Gearbox and Transmission
|The new drive chain
|The new chain in place, before adjusting the tension
It was noticed that the gearbox input shaft on Queen Anne had some side play, so the top gearbox cover was removed (it weighs 3 hundredweight). The input shaft runs in the upper cover supported by a ball bearing and a caged roller bearing. The ball bearing was not the original, and at some time in the past the shaft had been rotating inside the bearing. The roller bearing also seemed a bit noisy, so both were replaced with new British-made bearings. The worn shaft was built up with weld and machined back to the correct size. An extra rubber shaft seal was also fitted to prevent dirt entering the ball bearing.
The gearbox was also given a good clean out. Because it uses friction clutches, a lot of grey sludge is formed as the friction linings wear. Also the flange that joins the two parts of the casing had been damaged in the past and a corner bolt-hole had broken. A crude bracket held the broken part in place. The broken pieces were welded back using an arc welder and pure Nickel rods.
|General view of the gearbox
|The original worn roller
|The new Cam Roller
The Cab Floor
|Some of the floor panels and the fuel tank after painting
|View showing the 4 vertical pillars towards the back
|The outer floor panel is screwed to the 4 pillars
|A view of the engine