RHINO Power Pack series User manual

1
!
!
!
!
!
!
Power Pack series
!
OPERATION AND
MAINTENANCE MANUAL
!
INTRODUCTION

2
!
!
!
JET CENTRAL produces the most advanced micro turbines available today: smaller,
more powerful, faster acceleration, less fuel burn, lower temperatures, higher quality,
less maintenance and the best price. JET CENTRAL, an ISO 9000 Company is a full
production engine manufacturer, producing high quality parts to be assembled into
the newest line of micro turbines.
!
!
!
We are committed to our turbines in a way never seen before. You won’t find a more
knowledgeable company in micro turbines to turn than to JET CENTRAL.

3
!
!
!
TABLE OF CONTENTS
!
1 Safety
Information......................................................................................................................... 5
1.1 Safety Rules.............................................................................................................................. 7
!
2 Turbine System Components Description ....................................................................8
2.1 Parts List .................................................................................................................................. 8
2.2 Turbine ..................................................................................................................................... 9
2.3 POWERPACK / ECU ............................................................................................................. 10
2.5 Kerostart System...................................................................................................................... 11
2.6 Hand data Terminal (HDT).................................................................................................... 12
!
3 Turbine System Installation Instructions...................................................................... 13
3.1 POWERPACK / ECU .............................................................................................................. 13
3.2 Pump/Starter Battery .............................................................................................................. 15
3.3 Radio Receiver .......................................................................................................................... 15
3.4 Fuel Pump Line out ................................................................................................................. 15
!
4 Programming the POWERPACK / ECU.......................................................................16
4.1 FirstScreen........................................................................................................................... 17
4.2 Main Screen............................................................................................................................... 17
4.3 Secondary Screen...................................................................................................................... 17
4.4 Menu Screen ............................................................................................................................. 17
4.6 Info Submenu ...........................................................................................................................19
4.7 Radio Submenu.........................................................................................................................21
4.8 Transmitter Setup ...........................................................................................................21
4.8.1 Transmitter Preparation and Verification.......................................................................... 21
4.8.2 Throttle Curves .................................................................................................................. 23
4.9 Run Submenu ............................................................................................................................24
4.10 Last Run Reason...................................................................................................................... 25
!
5 Radio Link Failsafe .......................................................................................................... 26
!
6 Starting the engine ........................................................................................................... 27
6.2.1 Preparing the turbine for running....................................................................................... 27
6.2.2 Important notes for kerostart turbines................................................................................ 27
6.2.3 First engine runs................................................................................................................. 28
6.2.4. Priming the fuel system .................................................................................................... 28
6.2.5 Starting the engine.............................................................................................................. 29
6.2.6 Engine shut down procedure .............................................................................................. 30
6.3 List of POWERPACK / ECU message codes ......................................................................... 31
!
7 Fuel and Fuel System Care .............................................................................................. 32
!
8 Multiengine Installation ................................................................................................... 33
!
9 Maintenance ..................................................................................................................... 34
!
10 Troubleshooting ............................................................................................................. 35
10.1 POWERPACK / ECU START UP CODES.............................................................................35
10.2 POWERPACK / ECU SHUTDOWN CODES ........................................................................ 36

4
!
!
!
11Safety Tips..................................................................................................................................... 37
!
12 Worldwide Service................................................................................................................... 38
!
Appendix A: Rabbit Mounting Dimensions ..........................Error! Bookmark not defined.
Appendix B: Pipe Gaps..................................................................................................................... 40

