- Asphalt Screed
- 10-20B (S/N: BWN1-UP)
- 816-B (S/N: BWL1-UP)
- AS3251C (S/N: JJN1-UP)
- AS3301C (S/N: DWM1-UP)
- AS4252C (S/N: TPS1-UP)
- SE50 V (S/N: J971-UP)
- SE50 VT (S/N: J6K1-UP)
- SE60 V (S/N: JJ31-UP)
- SE60V XW (S/N: JS91-UP)
- SE60VT XW (S/N: TLW1-UP)
- 816-B (S/N: BWL1-UP)
Extended life screed plates are now available through the Cat parts system. These plates are available as a field-install option only. The extended wear plates have a chromium carbide weld overlay and may have up to four times the wear resistance of standard plates. They are searchable in SIS web, under the appropriate screed serial number prefix: “Plate GP – Screed – Extended Life”
The extended wear screed plates have an irregular working face due to the plate being made up entirely of weld passes. Due to this irregular surface, standard screed flattening practices do not work the same as they do with smooth screed plates. Minor differences in screed models can vary adjustment procedures.
Plate Operation
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| Illustration 1 | g06140451 |
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Direction of travel | |
Ensure that the plate is installed so that the weld overlaps are in the correct orientation for direction of travel.
Note: Early versions of the extended wear plates may have an arrow etched into the working face. This arrow points to the rear of the plates and is intended for manufacturing purposes only. It will not affect the performance of the plate.
SE Series Screeds
The bottom areas of the frames of these screeds are machined flat. On these screeds, it is suggested to bring up the screed plates tight to the frame surfaces before making any flatness checks. Do not adjust the corners, but make flattening adjustments in between.
There may be locations where the welds on the studs interfere with the mounting provisions on the screed. If so, the screed frame or the stud weld can be ground down to eliminate this interference. Care should be taken to avoid removing significant amounts of weld on the studs. After installing screed plates on the SE series screeds, torque all screed plate studs to
Note: SE60V, 60V-XW, and 60VT-XW require new 513-2924 Hold-Downs.These are shown in the extended life plate groups.
AS4252C
The bottom areas of the frames of these screeds are machined flat. On these screeds, it is suggested to bring up the screed plates tight to the frame surfaces before making any flatness checks. Do not adjust the corners, but make flattening adjustments in between.
10-20B, 8-16B, AS3251C, AS3301C
On these screeds, it is suggested to set the distance that the main screed corner adjusters protrude from the frame before making any other settings, as with a normal plate replacement:
| Rear Corners | |
| Front Corners | |
Flatness Checks
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| Illustration 2 | g06140485 |
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View of flatness checking | |
The same basic procedures apply for screed setup as when using standard plates. The only difference is when checking flatness, extra error must be considered, due to the irregular weld surface. When performing flatness checks, do not adjust if flatness is within
Extender Angle of Attack
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| Illustration 3 | g06140468 |
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View of screed (A) Forward most weld (B) Rearward most weld | |
The same extender angle of attack specifications is used as with a smooth plate install. Refer to screed test and adjust for particular model specifications. It is suggested to take the extender angle of attack measurement at the low spot of the welds, forward most and rear most positions. Set the desired angle of attack so that the gap in the low spot of the forward most weld (A) is the desired amount higher than the low spot of the rearward most weld (B).
New Plate Wear In
The extended wear plates may have a break-in period. If possible, pave class five aggregate, sand, or base course material before paving finish course material. Slight tears may occur in the mat, which should roll out.