BARGAIN BASKET Dapol Class 122 M55003 BR Blue DCC FITTED (4D-015-010D)

This is an older-stock NEW item with the well-known driveshaft issue...

Otherwise, As New!
DCC FITTED
In full factory packaging with accessories/detail parts

Grab yourself a BARGAIN!

All items in the 'Bargain Basket' are sold as seen; please check the photographs thoroughly before purchasing. No warranty implied or given, no returns accepted; no refunds given.

Driveshaft Issue AI Overview:
The primary issue with Dapol diesel railcars (such as the Class 121 and Class 122) involves the plastic universal joints or "knuckles" slipping on the smooth metal driveshafts, causing one or both bogies to lose power or fail to move.

The Problem:
• Slipping Knuckles: Dapol uses a smooth metal driveshaft paired with plastic end caps/knuckles. Over time, grease or smooth tolerances allow the plastic ends to spin freely on the metal shaft rather than transferring rotation to the bogie.
• Split Butterflies: In some cases, the plastic joint components (sometimes referred to as butterflies) can split or disconnect.

How to Fix It:
1. Access the Chassis: Dismantle the body shell to reach the internal motor and bogie driveshafts.
2. Loosen the Motor: Partially unscrew the motor mount to give yourself extra wiggle room to easily lift the driveshafts out.
3. Clean and Burr: Remove the driveshafts, clean off any lubricating grease, and lightly roughen (burr) the metal shaft surface with a file or blade so adhesive has something to grip.
4. Re-glue: Apply a small amount of superglue (cyanoacrylate) to re-secure the plastic knuckle/drive head firmly onto the metal shaft ends.
5. Spares: If the parts are cracked or missing, replacement detail and driveshaft packs (such as the 4D-011-DDP or gauge-specific spares) can be ordered directly from Dapol or specialist suppliers like Peters Spares.
Users on RMweb and RailUK Forums note that lightly burring the metal shaft and gluing the plastic knuckle resolves the loss-of-drive issue.