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
2
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.
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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
2
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.
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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
4
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Troubleshooting Checklist
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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
6
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
Table des matières
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