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supermechanic

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    Eastern Pennsylvania
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    Fabricator, heavy equipment mechanic, millwright, welder

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    supermechanic18360@yahoo.com

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  1. torque reaction is opposite of engine rotation
  2. the driver side is the side that lifts
  3. I see reference to hemlock a few times in the preceding posts, there must be two types of hemlock, the stuff in PA grows big, but is one of the quickest things to rot when water gets on it. Most of the hemlock on the east coast has been infested with a little woolly bug, it sucks the life from them. if they are not already dead, they will be soon. I wonder if enough black locust is available? that stuff lasts. My father made some posts from black locust in the 70's, they still hold up.
  4. Another thing, if the motor needs to freewheel in the non-energized position, you should use a motor spool.
  5. A motor with integrated relief valves will have spring loaded, shim adjustable cartridge vales on both the input and the output lines of the motor. this is called a crossover relief, and bolts to the back of the motor housing. Some motors that are designed to run in both directions may have a third line connected to the case of the motor. This is the drain line. It must be connected to the tank, it takes pressure off of the shaft seals. a further explanation of the motor spool function is the A port and the B port are combined in the neutral position. So if you tried to use a motor spool on a cylinder, there would be no load holding function with the control assembly in the neutral position.
  6. motor control spool has internal relief, which allows motor to have a 'soft' stop. If motor used with standard spool, case rupture can result due to momentum of driven load over rotating, causing motor to act as pump, pressure will spike, and the weakest thing in the system has to give. a standard spool can be used if back-to-back relief valves are plumbed into the motor lines, preferably right at the motor.
  7. What does the Bureau of Land Management have to do with tires?
  8. don't forget cooling. All of that extra fuel make heat. should the radiator be on the skimpy side as it is, upping the output will require increased cooling capacity as well. I am reminded of a piece I worked on a few years back, a forestry mower needed a new engine, old one was tired. found a low hour engine, did the swap. worked like gangbusters when the weather was around freezing. summer came along, tractor overheated. had radiator opened up, scrubbed out, re-installed it. still overheated. after a week of going around with this, I pulled the valve covers, and found the injectors on the replacement engine were a bit larger than what was in the original. swapped out the injectors, no more overheat.
  9. IH was one of a few manufacturers that built trucks for the us govt. All of the manufacturers build to the same plan. If it was made by Kaiser, it had a 6602. If it was made by Mack, it had a 6602. If it was made by Studebaker, it had a 6602. if it was made by Oshkosh, it had a 6602. And so on. Can you imagine the confusion if you were the manager of the government motor pool, and in your inventory were parts for a dozen different versions of the same vehicle? How about if you were the mechanic and you needed to 'borrow' a carburetor from a shot-up or otherwise damaged truck to repair another? How many hoods would you lift to find the same engine? Government issue is just that, all built to the same plan.
  10. https://www.tirerecappers.com/tires/farm-construction-tires/26575r16-retread-tri-rib-farm-tire/
  11. agree on the good price. top speed is too slow to be safe in todays traffic. gas motor gets about 3 miles to the gallon. a few big towing outfits around me got their start with these, as soon as they can get something more modern, they do. army wrecker then goes to the back lot, and sits. can't sell them, somebody will then be looking for a slice of your business.
  12. Seriously, don't ruin what works. reverse is designed to maneuver the dozer into position for the next push. pulling backwards kills the idlers, track adjusters, puts undue strain on the track chains and is avoidable.
  13. I had a bit of a deal getting them to track the excavators the correct way until I solved it by installing a small strobe on the dash, it is connected to the reverse alarm. Seams like pushing the sticks away from you to travel forward was not intuitive enough.
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