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Engine sheds in the UK were equipped with sand drying stoves, so that sandboxes could be refilled each morning with dry sand. Steam locomotives in the US had a single sandbox, called a sand dome, atop the boiler where the rising heat helped to dry the sand. Even with this arrangement, sand pipes tended to clog, and by the 1880s, pneumatic ...
Sanding equipment on a ČD class 971 driving trailer. Sanding is one method of reducing wheel slip or slide. Locomotives and multiple units have sandboxes which can place dry sand on the rails, in front of the wheels. This may be initiated automatically when the Wheel Slide Protection system senses loss of adhesion, or the driver can operate it ...
Trouble-free locomotive running requires that there is sufficient traction between wheel and rail. Steam engines therefore had sandboxes (usually two, on top of the boiler). These were filled with the help of sanding equipment. For sanding there was either a sanding system with an elevated bunker or a sanding tower.
Electrical generator driven by a small steam turbine, for the headlight and other locomotive lighting. [3]: 29 Sand dome Holds sand that is directed on to the rail in front of the driving wheels to improve traction, especially in wet or icy conditions or when vegetation is on the line, and on steep gradients. [2] [5] [6]: 118 [3]: 68
To increase the adhesion and improve performance, PRR enlarged the sand dome on the S1. It ensured the supply of sand for steam sanding and slightly increased the axle load above the first and second set axle. The S1 was partially de-skirted in 1942 to improve the visibility of the reciprocating parts for the crews and better operation. [25]
Tube cleaning is the process whereby the boiler tubes of steam locomotives are cleaned out, removing soot and ash in order to ensure the effective generation of the draught for the fire. This was often done with steam lances or compressed air and accompanied by brushing as required.
Two more locomotives had arrived by the end of 1854, and the order was complete by summer 1855. Four more passenger locomotives were ordered in 1857, [6] and weatherboards and sanding equipment were fitted by 1860.
In mid-to-late 2019, a number of West Midlands Trains' Class 323 units were used for an in-service pilot test of retrofitted Double Variable-Rate Sanders, sponsored by the Rail Safety and Standards Board. The test demonstrated that the new sanding equipment significantly improved braking performance in low-adhesion conditions. [32]