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My wife is nearing the end of pregnancy and remains in the government-defined more vulnerable group, so I regret that I am still unable to provide next day dispatch. This because I must continue to reduce the amount of contact that we have with public spaces.

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Please rest assured that orders will be shipped as soon as they can be, but it may take a few days longer than normal. As soon as I am able to return to a next day dispatch pattern, I will.

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Lima Ringfield Replacement CD Motor & Adaptor Kit (LA1/10MM/Co-Co)

(2 customer reviews)

£12.95

Out of stock

Description

A brand new OO Gauge Lima ringfield motor conversion kit, comprising:

    • a replacement 10mm thick 6Vdc high torque can motor,
    • computer-designed 3D-printed adaptor,
    • 2 x 8-tooth gears (one spare), and
    • a length of heat shrink tubing.

This kit requires no permanent adaptation to be made to the motor bogie and therefore the original ringfield (pancake) motor can be reinstalled at any time; the motor, adaptor and/or gear can be replaced with ease, if ever the need arises.

Read more about our ringfield adaptor kits here: www.strathpefferjunction.com/ringfieldadaptors

Compatibility

We have tested the adaptor in UK outline models marked with an asterisk below. Based on visual assessment, this adaptor should also work with all ringfield models listed. Very occasionally, light sanding may be required around the lugs to ensure clearance.

Class 31*
Class 37*
Class 40*
Class 47*
Class 50*
Class 52 (Westerns)*
Class 55 (Deltics)*
Class 57
Class 59
Class 60
Class 66
Class 92*
Class 201 (Irish Diesel)
King Class (Tender Drive)
Fowler 4F 0-6-0 (Tender Drive)

★ For our 12mm/Bo-Bo Lima adaptors, please click here.
★ For our Small Loco Lima adaptors (suitable for Class 08/09 shunters and GWR Prairie), please click here.

Disclaimer

We can accept no liability or responsibility for any damage or injury occurring from the installation and use of our motor replacement kits. Installation requires modifications and the use of tools, some of which have the potential to damage you and/or you models, as well as other components and equipment. Users must not commence work unless they are confident that they have the skills and experience necessary to complete it successfully, and install these kits and undertake work to their models at their own risk.

Additional information

Weight 24 g

Usage Advice

1.  Our replacement motors are high quality 6v DC motors designed for CD/DVD drives. The output from a DCC decoder or a DC controller can exceed their voltage rating depending on how hard hard the loco is being worked. Whilst our own tests (and those of many others before us) show that these motors are capable of handling voltages higher than their rating, in order to avoid motor burn-out, prolong motor life and achieve prototypical speeds, we recommend:

    • For DC/Analogue use, speeds are kept low manually via the controller and a diode* voltage dropper should be considered in order to reduce voltage going to the motor (as outlined in the instructions);
    • For DCC use, decoders should have their CV5 value reduced (if available) and, particularly where CV5 adjustment is not available, a diode* voltage dropper should be considered in order to reduce voltage going to the motor (as outlined in the instructions). Some new decoders enable the top voltage sent to the motor to be set via CV57 and, where available, this should be used. 

2.  With all CD-style motor conversions, it is good practice to: i) maintain very high speeds for relatively short periods only, ii) keep running on steep inclines to a minimum, iii)  avoid coupled up with excessively long rakes of coaches/wagons, and iv) where less robust 10mm motors are fitted, resist the temptation to fit additional weight to the loco.

3.  It is recommended that locomotives fitted with our 3D printed adaptor kits are not run for more than an hour continuously; this is to prevent the motor temperature from exceeding the glass transition temperature of the plastic.

4. We recommend that locomotives fitted with can-style CD motors are:

    • Not run without a DCC decoder as ‘Locomotive 0’ on a DCC model railway layout (this is will lead to over-heating and rapidly ruin the motor), and
    • Not placed on the tracks whilst a high frequency track cleaner (such as the Gaugemaster HF-1/HF-2)  is in operation. There have been some reports that the frequency can damage the motors, although it is not something that we have tested.