5
!
!
!
1 Safety Information
!
The JET CENTRAL TURBINE ENGINES are in its own right a single stage centrifugal flow
gas turbine engine, configured to operate as a TURBOJET ENGINE for use mainly, but not
exclusively, in remotely piloted fixed wing aircraft. Such aircraft and their control systems
must be appropriately designed and constructed to be compatible with the performance of the
TURBOJET ENGINE.
!
NOTE: The airworthiness, structural design, integrity of the aircraft and its control systems
are the entire responsibility of the owner/builder/operator. JET CENTRAL and its agents
cannot accept responsibility for any failure, structural or otherwise, of the aircraft or its control
systems. JET CENTRAL and its agents cannot accept responsibility for any inappropriate or
unauthorized use of the JET CENTRAL ENGINE.
!
The JET CENTRAL gas turbine engine is a very safe, easy to operate unit. The JET
CENTRAL is a state of the art gas turbine engine and all components are manufactured
within the highest standards. If operated correctly it will provide years of reliable, trouble-free
service, with low maintenance.
!
It cannot however, be stressed highly enough, that the operating instructions be fully
understood before attempting to operate your engine. Any alterations to the engine
whatsoever, without the written consent of JET CENTRAL, will render any warranty
null and void and as a consequence the controlling body in your country may not grant
approval for use.
!
The JET CENTRAL gas turbines are high performance TURBOJET ENGINES that need
discipline, commitment to correct and safe operation. With other persons present while
operation, the TURBOJET ENGINE ALWAYS ENFORCE THE PROPER SAFE DISTANCES
FROM THE TURBINE!
The recommended minimum safe distances are:
In front of the turbine: 15 feet
Beside of the turbine: 25 feet
!
Behind the turbine: 25 feet
!
Fire extinguishers should be on hand at all times during operation, especially during the
starting sequence, the recommend type is the CO2 variety. To avoid hearing damage, always
use hearing protection when near a running turbine engine. When the turbine is running
never place your hands closer than 6 inches into the area of the intake.
!
CAUTION: EXTREME SUCTION HAZARD, which can grasp a hand, fingers or other
objects in a moment, prevails around the intake area. Always be aware of this danger!
!
!
!
Prevent foreign materials from entering the intake when working the turbine. Before
operation, make sure there are no lose parts or debris near the turbine.

6
!
!
!
Objects being sucked in can cause severe damage. The use of the supplied FOD screen is
highly recommended as FOD related damage is not covered by the Lifetime Warranty.
!
Always exercise caution around the hot parts of the turbine, to avoid burns. The outer case at
the turbine stage and nozzle reaches 400 - 500ºC (750 - 950 ºF), while the exhaust gas may
exceed 600º C (1290 ºF).
!
Make sure that the fuel is mixed with the correct amount of synthetic oil for the specific
engine. Use only 100% synthetic 2 strokes or turbine oils. (See section 2.4 for more
details)
!
Use common sense when operating model turbine jet aircraft. Never operate in or around
heavily populated areas, and in or around areas experiencing drought or dryness.

7
!
!
!
1.1 Safety Rules
!
!
!
Rule 1 Never run your engine indoors; always make sure you are in the open
air. Non-associated persons should be at least 9 meters (10 yards) away
from the engine when running. Always have a fully operational CO2 fire
extinguisher available and ready for use when starting and running your
engine.
!
Rule 2 When bench running or engine starting in an airframe; never allow yourself
or another person to stand behind or in the rear quadrant of the engine.
Always make sure the exhaust of the engine is directed away from persons
and property as the heat of the engine exhaust can cause damage and
injury.
!
Rule 3 Air will save the engine, in the event of a hot or failed start always isolate
the fuel to the engine, but always keep the start air running to the engine,
this will clear the engine of residual fuel and will keep the core of the engine
cool. If you are using the Electric starter, isolate the fuel supply to the
engine and keep the starter running. Do not be afraid to use your fire
extinguisher, a CO2 extinguisher will not harm the engine in any way. A
hand held blower is another good safety item to have on hand during the
start up and shut down of the turbine.
!
Rule 4 Never attempt to start a flooded or wet engine, this will result in a hot or wet
start and you will have flames. To dry out or clear the engine, stand it tail
pipe down and either run the starter motor or blow air through the engine
until all residual fuel has been blown out of it.
!
Rule 5 Always start and shut down the engine with the nose of the plane pointed
into the wind.
!
Rule 6 In the event of a hot start, or sever engine fire, close the throttle and the trim
lever to the fully back position and turn off the fuel isolation valve, this will
allow the engine to clear itself, be ready to use your fire extinguisher. A CO2
type extinguisher will not harm the engine in any way; if a dry powder
extinguisher is used and the powder is ingested into the engine then you
must return the engine to our service department.

