Thats too early to tell . In the real world nobody is going to give you a dozer and 15 thousand to cover repairs . A point I should have made in my last post is you won't be able to get at all the bolt heads around the clutch's , I counted the number I could not get at and removed the same number next in line , THEN MOVED THE DOZER WITH THE PONY MOTOR , saves using a jack like one of the posters has said .
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76 D4D new toy with problems
- Thread starter Un4gvn
- Start date
OzDozer
Senior Member
That D4D is direct electric start, so no pony to utilise there. I guess you could use the electric starter, but that's hard on electric starters, and outside their design limitations.
A jack on the track works just fine - unless you do what the brother and I did, when we were young and still dumb (1965) - we positioned our (new) toolbox on the track, and had so much fun jacking the tractor along and unscrewing the steering clutch bolts, we forgot about the toolbox!
When the toolbox reached the top carrier roller, it overbalanced and fell off the track! Didn't exactly improve the operation of the toolbox drawers, from that day on! Hard lesson learned!
A jack on the track works just fine - unless you do what the brother and I did, when we were young and still dumb (1965) - we positioned our (new) toolbox on the track, and had so much fun jacking the tractor along and unscrewing the steering clutch bolts, we forgot about the toolbox!
When the toolbox reached the top carrier roller, it overbalanced and fell off the track! Didn't exactly improve the operation of the toolbox drawers, from that day on! Hard lesson learned!
OzDozer
Senior Member
Ooops, yes, we're talking about a powershift machine here, aren't we? Epirbalex threw me back to direct drive, when he started talking about a PONY MOTOR! What were we talking about again?? LOL
Yes, bolts on the D4D hold the brake drum only. But the tractor I was working on in 1965 was an Allis-Chalmers, and they had bolts in both clutch assembly and the brake drum - and lots of them!
All the power boosted oil steering clutches in Cats have bolts in both clutch assembly and in the brake drum.
I hate dry clutches with a vengeance, oil clutches were a huge advance. No more smoking brake linings when the workload got heavy! Chaining down heavy timber was murder on clutches and brakes, always getting pulled off line, and having to try to straighten up again.
Yes, bolts on the D4D hold the brake drum only. But the tractor I was working on in 1965 was an Allis-Chalmers, and they had bolts in both clutch assembly and the brake drum - and lots of them!
All the power boosted oil steering clutches in Cats have bolts in both clutch assembly and in the brake drum.
I hate dry clutches with a vengeance, oil clutches were a huge advance. No more smoking brake linings when the workload got heavy! Chaining down heavy timber was murder on clutches and brakes, always getting pulled off line, and having to try to straighten up again.
We are , I'd have a crack at using the main motor on this one , biggest problem would be setting up a small diesel tank .
OzDozer
Senior Member
A jack under the grousers to move the tractor is simple, straightforward, and doesn't require jerry-rigging fuel systems and running the main engine. The advantage of the jack under the track, is that due to final drive gearing, it only takes a small amount of track chain movement to spin the steering clutches a full revolution.
This mechanic is only using a cheap trolley jack to move the tracks forward on an earlier model 7U D4.
This mechanic is only using a cheap trolley jack to move the tracks forward on an earlier model 7U D4.
He had no choice because his motors are out . And he has a concrete floor . Using a rattle gun would have needed the dozer moved more than the once . Brings back a few memories seeing the dozer opened up
R.D.G013
Senior Member
- Joined
- Apr 6, 2013
- Messages
- 257
- Location
- sunshine coast qld australia
- Occupation
- Heavy equipment operator/foreman for about 48yrs o
D 4 D s could be converted to a wet back end as one we had new back in NZ in the early 70s came as a dry backend but they had the dealers change it a wet one, was a P/S machine.
tctractors
Senior Member
Two or Three worth while tips for anyone lifting the Cross Shaft out of a D4C or D is to always note the position of the Bevel Gear in relation to the case so mark things, the adjuster collars on the cross shaft bearings need to be undone way off especially behind the bevel gear side to allow the un-meshing of the bevel gear and pinion or you will damage the heel of the pinion as a common thing, use the clutch release yolks to lift out the cross shaft via the top of them and do it slow and steady helping the ring gear to pass the pinion, you will then need a bit of flat steel bar drilled to bolt to the brake drum with 2 bolts to undo the nut that holds the clutches to the cross shaft, I have a fancy 1" drive socket for this job that is reduced on the outside diameter, the nut is locked also, then you will need the CAT Service press kit to press them off. good luck tcractors
Biggest problem to overcome is the thought that those saying it can't be or shouldn't be done are correct .
