Controls - Wittke STARLIGHT Maintenance Manual

68 Pneumatic System
Figure 6-4 Air dryer
N : Poorly maintained pneumatic control systems are a major cause of packer control failure.
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Controls

Standard arms/forks control is by means of a pneumatic joystick (see Figure 6-5) mounted next to
the driver.
The joystick operates at 90° and 45° angles. For example, you can lower the arms and forks
simultaneously.
Figure 6-5 Pneumatic joystick
: The Arms Up and main joystick's air lines are the only lines with a cutout valve. This cutout
N
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valve cuts air to the joystick and to the Arms Up function when the packer is not in the "home"
position or when the top door is not fully open.