Technical information

Machine Operation 26

DRV Operator’s Manual and Technical Reference (rev 1 0 June 30, 2000)

2.2 System Operation

2.2.1 Joystick

The majority of motion commands for the arm is accomplished through the use of joysticks. The

active joystick is determined via the position of the "joystick power" selector switch on the

operator’s console. Mounted on the joystick (Figure 1) are a trigger button and four (4) push

buttons. These five (5) buttons allow the operator to perform preprogrammed, complicated

operations. The joystick motion commands are listed on the table below:

Joystick Operation Arm Function

x axis long arm extend/retract

y axis short arm up/down

z axis azimuth rotation

trigger-x axis raise/lower boom

trigger-y axis extend/retract bucket

trigger-z axis open/close bucket

The joystick button operations are listed in the table below. In order to use any of the button

operations, the joystick must be in the center position. Moving the joystick off the center position

will cancel the motion in progress.

Button Operation Function

trigger + P1 automatic dump

trigger + P2 compact garbage

trigger + P3 stow arm

trigger + P4, P4 enter "preset" programming mode

P1 move to arm preset position 1

P2 move to arm preset position 2

P3 move to arm preset position 3

P4 move to arm preset position 4

The button combination "trigger + P4" is a special combination that activates the operator’s special

command mode. Pressing "trigger + P4" causes the power light to begin blinking. Pressing "P4" a

second time then enters the preset programming mode. Selecting buttons P1, P2, P3, or P4 causes

the computer to assign the current arm position to the specified button. The power light will then

cease blinking. Pressing the assigned button will cause the arm to move to the preprogrammed

position.

The button combination "trigger + P1" causes the arm to move from the current position to a

position over the compactor entryway. The bucket is automatically opened, the garbage released,

and the machine pivots to the side specified by the "machine side" toggle switch. The operator can

then reposition the arm by selecting the preset positions programmed into buttons P1 thru P4.

The button combination "trigger + P2" initiates an automatic garbage compaction cycle. The

precrush door is closed, the compactor cycled, and the door is then reopened. To shorten the

compactor cycle time, the operator may slightly increase the engine speed. During the entire