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Wessex Electrics: Exterior Details

MBLS Underfloor Equipment
Equipment groups left to right are rear of air-conditioning unit, circuit breakers, camshafts and switchgear

The underframes of the trailer cars are basically as for any Mk3 coach but the MBLS underframe carries the traction equipment.  Both sides of an MBLS are illustrated here.  Above on unit 2404 car 62939, the equipment groups left to right are rear of air-conditioning unit, circuit breakers, camshafts and switchgear.

Below on unit 2402 car 62938, the equipment groups left to right are weak field resistances, EP brake unit, starting resistances, auxiliary equipment case and air-conditioning unit.
Equipment groups left to right are weak field resistances, EP brake unit, starting resistances, auxiliary equipment case and air-conditioning unit


Bogies
Motor bogie

The MBLS has two motor bogies providing four traction motors - the motors being recycled from 4 Rep units.  This is clearly one of the motor bogies of unit 2402.
Unpowered bogie with shoebeam

A trailer bogie with shoebeam and pickup shoe.  Pickups are fitted to the 1st, 4th, 7th and 10th bogies in the formation, that is to the bogies under both driving cabs and on the bogies of the TS and TSW next to the MBLS.
Unpowered bogie

A trailer bogie without pickup. This can positively be identified as the inner bogie of the DTFo of unit 2402.


low level connections air-conditioning plant

(above left) A full set of ETS jumpers and sockets are fitted at low level
(above right) the original air-conditioning unit, fitted with the then novel heat pump.

photographs by Ian Buck

 






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Last updated on 29th May 2010 by Ashley Frost.
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