8
!
!
!
!
2 Turbine System Components Description
!
2.1 Parts List
!
Before starting installation of the engine please check the contents against the parts list. If
any part is missing or damaged please contact JET CENTRAL or their agent in your country
for correction. DO NOT substitute missing or damaged parts as this will void your warranty
and your country controlling body approval for use.
!
!
!
1 - Turbine Engine
1 - POWERPACK / ECU Unit
1 - Clear Fuel Line 4mm.
1 - Clear Kerosene Line 3 mm.
1 – Clear fuel Line 6mm
1 - Battery
!
!
!
!
!
!
!
!
!
!
Box with:
!
!
!
1 - On/Off Manual Valve (6mm.)
1 - Fuel Filter
1 – S-Bus Wire
1 – Flash Memory Manuals
1 - Hand Data Terminal (HDT)

9
!
!
!
2.2 Turbine
!
Jet Central Turbines utilize a design containing a single shaft turbojet with an annular
combustor. The single stage axial flow turbine drives a single stage centrifugal compressor.
The shaft is supported by 2 fuel/oil lubricated pre-loaded angular contact bearings. The
turbine speed is controlled by the amount of fuel received from the fuel pump, which is
controlled by the POWERPACK / ECU
!
!
!
Turbine Specifications
!
!
!
Bee II
!
Rabbit 100
!
Cheetah
!
Rhino
!
Mammoth
!
Thrust Class
!
7 Kg (15.5 Lbs)
@185,000 RPM
10.2 Kg (22.48
Lbs) @152,000
RPM
!
14 Kg (31 Lbs)
@ 130,000 RPM
!
16.3 Kg (36 Lbs)
@ 117,000 RPM
!
21.5 Kg (48 Lbs)
@ 104,000 RPM
Full Throttle
Fuel
Consumption
!
0.24 Lt/min
(8.1 Oz/min)
!
0.36 Lt/min
(12.2 Oz/min)
!
0.47 Lt/min
(16 Oz/min)
!
0.52 Lt/min
(17.5 Oz/min)
!
0.70 Lt/min
(23 Oz/min)
!
R.P.M. range
!
55,000-185,000
!
42,000-152,000
!
35,000-130,000
!
32,000-117,000
!
28,000-104,000
!
E.G.T.
500°C - 700°C
(932 -1292°F)
500°C - 700°C
(932 -1292°F)
500°C - 700°C
(932 -1292°F)
500°C - 700°C
(932 -1292°F)
500°C - 700°C
(932 -1292°F)
!
!
Weight
!
0.880 Kg
(1.94 Lbs)
with starter
!
1.0 Kg
(2.2 Lbs) with
starter
!
1.360 Kg
(3 Lbs)
with starter
!
1.700 Kg
(3.75 Lbs)
with starter
!
2.240 Kg
(4.9 Lbs)
With starter
!
Diameter
!
82 mm
(3.228 inches)
!
91 mm
(3.582 inches)
!
102 mm
(4 inches)
!
111 mm
(4.37 inches)
!
124 mm
(4.881 inches)
!
Length
!
232 mm
(9.13 inches)
!
245 mm
(9.645 inches)
!
250 mm
(9.842 inches)
!
300 mm
(11.8 inches)
!
349 mm
(13.74 inches)

10
!
!
!
2.3 POWERPACK / ECU
!
The POWERPACK / ECU (Electronic Control Unit) is a total system for the control of a model
gas turbine engine. Its main function is to control and regulate the fuel pump, providing the
turbine engine with the necessary amount of fuel for safe and controlled operation.
!
The POWERPACK / ECU measures the exhaust gas temperature, the relative position of the
throttle stick and the rotor speed. It monitors all of the controls necessary to guarantee that
the engine stays between the user-defined parameters of operation, also providing fail-safe
shutdown of the engine when it has detected any important anomaly. In order to make this
assessment, the POWERPACK / ECU has a RPM sensor, a thermocouple input, a throttle
channel input, power connections for the fuel pump, starter, ceramic igniter, fuel and gas
valves, battery and a digital serial port to program and read the data in real-time to a PC or
the (HDT) Hand Data Terminal.
!
The measurements made by the POWERPACK / ECU are:
!
· Temperature of the exhaust gas
· Pump battery voltage
· Width of the throttle pulses from the radio transmitter
· Engine rotor RPM
· Engine run time
· External analog signal (Air Speed if optional sensor is being used)
!
!
!
All of these measurements can be read into and displayed on the Hand Data terminal (HDT)
that is connected to the POWERPACK / ECU by the integrated cable or into a personal
computer through the optional USB adapter. The configuration/setup parameters are stored
in the POWERPACK / ECU memory, the parameter changes are supplied by the user
utilizing the HDT or the PC program.
!
Features:
!
· RPM input: Magnetic sensor up to 250,000 R.P.M.
· Temperature range up to 1000ºC using an internal "K" type thermocouple
· PWM (Pulse Width Modulation) control of 8192 steps for pump
· Build-in electronic brake for the starter motor to help the clutch to disengage
· Open glow-plug / ceramic igniter detector
· Adjustable glow-plug / ceramic igniter power
· Battery Type Auto Selection (LiPo 2s) or (A123 3s)
· Adjustable Kero Start parameter
· Elapsed engine run timers
· Interface for communication with a PC or the HDT
· Black box function, records engine sensor measurements every 0.5 sec for up to 51
minutes

