Roundhouse FOWLER Benutzerhandbuch

FOWLER

Owners Handbook

Operating Instructions

IMPORTANT:

Read these instructions carefully before operating the locomotive.

The following items are required for running this engine and are not

included with the model.

Fuel Butane gas. See 'Filling the gas tank'

Water See 'Filling the boiler'

Lubricating oil See 'Lubrication'

SAFETY PRECAUTIONS

This is a working model locomotive using steam under pressure and

highly flammable fuel. Provided it is operated with reasonable care and

attention, no problems should arise.

It is intended for use out of doors and must only be operated in a well

ventilated area.

Whilst the locomotive is in use, hot gasses are exhausted up the chimney

and excess steam frequently blows off through the safety valve even when

stationary, so operator and spectators should not bend over the model.

As you will appreciate, this is not a toy and is therefore unsuitable for

young unsupervised children.

Follow manufacturers recommendations regarding the safe storage of

Butane gas canisters.

Some areas of the model will get quite hot whilst it is operating, so a pair

of gloves are provided in the tool kit for your protection. Always have to

hand either a fire extinguisher or wet cloth when operating the model.

CONTENTS

Tool kit Page 4

Running in Page 4

Access to controls Page 4

Coupling engine and tender Page 4

Identification of parts of the locomotive Page 5

Preparations for operation Page 6

1. Filling the Gas Tank Page 6

2. Filling the Boiler Page 6

3. Lubrication Page 7

4. Lighting the Burner Page 8

Running the locomotive Page 9

Driving manually Page 10

Driving by radio control Page 11

Altering wheel gauge page 12

Trouble shooting & maintenance Page 13

Storage between operating sessions Page 13

Steam leaks Page 13

Regulator not shutting Page 14

Radio control Page 14

Gas system Page 15

Service and parts. Page 20

Boiler and Gas Tank Certificate, Pages 17 & 18

(EC Declaration Of Conformity).

Fowler Instruction Booklet

TOOL KIT

The following items are included with your locomotive.

One 60ml bottle of special steam oil for use in the cylinder lubricator.

One 60ml syringe with plastic tube for filling the boiler with water.

One set of spare washers and ‘0’ rings.

One spare gas jet.

One Allen key for cylinder socket cap screws.

One pair of protective gloves.

One cleaning duster.

One wheel setting (back to back) gauge and key.

RUNNING IN

All locomotives are test run before leaving the factory, but will require

several hours of running in, when new, to overcome initial tightness and

allow valves etc. to ‘bed in’ completely. It is recommended that the model

is run with light loads for the first few hours of operation. Also, the loco

will waste a proportion of its water and steam until ‘run in’ due to leaking

slide valves, a tendency to prime more, and simply overcoming the initial

tightness of the moving parts.

As the model heats up and cools down each time you raise steam, screws

and nuts have a tendency to stretch and loosen a little so you will also

need to make regular checks and ‘nip up’ any that become loose.

ACCESS TO THE CONTROLS

For normal operation, all controls are accessible without the need to

remove any part of the locomotive.

The gas regulator is accessible through the side of the cab as is the steam

regulator and reversing lever on manual control engines.

The radio control receiver, batteries and switch are housed in the tender.

Simply lift out the dummy coal to allow access. Batteries are not included.

COUPLING ENGINE AND TENDER

The tender has a steel pin under the front which should be fitted into one

of the two holes in the draw bar from the engine. Use the first hole for

close coupling if running on large radius curves, or the second hole if

curves are tight.

On radio controlled versions, the servo leads pass through the rear buffer

beam and should be coupled to the leads from the tender. Note that these

are marked so that the correct plug and socket can be connected together.

IDENTIFICATION OF PARTS OF THE LOCOMOTIVE

Radio controlled version illustrated

1) Lubricator drain screw. 2) Lubricator filler cap.

3) Reversing servo (this is replaced by a

reversing lever on manual models).

