Green Hobby & Model

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OPERATION INSTRUCTIONS FOR YOUR GREEN HOBBY & MODEL RC CAR

Safety notes

· If you are a beginner to radio-controlled model cars we strongly recommend that you ask the assistance and advice of an experienced model car operator for your first attempts at driving the model.

· Your first step should be gentle practice on a broad, open site in order to minimise the risk of collisions. If you ignore this advice !' you can easily damage your car, property or even cause serious injury to people.

· Steering your Green Hobby RC models is different from normal cars, bikes etc. In an RC car you are outside the vehicle so when driving towards yourself, all commands from the transmitter must be reversed eg right is achieved by sending a left command from the transmitter. We recommend lots of space while getting used to this, and while waiting for the habit of correct steering to form, water filled bottles in an open space are ideal, and the best practice is "figure of 8" driving round the bottles, while going both away from and towards the driver.

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RC models are not toys. Young people under 14 years should only be allowed to operate this model under the supervision of a competent adult. Run your model where it will not disturb or endanger other people, and not on public streets, close to railway tracks or in the vicinity of high tension overhead cables. Many people hope that their personal public liability insurance policy will cover them for model car operation, but not all insurance companies take the same view. Green Hobby, and Green Marine Ltd strongly recommend that you ask your insurer whether you are covered, and take out a policy if necessary.

Radio control equipment from Green Hobby

For example. 2 channel RC set for the 27 MHz band or for the 40 MHz band

You will need a powerful servo for the steering function in larger cars; it should be rated at a minimum of 4 kg/cm torque.

If you notice the servos running noticeably slower or if the transmitter meter needle falls back into the red area, then you should stop running the model and recharge the batteries.

When the batteries are fully charged you should check that the radio control system is operating correctly. Do this every time you intend running the model, carry out a range check now and then. This is the procedure: switch on the transmitter and receiver but leave the transmitter aerial collapsed. Walk about 25 to 30 m away from the model and check that all the servos respond to your stick movements in the correct direction and to the appropriate extent. Repeat the check with the motor running, with an assistant holding the model car.

Green Marine & Hobby supplies colour coded frequency conversion units for your RC if pals clash with your frequency.

Preparing Your Green Marine & Hobby RC System

Before you run your model check the following aspects of your Green Hobby radio control system.

1. Is the transmitter battery fully charged I are there new dry cells in the transmitter?

2. Is the receiver battery fully charged? Aare there new dry cells in the receiver battery holder? If the battery is flat or not correctly charged, the car will not respond correctly to the controls.

3. Does the steering servo work properly and move in the correct "sense/direction"?

4. Does the throttle servo work properly, and move in the correct "sense/direction"?

The first step is to establish the neutral (centre} position of the steering and throttle servos. Connect the steering servo to receiver channel 1, the throttle servo to channel 2 and the receiver battery to the "Batt" socket. The switch should be at the OFF setting, and the transmitter battery switch in the ON position Set the steering and throttle trims on the transmitter to centre NiCd batteries

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Green Hobby & Model, the R/C source
38 Clareville Road, Harolds Cross, Dublin 6W
Tel (01) 4928776 , Fax (01) 4979946
www.greenhobbymodel.com
Sales Norman or Patrick

Items required to start the motor:

Radio Controls, Fuel; Glowstart with integral battery . Optional extras available from Green Hobby: Refuelling bottle; Glowplug spanner, Nicads and Charger for RC equipment

Green Hobby Recommended Fuels … Avoid use of other Fuels Sold by Non Engineering Model Shops

As a starting point, we recommend a fuel containing 5% nitromethane, (available from Green Hobby). If you change to a fuel containing more nitro consult Green Hobby first .When the brand of fuel is changed, or the nitro content increased, it is advisable to repeat the running-in procedure referred to in the RUNNING-IN paragraphs. For consistent performance and long engine life, it is essential to use a good quality fuel containing NOT LESS THAN 18% lubricant. Please note that with high-nitro fuels, although power may be increased for competition purposes, glowplug elements do not last so long and engine life will be shortened. These high nitro race fuels in other words make it easy to break and wear out your engine, unless you have advanced knowledge of how to keep engines cool by tuning rich, etc.

Glowstart Battery

The power source for heating the glowplug is a nicad powered glowstart, it will need cycling to get to good performance, 10 hours recharge is normal, but allow 30% extra for the first 4 charges. To extend use it is wise to take it off the glowplug when not actually starting your engine.

Long Socket Wrench

Recommended for easy removal and replacement of the deeply recessed glowplug. Many modellers are unaware that the glowplug has hard steel treads, and the engine head has softer alloy treads, so a glowplug inserted crooked will cut the treads out of the engine if it is screwed home. Take care when replacing glowplugs.

Carburettor Adjustment of a Green Hobby Car

The Needle-Valve Main Control for adjusting the mixture strength when the throttle is fully open

The Throttle Stop Screw For setting the minimum idling speed.

