![]() ![]() They also have a lot of grey market dozers out there that the US dealers do not have the parts for. Komatsu makes some great equipment, but they are high on their prices for parts. Deere is like Case and after awhile, stop carrying parts on some of their older models. Luckily the parts guys at New Holland told me where they get their pumps rebuilt and I was able to get it done for under $3,000Ĭat is famous for having parts for everything they make. They do not sell any parts for it, you have to buy the entire unit. When one of my hydraulic pumps stopped working, they wanted $25,000 for a replacement. They also have a terrible policy of only supply entire units to fix a small broken part. I've had to contact salvage yards for mine on several occasions and pay ridiculous amounts for what I got. They are more for the residential pad builder getting a lot ready for a house in some neighborhood.Ĭase has been rather poor at maintaining parts. ![]() The smaller ones, like the Komatsu, wont be very good at getting much done. I would think something like the D5 in the low 100 hp range is going to give you the best of both worlds. To maintain it, smaller is better because you have more control for finish work. To build your track, I would think you would want as much HP as you could afford. Took him forever, and the piles he created are still there. My neighbor had a guy with a D4 clear his fence line and that was also too small for what he was doing. ![]() The 450 was just too small to clear the land or dig into the dirt. HP and weight make a huge difference when trying to move material, or break through the hard crust of the ground in summer. They are night and day different in size from each other, but I learned a few things from each of them. Do the No Load Test again to check for improvement in the operation of the starter.I have a Case 1550 dozer and before that I rented a Deere 450G dozer. It is difficult to find a short circuit in a field coil. High armature shaft speed and high current draw are indications of a short circuit in the field coil. Low armature shaft speed and low current draw are indications of:Ħ. Check for high insulation between the commutator bars, broken brush springs, or worn brushes.ĥ. Brushes not making good contact with the commutator bars. Use the instructions included with the armature tester.Ĭ. Use an armature tester to test the armature. Disassemble the starter and check for burned commutator bars. Disassemble the starter and inspect the field coil connections.ī. If the armature does not rotate and the current draw is zero, possible causes are: A. Inspect the insulators for the field terminal.ī. Field terminal making contact with the field frame. If the armature does not rotate and the current draw is high, possible causes are: A. Use the instructions included with the armature tester.Į. Use an armature tester to test the armat u re. Loose pole shoes (pole shoes make contact with the armature).ĭisassemble the starter. Possible causes of too much friction are: A. Low armature shaft speed and high current draw are indications of too much friction. If the current draw and the armature shaft speed are within the ranges under Specifications, the starter is good.Ģ. Manual Extract Understanding No Load Test Resultsġ. Description Case 550H Crawler Dozer ManualĬase 550H Dozer Service Manual – 669 Pages Manual Table of Content: ![]()
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