821C won't move - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 11 (permalink) Old 12-13-2009, 05:52 PM Thread Starter
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821C won't move

We have a Case 821C front end loader and it quit moving the other day. It has about 5000 total hours on it. I had changed the trans oil and filter with 10w-30 like it calls for over the summer. It had about 500 hours on that and the trans filter light started turning on so I changed the oil and replaced the filter again. About a week later, you would be driving and it would just stop but if you'd let it set awhile you'd be able to move it again. I checked and it has a bunch of codes for clutches slipping, etc. I warmed it up and tried to go through the recalibration process but it wouldn't work for some reason. We were looking at sending it to a shop later this week but I'm sure that'll get expensive. If anyone knows anything else I could check out before then I'd appreciate it.

'94 F250xlt ext. cab. ZF5-speed 4x4. EBPV delete. DPP downpipe. Tymar intake. Tymar coolant filter. LF9691 primary filter. Electric fans. 10k mod. 1.0 turbo housing. Boost blanket. Over-axle exhaust eliminated. Electric fuel pressure gauge. BDP modded IDM. Heim joint clutch linkage. Adrenaline HPOP. LUK SMFW. DIY Elec. Fuel. FS1282, FF5230 fuel filters.
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post #2 of 11 (permalink) Old 12-13-2009, 06:36 PM
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Is there a pressure relief valve stuck somewhere? Is there a suction screen that needs to be cleaned?

Does the oil require the HTO additive like the Case skidloaders do?

Have you checked the pressures all around? Sounds like they are low. Pump need replaced?

"Some people are educated beyond their intelligence."

'93 W350 CC, LE, 5spd, HTT modded H1C, 4" DE

Sold- '99 3500 Q/C, SO CTD, 4x4, 5spd.

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post #3 of 11 (permalink) Old 12-13-2009, 10:17 PM Thread Starter
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It uses 10w-30 engine oil in the trans. I don't believe that it calls for any other additives. I have no idea where to begin checking pressures or anything like that. I talked to a service guy at a Case dealership and I think he kinda wants the business so, I mean, he helped some but he said the same thing about checking pressures but didn't really want to say where to check them or what they should be or anything like that. I'm kinda worried that the clutches might be getting worn out as trans filter was getting plugged and we had all those codes for clutch slippage, etc.

'94 F250xlt ext. cab. ZF5-speed 4x4. EBPV delete. DPP downpipe. Tymar intake. Tymar coolant filter. LF9691 primary filter. Electric fans. 10k mod. 1.0 turbo housing. Boost blanket. Over-axle exhaust eliminated. Electric fuel pressure gauge. BDP modded IDM. Heim joint clutch linkage. Adrenaline HPOP. LUK SMFW. DIY Elec. Fuel. FS1282, FF5230 fuel filters.
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post #4 of 11 (permalink) Old 12-15-2009, 04:23 AM
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I can get complicated trying to explain what pressures and where. Especially when one place might only need to be 500psi vs another at 2500. Plus, sometimes you'll need to check at idle vs WOT.

"Some people are educated beyond their intelligence."

'93 W350 CC, LE, 5spd, HTT modded H1C, 4" DE

Sold- '99 3500 Q/C, SO CTD, 4x4, 5spd.

Traded off- '97 3500 C/C, 4x4, CTD

'92 W250, LE, CC, CTD w/ tweaked pump (SOLD)


"Obama = Hoax and Chains"

If Obama is the answer, it must have been a stupid question.
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post #5 of 11 (permalink) Old 12-15-2009, 11:25 PM Thread Starter
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My dad decided we'd try and figure it out for ourselves. He ordered a service manual for it so we should be able to figure it out from that. I'll try and keep posted when we figure it out.

'94 F250xlt ext. cab. ZF5-speed 4x4. EBPV delete. DPP downpipe. Tymar intake. Tymar coolant filter. LF9691 primary filter. Electric fans. 10k mod. 1.0 turbo housing. Boost blanket. Over-axle exhaust eliminated. Electric fuel pressure gauge. BDP modded IDM. Heim joint clutch linkage. Adrenaline HPOP. LUK SMFW. DIY Elec. Fuel. FS1282, FF5230 fuel filters.
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post #6 of 11 (permalink) Old 12-16-2009, 04:24 AM
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Good luck.

I'd check the pressures before tearing anything else apart. If the pressure is low, then you need to find out why.

"Some people are educated beyond their intelligence."

'93 W350 CC, LE, 5spd, HTT modded H1C, 4" DE

Sold- '99 3500 Q/C, SO CTD, 4x4, 5spd.

Traded off- '97 3500 C/C, 4x4, CTD

'92 W250, LE, CC, CTD w/ tweaked pump (SOLD)


"Obama = Hoax and Chains"

If Obama is the answer, it must have been a stupid question.
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post #7 of 11 (permalink) Old 12-16-2009, 09:51 PM Thread Starter
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Hopefully the service manual will give good troubleshooting trees that say "if this is low but this is fine then replace this". I'll probably spend some time just looking through the manual and to know exactly what it says before I tear into anything too heavily.

'94 F250xlt ext. cab. ZF5-speed 4x4. EBPV delete. DPP downpipe. Tymar intake. Tymar coolant filter. LF9691 primary filter. Electric fans. 10k mod. 1.0 turbo housing. Boost blanket. Over-axle exhaust eliminated. Electric fuel pressure gauge. BDP modded IDM. Heim joint clutch linkage. Adrenaline HPOP. LUK SMFW. DIY Elec. Fuel. FS1282, FF5230 fuel filters.
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post #8 of 11 (permalink) Old 12-30-2009, 03:56 AM Thread Starter
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Found that we have no trans main pressure. I talked to a guy at a zf trans shop I found online and he said it's common for the charge pumps to go out on the case applications. Then I mentioned how the oil was very burnt smelling and he said even if a charge pump were to fix it, it probably has some other serious problems so we're planning to pull the engine, the cab and then the trans and send it out to get repaired.

'94 F250xlt ext. cab. ZF5-speed 4x4. EBPV delete. DPP downpipe. Tymar intake. Tymar coolant filter. LF9691 primary filter. Electric fans. 10k mod. 1.0 turbo housing. Boost blanket. Over-axle exhaust eliminated. Electric fuel pressure gauge. BDP modded IDM. Heim joint clutch linkage. Adrenaline HPOP. LUK SMFW. DIY Elec. Fuel. FS1282, FF5230 fuel filters.
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post #9 of 11 (permalink) Old 02-03-2010, 02:31 AM Thread Starter
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We got the trans pulled out and sent it to this ZF shop way over in Washington state. I had talked to one of the mechanics there about the problems we were having and he was very nice and helpful. They were willing to pay the freight charges so that was nice too. Turns out the pressure tube that goes from the charge pump and supplies oil to the torque converter and valve body cracked losing all pressure. Everything got pretty burned up inside so they are going to replace all the sensors and clutches along with the tube.

'94 F250xlt ext. cab. ZF5-speed 4x4. EBPV delete. DPP downpipe. Tymar intake. Tymar coolant filter. LF9691 primary filter. Electric fans. 10k mod. 1.0 turbo housing. Boost blanket. Over-axle exhaust eliminated. Electric fuel pressure gauge. BDP modded IDM. Heim joint clutch linkage. Adrenaline HPOP. LUK SMFW. DIY Elec. Fuel. FS1282, FF5230 fuel filters.
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post #10 of 11 (permalink) Old 02-10-2010, 07:24 AM
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id sugest getting all fluids checjed out before sending it all out for inspection, because that will be expensive. a chance on an oil analysis is less money and a possible less money fix

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