Generally if top speed is a full moon, and off is a closed or new moon, looking into the carburettor air intake, then a start position will be 1/6^th moon, or a 1.5-2.5mm gap open.

Note. Carburettor Readjustment will be necessary, occasionally to allow for changes in fuel formula, gear ratio or clutch engagement point.

IMPORTANT - How to Protect Your Pullstart Mechanism from Unnecessarydamage

About half of all problems experienced by newcomers to model cars are due to pullstart breakage. These expensive mistakes are not covered by your Green Hobby warranty so please read the following carefully:

· Your pullcord is shorter than your arm, so the first time you pull from the shoulder, you will pull its full length out breaking at the point of attachment to the mechanism, ALWAYS PULL ACROSS YOUR BODY, WITH SHORT RAPIDLY REPEATED 6-8" PULLS. TAKE CARE TO BE AT THE SAME LEVEL AS THE CAR, EG STANDING WITH CAR ON TABLE, OR CROUCHED WITH CAR ON GROUND, A RIGHT HANDED PERSON SHOULD PULL FROM RIGHT TO LEFT WITH A SHORT SIDEWAYS PULL, (REVERSE FOR LEFT HANDED). TO PULL TOO FAR IS THEN IMPOSSIBLE, AS YOUR BODY PREVENTS THIS.

· Your pullcord is weaker than your arm, so if the engine floods, and stops suddenly, it will break. TO PREVENT THIS PROBLEM, ALWAYS HOLD THE "T" BAR LIGHTLY BETWEEN FINGER TIPS - NEVER PALMED IN YOUR FIST, in the event of a suden engine jam, the T-bar will pop easily out of your fingers avoiding pullcord breakage.

· Your pullcord comes through a narrow exit ring.so IF YOU PULL INLINE WITH THE EXIT POINT OF THE PULLCORD FROM THE MECHANISM, YOU WILL DRASTICALLY REDUCE PULLCORD FRAYING, AND BREAKAGE LATER ON, this will double the life of your Green Hobby car's pullstart mechanism.

· High nitro race fuel increases engine compression beyond the strength of the pullcord. DO NOT USE PERFORMANCE FUELS IN CARS THAT ARE NOT YET RUN IN. Obtain the correct Green Hobby "Running-In" type fuel which is designed for this purpose, and is kind on tight new engines and pullstarts. DO NOT USE MORE THAN 5% NITRO until you know what you can get away with, and also know what replacement parts cost.

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Green Hobby & Model, the R/C source
38 Clareville Road, Harolds Cross, Dublin 6W
Tel (01) 4928776 , Fax (01) 4979946
www.greenhobbymodel.com
Sales Norman or Patrick

Running-In (Breaking-In): Starting New Engine & Green Hobby Engines

For long life and high performance, every engine needs to be properly "run-in or broken-in". The running-in procedure for this engine can be carried out with the engine installed in your Green Hobby model. Use your muffler pressurised fuel system. The running-in procedure is as follows:

· Use Green Hobby Running-In fuel only for first use - it adds up to 25% to engine life, and reduces costs

· Make sure that glowplug element glows in bright red colour.

· Open the Needle-Valve 3 turns from the fully closed position.

· Switch on transmitter and receiver and set the throttle very slghtly open 1.5-2.5mm from the idlng position of 0.5mm.

· Turn the engine by a starter to prime the carburettor, or prime from the tank with VERTICAL pushing of button.

· Connect Green Hobby glowstart to the glowplug to heat filament. (Never fail to fit the air cleaner)

· Attention: It is vitally important to set the throttle at the correct position before starting the engine. If the engine is allowed to run with the throttle too far open under "no load" conditions (i.e. with the driving wheels not in contact with the ground) it will rapidly over-heat and will be seriously damaged.

· When the engine starts, warm the engine by repeating low speed running and high speed running two or three times with the battery connected and the driving wheels not in contact with the ground. (Never keep high speed running or exceed 30% throttle).

· Disconnect the battery leads and run your Green Hobby car. If the engine stops. due to being over-rich, close the needle-valve 30° degrees and try again.

· Run your Green Hobby car on the track with this needle setting until one full tank of fuel has been consumed. Now close the needle-valve 30° degrees and run the vehicle for another full tank of fuel. Repeat this procedure until total 5 tanks of fuel have been consumed. If the engine stops at medium speed, close the mixture control screw 45° to 90° degrees. The completion of the above procedure marks the conclusion of the running-in period.

· To stop the engine, close the throttle to idling speed, then shut it off completely with trim lever on the transmitter. To cut off the fuel, pinch the fuel delivery tube to the carburettor, throttle down when engine revs up due to fuel cutoff.

