1988 JCB 1400 Transmission removal HELP

jimwinnt31

New User
Hi does anyone have any tips or how they removed a transmission out of a 1988 JCB 1400b I will make a youtube video with the help. Any help would be greatly appreciated
 
Yes I can tell you how to remove the syncro shuttle from your machine,first choose a level piece of ground that you will be able to use a floor jack on,lift the machine high enough on the jacks so the shuttle can be pulled out while sitting on the floor jack,lower the equipment to the ground,drain the oil from the shuttle,take off the drive shaft/s (2 if it's a four wheel drive)disconnect the selector cable,disconnect the parking brake cable,remove the dipstick and dipstick tube,mark and disconnect the oil cooler lines,mark and disconnect the wiring going to the solenoids on top of the shuttle,disconnect any pressure or temperature switch,remove the pinch bolt from the gear lever and remove the lever,put a support under the engine that will carry its weight when the shuttle is removed,support the shuttle on the floor jack (350Lbs) and remove the bellhousing bolts,remove the bolts from the support bracket,pull the shuttle straight and level back from the engine so it clears the torque converter,lower it down and pull it from under the machine,that's about all I can think of at the moment but common sense should be applied should I have missed anything,if the reason for removing the syncho shuttle is because it has an issue it is a good idea to do a pressure test before removing anything because it can't be done when the shuttle is out,fairly reliable unit that are you having trouble with it?
AJ
 
Yes what it's doing is going up steep hills
it seems to slip or if I put my bucket Into
a tree to push over it just sits there
dosent try to dog in. But backwards it's a
champ I was thinking the clutch packs for
forward are worn.thanks for your input on
removing the transmission.
 
Yes I agree the forward clutch could be worn,by the rule of thumb if it spins the wheels when loading the front bucket in first gear that is as good as it gets,if its not doing that its a fair assumption the forward clutch has an issue,either the discs are slipping cos the pressure is not enough or the discs are worn,I am in the UK we have a Classic Machinery web site with a forum,it also has lot of manuals for JCB's that you can download for free,go to the site at the link below,register (it's free)when registered you can download a copy of a manual for your 1400B,it's in PDF format,look at the top menu bar and click on downloads,construction equipment,scroll down to the JCB's and click on the manual it covers a few models that are the same,it will tell how to do a stall test and a pressure test,when you have that information you can make a very good repair.
Good luck
AJ
Classic Machinery
 
Thanks for your help you seem pretty knowledgeable on these machines. O and I had 2 1 foot hydraulic hoses made up 130$ wow that kinda high i though what do you think.
 
Cannot say about the price of hoses as it would be seldom that I would buy them,I am in the repair business and we do work on all brands of machinery used by construction and utility contractors,JCB been the home brand we come into contact with a lot of them,Case backhoes are fairly common here also,good luck with the repair.
AJ
 
Hi not sure where you are but here in Canada the hoses are expensive to make. I use the 5/8 hose/ and fittings on the main cylinders on my machine.
The hose is about 6-$7 a foot and I think the BSPP fittings average out around the 20-$30 a piece for a straight or elbow. I usually buy those from a
hyd company. If i need smaller sizes urgently the local case IH dealer who is closer has them.

They lean on the pen pretty hard in there, the 1/4's are near as expensive as the 5/8's. In the U.K it is a common thread fitting Here in North
America. It can be harder to find all the sizes so they charge more for them. some of my 1/4" hoses I found BSPP male thread to JIC male adapters
locally. I can then use the more common fittings for when I replace old hoses. I can't find one for 5/8 BSPP to JIC though sadly the books here don't
list them.
Regards Robert
 
What is popular in one place is strange in another,JCB used Goodyear hoses as original equipment,the odd hose would burst and the usual thing to happen the driver would take it off and go to the hose shop and get one made up,I would say with over sixty years experience I never got a hose that was exactly the same length,they always make them up a little bit longer and that's where the trouble starts,if the hoses are not fitted comfortably you can be certain it will fail again,most guys take short cuts to get back to work again leaving off brackets,crossing the hoses,not checking if they are chaffing etc,the way the hoses were routed around the king post of the Case 580C to 580SL left a lot to be desired esp if the machine was a side shift which the most common here in the UK,then when the rock breakers became common was another headache with the larger plumbing needed,hoses hanging all over the place getting caught and leaking,the quick brake couplings leaking because they get thrown on the floor when the breakers are removed and dirt getting in,dont forget guys that there are JCB manuals in PDF format that you can download from the Classic Machinery site for free,lots of other makes there as well.
AJ
 

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