TCS M1 Decoder Installation for HO-Scale Hornby J52 0-6-0. It was performed by Bob Dunstone of Southland, New Zealand


Important Soldering Tip:
Please do not use any flux either liquid or paste on the mother board. It will damage it. Use only Rosin core solder approved for electronics use.
We recommend to use only Kester "44" rosin core, SN63PB37, .015" diameter, part number 24-6337-0007.
This can be ordered from Techni-Tool under Techni-Tool part number 488SO157

http://www.techni-tool.com

The Hornby J52 Chassis is held by the two coupling mounting screws and a clip at the rear of the bunker.

Remove the screws, press the clip in and down, continue the movement downwards until the front supports disengage

With the chassis free proceed to remove the suppressors and the motor leads.

Shorten and heat shrink the white, blue and yellow decoder leads to prevent shorts.

The decoder can be positioned as shown or laid flat on the same section. I found the clearance between the leads and the rear of the smoke box door of the loco was minimal when laid flat and could prevent the chassis from sitting back in position.

Once in position dress the leads of the decoder and carefully solder into position.

 

This view shows the clips which hold the front of the chassis into the body. There is not a lot of room. It is important with this loco that the chassis fits correctly. I.e. no additional force required to refit the rear clip.


Other solder tips: When stripping wire, only strip a tiny little bit of the insulation. Strip no more then a 1/64 of an inch. When the wire gets tinned with solder the insulation will shrink back more. Try to not expose any more wire then half the length of the solder pad at most. In no case should solder or exposed wire wire ever be outside the boundary of the the solder pad you are attaching a wire to.
Click here for important information on properly Stripping and Tinning wire

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