• Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!

New push cat

kcdurtworks

kcdurtworks

Well-Known Member
Joined
Mar 4, 2019
Messages
49
Location
Oklahoma
Looking to upgrade our push cat. Currently pushing 621s with a D7f. Would like to get our loads times down. Anyone use 7h or 7r or should we look for 8k,n,r?
 
skyking1

skyking1

Senior Member
Joined
Nov 3, 2020
Messages
7,659
Location
washington
I liked the 8N I ran. First time it was brand new in '91, and I was new in the union too. 10 years and a whole lot of hours later, that contractor rented it out to the one I was working for and it was like old times. It was tired and a lot looser after 10,000 hours, but still got the job done.
 
S

Shimmy1

Senior Member
Joined
Aug 14, 2014
Messages
4,352
Location
North Dakota
I don't want to disagree with anyone, but we had a Allis 260 (20 yd) that was converted to a dolly pan, pulled by a Challenger 75C, push loaded with a 7H in 2nd gear. I don't know if we were getting as many loads per day as the pros, but we were perfectly satisfied with 2500 yds on a 1000' haul. That 7H had no problem whatsoever stuffing that pan so it had a hard time coming out. Actually had to rebuild the ejector tube because of it.
 
Oldcatpusher

Oldcatpusher

Well-Known Member
Joined
May 29, 2019
Messages
161
Location
Arkansas
I push my 621s with a 6R and 6H through shale, clay, or sandstone. Minute load times or less. I see the OP is in Oklahoma. I parked my push cats last year while working in eastern Oklahoma because the scrapers could self load the clay in a minute.
 
Contractor

Contractor

Active Member
Joined
Oct 19, 2014
Messages
32
Location
Texas
We have pushed Cat 621Bs with Cat D6Ts or Deere 850Ks against D8K. 45 seconds with the first 35 second loads with the later. I’ve pushed with D7Gs but don’t have any data to share.
 
skyking1

skyking1

Senior Member
Joined
Nov 3, 2020
Messages
7,659
Location
washington
Shimmy1 said:
^^^^THIS x1000000
Click to expand...
i'll tell on myself.
I had a crawler loader and did some construction work, ran various other dozers after I had done a season of logging firewood. The hall was empty and I went in there, signed up, and got a dispatch to run a dozer.
I show up and the guy running the work says I don't have a dozer for you, but i need you to run a scraper, ( pointing at a 631)
I straight up told him I had never even STOOD next to a scraper.
His reply?
That's OK, this apprentice has never pushed one either. She was on a D6H and it was an unmitigated disaster. Luckily there was a scraper hand there to help me out and have mercy and show me the easy ride lever.
Later they put my in a brand new D8N, that first year with the lower ROPS and the range selector was a lever instead of the little knob on the next year.
Dozer heaven for a young guy who had only been on 350 johnny, td18, international 175, D6C, insley 1500.
I was pushing a couple of 631's and cleaning up, building a lot for the dirt contractor themselves.
Yesterday I took a load of asphalt demo to the pit just uphill from that lot, and i could look down across it some 30 years later.
 
old-iron-habit

old-iron-habit

Senior Member
Joined
Nov 22, 2012
Messages
4,233
Location
Moose Lake, MN
Occupation
Retired Cons't. Supt./Hospitals
Nige said:
The day scraper operators turned into pussies was the day the cushion hitch was introduced - IMHO.
Click to expand...


And on the same token some of them older hands that got to finish their careers with cushion hitches were able to walk erect until almost 50 years instead of 40. I still like a Cat and Cable Can the best, but then the ones I play with are my age and don't go very fast.
 
You must log in or register to reply here.
Top