11
!
!
· Lost signal (glitch) counter

12
!
!
!
· Air Speed Sensor Input, used for limiting turbine output (Sensor Optional)
!
!
2.4 Fuel / Oil System
The fuel supply for all Jet Central Turbines requires that the user to pre mixed fuel and oil
together.
!
Internal lubrication is achieved by routing fuel oil mix to an internal T-fitting which sends some
of the Fuel/Oil mix to the bearings and the rest is sent to the fuel nozzles in the combustion
chamber. It is important to filter the fuel and use proper types of fuel and oil in the turbine
engine. Without proper filtering one or more of the injector needles could become clogged,
thus affecting the proper running of the engine.
!
Use the supplied hangar 9 fuel filter between the fuel pump and the turbine; this will help
insure that the oil flow reducer will not be clogged. Failure to use this filter can damage the
turbine by reducing the flow of fuel/oil to the rear bearing!
!
See section 8 for fuel and oil recommendations
!
!
!
2.5 Kerostart System
!
With the “Auto-Kero” start type selected in the Start Menu the starting sequence is as follows:
!
The initial start sequence of the turbine utilizes the main fuel source (Kerosene / Jet A /
Diesel). This system uses an internal fuel pump and solenoid valves to deliver the fuel to the
combustion chamber, the internal ceramic igniter is powered momentary to cause ignition.
!
When the start command is received by the POWERPACK / ECU there will be a preheat time
delay, then the starter must turn the turbine to preset RPM before the Kero Start solenoid
valve will modulate, at this time the start fuel will ignite in the combustion chamber.
!
If the temperature rise and RPM’s are within the pre-programmed values, “Switchover point”,
then the main fuel solenoid valve will modulate to deliver fuel to the main burner to bring the
engine to the proper idle RPM during the remaining starting ramp. The Kero solenoid valve is
automatically closed when the predetermined RPM is reached during the “Fuel Ramp” stage
taking the turbine to the “Running” mode, where Turbine control is handed back to the
transmitter control.
!
Note: If the temperature rise is not sufficient during the initial start phase the “IGN. Fail” error
message will be displayed and the “Pump Pw. Ignt. K” parameter will need to be adjusted to a
higher value.
!
If excessive flames are present during the initial startup verify that the cause was not a
flooded combustion chamber due to fuel line/ priming. If flooding was not the cause of
excessive flames, then the “Pump Pw. Ignt. K” parameter will need to be adjusted to a lower
value.
!
If excessive flames are present during the “SWITCHOVER” point, reducing “Pump Pw. Ignt.
K” may help, if not then the POWERPACK / ECU will need to have the parameters unlocked
and the xxx adjusted, please contact your Jet Central Rep for instructions.

13
!
!
!
!
!
If there is an excessive amount of time to get from “SWITCHOVER” to “FUEL RAMP” then
the POWERPACK / ECU will need to have the parameters unlocked and the xxx adjusted,
please contact your Jet Central Rep for instructions.
!
!
!
Caution:
!
The main difference between gas and kerosene start systems is in the case of a failed
ignition; the gas dissipates quickly into the air and is not retained inside the turbine. Kerosene
is liquid and, if unburned, will pool inside the turbine and stay there. The turbine can hold a
large quantity of kerosene internally and this excess kerosene will be ignited on next
successful startup and will be pushed to the exhaust as soon as the airflow inside the turbine
is sufficient. The exhaust will be ignited causing a hot start (in extreme cases a large fireball)
that will not hurt the turbine, but can destroy the model.
!
2.6 Hand data Terminal (HDT)
!
The Hand Data Terminal is simple and easy to operate. The HDT is used to read the different
information and to program certain parameters in the POWERPACK / ECU; this is a link
between the user and the POWERPACK / ECU. Take the necessary time to learn the
operation, as this is the only way the operator can monitor and check that the turbine is
running properly.
!
Note: If you leave the HDT connected it uses power from your RX battery.
!
HDT
!

