Getting ready to rebuild the steering clutches on my 450B
- crawler123
- 430 crawler
- Posts: 97
- Joined: Sat Jul 30, 2011 1:36 pm
- Location: montana
- crawler123
- 430 crawler
- Posts: 97
- Joined: Sat Jul 30, 2011 1:36 pm
- Location: montana
I was kind of worried about getting those 9 big bolts out on the sprockets.
No problem with a 3/4 breaker bar and a cheater.
Now I'm trying to get the seat/tank assembly ready to lift off.
Wow all those hydraulic lines. Can't seem to find the protective plastic plugs locally. Figures !!
I found that a folded baggie and rubber band works better. Keeps most of the bugs and dirt out and some of the hydraulic fluid in.
No problem with a 3/4 breaker bar and a cheater.
Now I'm trying to get the seat/tank assembly ready to lift off.
Wow all those hydraulic lines. Can't seem to find the protective plastic plugs locally. Figures !!
I found that a folded baggie and rubber band works better. Keeps most of the bugs and dirt out and some of the hydraulic fluid in.
- crawler123
- 430 crawler
- Posts: 97
- Joined: Sat Jul 30, 2011 1:36 pm
- Location: montana
- crawler123
- 430 crawler
- Posts: 97
- Joined: Sat Jul 30, 2011 1:36 pm
- Location: montana
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- 440 crawler
- Posts: 215
- Joined: Mon Apr 18, 2011 6:51 am
- Location: Granby,Québec, Canada
- crawler123
- 430 crawler
- Posts: 97
- Joined: Sat Jul 30, 2011 1:36 pm
- Location: montana
Here is a picture of the brake band adjusting screw. It's a special screw with detents. I really don't want to break this screw. It's rusted into the pin at the end of the brake band. Any suggestions?
Also anyone know how to loosen the pinion shaft locking screw? Looks like it's a square head bolt and it's located down in a hole?
Is there a special tool for this? I dumped liquid wrench on it last night but I bet it's as rusted as the rest of everything in the clutch housing. It looks like everything in here has sat in sea water it's so bad.
Also anyone know how to loosen the pinion shaft locking screw? Looks like it's a square head bolt and it's located down in a hole?
Is there a special tool for this? I dumped liquid wrench on it last night but I bet it's as rusted as the rest of everything in the clutch housing. It looks like everything in here has sat in sea water it's so bad.
- crawler123
- 430 crawler
- Posts: 97
- Joined: Sat Jul 30, 2011 1:36 pm
- Location: montana
Thanks Ken and andregrondin for those helpful hints.
I've already tried the impact a little but I think the flexing of the brake band takes the impact shock out before it gets to the threads.
I will try a little heat later.
I'm thinking now that if I get that clutch housing out of the way I will be able to get at the end of the brake band easier.
I was able to loosen the pinion lock nut on the clutch housing. I haven't tried the lock bolt yet because it is a square head. Not sure how to attack that.
Anyone know the thread size on the pinion shaft? I'm measuring 3/8x16. Just want to be sure before buying some allthread for slide hammering.
I've already tried the impact a little but I think the flexing of the brake band takes the impact shock out before it gets to the threads.
I will try a little heat later.
I'm thinking now that if I get that clutch housing out of the way I will be able to get at the end of the brake band easier.
I was able to loosen the pinion lock nut on the clutch housing. I haven't tried the lock bolt yet because it is a square head. Not sure how to attack that.
Anyone know the thread size on the pinion shaft? I'm measuring 3/8x16. Just want to be sure before buying some allthread for slide hammering.
- crawler123
- 430 crawler
- Posts: 97
- Joined: Sat Jul 30, 2011 1:36 pm
- Location: montana
Well got the brake band adjust screw to move. It just took some more elbow grease and a liberal dowsing with liquid wrench.
On the other side that adjuster screw is completely free.
Also on the other side the pinion lock bolt and nut are missing.
I wonder what that would have done to the way the clutches worked?
I'm guessing that with that screw missing that the whole clutch assembly would have moved outward and not wanted to dis-engage the clutch.
There are some springs missing and clips missing. It's a wonder this thing ever worked at all.
On the other side that adjuster screw is completely free.
Also on the other side the pinion lock bolt and nut are missing.
I wonder what that would have done to the way the clutches worked?
I'm guessing that with that screw missing that the whole clutch assembly would have moved outward and not wanted to dis-engage the clutch.
There are some springs missing and clips missing. It's a wonder this thing ever worked at all.
with the set screw missing the clutch will float and wont work for s--t i think the head is 5/16 square i got a socket from sears best price by far.... and in the rust deparment my 2010 looked worse that your 450 i had to take a air chisel to get the clutch pack apart... center drum shot was abel to get presure plate rebuilt and sandblasted the brake drum found used set of clutch plates and steels added one extra steel to make up for wear and away we go working fine
2010 with 622 dozer with mod. 35 ripper and a 2010 with 622 dozer bought in 1969 and a 2010 loader with drott and mod. 36 ripper
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- 440 crawler
- Posts: 215
- Joined: Mon Apr 18, 2011 6:51 am
- Location: Granby,Québec, Canada
- crawler123
- 430 crawler
- Posts: 97
- Joined: Sat Jul 30, 2011 1:36 pm
- Location: montana
Ok I'm kind of stuck again. If you look at the picture below you will see a shaft and two cast bell crank things on it. Well those 2 pieces and that shaft have to come out of the way before I can lift the clutch pack out of the housing.
Now I'm reading the service manual and the description of what to do is just going right over my head. It has to do with moving these 2 pieces around and that woodruff key you can see inside the red circle. Then somehow I should be able to remove the obstruction.
I really need to talk to someone who has done the 450b to make sense of this.
Now I'm reading the service manual and the description of what to do is just going right over my head. It has to do with moving these 2 pieces around and that woodruff key you can see inside the red circle. Then somehow I should be able to remove the obstruction.
I really need to talk to someone who has done the 450b to make sense of this.
- crawler123
- 430 crawler
- Posts: 97
- Joined: Sat Jul 30, 2011 1:36 pm
- Location: montana
- crawler123
- 430 crawler
- Posts: 97
- Joined: Sat Jul 30, 2011 1:36 pm
- Location: montana
Well got the shaft and bell cranks out of the way. That plug on the outside just turned out to be a thin cap and popped out easily.
Getting the woodruff keys out took a little more time.
Got the first pinion shaft out without incident.
Turns out the thread size in the pinion is 7/16x14 and not 3/8x16 like I had originally thought.
Glad I caught that before any damage was done.
Now I need to figure some way of supporting the clutch drum before I try the inner drive shaft.
Getting the woodruff keys out took a little more time.
Got the first pinion shaft out without incident.
Turns out the thread size in the pinion is 7/16x14 and not 3/8x16 like I had originally thought.
Glad I caught that before any damage was done.
Now I need to figure some way of supporting the clutch drum before I try the inner drive shaft.
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