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keeping them running
Page 133
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by Trevor Longcroft From Shell-Mex and BP's Mr F. K. Farquharson I learn of a time-saving approach to the task of chassis straightening: in effect, a Scammell Trunker tractive unit was repaired with only those parts being disconnected which were in the way of the sidemembers' removal.
The damaged cab was removed for subsequent repair elsewhere. A jack crane and a low jack were used, both to support the combined weight and also to preserve the balance of the engine and gearbox. Trestles were placed under the chassis members to allow the suspension, complete with axles, to be disconnected and the brake lines and electrical wiring unclipped from the chassis. The various cross-members were then unbolted thus freeing the side
members for straightening. After realignment of the chassis members it was necessary only to replace them in position, attach the cross-members and reassemble.
Mr Farquharson, who is manager, road equipment branch, 4road transport division, points out that this type of chassis frame lends itself to such a method by virtue of its crossmembers being bolted to the side-members: with rivets a complete strip-out would be necessary.
By applying thought and drawing on previous experience, engineers at the company's Fulham workshop completed the repair with a substantial saving of both time, and therefore cost, over methods normally used.