PER TI (Continued) during thread cutting. If more than one cut is necessary then this should be applied with the rear tool slide handwhee1. Because of the angular action of the hydraulic slide a modified changewheel combination is required for each different taper. by the use of cylindrical templates an attachment is available specificaily designed to accommodate flat templates. The unit replaces the cylindrical template support heads and is damped to the tenoned block attached to the rear of the lathe bed. FLAT TEMPl.ATE ATTACHMENT (Fig.
8) (ADDITIONAL EQUIPMENT) Whilst the major proportion of profile turned work is accomplished c s Provision is made for accurate alignment of the template to the lathe axis and a graduated dial provides micro longitudinal adjustment. (2) Tool is not on centre height - particularly important on small diameter work. Discrepancies occurring between workpieces and template may be attributed to the following:- (3) Template and workpiece are not parallel - adjust by means of gra:luated eccentric sleeve in template support head. (r) Tool requires regrinding. (4) Gib strips on slides require adjusting.
MAINTE HYDRAULIC PUMP UNIT Recommended grades of hydraulic oil:- DTE Oil Heavy Medium Supplied by Mobil Oil Co. Ltd. or Tellus Oil 33 or Nuto - H44 or Hy-Spin A WS68 or Energol HL-IOO or Rando H.D.C. or Indoi! 31 or Harmony 53 or Sunoco Sunvis 831 or other equivalent grades. The oil container should be drained, cleaned and renewed with oil at six-monthly intervals, whilst the filter fitted to the inlet port of the pump should be cleaned at three-monthly intervals. A drain plug is fitted at the base of the container and after draining, the cover and pump urnt complete should be removed - by releasing the four screws at the corners of the cover.
The container is then available for easy cleansing. Supplied by Shell-Mex & B.P. Ltd. Supplied by Esso Petroleum Co. Ltd. Supplied by Castrol Ltd. Supplied by Shell-Me x & B.P. Ltd. Supplied by Regent Oil Co. Ltd. The working pressure registered on pressure gauge should read approximately ISO lb. per sq. inch, but if readings differ greatly from this figure then adjustment should be made to the relief valve which is inside the container. Supplied by Amoco Ltd. Supplied by Gulf Oil Ltd. Supplied by Sun Oil Company. Capacity of oil container approximately 3 gallons (13.6 litres). 25