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Lubrication Fittings & Accessories - Major Furnace Australia ...

Lubrication Fittings & Accessories - Major Furnace Australia ...

Lubrication Fittings & AccessoriesDesign TipsFitting Installation and Removal ToolsModel 11485For use to install straight drive type fittings into untapped holes.Model 11509For use to install angle drive type fittings into untapped holes.Easy Out ToolCombination tool for removing worn or broken fittings and retapping holes for newfitting installation, two models available:Model 66953For tapping ¹⁄₄" -28 threads and removal of both ³⁄₈" and ⁵⁄₁₆" Hex, straight orangle fittings.Model 90776For tapping ¹⁄₈" NPT threads and removal of both ⁷⁄₁₆" Hex, straight or angle fittings.Depth of EngagementWhen selecting a lubrication fitting, either straight, angle, standard thread, spin drive,or straight drive, be sure to measure engagement depth “A,” taking manufacturing toleranceinto consideration. Then select fitting with thread length or drive shank lengththat will not penetrate bearing material or rest against rotating member.Turning RadiusThe turning radius is given for all angle fittings shown in this manual. Be sure that thisis taken into consideration during initial machine design and then select a fitting witha turning radius that will permit easy production line installation.Deep Set FittingsDeep set fittings are sometimes necessary in machine design. When required, makesure sufficient clearance is provided for easy disengagement of hydraulic coupler.Angularity of ContactLincoln hydraulic couplers and fittings are designed to provide a hydraulic seal at anycoupler angle up to 15°. Movement beyond this angle will cause coupler to disengage.13

Lubrication Fittings & AccessoriesDesign TipsDetermination of Pipe Thread SizesNominal PipeThread SizeDrill Size SelectionThreadsPer InchMajor Dia.B or Cin./mmFitting Thread Tap Drill Selection for Drill Size Selection forSize Standard Thread Fitting Spin Drive Fittings¹⁄₄" -28 #3 (for soft metal, use #5) “A” - .234"/ 5.9mm Dia. *⁵⁄₁₆" -32 ⁹⁄₃₂"/7.1mm (for soft metal, use ”J”) —¹⁄₈" Pipe ¹¹⁄₃₂"/8.7mm (for soft metal, use ”R”) ³⁄₈ -.375"/ 9.5mm Dia. *¹⁄₄" Pipe ⁷⁄₁₆" / 11.1mm —* Drill sizes given are nominal and may vary with different types of material. For maximum effectiveness, test applications should beconducted using the type of material into which the fitting is to be installed (steel, cast iron, brass, aluminum, etc.). Productiontolerances of hole must be taken into consideration when conducting test.Lubrication Fitting Thread SymbolsNominal EngagementFor Tight Joint Ain./mm¹⁄₈" 27 .405 / 10.3 ¹⁄₄ / 6.4¹⁄₄" 18 .540 / 13.7 ³⁄₈ / 9.5³⁄₈" 18 .675 / 17.1 ³⁄₈ / 9.5¹⁄₂" 14 .840 / 21.3 ¹⁄₂ / 12.7³⁄₄" 14 1.050 / 26.7 ⁹⁄₁₆ / 14.31" 11¹⁄₂ 1.315 / 33.4 ¹¹⁄₁₆ / 17.5The identification symbols and their meaning which have been adopted for thevarious threads used in the manufacture of lubrication fittings are given below:SymbolNPTNPTFPTFPTF SpecialShortPTF SpecialExtra ShortNPSFNPSINPSM¹⁄₄" -28 TaperThread (SAE-LT)¹⁄₄" -28 SpecialTaper Drive Thread¹⁄₈" Pipe SpecialTaper Drive ThreadMeaningAmerican Standard Taper Pipe ThreadDryseal American Standard Taper Pipe ThreadSame as NPTF except full thread length has been shortened by one threadon small end of thread—also designated as PTF—SAE ShortSame as PTF Short except one full thread has been shortened from largeend of threadSame as PTF Short except two full threads have been shortened from largeend of threadDryseal American Fuel Internal Straight Pipe ThreadDryseal American Intermediate Internal Straight Pipe ThreadAmerican Standard Straight Mechanical Pipe ThreadThread has a ³⁄₄" taper per foot and a pitch diameter of .2257/.2224 atsmall end. The mating tapped hole is ¹⁄₄" -28 UNF 3B straight thread.Tap drill must not exceed .215" diameter.Thread Forming-Forms thread in mating part during installation—whenremoved can be replaced by standard ¹⁄₄" -28 taper thread (SAE-LT) fitting.Thread Forming-Forms thread in mating part during installation—whenremoved can be replaced by standard ¹⁄₈" -27 PTF series fitting.Symbol Designation Symbol DesignationN American Standard S StraightP Pipe M MechanicalT Taper I IntermediateF Fuel LT Lubrication Thread14

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