Broderson IC-20-1J, Operation And Maintenance Manual

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2-8
A neutral safety switch in starter circuit prevents starting engine with the transmission
engaged. The control lever must be in neutral to start engine.
The steering wheel is directly mounted on the steering control unit of the power steering
system. The steering system will provide limited steering even if the engine should stop
running.
The controls for operating the boom swing, boom elevation, boom telescope, hoist and
outriggers are located along the forward control station area. These handles are directly
connected to the hydraulic control valve. The placard located adjacent to these handles
identifies the function controlled and movement resulting from each handle actuation.
Swing: Pulling back on the lever will rotate the boom to the operator's left; pushing
forward will rotate it to the operator's right.
Boom: Pulling back will raise the boom; pushing forward will lower it.
Telescope: Pulling back on the lever will retract the boom; pushing forward will extend
the boom.
Hoist: Pulling back on the lever will raise the load line; pushing forward will lower the
load line.
Outriggers: The three outriggers must be operated simultaneously. Special attention
must be given to avoid hitting personnel or obstacles. Pads or cribbing should be used
for leveling, but the outriggers must be fully extended.
All controls may be used for simultaneous operation to achieve combinations of
movements. Some controls must be used together. For instance, the boom telescope
and the hoist controls must be used together to maintain clearance between boom and
load line hook.
Avoid holding a control lever in the open position after the function has reached the end
of its travel. This will impose unnecessary stresses on the components and heat up the
hydraulic system.
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