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How do you remove the OD?
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Ross,
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Does the special snap ring lock the rest of the OD into the planetary gear when it's bolted on? I'm having a difficult time visualizing how this thing goes together from the diagrams. I think my problem is because the diagrams are only drawn to show the parts for identification purposes, not for function. If it were mine I would probably have it apart by now (with the broken parts on order) but it's not so I'm taking my time. Rick S (TX) In a message dated 6/19/99 10:55:46 PM Central Daylight Time,
rc2ls@... writes: << I don't know about mix matching a D18 with a D20. It sounds good though. Looking at the book it appears that it would work. I remember now what made it difficult to get the shaft out. There is a bearing with an interference fit. Take everything off the shaft. I hope you have a good pair of snap ring pliers 'cause there is one stout snap ring on there. Once you get everything off put the spacer and nut back on and gently tap the shaft and bearing out. Tap on the spacer. I figure it's cheaper than anything else. Once you get that out then you can access the square snapring and washer behind the special nut that threads onto the output shaft of the transmission. I used an extension to drive the nut. >> |
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In a message dated 6/20/99 10:05:58 AM Central Daylight Time,
rc2ls@... writes: << Yes. The special lock nut screws on to the back of the transmission output shaft. This resides inside the planetary assembly in front of the OD shaft. Before you can get to it you will have to remove the special (square) snapring and washer. Did you get the OD shaft out? Give me some idea of which exploded parts diagram you are looking at. That might help with the terminology. >> Ross, I'm using the parts diagram in the Advance Adapters catalog. Did anyone ever publish a maintenance manual for these ODs? They must be very reliable because they seem to be seldom removed. The one in my truck has been there for 30 years. I understand it was removed once to replace the gaskets. It seems strange to have to disassemble this thing to take it off. I haven't tried anymore to take it apart. It's raining outside (In San Antonio?) and I've decided to wait for the owner to show up tomorrow night. I'd rather not completely disassemble this thing without him here. That way if something breaks I have someone to share the blame with. Rick S (TX) |
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Ross Cook
Yes. The special lock nut screws on to the back of the transmission output
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shaft. This resides inside the planetary assembly in front of the OD shaft. Before you can get to it you will have to remove the special (square) snapring and washer. Did you get the OD shaft out? Give me some idea of which exploded parts diagram you are looking at. That might help with the terminology. -----Original Message-----
From: Rick48CJ2A@... <Rick48CJ2A@...> To: WillysTech@... <WillysTech@...> Date: Sunday, June 20, 1999 9:39 AM Subject: Re: [WT] How do you remove the OD? From: Rick48CJ2A@...thing goes together from the diagrams. I think my problem is because thediagrams are only drawn to show the parts for identification purposes, not formade it difficult to get the shaft out. There is a bearing with aninterference fit. Take everything off the shaft. I hope you have a good pair of snapelse. Once you get that out then you can access the square snapring and washer |
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Ross Cook
If you've got rain now, then I guess that means I get rain tomorrow. I
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don't think you can break anything unless you go crazy with a hammer. Whoever designed that thing didn't want it to break. Anyway, if you are looking at the AA catalog? The parts coinciding with the shaft # 11 are one assembly. In other words all of these are assembled onto the shaft. The shaft is in turn inserted into the planetary hub assembly #19. The problem is that everything is close tolerance. So, any rust, crud, etc. will hang it up. A moderate use of force is required. Especially if it has'nt been removed for thirty years. Think about it though. the amount of force and stress involved demands that it be mounted securely. So, I don't see any way out of complete disassembly for a unit that has been attached for that amoun of time. I must have sweated over that thing for about 12 hours. Once I got it apart I realized it was'nt really all that bad. Just different. More like a piece of a lathe or such. In my case there had been water in it so the needle bearings were glued together and the planetary gears were hung. ( still soaking). I sat looking at it with a crow bar and a hammer. Then I would think about Merl and his message. That really saved it. It is a very logical assembly when you break it down. Good Luck. -----Original Message-----
From: Rick48CJ2A@... <Rick48CJ2A@...> To: WillysTech@... <WillysTech@...> Date: Sunday, June 20, 1999 11:28 AM Subject: Re: [WT] How do you remove the OD? From: Rick48CJ2A@...output shaft. This resides inside the planetary assembly in front of the ODshaft. Before you can get to it you will have to remove the special (square)ever publish a maintenance manual for these ODs? They must be very reliablenot completely disassemble this thing without him here. That way if something |
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Ok guys,
With permission from the owner I went to work on removing the OD tonight. I stuck with the prying method but I think after getting it out, that this method would have worked much better. Removed the tranny tower and lock the tranny into two gears at once (great idea to the man that suggested that). Then removed the back cover of the OD. Leaving the cotter pin in place, turn the nut counter clockwise while gently prying out on the OD. This will have rotate the gear on the end of the shaft out of the planetary gear. I haven't removed the planetary gear yet so hang onto your hats and I'll get back to you. I'm hoping the manual will provide more insight. Thanks for all the inputs Rick S (TX) |
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