Parker 3Z Series User Manual

WARNING
This product can expose you to chemicals including lead and DEHP, which are known to the State
of California to cause cancer, and birth defects or other reproductive harm. For more information
go to www.p65warnings.ca.gov
HY13-1597-01/US
3Z Motor Series
Service Procedure
Eective: September2020
3ZGLowSpeed,
HighTorque
HydraulicMotors

Parker 3Z Series Specifications

General

Brand	Parker
Model	3Z Series
Category	Engine
Language	English

Summary

3Z Motor Series Service Procedure

3ZG Low Speed, High Torque Hydraulic Motors

Overview of the Parker 3ZG hydraulic motor series for low speed, high torque applications.

Troubleshooting Guide

Troubleshooting Checklist

Disassembly and Inspection: Preparation

Preparation Before Disassembly

Disassembly and Inspection: Initial Steps

Disassembly and Inspection: End Cover Components

End Cover Component Removal

Detailed steps for removing the roll pin, O-rings, disc valve, balance plate, and timing plates.

Disassembly and Inspection: Stator and Drive Link

Stator and Drive Link Removal

Instructions for marking, removing the stator, roller vanes, O-ring, and drive link.

Disassembly and Inspection: Rotor and Drive Link

Rotor and Drive Link Removal

Procedures for removing the rotor, drive link, and output shaft bolts, including alignment marks.

Disassembly and Inspection: Output Shaft Cover

Output Shaft Cover and Seal Removal

Instructions for removing the output shaft cover, O-rings, shaft seal, and dust seal.

Assembly: Preparation

Assembly: Initial Steps

Initial Component Assembly

Instructions for reassembly starting with the dust seal, shaft seal, O-rings, and end cover.

Assembly: Endcover Bolting and Rotation

Output Shaft Endcover Bolting

Assembly: Rotor and Stator

Rotor and Stator Installation

Assembly: Drive Link and Plates

Drive Link and Plate Installation

Standard Rotation Procedure

Assembly: Rotation and Final Cover

Reverse Rotation and O-ring Installation

Roll Pin and End Cover Installation