Instructions

The following instruction manuals are available for this product:

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Instructions for 10mm & 12mm Lima Ringfield Motor Upgrade Kits (LA1, LA2 & LA6) 442.11 KB 940 downloads

Step-by-step instructions for our LA1, LA2 & LA6 Lima ringfield motor upgrade...
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Lima Replacement Motor Kits Troubleshooting Guidance (OO/HO) 276.46 KB 261 downloads

We have prepared a troubleshooting guide to address some of the rare, but potential...
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Ringfield Motor Upgrade Kit Label 1.65 MB 284 downloads

Product label. ...
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Ringfield Motor Upgrade Kit Product Leaflet & Advice 4.60 MB 294 downloads

Product overview and usage advice. Last revised: 24 March 2020. ...

DCC Use

Our upgrade kits can work really well on a DCC layout, however we strongly recommend that a decoder with CV2/CV5/CV6 functionality is fitted; a decoder with CV57 (motor voltage control) is even better. The functions will enable the starting voltage, top and mid speeds of the motor to be fine tuned (or, in the case of CV57, the voltage to be set) and make prototypical speeds more achievable. In most cases, it will also negate the need for a diode voltage dropper to be installed, although as with most decoder installations, you may still have to spend some time fine tuning CV values to get best possible performance.

Most decoders now have CV2/5/6 functionality as standard, but not all, so it’s wise to check the product manual or specification before buying. CV57 functionality is not yet widespread. Please note that Hornby’s R8249 decoder and their TTS Sound range are examples of decoders that do not have any of these functions onboard. Whilst it is still technically possible to use such decoders with our upgrade kits, it is unlikely that you will be able to achieve the same fine tuned speed characterises that you can with other decoders.

Without the option to alter CVs 2/5/6, you must: a) use a diode voltage dropper to reduce voltage going to the motor, and b) it is likely that you will then have to disable Back EMF and alter acceleration/deceleration CVs to suit. With non-sapphire Hornby decoders, you may also have to switch to motor algorithm 2 and alter the associated P and I parameters, and if it’s a TTS sound decoder, you will also have to change the sound notch triggers to ensure that the sound matches the speed as close as possible.

Altering CVs is almost always a case of trial and error and will be influenced significantly by the locomotive type, length of rake, track layout (incl. the number of inclines) and your own preferences for running characteristics. We strongly advise you to back up your decoder’s CV settings before making changes and to change one CV at a time, then test; changing too many CVs at a time may confuse the overall picture.

Using Hornby’s TTS decoders as an example, we have found the following CV values to work reasonably well for Hornby’s Class 37 (Un-refurbished) TTS decoder. The decoder was installed in a Lima Class 37 upgraded with our LA5 motor kit and our DD3 diode voltage dropper kit:

Configuration Variable (CV) Value Configuration Variable (CV) Value
CV3 30 CV154 20
CV4 30 CV210 12
CV10 1 CV211 5
CV150 1 CV212 20
CV153 50 CV214 40
Note: Speeds steps should be set to 128 in order to provide fine low end control, however it is unlikely that you will ever wish increase speed steps beyond ~30 on the controller, otherwise the speed of the model will be far too fast. You will also have to learn to ‘drive’ the model and apply power carefully to get the train moving, backing off a little when the desired speed is achieved.

As is always the case with CVs, there are so many factors involved, you may well find that different TTS sound decoders, let alone different types of decoder, will required different CV settings and, as such, the values are offered simply as an example and may not suit your own scenario. Where diodes are used alongside a digital decoder, you will also have to learn to ‘drive’ the model and apply power carefully to get the train moving, backing off a little when the desired speed is achieved.

2 reviews for Lima Ringfield Replacement CD Motor & Adaptor Kit (LA1/10MM/Co-Co)

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  1. Liam Taylor-Warren (verified owner)

    Verified reviewVerified review - view originalExternal link

    Really speedy delivery and a cracking bit of kit. Really simple to install. It was so good to get my Lima locos back up and running again after spending weeks trying to clean the old Pancake motors and getting really poor running.

    6 out of 6 people found this helpful. Was this review helpful to you?
  2. Robert C. (verified owner)

    Verified reviewVerified review - view originalExternal link

    I saw a video about these adaptors last year and was keen to try one out when they became available. Having glued in a few CD motors in the past, I must say that these make the whole process an absolute doddle in comparison. The trickiest part is probably cutting the gear to size, and I’d happily pay a quid more for someone to have done it for me, but other than that minor point, I’m really happy with the product.

    3 out of 3 people found this helpful. Was this review helpful to you?

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