Un4gvn
Active Member
Well I'm in no way excited about this project!! But I'll get it done.
What is a fair price for a D4E winch with driveshaft and controls?
Is anyone running an enclosed cab and rollover protection over it? I would like to see pictures if you are or have seen a picture.
What is a fair price for a D4E winch with driveshaft and controls?
Is anyone running an enclosed cab and rollover protection over it? I would like to see pictures if you are or have seen a picture.
D6 Merv
Senior Member
- Joined
- May 10, 2007
- Messages
- 653
- Location
- Coromandel Peninsula. New Zealand
- Occupation
- Self employed bulldozing contractor with a D6D D4E
Un4gvn. To put a winch on a powershift D4D it has GOT TO have factory installed PTO arrangement. There is NO pto shaft on standard D4D powershift transmission. There was 2 types of PTO. 1st type had a disconnect dog clutch with a lever by your left heel to disengage bevel gear and then engage winch. You have GOT TO have this setup to run a Hyster D4E winch, because its a sliding gear winch. Also the winch drive shaft is longer for the powershift usage, than if the winch came off a direct drive D4D which is a shorter shaft.
Later D4D have "Live PTO" ie constant running non interuptable; and you have to have a powershift winch on these like
1 Hyster W5B
2 Hyster W5A
3 Cat model 54
those winchs are listed in order of whats the best one to run and own.
RE the wet backend D4D s, wet steering clutchs and brakes were a factory option on later japanese built 47H and 65J models.
Later D4D have "Live PTO" ie constant running non interuptable; and you have to have a powershift winch on these like
1 Hyster W5B
2 Hyster W5A
3 Cat model 54
those winchs are listed in order of whats the best one to run and own.
RE the wet backend D4D s, wet steering clutchs and brakes were a factory option on later japanese built 47H and 65J models.
R.D.G013
Senior Member
- Joined
- Apr 6, 2013
- Messages
- 257
- Location
- sunshine coast qld australia
- Occupation
- Heavy equipment operator/foreman for about 48yrs o
Yeah, the D4D we had at Renners had the Dog Clutch set up so when using the winch U used the P/S trans which gave U 3 fwd and 3rev on the drum, also had a hyd tit bull blade and towed a Cat 40 scoop behind it as well.
Un4gvn
Active Member
Well that's not good news. I know where another D4D is that's been sitting along time that was a skid tractor. Maybe it has what I need.
Un4gvn
Active Member
View attachment 274565 View attachment 274565 I finally cat the D4D power shift home and she definitely needs work but I love it already. They bent the track adjuster bad! How do you do that? And what is the tiny know under right heel?Attachments
Un4gvn
Active Member
Un4gvn
Active Member
Un4gvn
Active Member
Will a winch fit with this cab? Or am I going to need to redo the lower part?
Old Magnet
Senior Member
I show 83J3215 to be a 1974 model and looks like you lucked out and got the PTO option. ROPS mounting would have to be changed to mount a winch.
OzDozer
Senior Member
You can bend the track adjuster pushrod by ramming the front idler into a big rock or a big stump.
That looks like a brake locking latch for parking, to me.
One dopey fitter has installed the hydraulic hoses to the blade lift cylinders the wrong way around. They failed to note their position when they removed them.
Simply disconnect the hoses at the lift cylinder and swap them around. Even a Cat dealer did that to me once.
Yes - but it's a pretty rough repair. It's a common procedure to cut the end off lift cylinder shafts and attach a new piece of chromed shaft with weld.
You'd have to hope they did a good job with the welding, and got good deep penetration through the whole thickness of the shaft. Good workmanship would see the welding finished off with neat machining.