4) Pressure gauge. 5) Gas filler valve. 6) Safety valve.

7) Boiler filler plug. 8) Gas regulator. 9) Steam regulator.

10) Steam regulator servo and linkage (not fitted

on manual control engines). 11) Gas burner.

PREPARING FOR OPERATION

The locomotive must be serviced before being operated. It is important to

perform all the following operations.

1) FILLING THE GAS TANK

The filling of the gas tank should only be carried out in a well-ventilated

area, where there are no naked lights or other lighted locomotives close

by. Ordinary Butane or Iso-butane gas (as used in gas cigarette lighters) is

the preferred fuel, though for economy, the larger canisters as used for

blowlamps or camping stoves etc. are better. The larger canisters have an

EN417 threaded self sealing valve on top and require a special adapter to

couple up to the filler valve on the locomotive. A special brass gas filler

adapter is obtainable from your local garden railway supplier or direct

from ROUNDHOUSE.

Mixed gasses are also available and may be used if ordinary butane or iso-

butane are not available, but see the ‘Gas System’ section for more

information on this subject.

Before attempting to fill the gas tank, make sure that the gas control valve

is closed by turning it clockwise.

The filler valve for the gas tank is on top of the tank under the cab roof.

Invert the gas canister and place its nozzle over the gas filler valve.

Support the tank from underneath and press the canister down. The gas

will be heard hissing as it enters the tank and a small amount will escape

around the valve. This is quite normal and is the tank venting as the liquid

enters.

After about 20 to 30 seconds, liquid gas will emerge from the valve

showing that the tank is full. Remove the canister immediately.

2) FILLING THE BOILER

A syringe and plastic pipe are supplied for filling of the boiler.

The boiler is filled with water through the filler plug housed inside the

centre dome on top of the boiler. This painted brass dome is a substantial

and heavy item, being turned from solid brass. Care is needed when

removing the dome, especially when the engine is hot, as the dome itself

will be hot. Take care not to drop the dome onto the locomotive, as the

weight of it may damage the model. Lift off the dome then remove the

plug by unscrewing, gripping the large knurled head. Fill the boiler right

to the top with clean water. Distilled water is recommended if available.

As an alternative to distilled water if this is unavailable, clean tap water

can be used in soft water areas.

Also, rain water or water from a dehumidifier can be used provided that it

is passed through a paper wine or coffee filter to remove any particles or

debris in the water.

Do not use deionised water as this type of water may cause long term

damage to the boiler and fittings.

There has to be a space above the water to allow steam to be raised so,

insert the end of the plastic pipe into the boiler and withdraw 30ml of

water with the syringe.

Replace the filler plug finger tight.

3) LUBRICATION

Regular lubrication of all working parts is important and should be carried

out before each operating session. There are two types of lubrication

required: The external moving linkages and bearings are lubricated with a

medium oil such as motor engine oil, and the internal steam mechanisms

such as cylinders, pistons and valves are lubricated with a special steam

oil that is mixed with the steam. Infrequent external lubrication will allow

parts to run dry, and over oiling can form pools around operating parts

that attract dirt and grit. If too thin an oil is used it will evaporate very

quickly as the loco gets hot –leading to dry running. We recommend the

use of a 20-50 motor oil for external lubrication.

When carrying out general lubrication, do not forget the regulator spindles

(see Trouble Shooting section for further details of oiling the regulators).

Internal lubrication is achieved by steam oil that is mixed with the steam

in the displacement lubricator, housed in the left-hand side of the cab.

Remove the knurled cap from the top and slacken the drain screw two or

three turns at the bottom but do not remove it. Any water in the lubricator

will run out through the drain screw. Tighten the drain screw and refill

with the steam oil supplied, then replace the cap. Take time filling the

lubricator, especially when cold, as the oil takes time to run down and

may trap an air bubble. Both cap and drain screw are fitted with ‘0’ rings

and need only be closed finger tight.

