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®
Vickers
Overhaul Manual
Transmissions
Adjustable Speed Hydraulic Drives
TR3, PTR3 and MTR3
Series -20 Design
Revised 9/1/87 I-1820-S
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Eaton Hydraulics, Incorporated 2000 All Rights Reserved 2
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Table of Contents Section Page I. Operating Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 II. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 A. Mounting Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Section I – Operating Characteristics “A” End . . . . . . . . . . . . . . . 9-cylinder, variable delivery axial Pump Delivery: piston type pump 1800 rpm and 500 psi . . . . . . . . . . . . . . . . . . . . . . 4.7 gpm 1200 rpm and 500 psi . . . . . . . . . . . . . . . . . . . . . . 3.1 gpm “B” End . . . . . . . . . . . . 9-cylinder, fixed displacement axial piston type motor Horsepower Ratings: Maximum input . . . . . . . . . . . . . . . . . . . 1.50 @ 1800 rpm Port Connections Ma
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Model Codes Transmission 1 2 346 5 7 8 1 4 “A” End Control Location 6 Adjustable Speed Drive Units “B” Fixed End Control (viewed from output end) F – Fixed R – Right hand 2 Nominal – 3/4 HP (at 1200 rpm) L – Left hand 7 “B” End Control 13 – 13/32 Cylinder Bore 5 “A” End Size 3 “A” End (Pump) Control 13 – 13/32 Cylinder Bore H – Handwheel Design 8 D – Servo V – None Motor 1 2 3 4 5 1 Motors 3 Control 5 Design F – Fixed 2 Series – 3/4 HP 4 Size 13 – 13/32 Cylinder Bore Pump 1 2 3 4 5 6 Size 1 Pump
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Improved Valve Block Needle Bearings Eliminates Valve Plate Replace Bushing Heavier Snap Ring Improved Cylinder Block Fan Secured by Set Screws Heavier Snap Ring Pump Motor End End (A) (B) Improved Improved Seal Seal Improved Draw Bolt Design New Heavier Mounting Motor Pump Figure 1 F. Load The maximum load which may be driven by these units is 3/4 horsepower. The 40 inch pounds of torque output will equal more than 3/4 horsepower at 1800 rpm, and must be considered available for starting o
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III – Operation The dial calibrations (0, 25, 50, 75 and 100) represent the A. Fluid Recommendations output shaft speed as a percentage of the input shaft speed. Use clean petroleum oil meeting or exceeding lubricating qualities of SAE 20-20 W API service classification “MS”. D. Servo Control Type “A” automatic transmission fluid is also permissible. The servo control is a mechanically operated hydraulic Drain and refil the unit with new fluid every 1000 hours of booster for varying the outpu
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Section V – Warranty We warrant the articles to be free from defects in material or period of 90 days from the date the article is placed in workmanship under recommended use and service. Our service or a period of 180 days from the date the article is obligation under this warranty, however, is limited to repairing delivered by us, whichever period first expires. Unless or replacing at our Omaha, Nebraska plant, any part, which otherwise stated on the face of our quotation or agreed by us in o
