Parker 716 Series Manuel utilisateur

Low Speed

High Torque

Hydraulic Motors

716 Series

Service Manual SM1532

Parker Motors

Effective: January 1, 1996

Parker Hannifin Corp.

Hydraulic Pump/Motor Div.

Greeneville, TN 37745 USA

Definitions

WARNING: A

WARNING

refers to procedures that must be followed for the

safety of the equipment operator and the person inspecting or

repairing the motor.

CAUTION: A

CAUTION

refers to a mandatory procedure which avoids damage

to the motor or other system components.

NOTE: A

NOTE

provides key information to make a procedure easier or

quicker to complete.

WARNING

FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS AND/OR

SYSTEMS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE DEATH, PERSONAL

INJURY, AND PROPERTY DAMAGE.

This document and other information from Parker Hannifin Corp., its subsidiaries and authorized

distributors provide product and/or system options for further investigation by users having

technical expertise. It is important that you analyze all aspects of your application and review the

information concerning the product or system in the current product catalog. Due to the variety

of operating conditions and applications for these products or systems, the user, through its own

analysis and testing, is solely responsible for making the final selection of the products and

systems and assuring that all performance, safety and warning requirements of the application

are met.

The products described herein, including without limitation, product features, specifications,

designs, availability, and pricing are subject to change by Parker Hannifin Corp. and its subsid-

iaries at any time without notice.

DG 6/96 7500

Parker Hannifin Corporation

Hydraulic Pump/Motor Division

2745 Snapps Ferry Road

Greeneville, TN 37745 USA

Tel. (423) 639-8151

FAX (423) 787-2418

Parker Hannifin Corp.

Hydraulic Pump/Motor Div.

Greeneville, TN 37745 USA 1

Section 1 General Information Page

Definitions .............................................................................Inside Front Cover

Introduction...................................................................................................... 2

Troubleshooting Guide .................................................................................... 3

Troubleshooting Check List ............................................................................. 4

Tools and Material Required for Servicing & Seal Kit Components .................. 5

Service Parts List............................................................................................. 6

Exploded Assembly View.............................................................................. 7-9

Section 2 Repair

Disassembly & Inspection......................................................................... 10-15

Assembly.................................................................................................. 16-21

Solenoid Assembly .........................................................................................22

Final Checks...................................................................................................23

Section 3 Maintenence

Hydraulic Fluids ..............................................................................................23

Filtration, Operating Temperature ...................................................................23

Tips for Maintaining the system ......................................................................24

CONTENTS

Parker Hannifin Corp.

Hydraulic Pump/Motor Div.

Greeneville, TN 37745 USA

Introduction

Service Manual for Series 716 Two Speed High Torque Motor

This service manual has one purpose: to guide you in maintaining, troubleshooting,

and servicing the 716 Two Speed High Torque Motor. These motors provide long

life while operating with low radial side loads.

Read the trouble shooting information to eliminate non-hydraulic causes and

hydraulic system problems. The check list identifies hydraulic system and possible

motor component problems.

The two column format of the Disassembly and Inspection, and Assembly sections

make it easier to conduct major work on the motor. Column one explains the

procedure in detail. Column two illustrates this procedure with photographs. Read

all material carefully and pay special attention to the notes, cautions, and warnings.

The component part names and item numbers assigned on the exploded assembly

views corresponds with names and item numbers (in parentheses) used in the

disassembly and assembly procedures.

Service part number charts display exploded view item numbers and part numbers.

Obtain service parts from the Original Equipment Manufacturer or your local Parker

distributor.

We welcome suggestions to make this manual clearer or more complete. If you are

stuck, contact Parker Hannifin Corp. at the Hydraulic Pump/Motor Division. Don’t

second guess the manual. Following this safe and productive procedure results in

restoring the reliable long-life operation engineered into the motor.

Parker Hannifin Corp.

Hydraulic Pump/Motor Div.

Greeneville, TN 37745 USA 3

NOTE: Before troubleshooting any system problem, check service literature published by

the equipment and/or component manufacturers. Follow their instructions, if given,

for checking any component other than the motor unit.

Troubleshooting Guide

Preliminary Checks

Hydraulic systems are often trouble free. Therefore

check the following easy to check items first, such as:

•Parts damaged from impact that were not properly

repaired, or that should have been replaced.

•Improper replacement parts used in previous

servicing.

•Mechanical linkage problems such as binding,

broken parts or chain , loose parts, or slipping

belts.

