Eaton 33 Parts & Repair Information

1
Table of Contents
Introduction ............................................................................................................................................................... 3
Required Tools for Disassembly/Reassembly ............................................................................................................ 3
Major Assemblies – Disassembly Order – ID Tag Information ................................................................................... 4
Exploded View Drawing – Charge Pump, End Cover ..................................................................................5
Exploded View Drawing – Rotating Group.................................................................................................. 6
Exploded View Drawing – Main Housing .................................................................................................... 7
Parts List ................................................................................................................................................................... 8-27
Main Housing ............................................................................................................................................. 11
Servo Piston Sub-Assembly ....................................................................................................................... 11
Swash Bearing Sub-Assembly ................................................................................................................... 11
Propel Valve Plate or V-Groove Plate.......................................................................................................... 12
Bearing Plate .............................................................................................................................................. 12
Drive Shaft Sub-Assembly ......................................................................................................................... 12
Rotating/Swash Plate Assembly ................................................................................................................. 13
Charge Pump Kit Assemblies ..................................................................................................................... 14-15
End Covers ................................................................................................................................................. 16
Control Valves ............................................................................................................................................ 17-25
Manual Control Valve (Kit) .................................................................................................................. 17
Manual Control Valve Wide Band (Kit) ................................................................................................ 17
Manual Control Valve with N/C Neutral Lockout & Potentiometer (Kit) ............................................... 18
Manual Control Valve with N/C Neutral Lockout (Kit) .......................................................................... 19
Manual Control Valve with Potentiometer (Kit) ...................................................................................20
Solenoid Control Valve, Speed Sensor & Mating Connector (Kits)...................................................... 21
(EP) Electronic Proportional Displacement Control (Kit) ..................................................................... 22
EP Control Solenoid Actuated Valve Assemblies,
EP Control PWM Module (Kits) ........................................................................................................... 23
(MUX) Multiplex Displacement Control (Kit) ....................................................................................... 24
Low Pressure Relief Valve (Kit) .................................................................................................................. 26
Shaft Seal (Kits) ......................................................................................................................................... 26
Shim Kit, End Cover Bearing ...................................................................................................................... 26
Hold Down (Kits) ........................................................................................................................................ 26
Overhaul Gasket (Kits) ............................................................................................................................... 27
Repair Information – Complete Disassembly............................................................................................................. 28-33
Repair Information – Complete Reassembly ............................................................................................................. 34-41
Troubleshooting ......................................................................................................................................................... 43
Gauge Requirements, Gauge Port Size and Location ................................................................................. 45
Pressure Readings ..................................................................................................................................... 46
Fault-Logic Troubleshooting ....................................................................................................................... 47-52
Hydraulic Fluid Requirements .................................................................................................................................... 53-54
Special Tools ............................................................................................................................................................. 55-57
Model Code Descriptions........................................................................................................................................... 58-59

Eaton 33 Specifications

General

Brand	Eaton
Model	33
Category	Water Pump
Language	English