7-8 ENSTROM 280FX OPERATOR’S MANUAL
Rev. 9
Report No. 28-AC-020 Nov 5/13
4. The EDM-700 also monitors EGTs for signs of pre-ignition.
This will appear as a sudden redline in EGT and the affected
cylinder column(s) will flash while the display will show an
EGT higher than 2000°F. At this temperature pre-ignition
can destroy your engine in less than one minute unless
immediate corrective action is taken. Corrective action may
entail reducing power or enriching the mixture.
Refer to the Insight Avionics GEM 603/610 Series Pilot’s Guide
or the J. P. Instruments EDM-700 Pilot’s Guide for additional
information.
7-6. Cabin Heat
The cabin heat control is located on the right-hand side of the
pilot’s seat, just to the left of the clutch. By moving the control
in or out, the operator regulates the amount of cabin heat
through the main output louvers located in the center of the
seat structure and two smaller louvers located just forward of
the tail rotor control pedals on both sides of the cabin floor
.
7-7. Clutch Engaging Lever
The clutch engagement lever is located at the right side of the
pilot’s seat on the forward face of the seat structure. The clutch
lever is provided as a means of engaging and disengaging the
rotor drive system. A red warning light (CLUTCH ENGAGE)
illuminates when the master switch is on and the clutch is
disengaged.
The rotor drive system is engaged by pulling the clutch lever
upward and rearward until the lever hits the stop and the
warning light goes out. The handle can then be stowed by
lifting it straight up and pivoting it down to the floor. When it
is in the stowed position, the handle should
lie flat on the floor. If it does not lie flat on the floor in the
stowed position, the clutch rigging should be checked as
described in Section 11 of the Maintenance Manual. The
clutch lever must be stowed whenever the rotor drive system
is engaged.
This electronic document is not linked to a subscription for revision control or distribution. Refer to theTechnical
Publications Status link under the Technical Support Page of the Enstrom Helicopter website for the current revision
level of the 280FX Rotorcraft Flight Manual.
UNCONTROLLED COPY WHEN DOWNLOADED OR PRINTED
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