Hydraulic Components

If the motor has low speed or torque, look at the check

list on the next page first. Since these motors main-

tain volumetric and torque efficiencies during their

useful life, the problem is usually elsewhere in the

hydraulic system.

However, there are hydraulic system problems which

can drastically reduce the long life designed into these

motors. Three key areas to check are:

•Temperature: Do not exceed 180°F.

•Fluid: Viscosity at the maximum temperature must

exceed 50 ssu.

•Filtration: A Beta 25 ratio of at least 2.

Preparation

Make your troubleshooting easier by preparing as follows:

•Work in a clean, well lighted area.

•Have proper tools and materials nearby.

•Have an adequate supply of clean petroleum - based

solvent.

•Prior to any motor disassembly, plug the open ports

and case drain.

•Clean all dirt from the outside of the motor.

•Prior to assembly lightly oil all seals, rollers, rolls and

the threaded bolt ends.

WARNING: Since solvents are flammable, be

extremely careful when using any

solvent, even a small explosion or

fire could cause injury or death.

WARNING: Wear eye protection and comply

with OSHA and other maximum air

pressure requirements.

Parker Hannifin Corp.

Hydraulic Pump/Motor Div.

Greeneville, TN 37745 USA

Troubleshooting Checklist

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5HOLHIYDOYHVHWLQFRUUHFWO\ 5HVHWUHOLHIORRNIRUFRQWDPLQDWLRQ

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CAUTION: Seals in the system will shrink, harden or crack if fluid temperatures exceed 180°F

(82.2°C), resulting in loss of ability to seal.

Parker Hannifin Corp.

Hydraulic Pump/Motor Div.

Greeneville, TN 37745 USA 5

Tools and Materials Required to Service the 716 Series

•Clean, petroleum-based solvent

•Emery paper

•Vise with soft jaws

•Air pressure source

•Screwdriver

•Tape

•Breaker bar or impact wrench

•Torque wrench 50 ft. lbs

•Socket 1/2 inch

• 1/4 inch Allen wrench

• Adjustable crescent wrench or hose fitting wrenches

Service Tools & Materials, Seal Kit

Seal Kit Seal Kit-Complete: 2550

Includes; P/N Qty Description

1046 6 Body O-Rings

1141 1 Dust Seal

2332 1 High Pressure Seal

032841 5 Solenoid Block O-Rings

1156 1 Bearing

Parker Hannifin Corp.

Hydraulic Pump/Motor Div.

Greeneville, TN 37745 USA

Item # Qty Part Number Description

1 8 See Below Bolts

2 1 M110C-6 4 Dowel End Cover (standard)

3 6 1046 O-Rings

4 1 See Below IGRTM Set, Rear (2904-X)

5 2 1660 Clip

6 1 See Below Shaft

7 2 1865 Commutator Plate

8 4 1021 Check Ball

9 1 PA-2534 (7/8-14 O-Ring, Pilot Act.) Center Block

PA-2535 (7/8-14 O-Ring, Solenoid)

PA-3106 (BSPP, Pilot Act.)

PA-3111 (BSPP, Solenoid)

PA-2817 (Manifold, Pilot Act.)

10 1 PA-2532-2 (1/4-19 BSPP) Front Bearing Housing/Flange

1 PA-2532-1 (7/16-20 O-Ring)

11 1 1825 (open center) Valve

1 2792 (closed center)

12 2 75013-10 Plug, Spool Port

13 1 1826 Spring

14 1 1156 Bearing

15 4 1320 Check Balls-Solenoid Block

16 5 032841 O-Rings-Solenoid Block

17 1 See Below IGRTM Set, Front (2917-X)

18 1 1824 (with manual override) Solenoid

2891 (without manual override)

19 2 021442 Bolt, Hex

20 1 1141 Seal, Dust

21 1 2332 Seal, High Pressure

25 1 1823 Solenoid Block

Motor Item 6 Item 17 Item 4 Item 1

Disp. Shaft IGRTM Set IGRTM Set Hex Bolt

3.6/7.2 2216-072 2917-1 2904-1 021363

5.4/10.8 2216-108 2917-2 2904-2 021428

7.1/14.2 2216-142 2917-3 2904-3 021356

8.8/17.6 2216-176 2917-4 2904-4 021306

10.6/21.2 2216-212 2917-5 2904-5 021382

12.9/25.8 2216-258 2917-6 2904-6 021437

716 Series Service Parts List

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