NOTE: Only special steam oil as supplied should be used in the lubricator

and under no circumstances should ordinary oil be substituted, or damage

may result.

The gas and steam regulators will require periodic lubrication –see the

troubleshooting section for details.

4) LIGHTING THE BURNER

WARNING: Before lighting read the section on gas system

troubleshooting and be aware of potential problems. If the gas system is

not operating correctly, shut it off immediately or damage may result.

Move the locomotive to another location before lighting. Butane is

heavier than air and small pockets of gas can collect around the

locomotive during filling.

To light the burner, hold a lighted match or cigarette lighter over the top

of the chimney and slowly open the gas regulator by turning it anti-

clockwise. The gas should ignite almost immediately with a pop as the

flame travels down the chimney and into the boiler tube. The burner

should be audible but not too loud.

NOTE as stated above, the gas regulator should be opened slowly until

the burner ignites. If opened too quickly, particularly when the engine is

cold or if the gas tank has just been filled, it is possible that the flame may

not travel back into the boiler flue but stay in the smokebox. If this should

happen, the burner will sound quite different to normal and the blue flame

will be visible in the smokebox if viewed down the chimney from a safe

height. Should this happen, turn off the gas immediately or damage may

result and then re-light it. If the problem persists and it is not possible to

ignite the burner correctly, then a dirty jet should be suspected and

cleaned as detailed in the Gas System Troubleshooting Section.

For the first couple of minutes keep the burner on low. This is important,

as until it warms up, the flame will be a little unstable and turning it up

too much could cause it to go out. Also, with a completely full tank, liquid

gas could be drawn off instead of vaporized gas, which can also

extinguish the flame.

After a couple of minutes, the gas control valve can be opened more to

speed up steam raising. Open the gas regulator slowly to about one full

turn. The full range of adjustment (closed to fully open) is achieved within

the first full rotation of the gas regulator knob any more is unnecessary.

RUNNING THE LOCOMOTIVE

When full working pressure has been reached (between 35 and 40psi), the

safety valve will start to blow off steam. Steam generation can be

controlled by the gas valve in the right hand cab doorway. If the safety

valve blows off frequently during running, then too much steam is being

produced which wastes water and gas. Turning down the burner will

decrease the amount of steam created. Conversely, if steam pressure is not

maintained during a run, then the burner should be turned up.

After a few minutes of running it may be noticed that the gas pressure

through the burner has increased. This is due to the gas tank becoming

warmer and so increasing the gas pressure. Simply turn the gas down –

this may need to be performed several times during a run. The art of

balancing steam generation to the operational requirement by the

adjustment of the gas control valve will quickly be learned.

The gas tank has a duration of about 25 minutes, though this will vary

depending on gas valve setting. The boiler should not be allowed to run

dry, and the gas tank capacity is such that the gas should run out before

the water. When the gas is fully used up, the steam pressure in the boiler

will be seen to gradually drop until the loco comes to a halt. Should the

water expire before the gas is fully used, the pressure will drop rapidly

and the loco will stop. Check the pressure gauge –if this is zero turn off

the gas.

No damage will result if the gas is turned off immediately. Never re-fill

the gas tank without first re-filling the boiler.

DRIVING THE LOCOMOTIVE MANUALLY

On manually controlled locomotives, there are three main controls, all of

which are housed in the cab.

1) The gas regulator, which should be used to control steam generation as

described earlier.

2) The reversing lever. This is in the left-hand side of the cab and is

moved fully forward for running in a forward direction and fully back to

run in the reverse direction. It should be parked in the centre (mid gear)

when the locomotive is stationary for any length of time. When in mid

gear position, the valve gear is effectively in neutral and the engine will

not move under steam power.

3) The steam regulator. This is the main steam control valve and regulates

the speed at which the engine will run. The regulator handle is situated in

the right hand cab doorway and is moved anti-clockwise to open and

clockwise to close.

Using the reversing lever, select the desired direction of travel and open

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