HINTS ON MAINTENANCE.
Page 30
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How to Get the Best Out of a Vehicle, to Secure Reliability and to Avoid Trouble.
542.—How Slack Bushes May be Tightened in Their Housings.
It sometimes occurs that when a new bush has been supplied to replace a worn one it is not a tight fit in its housing. This is somewhat annoying, particularly if a rush job is in hand, and it is quite use less to insert it without rectifying the error in some manner, as it will probably turn in its housing and cause further wear, or even worse damage.
In such cases the hush may be tightened by punching small notches in the housing before the bush is inserted and, providing the slackness is not too great, the bush will then be quite secure.
In the example shown, the notches are being punched in the oil-retaining disc on the front universal joint on a Guy chassis.
543.—Avoiding Breakage of Cylinder Flanges on the Tylor Engine.
A trouble sometimes experienced with the Tylor engine is breakage of the flanges by which the cylinders are held down to the crankcase, it appears to be due to uneven stressing of the flanges, caused by the give in the packing washers which are usually fitted, and we are informed that it may be avoided by using as packing an aluminium plate about 3-32 in. thick, with thin brown paper covered with gold size or shellac varnish fitted at each side of the plate to provide an oil-tight joint.
The nuts should be tightened down evenly, a little at a time, and run over once a month to make certain that none is working loose.
544.— Preserving Leather Coupling Joints on the Crossley Tender.
Leather coupling joints of the type used on the 1t.F.C. model Crossley and other vehicles, between clutch and gearbox, should be dressed with castor oil at least once a month.
If this be not attended to the leather gets dry and hard, with the result that the bolt holes will tear through and render the joints useless. At the same time care should be taken to see that B46 the bolts holding the leather to the spiders are tight and split-pinned. Magneto-drive couplings of the same type should also be dressed occasionally with castor oil. On the Crossley chassis the greasers for rearspring platforms and for rear-brake camshafts deserve more attention than they usually get.
545.—Curing a Trouble with a Napier Fan.
The fan of a certain 3k-ton Napier developed the habit of striking the belt in turning 3 this was caused by wear loosening the fan on its spindle, consequently It sagged at the pulley end and allowed the blades to touch the belt, which runs rather close to them on this vehicle.
There was little room between the radiator and the fan, so that it was not possible to corredt the trouble by bending the blades and the obvious cure by taking up the wear in the proper 'manner could not be utilized at the time. However, an effective and simple remedy was found by loosening the main standard, whore it was bolted to the chassis, and inserting a strip of leather of suitable thickness at the side next the belt.
546.— Removing-the Brake Shoe Springs on the A.E.C.
The removal of the internal-expanding brake shoes in the rear wheels of the Y.B.-type A..E.C. vehicle sometithes proves an awkward task. With the tool illustrated, however, the spring is gripped near its hook between the two jaws, which are held together by a bolt.
The fin. Whitworth thread cut in the jaws will prevent slipping, and byusing as a fulcrum a bar leaning at an angle from the axle to the ground, the spring can easily 1Je levered out.