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Front and rear CCU units

Front and rear CCU units

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Palmer
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Are there any discernible benefits of a front mounted CCU over a rear mounted CCU?
I don't have much (any) knowledge of either, but quite often see them on avertised sale machines and wonder about the durability and accessibility of each system.
I'm just Curious to know if one system is regarded as being superior in any way or form to the other.
Cheers.
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Mon, Jun 22, 2015 6:39 AM
drujinin
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Benefit of a front mounted over rear mounted is that its live as its engine driven plus you can put a Cargo Winch on the back.
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Mon, Jun 22, 2015 6:56 AM
Rome K/G
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Reply to drujinin:
Benefit of a front mounted over rear mounted is that its live as its engine driven plus you can put a Cargo Winch on the back.
Or like drujinin said you can also have a Cable Control on the back for scraper use with having the front cable blade unit.
Gary
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Mon, Jun 22, 2015 8:18 AM
ccjersey
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My experience with 9U D6 is that the front control is much quicker operating a dozer, in my hands to the point of being "touchy" compared to the rear double drum type.
D2-5J's, D6-9U's, D318 and D333 power units, 12E-99E grader, 922B & 944A wheel loaders, D330C generator set, DW20 water tanker and a bunch of Jersey cows to take care of in my spare time😄
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Mon, Jun 22, 2015 10:13 AM
neil
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Reply to ccjersey:
My experience with 9U D6 is that the front control is much quicker operating a dozer, in my hands to the point of being "touchy" compared to the rear double drum type.
One thing I learned at Santa Margarita (well, I learned a whole bunch of stuff but this one's relevant here) is that the 14A has a live drive to the rear CCU so it can be operated regardless of the main clutch (is that all 14As or after a serial # break?). But still, if I had my druthers, I'd still want a front CCU for the blade to free up the rear
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Mon, Jun 22, 2015 7:36 PM
Palmer
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Reply to neil:
One thing I learned at Santa Margarita (well, I learned a whole bunch of stuff but this one's relevant here) is that the 14A has a live drive to the rear CCU so it can be operated regardless of the main clutch (is that all 14As or after a serial # break?). But still, if I had my druthers, I'd still want a front CCU for the blade to free up the rear
Thanks for the advice. I agree now as well that it would be most benificial to have a free rear end to add other attachments and as well as having a live ccu when the engine is running.
Cheers.
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Tue, Jun 23, 2015 5:02 AM
neil
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Reply to Palmer:
Thanks for the advice. I agree now as well that it would be most benificial to have a free rear end to add other attachments and as well as having a live ccu when the engine is running.
Cheers.
One safety item to mention is that it is imperative that the engine be stopped before attempting any adjustments
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Tue, Jun 23, 2015 7:48 AM
Paso Bob
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Reply to neil:
One safety item to mention is that it is imperative that the engine be stopped before attempting any adjustments
Neil, my 14A cable unit is powered by a PTO through the rear housing. I bought a live #29 unit with the drive line that powers off the back of the engine just under the floor boards. I plan to change it out this year. I am told the type of CCU's installed during assembly were pre-designated as options. I think having a front CCU for the blade lift and a rear CCU for powering scrapers would make a great combo.
D-4 7U-43159 with 4S dozer and Cat 40 scraper, D-7 3T-1179 with Cat 7S hydraulic dozer, D-7 17A 13,944, D-8 14A-1160 with Cat 8S cable dozer, Cat 12-99E-4433 Grader. All runners and users.
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Tue, Jun 23, 2015 11:28 AM
neil
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Reply to Paso Bob:
Neil, my 14A cable unit is powered by a PTO through the rear housing. I bought a live #29 unit with the drive line that powers off the back of the engine just under the floor boards. I plan to change it out this year. I am told the type of CCU's installed during assembly were pre-designated as options. I think having a front CCU for the blade lift and a rear CCU for powering scrapers would make a great combo.
Hi Paso Bob,
I was lucky enough to run Arlie's 14A and Pete pointed out before I set off that it had the live drive to the rear - nice! Oil Slick found it got old fast reminding me to engage the main clutch each time I looked at him with a "why doesn't the blade raise" look on my face : )
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Tue, Jun 23, 2015 7:03 PM
Old 3T lover
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Reply to neil:
Hi Paso Bob,
I was lucky enough to run Arlie's 14A and Pete pointed out before I set off that it had the live drive to the rear - nice! Oil Slick found it got old fast reminding me to engage the main clutch each time I looked at him with a "why doesn't the blade raise" look on my face : )
I had a 3T D-7 with a front CCU. I liked it for lite clearing and dirt work. The rear CCU was better for heavy stumping....more power and the added weight on the rear.

You really should remove the blade if you plan to do much scraper work.
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Tue, Jun 23, 2015 9:52 PM
7upuller
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Reply to Old 3T lover:
I had a 3T D-7 with a front CCU. I liked it for lite clearing and dirt work. The rear CCU was better for heavy stumping....more power and the added weight on the rear.

You really should remove the blade if you plan to do much scraper work.
Hey Gang,

Maybe OldMagnet can verify this. I don't have a front cable unit, but I've been told that a rear unit has bigger clutches and brakes. I've been told that the rear unit will out work a front one. I don't have experience to verify though. Rear units were made in different sizes. I have both #23 (smaller) and #25 units on my D6's. #25 units on my D7's. #29 live units on my D8's.
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Tue, Jun 23, 2015 10:09 PM
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