TRSW LTD Traction & Rolling Stock Works Ltd

Here's an FYI post which I thought I'd share.

It's mainly regarding Bachmann class 37's & 47's, which are the most common class of loco that I see in works for this type of repair. This is likely to be because they are the most ubiquitous of the loco classes.

This type of repair is starting to increase, as I suppose locos become older and have become subject to more work on layouts.

This issue is not exclusive to Bachmann class 37's & 47's, by any means, as I also see many other classes of Bachmann loco's which share the same type of worm drive assembly. Heljan loco's are worse, as they have had a production issue over many years, resulting in fractured drive shaft retaining cups.

The 2 photo's show the worm gear drive which is at the top of the bogie tower. As you can see from the 1st photo, the drive shaft retaining cup has moved up its shaft right up to the inner worm gear, which allows the drive shaft to become detached from the retaining cup, as there is now a longer distance between the motor and the retaining cup, or it will allow the retaining cup to spin on the worm gear shaft and not fully engage, which reduces reactive effort.

The solution....

Once you've removed the bodies and bogies, and then the worm gear assembly from its position at the top of the bogie tower, it's just a case of slipping the retaining cup back to it's normal position as in photo 2. To ensure that there is no repeat of this issue, I remove the cup fully from its shaft and check the cup for any signs of fractures, which is very common in Heljan loco's. If no fractures are found then I run a very small amount of superglue around the serrated end of the shaft, and push the cup back on to the shaft, making very certain that no glue seeps down the shaft and onto the inner worm drive bearing, which would not be a good outcome.

Once I'm happy with the positioning, I then drop a tiny amount of glue inside the centre of the cup, ensuring no glue is deposited on the cup sides. Once left to dry for 10 minutes I rotate the inner worm drive bearing to ensure it moves freely, and then reassemble.m, making sure you clean and debris from the worm drive, as I did after the photo's were taken, and while you've got it all sort give the drive and gears some lubricant if necessary.

As stated above, a noticeable reduction in tractive effort with locos with this type of worm drive assembly is the most obvious symptom of this issue, as is a drive shaft which pops out of the motor or bogie retainers.

I hope this helps if you are having this issue, or at the very least it'll arm you with what to look out for to diagnose this issue.

SOLD SOLD SOLD SOLD

Due to a cancellation this loco is being relisted.

Cavalex Class 56 077 BR Original Railfreight Livery OO Gauge NEW

DCC Ready 21 Pin

Originally purchased to rework, but workshop time will not permit, so instead of just sitting in my stock cupboard it's being made available.

Never been taken out of its box.

Price is plus postage Royal Mail Special Delivery Before 13:00 £15.00.

Any questions please ask.

ALL SOLD ALL SOLD ALL SOLD

CAVALEX CLASS 56'S.

All NEW. Never taken out of their boxes. Purchased as a precursor to renumbering/naming, but available time to do so has not permitted, so instead of just sitting in my stock cupboard they are now available for purchase.

Prices are plus postage of £15.00 for Royal Mail Special Delivery Before 13:00

DCC Ready
56 008 BR Blue SOLD
56 018 EWS SOLD
56 019 Railfreight Red Stripe SOLD
56 019 Railfreight Red Stripe SOLD
56 023 Railfreight Coal SOLD
56 055 LoadHaul SOLD
56 077 Original Railfreight SOLD
56 093 BR Large Logo Blue SOLD

DCC Sound Fitted
56 008 BR Blue SOLD
56 077 Original Railfreight SOLD

Any questions please ask.

FOR SALE FOR SALE FOR SALE

This is one of two O gauge locos for sale by TRSW on behalf of a customer.

This is Heljan's Type 4 (class 47) 1662 Isambard Kingdom Brunel in BR Blue FYE.

This is a Limited Edition of 150 models produced within "The Engineers" series by Hattons.

This is the early V1 (2007) chassis which has had a replacement gear set for each bogie carried out, due to the well known split gear issue with these loco's.

DCC Ready (XL Screw)

Era 6

No detail pack included or any buffer beam detail fitted, except the screw link coupling.

Thie loco has seen very limited use due to the split gear issue, which has now been resolved. It will need to be run in to bed in the new set of gears in each bogie.

Not in its original box, but in a box for another class 47 4881.

Any questions please ask.

£475.00

SOLD SOLD SOLD SOLD

TRSW is selling two O gauge locos on behalf of a customer.

The first one is a class 47 in Network SouthEast.

This is a V3 (2021) chassis release.

Unnumbered.

DCC Ready (XL Screw)

As new, only taken out of the box to photograph.

Original box.

Full compliment of extra detail in the pack.

£525.00 + £15.00 postage (Special Delivery)

Any questions please ask.

SOLD SOLD SOLD SOLD

HELJAN O Gauge/7mm Class 37 418 Pectinidae. DCC Sound Fitted. BR Railfreight Triple Grey Petroleum Livery. Weathered. £ 699.00

Heljan product code: 3753

DCC Sound fitted with LokSound XL loaded with Legomanbiffo sound files. Function list is included.

Fitted with period painted drivers at both ends.

Etched nameplates fitted.

Weathered to a typical working state.

This loco has only done about an hour's work, which includes running in. Comes in its original box and on the wooden plynth.

Loco manual included.

Postage is Royal Mail Special Delivery Before 13:00 £ 20.00 (5kg)

Any questions please ask.

SOLD SOLD SOLD SOLD

Heljan Class 104 3 Car DMU BR Blue, Renumbered, Detailed & Weathered. DCC Ready NEW £ 525.00

Original product code. : 1453 M50436 + M59242 + M50488

Renumbered to M50420 + M9132 + M50424 using Railtec transfers.

Destination boards Man. Victoria/Southport

Driver fitted in both cab ends.

Full buffer beam detail is fitted at both cab ends, which does mean that NEM couplings are obsolete. To fit the NEM couplings to the cab ends, some of the buffer beam detail will need to be removed.

Weathered to a typical working state.

The guards compartment has had the windows "blacked out", so that you cannot see the electrical equipment through the windows.

DCC Ready 21 Pin. I can supply and fit an ESU LokPilot or LokSound decoder at an extra cost.

I can supply and fit passengers at extra cost.

This was purchased by TRSW solely to renumber and weather and has only been run to clean all weathering overspray from the wheels, so is sold as NEW.

Postage by Royal Mail Special Delivery Before 13:00 is included in price, so will be fully insured for any loss and/or damage.

Any questions please ask.