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In my experience…
- Thread starter ahart
- Start date
From what I understand, cat changed to the bronze clutch disks with the G model scrapers though I won’t swear to that. I pulled components in the field and they were transported to the Cat component rebuild center for repair as there was participation from cat on the repair cost. After repair, components were reinstalled. I’m going to guess roughly 16 hrs for R/I.
Not my normal area of expertise, but I guess they figured since it was bolted to the concrete and I’m the guy with sockets on my truck, it falls under the mechanic umbrella. This morning I was tasked with putting a 75 X 90 structural steel building on the ground. Took about 4 hours but it layed down pretty smoothly. 
James Sorochan
Senior Member
- Joined
- Aug 1, 2020
- Messages
- 520
- Location
- Lethbridge county, Alberta, Canada
- Occupation
- x-water & sewer construction Now farmer.
How did you get it on the ground?
Took all the nuts off all the way around, most were 3/4”, it had an H frame between one of the sets of beams on each side that had 16 2-7/16 (socket size) nuts on them. Those were welded to the studs in the concrete. Cut those off flush and went back and cut all the 3/4” studs off flush. Then used a 345D and a 235C to push on the top of one end.
Anybody ever change the gas springs on a D series excavator 70/30 front windshield? #32 in the picture, if so, how did you accomplish it? I’ve done several and the only way I can get them on there is to drill a hole in each end and collapse, then tie together with a piece of mechanics wire. When the window is down, the gas spring is fully collapsed. When window is up, it’s not quite fully extended. It works out, just figure there’s got to be a better way 
Had a couple occurrences of low boost pressure and boost pressure sensor calibration codes on this 349F excavator. Job foreman called me (job is 2 hrs away) and explained codes they had, with just over 10k hrs on machine I told them to go ahead and put a manifold pressure sensor in it and see what happens. They put on in and said all was good. Couple days later the code was back on and they also mention they’re putting in around a gallon of coolant in a day and can’t find a leak. I ordered all the parts to do the NRS cooler and water lines update. I checked out the boost issue and found the pressure sensor was either slow to pick up boost pressure or slow to go back to zero. Removed the sensor from the adapter fitting and found adapter fitting was completely plugged with hard packed soot as was the port in the manifold it threaded into. I’ve seen the NRS Venturi ports get plugged like this plenty of times (checked them afterwards and they were not plugged) but I’ve not seen the soot make it all the way to the manifold pressure sensor fittings. NRS cooler showed signs of leaking, replaced it with updated parts and all was good. 
Truck Shop
Senior Member
Probably got more done anyway.
Depends on your help.
When I was in the shop I worked with a guy… we are perfectly in sync on delicate team tasks like that.
Better off working by yourself if possible unless your mates are on their game.
I’ve spent 30 years removing blades off D8’s that were pulling pans as you chaps call them.Very straight forward job as we used to bury them into the ground and reverse out of them.We almost never removed and stripped them for hauling purposes.
However,this year has seen me working on a job removing a fair few L/N/R and T blades.All were good pins with no wear and nearly all were too tight to pull out.We lanced most of them unfortunately.
Not through lack of trying
I’ve spent 30 years removing blades off D8’s that were pulling pans as you chaps call them.Very straight forward job as we used to bury them into the ground and reverse out of them.We almost never removed and stripped them for hauling purposes.
However,this year has seen me working on a job removing a fair few L/N/R and T blades.All were good pins with no wear and nearly all were too tight to pull out.We lanced most of them unfortunately.
Not through lack of trying
Nige
Senior Member
Would you like some of our rain.? I'll gladly send you some.
I tell you what, throw it in a bucket and send it next Wednesday evening so we can get thanksgiving off. We’ve got Six 627 scrapers, 6 740/745 haul trucks, a 374F, D8T, D6T, D6N and a 349 hoe on this job right now and only one poor field mechanic.
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Anyone who’s ever done these knows, tailgate mount bolts broke off in the bottom of the bed on a 740, 5 out of 8 broke off. Was able to extract 4 of them and had to drill the last one all the way through and torch it to the threads. Couldn’t get it to move for anything. There’s about 2” of threads in the plate. That’s a lot of fight in a stuck bolt.
