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    CASE 850 - Transmission Control Valve/Braking/Steering issues

    Every1 was right. The spools are disengaging with brakes. It is the brakes that are dysfunctional. I found this out the dangerous way :eek: as I was on a slope, the machine got a bit out of control, so I hit 1 of the 2 brake pedals. That track sped up (instead of stopping) while the other track...
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    CASE 850 - Transmission Control Valve/Braking/Steering issues

    It's true that they are dry brakes & it never occurred to me that they might be binding up - making it harder to use. For some odd reason 1 of the former owners welded the brake actuating shaft (30) to the brake lever (34) ..so we may not be able to disassemble it, or possibly grind it apart...
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    CASE 850 - Transmission Control Valve/Braking/Steering issues

    that is exactly what we are having to contend with Dickjr :cool: the brake-spools (part #10 (above)) disengages the drive train on this 1974 Case 850 .....and it does take a tremendous amount of leg power to stop the track. i just thought something was malfunctioning to make it that hard to...
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    CASE 850 - Transmission Control Valve/Braking/Steering issues

    This uses high-low levers connected to the TCV and those various spool positions (#4) sends hydraulic fluid through various lines, which pressurizes clutches in its transmission case. when the brakes are pushed, the 2 lower spools (#10) cut-off all fluid to the trans. thereby neutralizing the...
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    CASE 850 - Transmission Control Valve/Braking/Steering issues

    Hey folks, This '74 Case 850 is almost impossible to steer using the brake pedals. It does somewhat ok on an upgrade, it becomes harder to brake on level ground, but when traveling in reverse on a downgrade it takes all my might to disengage the tracks (thus no turning or braking) ability...
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    CASE 850 - Transmission Control Valve/Braking/Steering issues

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    CASE 850 - Transmission Control Valve/Braking/Steering issues

    Thanks for replying alrman, I had problems getting the photo to show too & not sure what went wrong there. That photo is the photo I tried to upload, with (#10) circled in red. Part (#10) is referred to as a "brake valve piston" & we put new quad-seals (#22) on them. We inspected it for freedom...
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    CASE 850 - Transmission Control Valve/Braking/Steering issues

    Hey folks, This '74 Case 850 is almost impossible to steer using the brake pedals. It does somewhat ok on an upgrade, it be comes much harder to brake on level ground, but on a downgrade it takes all my might to disengage the tracks (thus no turning or braking) ability. :eek: The following...
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    Calling all diesel mechanics! CASE 850 momentary smoking Perkins 6.354

    the Perkins overhaul manual calls for only 12 torque lbs for the fuel injectors. that doesn't seem to be nearly enough. can verify that fuel injectors need only 12foot lbs, or did the manual make a misprint? keep in mind that the engines compression is about 400psi. I'm nearly done with this...
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    Calling all diesel mechanics! CASE 850 momentary smoking Perkins 6.354

    I was able to make it out today and get some decent photos. I have no idea why any1 would down-grade. My only guess is maybe the original engine block cracked & swapped it. Anyways, here goes the motor... This is embossed on the head. This shows where the CASE motor should be mounted vs...
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    Calling all diesel mechanics! CASE 850 momentary smoking Perkins 6.354

    I would like to see pictures of the engine close up if you can post them, Mel I was able to make it out today and get some decent photos. I have no idea why any1 would down-grade. My only guess is maybe the original engine block cracked & swapped it. Anyways, here goes the motor...
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    Case 580K wobbly reverser lever, online parts source?

    here goes some links I've gone to for CASE online parts... CASE direct http://www.casece.com/wps/portal/casece/LandingPage this is a more affordable site(s)... http://brokentractor.com/case-dozer.htm http://findtractorparts.com/ .....and you can also find some good deals on this...
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    No drive on JCB

    I had this VERY same problem with my JCB Sitemaster. The problem was in the screen element. it was so full of gunk & metal shavings that it kept the oil from entering the oil pan. I opened the drain plug & nothing came out. i went to change the filter & oil started glugging out from near the top...
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    Calling all diesel mechanics! CASE 850 momentary smoking Perkins 6.354

    This Perkins engine will run fine, till out of nowhere it'll start misfiring & sputtering. It looses nearly all horsepower & backfires through the exhaust. White & Black smoke billows out. Here is a video clip on my facebook to demonstrate it happening...
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    CASE 850 torque converter & driveshaft quit spinning

    ^^^^^ driver side ^^^^^ ^^^^^ passengers side ^^^^^ The engine in my service manual looks way different than the engine in these 2 photos. I'm just taking a wild guess (by visual) that this looks more like a Perkins 6.354 engine ...that a previous owner dropped in. Possibly to save...
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    CASE 850 torque converter & driveshaft quit spinning

    Smoking Engine ...Perkins 6.354? There is also momentarily engine troubles we been having over the yrs & while we have the motor out to repair, I'd like to fix this too. This Perkins engine will run fine, till out of nowhere it'll start misfiring & sputtering. It looses nearly all horsepower &...
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    CASE 850 torque converter & driveshaft quit spinning

    Has any1 heard of transmission fluid pumping out of the fill tube? I wonder if having 2 gallons of 20W oil is over filling it. The service manual says that can happen if it's overfilled, but you'd think that using less than 2-gal seem like it would not be enough. Either it's suppose to run on...
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    CASE 850 torque converter & driveshaft quit spinning

    well, the mystery is solved. i opened up the inspection plate on the flywheel housing & seen the shims damaged. :( the flywheel spun, but the converter slipped-grabbed-slipped. so it looks like a major task on my hands. on a side note, the gear on the charge pump wiggles a lot and when...
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    CASE 850 torque converter & driveshaft quit spinning

    @ sheepfoot. I checked those pressure fittings today, but wasn't sure what to check for. The springs & pistons looked to be in good shape. They was a bugger trying to screw back together. What was i suppose to look for? ...besides a pressure reading. @ Tinkerer. Nothing about the torque...
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    CASE 850 torque converter & driveshaft quit spinning

    Thanks bunches for the info & speedy reply Sheepfoot. I'll surely give those ideas a try & hope for the best. I surely hope those items are not under tremendous force & that I'll be able to put back together. forcing spring-loaded things back together can make the 4-letter words rip :eek:
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