Terex TA30 leak at ZF transmission input flange

[Philip S King]

Can anyone suggest procedures, tools or tricks to replace about a 3.5 in diameter ZF transmission input shaft seal. Look like I will have to hang upside down between the engine and transmission with maybe 20 inches of clearance.

Thanks

 

[Philip S King]

Parts book has "8.5 c" in the flange description. May that means the flange(yoke) is 8.5 c diameter. Should I try to purchase seal removal or installation tools? Any suggestions? I did the rear lower output seal. It was a pain and I had good access.

 

[Bigbert]

Hi Philip,
the exchange shouldn't be a bigger challenge.
Take out prop shaft, bolts (secured with loctite, so heat up), take out seal ring, fit the new one, fit the bolts with Loctite.

 

[Philip S King]

Hi Philip,
the exchange shouldn't be a bigger challenge.
Take out prop shaft, bolts (secured with loctite, so heat up), take out seal ring, fit the new one, fit the bolts with Loctite.

Thanks for the help. I found a bigger leak. On the lower back, to the left of the rear output shaft, oil is dripping from a hole. This hole is close to the frame and difficult to see and difficult to access. Do you know what is in this hole? Is there a faster inside? There are two similar holes above it. Please see the attached picture.

 

[Philip S King]

Hi Philip,
the exchange shouldn't be a bigger challenge.
Take out prop shaft, bolts (secured with loctite, so heat up), take out seal ring, fit the new one, fit the bolts with Loctite.