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58 SCAMMELL

20th September 1968, Page 134
20th September 1968
Page 134
Page 137
Page 134, 20th September 1968 — 58 SCAMMELL
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Scammell Lorries Ltd., Watford West, Watford, Herts.

TWO of the Scammell exhibits are new designs while a third started off as a special model for BRS and is now being offered generally. Completing the display there is a Contractor 6 x 4 tractor.

More important of the two new models is the Crusader 6 x 4 tractive unit which has been specially designed to suit impending

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up-rating of gross train weights in the UK. The model is suitable for operation at up to 42 tons gross combination weight and the exhibit has the highest-output engine of any normal-haulage vehicle at Earls Court. This is a General Motors supercharged two-stroke V8 diesel with an output of 290 bhp gross (SAE) at 2,100 rpm. An alternative engine is a Cummins V8, 300 bhp unit and in both cases the drive is through a Fuller 15-speed gearbox.

Even with the big engine, the chassis /cab weight of the Crusader is not much more than 6.5 tons and it is planned to offer the AEC 250 bhp V8 with a 10-speed transmission on the British market. This would bring the weight down to a very reasonable figure for a model suitable for this sort of weight.

The cab on the Crusader is from Motor Panels and is set high on the frame to reduce the engine-cover intrusion and interesting components in the electrical system are contact breakers instead of fuses for protection of the various circuits. The rear bogie of the Crusader consists of a pair of hub reduction axles with a two-spring suspension.

A similar suspension is used on the new version of the Routeman eight-wheeler, this being the first time the model has been offered with double drive. The 8 x 4 has been developed for tipper use with a wheelbase of 14ft 4in. and dimension from the rear of the cab to the end of the frame of 18ft 2.125in. The outer axle spread dimension limits gross weight to 24 tons but the model is plated for 26 tons and this gives some allowance to operators for uneven loading. Except for the new bogie which is a Scammell version of a layout used by other British Leyland companies, the chassis is little different to the single-drive Routeman. The engine is a Leyland 0.680 derated to give 185 bhp at 2,100 rpm and the transmission is through a six-speed overdrive gearbox.

The new version of the Handyman 32 tons g.c.w. tractive unit has the same Leyland 0.680, 200 bhp diesel as before but the drive is through an AEC six-speed overdrive gearbox as in the Routeman double-drive model and the rear axle is a Leyland hub-reduction unit. Other changes are lock actuators for parking purposes and the rear springs have slipper rear ends to reduce maintenance and give a degree of variable rate. Front brake size has been increased from 4.5in. to 6in. and a Burman variable-ratio steering box is now standard.

The Scammell Contractor 6 x 4 tractor has left-hand steering and this normal-control chassis has an AEC AV 1100, 17.6 litre diesel which has an output of 289 bhp at 1,900 rpm. The chassis has a semi-automatic eight-speed gearbox while the double-drive rear bogie has hub-reduction axles! The chassis can carry 40 tons and can be used at a gross combination weight of 200 tons,

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Organisations: Earls Court

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