【正文】 e of a FixedWidth Screed is a deeper screed plate of 500mm pared to a screed plate of 250mm found on Extending Screeds. This has a positive effect upon the screed‘s floating behaviour. Moreover, the leading edge of the FixedWidth Screed forms a single line over the entire pave width and different planning angles do not leave marks in the pavement. FixedWidth Screeds are capable of handling considerably larger pave widths than Extending Screeds, albeit with restrictions as regards the screed‘s variability. As a result, FixedWidth Screeds are particularly suited to paving long sections with a large, unchanging pave width. Building Up a FixedWidth Screed with Bolton Extensions Bolton extensions are fitted to enlarge the screed’s width. The trailing edges of the screed plates shall be flush across the entire pave width. The leading edges of the screed plates should be set higher towards the outside by roughly . In order to prevent the bolton extensions from bending towards the rear as a result of the pressure exerted by the mix, horizontal braces must be fitted. Horizontal braces are to be fitted in such a way that the trailing edges of the screed plates are flush. To pensate the uplift at the outer edges of the screed, there should be a light sag of the screed when raised. The magnitude of this sag depends on the pave width. The sag can be adjusted by way of the braces over the screed’s basic unit. SetUp of Tamper The tamper shall be set to an identical stroke length across the entire pave width. The setting can be changed by simply turning the eccentric bush on the shaft driving the tamper bar. The driving shaft is accessible from behind, so that this can easily be done between job site sections. Adjusting the lower reversal point of the tamper bar, however, takes more time. First, the tamper shields need demounting. Then remove the screws on all shaft brackets. After loosening the locking nut (2), the tamper bar can be adjusted via bolt (1). The height to be set depends on the tamper stroke selected. SetUp of Tamper Shield The tamper (3) must be set so that it rests on the wear strip (1) across the full width. Then adjust the spring steel bar (2) on the tamper shield by means of screw (4) from the rear of the screed until a gap of 1mm is obtained between tamper bar and the spring steel bar. Release screws (6) and fit various small shims (5) to align the tamper shield. With the tamper shield correctly aligned, the spring steel bar (2) is at least parallel with the tamper or preferably inclined slightly to the front. Check the clearance between tamper and spring steel bar and correct, if necessary. Tip! At a stroke length of 2mm, the tamper bar should be flush with the screed plate (check with your hand). SetUp of Pressure Bar(s) 1. Unscrew the nut (2) with antitwist device (3) on the hydraulic ram (1) for the pressure bar. 2. Turn the hydraulic ram (1) to adjust the height of the pressure bar. The clearance (7) between pressure bar and bottom edge of the screed plate should be at least 4mm. 3. Check that the hydraulic ram for the pressure bar makes contact with metal plate (5) when retracted. 4. Set pretension of spring (6) to via nut (4) to yield a distance (8) of . 5. Resecure the hydraulic ram (3) for the pressure bar. Bevel Irons Bevel irons shape and pact the edges of the pavement. They are available with a bevel edge of 45176。 熨平板的壓縮系統(tǒng)，緊湊的組合 到 最大限度 。 即使在一個大的寬度鋪路時，福格勒熨平板的工作精度仍然最高，而且可以使路面邊緣的均勻密度達到精湛的程度， 當(dāng)安裝螺栓擴展裝置時，必須采取護理措施，以確保熨平板的底邊是與相鄰的部位 平齊 ，否則一個小步驟都可能使 攤鋪路面或熨平規(guī)劃角度發(fā)生改變。 Ⅲ. 仔細降低 熨平板的 延伸 部 位。 Ⅵ. 調(diào)整所有 的 螺紋 軸 套 。 然后 通過主軸前端調(diào)整延伸 部 位 的刨角 。 寬度 固定的熨平板 安裝有壓縮系統(tǒng)的 固定寬度的熨平板