Help! Dropped tool into transmission. of David Brown 990

mennometis · Jul 14, 2022

What is the best method to fish a 4 inch socket extension out of a DB 990 transmission?

Shifter was jammed again and I opened it up to reset, but now can't find the tool. I am pretty sure it fell in while I was distracted by something else.

Tony in SD · Jul 14, 2022

Magnet on the end of a flex rod worked for me.
Tool

DoubleO7 · Jul 14, 2022

Can't see it after you drained the tranny?

Steve@Advance · Jul 14, 2022

How big is the drain plug?

Often things like that will go right to the drain plug since it's the lowest point.

Possibly it can be stood up and fished out with a magnet.

Or the flex magnet Tony suggested. If you can't get it to the bottom without grabbing everything on its way
down, bend a piece of copper tubing big enough for the magnet to slide inside to guide it down.

cjunrau · Jul 14, 2022

I have used cow magnets as they are stronger. tape to a rod and use to fish with. I would say you will have to drain the oil anyway.
sometimes if you get a real strong magnet you can pull it along the bottom and get it to the drain hole.

mennometis · Jul 14, 2022

Drained the tranny. Can't see anything. Tried magnet with flexible shaft and got it stuck in there.

How big of job to remove transmission case cover. Have to remove cluster, steering column first?

showcrop · Jul 14, 2022

(quoted from post at 12:36:43 07/14/22)
Drained the tranny. Can't see anything. Tried magnet with flexible shaft and got it stuck in there.

How big of job to remove transmission case cover. Have to remove cluster, steering column first?

How did it fall in with the cover on?

mennometis · Jul 14, 2022

I get your point. Shifter pops out of place once in a while and needs to be removed (using 7/16 socket with extension.) I cheated and tried using extension instead of a pry bar to pry the sliders into position. It fell in through the shifter hole to the bottom (I think, I was distracted trying to grab the socket from falling off the tractor.)

The gearing, shafts and piping are too busy at the shifters to see and/or access.

We got all the bolts out of transmission cover and will try to lift after supper.

mennometis · Jul 15, 2022

Thank-you all for the good advice. Flexible magnetic pickup tool probably would have worked eventually. Advice: make sure the tool's magnetic head is not much bigger than the shaft or it will find a home somewhere in the transmission and not want to leave. My partner in crime (wife) happened to send it into the rear diff.

Anyway, found the socket extension inside, got the transmission top cover back on late last night and just have to put the steering column, instrument cluster and seat back on and should be good to go.

Thanks again!

showcrop · Jul 15, 2022

(quoted from post at 12:17:18 07/15/22)
Thank-you all for the good advice. Flexible magnetic pickup tool probably would have worked eventually. Advice: make sure the tool's magnetic head is not much bigger than the shaft or it will find a home somewhere in the transmission and not want to leave. My partner in crime (wife) happened to send it into the rear diff.

Anyway, found the socket extension inside, got the transmission top cover back on late last night and just have to put the steering column, instrument cluster and seat back on and should be good to go.

Thanks again!

Good job! give the assistant a day off with pay!

Help! Dropped tool into transmission. of David Brown 990

mennometis

Member

Tony in SD

Well-known Member

DoubleO7

Well-known Member

Steve@Advance

Well-known Member

cjunrau

Well-known Member

mennometis

Member

showcrop

Well-known Member

mennometis

Member

mennometis

Member

showcrop

Well-known Member

Similar threads