14
!
!
!
3 Turbine System Installation Instructions
!
INSTALLATION DIAGRAM
!
!
!
!
!
!
!
n
m
z
!
!
!
!
!
!
3 rnm tubing
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
01
OPEN
0,.,tub· <:;:=::J
tng
C L OSE
=::>
!
!
!
AIR T RA P
!
Shut off manual va l ve

15
!
!
!
3.1 POWERPACK / ECU
!
Connections:
!
· Throttle input to the receiver: JR type servo cable (Throttle RX)
· Multiplex Battery input
· S-BUS Multiplex connector
· Hand Data Terminal / PC interface
· 6mm Fuel line inlet
· 4mm Fuel Line Outlet
· 3mm Burner Fuel Outlet
!
!
Note: In all power cables the black is the common and negative. This means that all the black
cables are connected internally together and to the negative of the pump/starter battery.
!
Connect the cables to their assigned places, Note that some of the JR type connectors used
can be connected in the wrong location or inverted.
!
Use the colored labels on the POWERPACK / ECU body to connect the connectors in to their
assigned place. The input / output connectors have been designed to prevent damage to the
internal circuitry in the case of an incorrect connection.
!
IMPORTANT! Use only 5 cell 6V packs on your receiver; this will insure proper
operation of the POWERPACK / ECU electronics. You can use a regulator if wished
but we find 6V packs work just fine with today's radio equipment. Tests have shown
that turbine electronics may be affected from glitches by using lower 4.8 Volt packs
powering the radio system.
!
· Use the recommended (supplied) starter motor battery type, the two supported
battery types are LiPo 2s or A123 3s.
!
!
!
!

16
!
!
!
POWERPACK / ECU Main Unit
!
Because the POWERPACK / ECU is an electronic piece of equipment, the installation in the
model aircraft is similar to that of the radio receiver. It has to be in an accessible location
within the airframe, with limited vibration and far from the heat of the engine. Also because
the internal pump motor can produce electrical noise when operating, it is highly
recommended that the installation of this equipment be done as far as possible from the R/C
receiver. Keep the power cables at the minimum possible length and avoid installing the
antenna(s) near them.
!
3.2 Pump/Starter Battery
!
The POWERPACK / ECU needs for its operation two different power supplies. The first is
taken from the radio receiver through the throttle servo connection and the second is the
(POWERPACK / ECU) battery that supplies power to the pump, starter and ceramic igniter.
!
Reversing the polarity of the POWERPACK / ECU battery will cause the destruction of
the POWERPACK / ECU semiconductors.
!
The POWERPACK / ECU battery does not need an on/off switch in the airframe since the
POWERPACK / ECU has an internal electronic switch, which disconnects it when the power
to the receiver is switched off.
!
Note: Charge your batteries properly and make sure your packs are no less than 4 flights
low. You can go more if you wish, but it’s a good habit to re-charge after every third flight.
!
3.3 Radio Receiver
!
The POWERPACK / ECU is connected to the radio receiver like a standard throttle servo,
inserted in the channel for the throttle, receiving the information of the throttle control pulses
and the receiver battery supply.
!
!
!
3.4 Fuel Pump Line out
!
The next generation fuel pumps inside the POWERPACK have an improved input (suction
line) design utilizing a 6mm barbed fitting. Connect necessary length of 6mm tube in the
suction side of the pump from the fuel supply, and the 4mm output line to the turbine. Place
the manual on/off valve between the air trap and the POWERPAC. We recommend placing
the MANUAL valve where it can be closed easily in case of an emergency.
!
NOTE: It is recommended to safety tie all barbed fittings with 0.5 mm (.020”) safety wire.

