would be most concerned with is at the fuel
flexible cables, and sheaves. All of these parts
control and throttle quadrant. See figure 4-29.
make up the control system and must be adjusted
Before starting the adjustment of the power
or rigged from time to time. On single-engine air-
controls at the engine, you should make sure
craft, the rigging of the power lever controls is
that the power lever is free from binding. Use a
not very difficult. The basic requirement is to have
the desired travel on the power lever and correct
tensionometer to ensure correct cable tension. If
travel at the fuel control. However, on multi-
the power controls do not have full throw or are
binding, the entire system should be checked and
engined jet aircraft, the power levers must be
the discrepancies repaired before adjusting the
together or married at all power settings.
power control system. Low cable tension may
The rigging of the proper control cables and
cause sluggishness or insufficient travel of the
push-pull rods is usually accomplished at the
control. High cable tension may result in damaged
pulleys, bell cranks and cables, or vibrations in
factory, and no rigging is required except when
the controls.
a part has been changed. The control system you
4-41