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  1. T

    623B Hydraulic Issues

    Got the hydraulics going, floor and ejector working great on the one machine now. Replacing the relief valve in the scraper control valve done the trick. Hoses were all connected correctly that I posted about. The other scraper the floor and ejector had been working ok but but still not as it...
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    623B Hydraulic Issues

    Note on picture one, hose #1 goes to tank via the block ov
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    623B Hydraulic Issues

    Hopefully these pictures can let you see what I got.
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    623B Hydraulic Issues

    Trying to figure out if my pilot hoses are connected correctly on the scraper control valve. There are 3 lines coming off the scraper control valve, 2 on the top at rear of valve and one off the side at the rear. I can't tell for sure by looking at the colored pictures Mark250 posted but looking...
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    623B Hydraulic Issues

    Thanks for the idea of throwing a block under the bit, never thought about doing it that way, had considered driving the front tire up on a block. Never crossed my mind to do what you say.
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    623B Hydraulic Issues

    If we find rotation is wrong does this mean get a different cartridge with correct rotation or is this something you can change?
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    623B Hydraulic Issues

    The machine we changed the pump on isn't in the shop yet but will check the rotation when we bring it in. I did find last night that the spool for the elevator wasn't moving as far as it is suppose to on the '74 model machine. The lever right behind the cushion neck control, never could figure...
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    623B Hydraulic Issues

    We bought the pump cartridges from a hydraulic pump shop, never thought about the rotation. We gave them the numbers off the pump and they new what we needed and sent them over. Guess we need to check this. Operation of everything stayed pretty much the same after putting new cartridges in.
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    623B Hydraulic Issues

    Hoses do not vibrate at all. Not opened up the motor yet to look at that, trying to look at everything leading up to that and see if we find anything wrong. Oil temps getting to high seems to be a big factor. Everything operates pretty much as it should till oil starts getting over 160 degrees...
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    623B Hydraulic Issues

    Thanks for the info d9gdon, I have printed your info off and going to study it. The air shift you speak of does work as far as changing the way the torque converter works and changing speed of machine. Can also tell a difference in how the hydraulics perform so I am assuming it is working...
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    623B Hydraulic Issues

    Been trying to get signed up on the board for a bit with out success but finally got it accomplished today! We are building a 20 acre lake ourselves and bought a couple 623B's and a 65D Challenger with an 18 yard CEPCO pan to move dirt with. Had a multitude of hyd hose issues on the 623's at the...
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