17
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
l!
!
!
!
3 mm pressure to turbine
burner
4 mm pressure to turbine main fuel line
!
!
!
6 mm Suction / to fuel tank
!
!
!
!
!
!
4 Programming the POWERPACK / ECU
!
The HDT has a LCD with 16 characters, 2 rows and four buttons which allow you to move
through the various menus and to change the data settings in each menu page. The
presentation of data has been organized in screens. The first two, displays the engine status
readings in real time and the following screens allow you to modify the operating parameters.
All of the parameters can be modified while the engine is running, so it is easy to tune the
engine without having to start it again to test the new settings. Both left buttons allow you to
move through the different screens in an ascending mode (Menu Up) or descending mode
(Menu Down). Both right buttons allow you to change the data in increasing value (Up Data)
or decreasing value (Down Data).
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
Menu down Data up/Enter
!
Menu up Data down

18
!
!
!
4.1 First Screen
!
When you have connected the POWERPACK / ECU and you
turn on the RX, appears briefly the presentation screen with
the brand and model engine.
!
!
!
4.2 Main Screen
!
This screen displays the status of the turbine temperature (in
degrees Centigrade), RPM and the power supplied to the fuel
pump (PW). This goes from 0 to 999. Note: Numbers
exceeding PW values of 600 may indicate restritctions in the
fuel system or a faulty fuel pump.
!
!
!
4.3 Secondary Screen
!
When the Menu Up button is selected the secondary screen
is displayed.
!
Displayed are the pulse width from your transmitter, the % of
the accelerator (throttle) stick, below is the voltage of the
POWERPACK / ECU battery and it’s consumption in amps.
!
!
!
4.4 Menu Screen
!
By pressing the Menu Up button the menu screen will be
displayed.
!
Displayed are the fourmenus to choose from:
Start
Info
Radio
Run
To acess each menu, simply push the corresponding button.
Start – menu down ( )
Info – menu up ( )
Radio – data down ( - )
Run – data up ( + )

19
!
!
!
All the parameters in the submenus are factory preadjusted and are a good starting point to
fine tunning your engine. Note: Only make small changes at one time when adjusting the
turbine parameters.
!
!
!
!
4.5 Start Submenu .
!
!
!
When selecting the “Start” submenu the Startup Parameters
screen is displayed.
!
!
!
!
!
!
The next screen is activated by pressing the “menu up”
button will display “Pump Pw. Ignt. K”.
Entries are numeric values between 000 and 255
!
This is the only fuel adjustment you have in Kerostart mode
but it is most critical.
A value that is too low will probably get the fuel ignited but it
will not raise the temperature enough to trigger the preheat
mode, so if you hear or see flames inside the turbine but you
still get “Ignition fail” alarm, increase this value one point at a time until it creates a sufficient
temperature change to pass to next step.
!
!
!
!
When selecting the menu up button the “Glow plug
power” screen is displayed.
!
With the Data up and Data down buttons you can change
this value. The value is programmed as a voltage. The
idea is to have the lowest possible value that will ignite
the gas to conserve battery power. Default value is 5.5V;
values can be changed in 0.1 volt increments.
!
!
!
!
Next is the “Low Batt. Volts”, this is minimum voltage that the
battery can drop during the start up without trigging the “Low
Battery” alarm, If it’s adjusted too low it can provoke hot or
failed starts, too high and it will only allow a couple of start
ups

20
!
!
!
!
!
!
4.6 Info Submenu
!
!
!
When this option is selected, the first screen will show the first avaliable timer.
!
!
!
“Timer service:” – The total time in minutes that your turbine
has run since last service
!
“Last:”- The time in seconds of your last run
!
“Cy:” – The number of cycles (start, run, off) your turbine has
!
!
!
!
!
!
!
!
The next screen lists dropped pulses, the total time duration
of the lost signal and the RX voltage
!
!
!
!
!
!
!
!
!
!
!
!
!
In the next screen is the “Tot. Time:” this timer is the total run
time of your turbine since it was manufactured
!
Below are the turbine serial number and the software version
!
!
!
!
!
!
!
!
!
!
The next six options are test options. For access to these options you must have the trim
down on your transmitter. They all have an ON (-) / OFF (+) button and you can test them
individually: the Starter, Glow Plug, Fuel Pump, Gas Valve and Fuel Valve.