Overhaul Manual Vickers® Transmissions Adjustable Speed Hydraulic Drives TR3, PTR3 and MTR3 Series -20 Design Revised 9/1/87 I-1820-S
EEaton Hydraulics, Incorporated 2000 All Rights Reserved 2
Table of Contents Section Page I. Operating Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 II. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A. Mounting Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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) Operating Fluid: Type . . . . . . . . Use petroleum oil SAE 20-20W API, MS. Type “A” automatic transmission oil is also permissible. Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model Codes Transmission 1 1 Adjustable Speed Drive Units 2 Nominal – 3/4 HP (at 1200 rpm) 3 “A” End (Pump) Control H – Handwheel D – Servo V – None 2 4 5 3 4 5 6 7 8 “A” End Control Location (viewed from output end) R – Right hand L – Left hand 6 “B” Fixed End Control F – Fixed 7 “B” End Control 13 – 13/32 Cylinder Bore 8 Design 5 Design 5 Size 13 – 13/32 Cylinder Bore 6 Design “A” End Size 13 – 13/32 Cylinder Bore Motor 1 1 Motors 2 Series – 3/4 HP 2 3 4 3 Control
Improved Valve Block Eliminates Valve Plate Needle Bearings Replace Bushing Heavier Snap Ring Improved Cylinder Block Fan Secured by Set Screws Heavier Snap Ring Pump End (A) Motor End (B) Improved Seal Improved 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.
III – Operation A. Fluid Recommendations The dial calibrations (0, 25, 50, 75 and 100) represent the 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”. Type “A” automatic transmission fluid is also permissible. D. Servo Control Drain and refil the unit with new fluid every 1000 hours of operation or six months, whchever comes first.
Section V – Warranty We warrant the articles to be free from defects in material or workmanship under recommended use and service.
