Helicopter mechanics
with model turbine engine
68
Trouble-shooting
The following table lists the most common sources of error and how to eliminate them:
Problem
Cause
Remedy
Turbine fails to ignite
Propane not connected.
Propane tank is empty, or gas
pressure too low (e.g. very low
external temperatures).
Glowplug not glowing brightly
enough.
Glowplug faulty or plug filament
not pulled out sufficiently.
Connect propane.
(Re-) fill propane tank.
Adjust glowplug voltage (glowplug
must glow bright red!).
Check glowplug and replace if
necessary. Glowplug filament must
be pulled out by at least 3 - 4 mm!
Start-up process not
initiated.
Turbine is still too warm, Post-run
cooling process not yet finished
(-> green LED flashes).
Turbine battery not connected, or
battery flat or almost flat.
Glowplug defective (-> red LED
flashes).
3-core lead to turbine not plugged
in.
Wait until post-run cooling is
finished (green LED no longer
flashing).
Connect / charge battery.
Check / replace glowplug.
Check / connect lead.
Jet-tronic does not
respond to transmitter
commands
Radio control system has not been
correctly "learned", or RC system
has been changed or re-
programmed since "learning".
Repeat "learning" process for RC
system, check function in
RC-Check menu.
Turbine ignites, but
start-up process is
halted
Air in fuel feed lines.
Fuel pump jammed / fails to start
Propane tank almost empty.
Bleed fuel system (->manual
mode).
As soon as red “Pump running”
LED glows the fuel pump must
run!!!
If necessary test fuel pump (->
manual mode).
(Re-) fill propane tank.
Starter unit fails to
engage correctly, or
slips (-> continuous
"whistling noise")
Oil / dust deposits on the
compressor nut / coupling.
De-grease compressor nut with
paintbrush and cleaning agent (e.g.
acetone / cellulose thinners).
Turbine starts, runs
up to speed, but
remains at idle speed.
No response to rpm-
slider, green LED is
off.
RPM-slider not yet moved to idle
Reduce rpm-slider to idle and wait
until the green "OK" LED lights, to
indicate that rpm-control has been
transferred to the pilot.
Содержание JetCat 6810
Страница 31: ...31 Bedienungsanleitung ...
Страница 101: ...31 Operating Instructions Graupner Jetcat Modell Helicopter Turbine PHT 3 ...
Страница 107: ...37 Wiring diagram fuel pump and starter glowplug Connections overwiew of the turbine s operating components ...
Страница 171: ...31 Instructions d utilisation ...
Страница 177: ...37 Schéma de connexion Pompe à carburant et Starter Bougie Connexions des éléments de commande Généralité ...