Location of seral number plate on Cat towed scraper box.

All the pulled scrapers I have seen ,have the plate attached to the left side,meaning the driver side ,near where the draft arm is pinned to the side of the scraper .That includes rubber tired scrapers with engines too.

Only one tag, usually on the LH side of the goose neck. Some earlier versions were on the RH side. Very common to be missing.

As Old Magnet states, look on the gooseneck of the scraper. One of mine has been plated over it to strength the gooseneck, very common to see this, and covers the serial area.-glen

Thanks for the information, I went out to see some Link club friends making a new reservoir with two D8H 68A tractors (These are powershift D8H tractors made in Glasgow in the UK. The Glasgow produced direct drive tractors D8H tractors had 22A serial numbers), one with a blade, one with a scraper box. I've been trying to identify the model of the boxes which were converted to hydraulic operation using parts salvaged from (we believe) model 6x1 motor scrapers.

The location is in "The Fens" near Chatteris and the ground consists of high organic "Black land" overlying brown and blue clays. It's very difficult to get down to the clays due to all the rain we have had recently making "bad muck" of the organic soils.
I've attached some pictures, enjoy !
If anyone can identify the model of the scraper boxes, I would be grateful as I have a feeling the serial number tags will be missing.

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Looks like 5Wxxxx series #80 scrapers to me. 15 yds struck, 20 yds heaped.

Looks like 5Wxxxx series #80 scrapers to me. 15 yds struck, 20 yds heaped.

Are you absolutely certain that it was converted from cable? If so, someone did an outstanding job. It does not have a "cable look" i.e. top of ejector grillwork is different; apron lift arm is different, etc. but looks like it was always hydraulically operated. I'm no expert but I've spent a lot of time watching one of these follow me around all day!-Jan

Are you absolutely certain that it was converted from cable? If so, someone did an outstanding job. It does not have a "cable look" i.e. top of ejector grillwork is different; apron lift arm is different, etc. but looks like it was always hydraulically operated. I'm no expert but I've spent a lot of time watching one of these follow me around all day!-Jan

Hi John
Assume these are all Birtley ones; not genuine US cat ones.
All the Birtley ones had the s/n tags on the r hand side back from where the apron hinges to the box. About where the hyd hoses lead back to the ejector. All Birtley 70 and 80s were like this.
Early versions would have a 'B' in front of the serial number; ie my Birtley 70 is B3W258. 80s were B5W.
Later Birtley scrapers all had there own serial numbers. ie 70 was 91D. Other sizes were also made there No15, 428, 435 and 463.
Was a lot of Birtley scrapers made it to NZ along with alot of wright 40s from south africa
cheers merv