, the green loader indicator
and fault lamp (1), located in the left joystick console, is
on; however, the loader is controlled with the right joystick.
The right joystick controls the raising of the loader arms and the bucket. Push joystick forward to lower loader arms and pull
joystick backward to raise loader arms. Tilt the joystick left to crowd bucket and tilt joystick right to dump bucket.
NOTE
The MODE switch must be set to BACKHOE A or BACKHOE B for any auto FEL functions to work.
The return-to-position option allows operator to select an FEL position and enter that position into the electronic control box.
After the position has been entered into memory, whenever the return-to-position button, located on the right joystick console,
is pressed, the loader automatically returns to preselected position. The procedure for setting the return-to-position control is:
a. Position loader arms and bucket in desired position.
NOTE
The control box will not memorize positions where bucket edge is less than 16 in. (40 cm) from the ground.
Trying to select a height below this minimum will cause the control box to select the default position.
b. Press and release memorization button located on right joystick console. The FEL position is now memorized. Every
time the return-to-position button, located on right joystick console, is pressed, the FEL automatically returns to the
memorized position. Moving right joystick in any direction stops movement.
Whenever the electronic control box or the vehicle engine is switched OFF, the position programmed by the operator is
cancelled and the default position is used when the electronic control box or the engine is restarted. The default position is the
travel position with the bucket positioned at half height of the engine cover.
