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Mildred
Owners Handbook
For the Mildred Locomotive

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Table of Contents
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Summary of Contents for roundhouse Mildred

  • Page 1 Mildred Owners Handbook For the Mildred Locomotive...
  • Page 2: Operating Instructions

    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...
  • Page 3: Table Of Contents

    Mildred Instruction Booklet CONTENTS Tool kit. Page 4 Running in. Page 4 Access to controls. Page 4 Identification of parts of the locomotive. Page 5 Preparations for operation. 1. Filling the Gas Tank. Page 6 2. Filling the Boiler. Page 7 3.
  • Page 4: Tool Kit

    TOOL KIT The following items are included with your locomotive. One 60ml bottle of special steam oil for use in the 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.
  • Page 5: Identification Of Parts Of The Locomotive

    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 ) Safety valve. 6 ) Gas regulator. 7 ) Gas filler valve.
  • Page 6: Filling The Gas Tank

    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 ‘Gas System’...
  • Page 7: Filling The Boiler

    2) FILLING THE BOILER A syringe and plastic pipe are supplied for filling of the boiler. The boiler is filled with water through the safety valve bush, housed inside the brass dome on top of the boiler. The brass dome is a substantial and heavy item, being turned from solid brass.
  • Page 8: Lighting The Burner

    loco gets hot – leading to dry running. We recommend the use of a 20-50 motor oil for external lubrication. 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.
  • Page 9: Running The Locomotive

    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.
  • Page 10: Driving Manually

    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 a little depending on gas valve setting.
  • Page 11: Driving By Radio Control

    until this clears. Once the parts have warmed up, the engine will move off steadily and its speed can be controlled with the regulator. Subsequent starts will be quite smooth once the cylinders etc. have reached their normal operating temperature. To reverse the locomotive, close the regulator to bring it to a halt, move the reversing lever over and open the regulator again.
  • Page 12: Storage Between Operating Sessions

    emergency stop is required, simply release the reversing lever, which will spring back into mid gear and halt the train. Then close the regulator. Always ensure that the regulator is closed before switching off the transmitter. Always switch off the receiver and transmitter when not in use to preserve battery life.
  • Page 13: Altering Wheel Gauge

    year. ALTERING WHEEL GAUGE The wheels are set at the factory for the specified gauge however, for those who wish to alter this to run on other people’s railways or if you change the gauge of your track, they are easily reset with the aid of the back to back gauge supplied in the toolkit.
  • Page 14: Regulator

    REGULATOR NOT SHUTTING (R/C models) The steam regulator seating and seal can, after a period of time become worn or compressed so that when the lever on the radio control is fully closed, the locomotive still moves. To overcome this, a trimmer is fitted to the transmitter.
  • Page 15 extinguish the flame until the burner reaches normal operating temperature. The tiny jet in these units can become blocked by small particles of dirt making the burner difficult to light, burn weakly at normal operating temperatures*, burn in the smokebox or fail completely. If any of these should happen, clean out the jet as follows.
  • Page 16 tank is empty, and there are no naked lights nearby. To lubricate it, remove the knurled knob which is retained by a M3 socket grub screw (M 1.5 AF Allen key required) in the side. This grub screw is accessed by first removing the brass lever which is screwed into the same hole.
  • Page 17: Boiler And Gas Tank Certificate, Pages 17

    ROUNDHOU ENGINEER ING CO. LTD. Units 6-9 Model: MILDRED Seri Model: Type 1 boiler Serial No.: Test date: Ves- Serial No.: Model: Type ‘A’ gas tank Test date: sel for Group 1 gas- ses and associ- ated pipe Signed Dated ………………..
  • Page 18 Please refer to the ‘owner’s handbook’ for your particular model of locomotive, for details on correct use of these pressure vessels. Pressure vessel care and maintenance Gas tank The gas tank is used for the storage of LPG (liquefied petroleum gas) in the form of butane, iso-butane or as set out in the ‘owners handbook’.
  • Page 19 Gas Burner 1). Superheater Pipe. 2). Lubricator Pipe. 3). Gas Jet Holder retaining screw. 4). Gas Jet. 5). Gas Jet Holder. 6). Gas Pipe. 7). Gas Burner fixing screw. 8). Air Inlet Holes.
  • Page 20: Service And Parts

    Your dealer is; ROUNDHOUSE If your dealer is unable to help, you may contact the Factory directly: ROUNDHOUSE ENGINEERING CO. LTD. Units 6-10 Churchill Business Park. Churchill Road. Wheatley. Doncaster. DN1 2TF. England Telephone 01302 328035 Fax 01302 761312 e-email support@roundhouse-eng.com...

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