Helac L20 Series - Introduction Table of Contents; Table of Contents

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Parker Hannifin Corporation
Helac/Cylinder Division
Enumclaw, Washington USA
www.helac.com
Helical, Hydraulic Rotary Actuators
L20 Series Service & Repair Manual
Catalog HY34-1120
Table of Contents
Table of Contents
Introduction
Table of Contents ..................................................................................................................................................... 2
Product Introduction................................................................................................................................................. 3
General Safety Guidelines ....................................................................................................................................... 3
Product Identication ............................................................................................................................................... 4
Operation Technology .............................................................................................................................................. 5
Tools
Tools Required ......................................................................................................................................................... 6
Drawings
Spare Parts .............................................................................................................................................................. 7
Assembly Drawing ................................................................................................................................................... 8
Exploded View ......................................................................................................................................................... 9
Parts List .................................................................................................................................................................. 10
Disassembly
Before Disassembly ................................................................................................................................................. 11
Disassembly ............................................................................................................................................................ 11
Inspection ................................................................................................................................................................ 16
Assembly
Assembly ................................................................................................................................................................ 17
Post Assembly
Grease Thrust Washers ........................................................................................................................................... 22
Testing the Actuator ................................................................................................................................................. 23
Installation and Bleeding.......................................................................................................................................... 24
Troubleshooting Guide ........................................................................................................................................... 25
Warranty Information
............................................................................................................................................... 26