NEW EQUIPMENT
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AN ACCURACY within 1.5 per cent is claimed for the Tyremaster tyre inflator introduced by the Wymark Co. The pressure in the tyre is measured by the height of a column of mercury connected to the inflation hose.
A feature of the Tyremaster is that it has an easily read double scale showing pressure in both p.s.i. and kg/cm2 and the scale can be illuminated by an internal fluorescent tube for use at night. The Tyremaster has twin air lines —two tyres can be checked at the same time —and in addition to the standard pillar model, a smaller version for wall fixing and a portable model weighing only 111b are available. Marketed by: The Wymark Co., Knapp House, Witcombe, Gloucestershire.
Toggle switch
THE TS/1 toggle switch now manufactured by Rendar Instruments Ltd. is designed as a medium price, single-pole changeover switch which combines high performance with small size and good reliability.
Tests are said to have proved an operational life of over 30,000 cycles at 24V d.c. at 3amps and the TS/1 is also suitable for use at 250V a.c. mains voltage with a maximum current of 1.5amps. The switch is suitable for vehicle control panels; the body is 0.375in. diameter and lin. depth is required behind the panel.
Made by: Rendar Instruments Ltd., Victoria Road, Burgess Hill, Sussex.
Injector removal
A QUICK and effective method of removing diesel engine injectors is provided by the No. 885-X Diesel Injector Removal Set from J. F. Sykes (St. Annes) Ltd. The slidehammer-puller principle is used—a threaded adapter is screwed on the injector and then the pulling unit attached. Several blows with the sliding weight against the head of the shaft are normally enough to withdraw even the most stubborn injector.
As well as the 885-X, Sykes offers the 885 with three adapters only—the most common used—as against six in the 885-X.
Made by: J. F. Sykes (St. Annes) Ltd., Warwick Works, Kilnhouse Land, St. Anne's-on-Sea, Lancs.
Prices: No.885, £4 16s; No. 885-X, £6 12s.
For pendant mounting
AUXILIARY LAMPS for inverted fitting beneath the bumper have been introduced by Bosch Ltd.
One is a driving lamp with clear lens only, the other a fog lamp which comes with a clear or amber lens. Both have a halogen bulb.
Made by: Bosch Ltd., 20 Carlisle Road, London, NVV9.
Price: £5 19s bd each type. A HEAVY-DUTY air cleaner known as the AC Cyclone has been introduced by ACDelco. It has been specially designed for equipment operating in particularly dusty conditions and features a centrifugal precleaner, an automatic dust unloader and a high-efficiency impregnated paper filtering element.
Principal advantages of the Cyclone compared with conventional oil-bath types are said to be greater compactness, higher efficiency (over 99.9 per cent), increased capacity, easier maintenance and reduced servicing. A range is available covering airflow ratings from 90 to 500 cu. ft. per minute.
Air is drawn into the cleaner through a tangential inlet tube at one end of the cylindrical body and a circular flow is set up around the paper element. Over 90 per cent of dust particles carried in the air are removed by a centrifugal action and collected in a dust chamber at the outlet end of the cleaner. Below the dust chamber is an automatic dust unloader with rubber lips which are kept closed by the partial vacuum within the cleaner until a sufficient weight of dust accumulates to open the lips and discharge the load.
The partially cleaned air then passes through an Airac impregnated paper element which removes the remaining dust particles. The centrifugal action which is positive even at low air-intake speeds ensures a greatly extended service life for the filter element coupled with longer periods between maintenance attention.
The element can be easily removed for cleaning or replacement. Under normal conditions the element will need cleaning every 150 hours either by tapping the element to dislodge the dust or by reverse blowing with low-pressure compressed air. Elements which accumulate oily or sooty deposits may be partially restored by washing in a nonfoaming detergent solution. Depending on the operating conditions the filter element will require complete replacement after a maximum of 1,500 hours use or after 10 to 12 detergent washes.
Made by: AC-Delco Division of General Motors Ltd., Dunstable, Beds.