Stellan,
I was just looking back through this thread at the picture of a radar controlled Mk 111 mounting on Mk 1 platform. The loader is the only one on board. The writing painted on to the gun shield is the list of lubricants and their colour code. Each grease nipple or filling plug would have a coloured ring painted around it to denote the lubricant to be applied.
The Mk3 platform was the Mk2 without the rope-operated hydraulic brakes but instead had front wheel mechanical overrun brakes, cable operated. This simplified removing the axles as the connection to the platform was now removed.It also simplified maintenance and repair. The brakes were automatic now, so none of the crew needed to sit at the back of the tractor to apply the brakes when necessary.
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George Cross Island
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