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D7 dozer

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Billy-
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I am going to looking a D7D [17A] sometime in the next few days [need a buddy for my D4 2T]. From memory a D7D 17A has a D339 engine and is about 140 horsepower. It has has a hydralic blade and a canopy, what would be an estimite weight. When i go for the inspection what should i check out and what questions do i ask. I assume this would be a good reliable dozer being a CAT, as long as it had been maitained and taken care of. Any extra infomation would be appricated. I would be happy to do fix anything that goes wrong on it. Where the later D7D 17A`s Direct Electric start with Glow Plugs? THANKS

Thanks So Much Any For Any Help

BILLY
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Fri, Dec 12, 2008 2:40 PM
SJ
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Most the 17As around here when I was woking at the dealer when they were new had starting engines on them. I believe if you wanted DI it was optional (attachment).If you can take a friend along that has some experience in tractors to help check things out.Couple things to check is that final drives aren,t leaking and engine starts and runs smoothly and not slobbering oil and the under carriage if the pins and bushings are good and tracks not worn out and sprockets.Check all oils too and operate it to see how it runs. This is just a few things to look at and check. Yes they had the D339 engine.
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Fri, Dec 12, 2008 8:00 PM
Old Magnet
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Reply to SJ:
Most the 17As around here when I was woking at the dealer when they were new had starting engines on them. I believe if you wanted DI it was optional (attachment).If you can take a friend along that has some experience in tractors to help check things out.Couple things to check is that final drives aren,t leaking and engine starts and runs smoothly and not slobbering oil and the under carriage if the pins and bushings are good and tracks not worn out and sprockets.Check all oils too and operate it to see how it runs. This is just a few things to look at and check. Yes they had the D339 engine.
Bare tractor weight 26,555 lbs.
Add another 3-5,000 lbs approx for hyd blade set up.
To my knowledge the D339's in the 17A series were all pony motor start.
Direct start did not come about until the D333C in the D7E 95A & F 93N series in 1969 - 1970 followed by the 3306.
(Do stand to be corrected as I'm using a "sometimes right" source😊 😊 )
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Sat, Dec 13, 2008 12:31 AM
Billy-
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Reply to Old Magnet:
Bare tractor weight 26,555 lbs.
Add another 3-5,000 lbs approx for hyd blade set up.
To my knowledge the D339's in the 17A series were all pony motor start.
Direct start did not come about until the D333C in the D7E 95A & F 93N series in 1969 - 1970 followed by the 3306.
(Do stand to be corrected as I'm using a "sometimes right" source😊 😊 )
Thanks for the help. Its great to have you guys on here your a big help. Im waiting for the seller to ring back to tell me when i can look at it. Im guessing that the Pony motors on the D7D 17A would be electric start. Any more info on these the D7 would be great.

Thanks
Billy
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Sat, Dec 13, 2008 4:03 AM
Old Magnet
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Reply to Billy-:
Thanks for the help. Its great to have you guys on here your a big help. Im waiting for the seller to ring back to tell me when i can look at it. Im guessing that the Pony motors on the D7D 17A would be electric start. Any more info on these the D7 would be great.

Thanks
Billy
Hand crank pony was standard (Through the hood crank...stand on tracks).
Electric pony starter was an attachment.
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Sat, Dec 13, 2008 4:45 AM
Billy-
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Reply to Old Magnet:
Hand crank pony was standard (Through the hood crank...stand on tracks).
Electric pony starter was an attachment.
Thanks Old Magnet. Does anyone know what Transmission it would have?

Thanks Billy
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Sat, Dec 13, 2008 5:15 AM
Old Magnet
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Reply to Billy-:
Thanks Old Magnet. Does anyone know what Transmission it would have?

Thanks Billy
17A's are direct drive and oil clutch.
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Sat, Dec 13, 2008 8:15 AM
Rome K/G
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Reply to Old Magnet:
17A's are direct drive and oil clutch.
My 17A19040 has elec. pony start and controls to start the pony and diesel from the seat.
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Sat, Dec 13, 2008 8:23 AM
OzDozer
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Reply to Rome K/G:
My 17A19040 has elec. pony start and controls to start the pony and diesel from the seat.
Direct electric start was never offered as an option on the D7D, it only became available when the high HP D7E was released. The D7D offered the option of 12V electric "in seat", or "on the side", starting for the pony.

