This tractor uses the VW clutch in the transaxle. It also uses the VW brake shoes as separate clutches, one for each track by pushing the steering levels forward. Pulling back on the steering levers disengages the drum clutches and applies the band brakes that contact the outside diameter of the brake drums. The transaxle is from a pre-1961 VW bus given it is a split case transaxle and rotates in the proper direction even though the engine and transaxle have been flipped around from the original VW bus arrangement. The VW bus reduction gear boxes have been removed so the axle rotation is correct to provide 4 forward gears and one reverse. In order to reduce the track speed the differential is approximately 4 to1. This is reduces again about 4 to 1 by selecting 1st gear. In addition to the transaxle and gear box reduction there is a chain box for each track that utilize an additional double reduction of approximately 8 to 1. This should provide a pretty good crawl speed. The engine has a bad cylinder so I ordered a set of barrels and pistons which I will be installing soon so I can give this dozer a try. It is a 1600 cc which I'm told should be about 50hp so power should be sufficient for this small dozer.
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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