I-1820-s revised 9/1/87 adjustable speed hydraulic drives tr3, ptr3 and mtr3 series -20 design overhaul manual vickers ® transmissions.
2 e eaton hydraulics, incorporated 2000 all rights reserved.
3 table of contents section page i. Operating characteristics 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ii. Installation 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
4 section i – operating characteristics “a” end 9-cylinder, variable delivery axial . . . . . . . . . . . . . . . Piston type pump “b” end 9-cylinder, fixed displacement axial . . . . . . . . . . . . Piston type motor port connections (mtr3 & ptr3) and10050-8 (3/4-16) . . . . . . . . . . . . . . . ....
5 model codes control f – fixed control h – handwheel d – servo v – none “a” end control location (viewed from output end) r – right hand l – left hand 1 3 4 6 8 7 1 2 2 3 6 7 adjustable speed drive units nominal – 3/4 hp (at 1200 rpm) “a” end (pump) control h – handwheel d – servo v – none “b” end ...
6 figure 1 needle bearings replace bushing improved cylinder block motor end (b) heavier snap ring improved valve block eliminates valve plate motor heavier snap ring fan secured by set screws pump end (a) improved seal improved draw bolt design pump improved seal new heavier mounting figure 2 stand...
7 iii – operation a. Fluid recommendations use clean petroleum oil meeting or exceeding lubricating qualities of sae 20-20 w api service classification “ms”. Type “a” automatic transmission fluid is also permissible. Drain and refil the unit with new fluid every 1000 hours of operation or six months...
8 section v – warranty we warrant the articles to be free from defects in material or workmanship under recommended use and service. Our obligation under this warranty, however, is limited to repairing or replacing at our omaha, nebraska plant, any part, which in our judgment upon inspection, is def...
