Saving Valuable Time on Maintenance
Page 36
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L'OR the average road transport
operator, an immobilized vehicle means a serious loss in earning power, and speed in repairs and. overhauls is vital. The problem of combining speed with efficiency can be solved only by using up-to-date mechanical methods and equipment.
Modern engines demand first-class workmanship in maintenance to keep their efficiency. Valves and seatingi have become a greater problem with the high-speed engine and it is necessary that a perfect seating should always be maintained.
The Wolf E.V.G.3 high-speed valveseat grinder, made by S. Wolf and Co., Ltd., Pioneer Works, Ealing, London, W.5, is capable of regrinding any seating up to 3 ins. diameter. A polished seating can be cut in a short time.
Coupled with the seat grinder is the valve refacer. which is fitted with attachments for refacing rocker arms, tappet faces and valve stems. For Ford operators a special depth gauge and micrometer attachments are available, so that the job is not only B26 speeded up. but is reduced to toolroom accuracy. Many hours can be saved on every top overhaul by using the valve refacer and valve-seat grinder in place of the original hand methods.
For general workshop use a bench grinder is essential. The Wolf T.Ci.8 is made in three forms, as a grinder, as a grinder and polisher, or as a polisher alone.
The flexible shaft grinder is another appliance which is valuable when removing metal from parts that are not readily accessible. In many cases the use of this grinder avoids the need for dismantling units, which would norm ally have to be moved to allow hand tools to be operated. The Wolf F.F.2 model has a two-speed arrangement, which enables it to be used as a highspeed abrasive tool or, when fitted with a rotary cutter, as a means for dressing softer metals. This machine can be supplied with a variety of attachments.
Another appliance of this type is the 7-in, portable electric sander. This machine is primarily used for removing nist, paint or surplus welding material from coachwork, but, with a wire brush or felt mop fitted, it can be employed as a polisher-'