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Rh the wheels rolled underneath, each pair being placed in position under the corresponding hornblocks. The axleboxes are placed on the journals and the engine lowered very slowly and carefully, a man being stationed by each wheel to guide the axleboxes into the spaces between the horns.

The springs, if of the type placed above the axleboxes, have already been put into position with the side links and pins in place, so that as the engine comes down the central spring pillars bear upon the axleboxes and the weight of the engine is gradually taken by the springs. The hornkeeps are then bolted into position. If the springs are “underhung,” they have to be put into place, after the engine has been lowered on to the wheels, by packing the axleboxes up at a convenient level and then slipping the pins for the links and spring buckles into their respective holes.

Motion Work. To put the connecting rods into place the small end straps and brasses are coupled to the crossheads on each side, and each big end with its brasses is put on to the crank pin journal of the driving axle. As these rods are very heavy, the large end of the rod is made to rest upon a timber baulk placed across the pit, and is then lifted by three men until the butt end slips into the open jaw of the strap, where it is secured by the bolts and cotter.

The eccentric rods and eccentric straps are then coupled up. The eccentric sheaves have already