DLA DLA56 User manual

DLA56
DIA
TOPLEVEL GASOLINE ENG INE
USER MANUAL
Manufactured by FeiaoModel

User Man ual
Th an ks for pu rchasing DLA series engines,please read all of the
instructions below before starting your engine, especially the Sa fety
Instructions.
About DLA engine
Your DLA en gine has been specifically designed, developed
and manufactured from proprietary components for giant scale
modeling,it is very powerful, extremely lightweight, easy to adjust
an d operate, and should provide years of ou tstanding performance.
The main components
of the engine, such us the spark plug,
ignition system, bearing and carb are all imported from world
fa mous bra nds.The crankcases which are ma chined from aluminum
alloy make the
engines wear and damage re sistan t. Besides
excellent fit and finish, preci
se bearing alignment is insured,which
is critical to engine performance.
The reliable
au to ad vancing, our ignition s ys tem insures easy
starting and excellent
per formance. This ignition p rovides a
powerful spark, yet is fully shielded to insure protection from R/F
noise.
TECHNIC AL DATA
P er f ormance:
5.6HP/7500rpm
I
dl e sp eed:1300rpm/min.
13.8Kg Pulling Force/1
OOmet ers Altitude
12Kg
Pu lling Force/1800meters Altitude
Propeller: 22cm*8cm, 22cm*1O
cm
Spark Pl ug:Special type
Par ameter:
Ehaust Amount: 56cm3
Diameter stroke: 45mm*35mm
Ratio of compression: 7.8:1
Lubrica
tion R at io: 30 :1 (Trial Run) , 40:1-50:1 (Normal Flying
Weight: Main engine -1300g, mu ffler-112g, Ig ni tion-104g
Safe ty In st r uctions before starting engines
WARNING_ !
This engine is not a toy! Serious injury and lor death can
occur fr om its misuse! READ and become familiar wit h this
e ntir e i nstr u ction ma nu al. LEARN the engine's appl icat io ns,
limitations , and possible hazards. DLA is not responsible for
any loss, injury or damage resulting from the miss- use of its
products.
1. Keep all spectators at least 30 feet away from t he engine while
operating the engine.
2. Do not put anything (I.e., fingers, body parts, objects, et al) into
th e rotat in g propeller.
3.
Wear proper appa rel. Do not wear loose clothing, gloves,
neckt
ie s, jewelry, or neck str aps, which may get caught in the
movi
ng propeller.
4. Always we ar eye protection wh en starti ng th e en gine.
5. Inspect motor mount bolts and firewall
in t eg rity before op erating
the motor.
6. Turn off th e motor before making any adjustments.
7. Always use the proper size and well-conditioned propell er.
8. Always use th e correct leng th propeller bolts and ma ke sure th ey
are tigh t before every flight (scr ew t hread-lock ing glue is
re commended).
9. Remember to keep engine fuel
in a safe place, away from any
sparks, excessive heat, or anything which could
ig nite the fue l.
Remember that gasoline/mixture is highly flammable and must
be handled with extreme caution. Do not smoke while running
or operating the engine.
1
0. 00 not run the motor near loose material su ch as di rt, grave l,
power cords, ro pes, san d, etc. Loose materi al can be drawn
into the turni
ng prop causing in jury or damage.
Engine in stall ation
1. Make sure each engine comes with a fi rewa ll mounting plate
drilled wi
th four holes for #10 size screw s.
2.A spacer is needed to k ee p th e coo ling fins aw ay f rom the firew all
where the fi rewa ll is larger than the engine plate.