If your Green Hobby engine has been disassembled it is advisable to return the Needle-Valve to the original rich, starting setting and check whether further running-in time is required before the car is raced again. In the event of any major working parts (eg, piston/cylinder liner assembly) being replaced, the complete running-in should be repeated

If a Green Hobby engine fails to start:

Check the following:

· Glowstart battery discharged or glowplug worn out.

· Fuel not reaching carburettor. Look for perforation in tubing or tank primer damage allowing pressure out.

· Engine flooded. Hard to pull. Don't prime. Tilt car so exhaust is lowest. Clear excess fuel and start again.

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Green Hobby & Model, the R/C source
38 Clareville Road, Harolds Cross, Dublin 6W
Tel (01) 4928776 , Fax (01) 4979946
www.greenhobbymodel.com
Sales Norman or Patrick

Tuning: Run your Green Hobby car with this needle-valve setting (and with throttle fully open) over the longest available straight course, in order to observe the model's speed. Next return the car to the starting point, close the Needle-Valve 30° and repeat the run, taking note of the improvement in performance. Continue with further runs, gradually reducing the Needle-Valve setting and aiming to achieve the fastest straight-line speed. Remember, if the Needle-Valve is shut down too far, the engine will overheat and accompanied by exhaust smoke the model will lose speed. At this point, throttle down, stop immediately the Green Hobby car and reopen the Needle-Valve 45-90°.

After establishing the optimum Needle-Valve setting, check the Mixture Control Valve setting as follows-

With the engine running, close the throttle and allow it to idle for about five seconds, then reopen the throttle fully. If at this point, the engine puffs out an excessive amount of smoke and the vehicle does not accelerate smoothly and rapidly, it is probable that the idling mixture is too rich. In this case, turn the Mixture Control Valve clockwise 45-90°. If on the other hand, the engine tends to speed up momentarily and then cut out abruptly when the throttle is opened, the idlng mixture is too lean. Correct this by turning the Mixture Control Valve counter-clockwise 45-90°.

Note: Mixture Control Valve adjustments should be made in steps of not more than 45-90°, carefully checking the effect, on throttle response, of each small adjustment.

Carry out these Green Hobby engine tuning adjustments patiently, under actual running conditions, until the engine responds quickly and positively to the throttle control.

Warning! Mixture adjustments (whether via the Mixture Control Valve, or the Needle-Valve) cannot be made accurately under "no-load" conditions, since such operation carries the risk of seriously damaging the engine through over-revving.

With the optimum mixture control position, light smoke is visible during high speed running, and the engine revolutions increase smoothly during acceleration. Remember that if the engine is operated with the fuel/air mixture slightly too lean, it will overheat and run unevenly. As with all engines, it is advisable to set both needle-valve and mixture control screw very slightly on the rich side of the best rpm setting, as a safety measure.

If the engines runs too fast with the throttle closed, the throttle stop screw should be turned counter-clockwise to allow the throttle opening to be reduced.

As the running time increases, optimum needle-Valve position varies to close very slightly.

Before starting your Green Hobby engine

Before starting the engine for the first run of the day, remove the glowplug and check the engine by rotating the flywheel by hand. It should rotate smoothly. Now turn the engine with an starter until fuel is drawn into the carburettor. At first, rotation may feel "sticky" due to oily residue remaining within the engine. The engine should rotate freely after fresh Green Hobby recommended fuel has been drawn into the working parts.

Check the glowplug. If the plug element is distorted, off centre or has a white appearance, engine performance may be below par. With small engines, glowplugs have to be regarded as consumable items. Therefore replace the plug if necessary, only using a plug recommended by Green Hobby engineers- .Re-fit the glowplug and start the engine.

When re-starting the engine, turn the flywheel by hand, as before (but without removing the glowplug) to make sure that there is nothing unusual, before energising the glowplug and applying the starter.

Warning! Do not attempt to turn the engine with the starter if the engine is over-primed (flooded) with fuel. To do so is likely to seriously damage the engine or the starter, and will not be covered by warranty.

Green Hobby Guarantee Limitations

This Green Hobby car and engine is constructed from the very best materials available and to the very highest engineering standards, using the most advanced precision machinery. However, the extremely high stresses imposed by car racing operation under very severe conditions, stresses which are exacerbated by the use of powerful fuels containing very high concentrations of nitromethane, constitute hazards which are beyond a suppliers control. Accordingly we regret that it is not possible to extend after-use warranty terms to used models - i.e no guarantee is offered against material wear, or damage resulting from actual use, or damage resulting from use. This booklet together with makers instruction manual are intended to help you avoid unintentional misuse.

GREEN MARINE & GREEN HOBBY & MODEL, Dublin

May not be Reproduced in any for without prior consent, or licence from Greene Marine Ltd, or Green Hobby & Model

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Green Hobby & Model, the R/C source
38 Clareville Road, Harolds Cross, Dublin 6W
Tel (01) 4928776 , Fax (01) 4979946
www.greenhobbymodel.com
Sales Norman or Patrick