The Product Improvement Review dated June 1965 (form 36187) details all the improvements available to the D7D from its release. These are substantial in number and the booklet takes up 24 pages listing them all.

The Product Bulletin of May 12, 1959, itemised the D7D improvements upon its release, and these featured ..

Lube-for-Life track rollers and idlers ..
New design track groups that featured tapered bushings, new larger diameter track bolts, and new design links ..
A turbocharger added to the engine ..
A pressure fed transmission with filter ..
A dry-type aircleaner ..
Increased fan speed via a smaller fan pulley ..
A new fuel injection pump housing with a round rack, and integral oil supply with the engine ..
New torque spring and spacer in the governor ..
Coarse pitch final drive pinions and gears from the 572 pipelayers (previously fine pitch gears were used) ..
A boost in FHP from 128 to 140.
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Sat, Dec 13, 2008 10:39 AM
Billy-
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Reply to OzDozer:
Direct electric start was never offered as an option on the D7D, it only became available when the high HP D7E was released. The D7D offered the option of 12V electric "in seat", or "on the side", starting for the pony.

The Product Improvement Review dated June 1965 (form 36187) details all the improvements available to the D7D from its release. These are substantial in number and the booklet takes up 24 pages listing them all.

The Product Bulletin of May 12, 1959, itemised the D7D improvements upon its release, and these featured ..

Lube-for-Life track rollers and idlers ..
New design track groups that featured tapered bushings, new larger diameter track bolts, and new design links ..
A turbocharger added to the engine ..
A pressure fed transmission with filter ..
A dry-type aircleaner ..
Increased fan speed via a smaller fan pulley ..
A new fuel injection pump housing with a round rack, and integral oil supply with the engine ..
New torque spring and spacer in the governor ..
Coarse pitch final drive pinions and gears from the 572 pipelayers (previously fine pitch gears were used) ..
A boost in FHP from 128 to 140.
Thankyou everyone for your help. The guy rang back today. Said he`s going away for christmas. So i will have to wait till after Christmas till i get to inspect it. There is a picture of it at http://www.farmclearingsales.com.au/images/marketplace/ads/1229050218.jpg
What do you think of it. Im not to fussed about the appearence.

Thanks Billy

I hoped my link worked.
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Sat, Dec 13, 2008 3:13 PM
OzDozer
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Reply to Billy-:
Thankyou everyone for your help. The guy rang back today. Said he`s going away for christmas. So i will have to wait till after Christmas till i get to inspect it. There is a picture of it at http://www.farmclearingsales.com.au/images/marketplace/ads/1229050218.jpg
What do you think of it. Im not to fussed about the appearence.

Thanks Billy

I hoped my link worked.
Billy - The tractor looks to be in quite satisfactory condition. If the rest of the undercarriage is as good as the grousers, you'll be set. However, the condition of the sprockets, track chains (rails) and pins and bushings is not visible in the pic, and you need to ascertain the condition of them, to get a better idea of the overall condition and value of the tractor.

The blade is a genuine Cat 7S (straight) blade, and it's in good shape. However, the blade originally, has been a cable control blade, as evidenced by the pulley mount on top of the hardnose above the radiator. Someone has done a hydraulic conversion to the blade, and its a bit of home-built special. Those rams are not Cat, and the mounting arrangement is not Cat either. The entire hydraulic setup appears to have been swiped off a "Brand X" and modified to fit the tractor. The whole setup is the worst feature of the tractor, and reduces its value, rather than increasing it.

The canopy looks like it was built from the remnants of his last security fencing job, and cost him a whole $14.25. You wouldn't want to place any faith in that arrangement doing any more than keeping the sun off you.

Get some good close-up pics of the undercarriage, when you visit the tractor, and check out the tractor for cooling system condition, radiator condition, cracks and welds, and any other suspect repairs. The left track appears to be in need of a track adjuster re-seal.
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Sat, Dec 13, 2008 4:09 PM
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