nifty TrackDrive TD150T Series Operating/Safety Instructions Manual page 33

1 Operates Platform Lev.
2 Operates Telescope
3 Operates Lower Boom
4 Operates Upper Boom
5 Operates Swing
4.4.3 PROPORTIONAL BLOCK
The proportional block and adjacent green button, serve to provide a manual override for the outrigger
and variable width controls. This function permits a machine to be stowed for transport if the platform
controls become inoperative for any reason. The Green button, situated inside the canopy, becomes
operative only when the base control key switch is switched to the "ON" position and the platform
selector is in the tracks position. If the canopy green button is depressed, the Base control green
button is switched out, and vice-versa. Pushing and holding the green button energises the hydraulic
circuit providing flow for the proportional block. Moving the selected lever forward or backwards
allows individual control of each outrigger leg. Great care should be taken when using these controls
to ensure that adjacent personnel and particularly the operator themselves are not in the vicinity of the
leg being raised. Similarly, when using the variable width control, care should be taken when standing
adjacent to the machine. Control of the drive function is not recommended, nor is it possible with the
ground controls, due to the risk of entrapment.
When the control key switch is in the "OFF" position, the canopy green button is rendered inoperative,
and the proportional control block is available only from the platform controls.
English/USA 12/09
IF ALARM SOUNDS, DESCEND IMMEDIATELY AND RE-LEVEL THE MACHINE
BASE USING THE FOUR OUTRIGGER CONTROL LEVERS
TrackDrive (TD) Series
Operating & Safety Instructions
FWD for forward
UP for out
UP for up
UP for up
UP for right
BACK for back
DOWN for in.
DOWN for down
DOWN for down
DOWN for left
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Courtesy of Crane.Market