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Crowd or Telescope: There is a SLOW CROWD lever and an INTERMEDIATE
CROWD lever. Pulling back on either lever will retract the boom; pushing forward will
extend the boom. Pushing simultaneously on both levers produces fast extension speed.
Maximum retraction speed is produced with the INTERMEDIATE CROWD lever alone.
Attempting to retract with both levers will stall the engine or produce excess heat in the
hydraulic system.
Hoist: Pulling back on either the SLOW HOIST or the INTERMEDIATE HOIST lever will
raise the hook; pushing forward will lower the hook. Maximum hoist speed is obtained by
actuating both levers simultaneously.
Outriggers: The four outriggers may be operated independently or simultaneously.
Special attention must be given to avoid hitting personnel or obstacles. Assure that the
outrigger shoe is properly positioned before making contact with the ground.
Front Winch (optional): Pulling back will pull the winch line in; pushing forward will pay
the winch line out.
These controls may be used for simultaneous operation to achieve combinations of
movements. For example, the crowd and 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 the
hydraulic system.
Courtesy of Crane.Market