側(cè)滾式艙口蓋安裝調(diào)試工藝(a)-展示頁(yè)
2025-06-15 19:55本頁(yè)面
【正文】 ．9 Installation of RollupRoll Mechanisms2．9．1 Install the cog segement box for the Roll up Roll mechanism according to drawings BH410267011, The cog segement must be removed during the Installation. Align the box carefully in horizontal and vertical plane .the lifting pins (item 447)on the hatch cover panels shall be used as the reference point .For facilitating the installation of the cog segment box and the clevis bracket (item 438,439)for the control lever use of a template for making sure that the location from the pins on the hatch cover panels to the cog segement pin centers and further to control lever pin center is correct .2．9．2 Install the clevis bracket for the control lever in correct position in relation to the pin centers of the cog see that there is a tolerance given in the drawing for the position of the control lever pin .2．9．3 The amount of pression at the meeting joint seal can be adjusted by changing the length of the control lever. For the adjustment the end of the lever is attached to the lever by a threaded bar .2．9．4 When installing the control lever check the distance from the cog segment pin to the clevis bracket for the control lever (dimension A )Set the length so that dimension B=A450mm ,Tolerance for the control lever length is +0/3mm .Clearance between lifting pins and cog segment must be zero .2．9．5 .Test the operation of the cover and observe the amount of pression at the meeting joint seal. Adjust the pression as necessary for arriving at the at the specified figure .2．9．6 As a thumb rule half a turn on the control lever eye bolt (end of the control lever) corresponds to about 3mm in the seal pression . .NOTE： it is very important that there is no steel to steel contact between the hatch cover panels when reaching the end position in CL .This is because the control lever arrangement goes over the dead center position and the forces affecting the RollupRoll mechanism can be enormous in case of steel to steel contact between the hatch cover paneld .2．10．Marking of the cover skirt lineThe skirt line of the hatch cover shall be marked on top of the coaming,the joint between the panels is closed correctly and the location of the cover on the coaming is cover skirt line is used as base when marking the position of the tightening tightening bar shall press at the center of the rubber packing .2．11．Installation of Fittings2．11 .1 When mencing the installation work the cover shall be in the correct location on the coaming and rest on 15mm,thick steel liners located under side/end cross joint between the panels shall be in closed position . the pression at the rubber packing is acc. To specification .2．11 .2 If the weather is hot and sunny during installation,panels to be fastened with heavy bolts early in the moring to prevent panel bending of temperature difference between holt inside air and hot sunshine .Secure the panels against free rolling by suitable stoppers and necessary steps for making sure that safety in the work is maintained .2．11 .3 Install and tack weld the longitudinal locators on the coaming acc. to the counterparts on the cover .2．11 .4 Install the guide blocks () on the longitudinal coaming .2．11 .5 Measure and mark the distance between coaming top and rubber pzcking with 1metres intervals for later installation of pression bars (maintaining) the correct pression at the rubber packing all the way).For facilitating this measurement it is remended to use the punch marks provide on the end plates in the way of the packing holder bottom .2．11 .6 Measure the height between the mating plates of vertical supports at hatch cover and the coaming top for later installation of the Fzstopers (Steelpads) and mark the position on the coaming .2．11 .7 Determine the thickness of the adjusting platesat transversal coaming taking into consideration the height of the ste
公司管理相關(guān)推薦
鄂ICP備17016276號(hào)-1