3. In order to make sure the engine does not speed exces sively
without a positive control installed,throttle return sprin gs must
be left in place.
4. After you have connected the return spring to the throttle servo
you may unhook it (do not remove i
t) ,since it acts as a spacer
for the butterfly.
The butterfly will work loose by re mo ving the
return spring.
5.
The ignition battery should be mounted externall y, near the cowl,
at le ast twelve inches from the receiv er or throttle servo that
connects to the receiver.
6.
The carburetor needs at least 1 1/2" (38mm) of clearance
between the intake and the bottom of the cow l. If there is less
than 1 1/2", make an
opening in the cowl below the carb at
least as large as the carb intake diamet er.
7.A long, narrow, screw driver is recommend to drill small holes
in the cowl for adjusting the needle valves, since the carburetor
must often be adjusted differently with the cowl on as compared
to off.
8.Th
ese engi nes burn between one and two ounces of fuel per
minute. Therefore, a 32 ounce or larger tank is r ec om mended.
The engines are equipped wit h a diap hragm pump c arburetor
making tank location not critical relative to the carb uretors fuel
entry position. Place the tank on the aircraft's center
of gravity
(
CG). Then air craft trim changes during fl ight will not be
necessary from a full to an empty tank.
Fuel:
Clean petrol 93# is strongly recommend f or your DLA engines.
Lubrication Ratio
of trial Run is 30: 1 while norm al flying is 40: 1,
Higher-octane fuel wi ll not generate mo re pow er and may cause
the engine to run slower and overheat.
N
ote: Damage caused by fuel additives, such as nitro, over-lean
carb sett ings, over- ad vanced timing, and over-heating are not
covered under warrant y.
Ignition system
It is imp ortant to understand how the ignition system is to be
wired. Mount the ignition module using the f
our supplied rubb er
grommets so as
to create a 1/16" gap between the ignition module
and
the mounting surface. Without this 1/16" gap the ignition
module can overheat.
Important: If the electronic ignition overheats it will malfunction
(e.g., backfiring or shutting down).
Ignition details:
• The red cable is positive (+),while the black is negative(-).
• Working voltage: 4.8v-6v.
•
It is important to achieve the correct coordination of the sensor(s)
,1 to the magnets for fitting a new ignition.
The propeller selection and installation
Make sure the prop, spinner and prop bolts before each flight!
Loose prop bolts allow prop movement which will shear the bolts.
Selection:
• The following props are recommended: 22cm*8cm, 22cm*10cm
• Only use propeller sizes that are recommed above for your engine.
• The propeller blades must be
of the same length.
Installation:
• You must use a drill press to drill your propeller from the rear.
• A drill guide is recommended, but the propeller
washer can be
used as a drill
template. (Fix the propeller washer onto the
propeller in the center-bore using a bolt and nut.)
• keep your propeller balanced.
Engine starting procedu re
1. Fill the tank with fresh filtered fuel.
1
2. Insure that your receiver and ignition batteries are charged, your
j receiver and transmitter are on. and that your throttle is set
to low.
3. Close the choke and turn on the ignition switch.
4. Rubber stick is recommend to start the engine.
5. Begin flipping the prop through its compression stroke until the
engine fires.
6. Wait for the propeller to stop spinning, turn off the ignition, and
open the choke(s).

7. Switch the ignition back on and flip the propeller again until the
engine starts.
8. warm up the engine for 15 or 20 seconds before advan ci ng the
throttle.
Carburetor Tun ing and Care
The use of a ta chometer is highly recommended. And, again,
never adjust the needles while the engine is running!
Tuni ng
1. Using the tachometer tune the engine for maximum power with
the high needle (H).
2. Using the tachometer again: ri chen the high needle (H) until the
motor runs 100-200 RPM l ess than the ma ximum RPM. Now
you should r ic hen slightly on t he high needle (H). Keep the
engine run at idle for 60 seconds. Insure that the idle RP M to be
constant. If the low needle (L) is too ric h, it may happen that idle
RPM drops until the engine stops; Lean
th e low needle (L) until
a constant idle RPM is achieved. Check the transition with a
quick throttle advance. It should
sound like it is makin g qui ck
steady powe r.
Care:
Your carb uret or screen will need to be cleaned with cl ean
gasoline and bl ow off with compressed air after every flight. Check
the choke and throttle plates for tightness.
Tr ouble Shooting
Probl em 1. The eng in e is floode d.
Solution:
Remove the spark plug; turn the engine to a position wher e the
fuel runs out and cl ean it.
Check the connections of spark plug, screws, restart the engine.
If it failed to start again, please send it back to After- sale service
center for repair.
Problem 2. The engine starts after being choked but then stops
soon aft
er.
Solution:
The low needle on the carburetor is probably too lean.
Adjust the Low End needle until you achieve a smooth idle and
a reliable transition to high throttle. Generally
if the m oto r stutters
or coughs in the mid range or when the throttle is advanced, the
low end needle is too rich and possibly even the high end needle.
Problem3. The engine runs rough and is vibrating strongly.
Solution:
Balance th e propeller. Check the ignitio n timing. Check your
plumbing for air/fuel leaks.
Check your spark plug for carbon and check the spark plug gap.
Check the motor mount to be sure it is rigid. Check to make sure
the engine is mounted on a level surface so that crankcase
is free
of tension. Check the engine and propeller bolts.
Problem4. The engine doesn't reach a normal RPM at full throttle.
Solution:
Check:
A. The carburetor settings.
B. See if the propeller is too large.
C. See if the engine is overheating.
D. The ignitiontiming.
E. The spark plug for defect.
Verify:
A. You have the correct muffler system.
B.
You have the correct gasoline, oil, and havemixed them with the
correct ratio.
DLA WARRANTY PO LICY
DLA engines include a limited TWO YEAR WA R RA NTY ON
MATERIALS AND WORKMANSHIP to the original purchaser.
T
his warranty does not co ver the f ollowing:
• Damage caused by improper handling, op er ation, modifications,
or maintenance.
• Damage caused by a crash.
• Damage caused by using improper fuel or additives.
• Damage incurred during transit to after service center.

Company:
Address:
Tel:
Fax:
Email:
Xi'an FeiaoModel Co.,Ud.
506, Xitie Gongcheng Building, NO.205 Jinhuabei
Road ,Xi'an, 710032, Shaanxi, China
0086-29- 68965278
0086-29- 82197815
Jessica : [email protected]
Vera: [email protected]
Emily:[email protected]