JCB Hydraulic Breakers HM012T – HM380T Service Repair Manual – PDF Download

Description

JCB Hydraulic Breakers HM012T – HM380T Service Repair Manual

Description:

JCB Hydraulic Breakers HM012T – HM380T Service Repair Manual

• All machinery can be hazardous. When a machine is correctly operated and properly maintained, it is a safe machine to work with. But when it is carelessly operated or poorly maintained it can become a danger to you (the operator) and others.
• In this manual and on the machine you will find warning messages. Read and understand them. They tell you of potential hazards and how to avoid them.
• If you do not fully understand the warning messages, ask your employer or JCB distributor to explain them. But safety is not just a matter of responding to the warnings.
• All the time you are working on or with the machine you must be thinking what hazards there might be and how to avoid them.
• Do not work with the machine until you are sure that you can control it. Do not start any job until you are sure that you and those around you will be safe.
• If you are unsure of anything, about the machine or the job, ask someone who knows. Do not assume anything.

Table of Contents:

JCB Hydraulic Breakers HM012T – HM380T Service Repair Manual

Introduction
About this Manual 1-1
Units of Measurement 1-1
Intended use 1-1
Special conditions of use 1-1
Carrier Machine Suitability 1-1
Machine stability 1-1
Setup 1-1
General Description 1-2
Component Identification 1-2
Safety 1-3
Safety – Yours and Others 1-3
Safety Warnings 1-3
Safety Check List 1-4
Service Tools 1-7
Hose Assesories 1-8
Male Fitting Shown for Size Reference 1-8
Nitrogen Charging Tools 1-8
Lifting Eyes (To be sourced locally) 1-9
Nitrogen Adaptor Reference Chart 1-10
Maintenance
Introduction 1-13
Health and Safety 1-14
Safety First 1-14
Lubricants 1-14
Wearing Parts 1-15
Lower Tool Bushing and Tools 1-16
Checking For Excessive Wear 1-16
Check for and Removal of Burrs 1-16
Wear Limits and Tool for Lower Tool Bushing 1-17
Tool Retention Pin Wear Limits 1-17
Tool Wear Limits 1-17
Upper Dampener Wear Limits 1-18
Lower Dampener Wear Limits 1-18
Upper Bush Wear Limits 1-19
Bottom Bush Wear Limits 1-19
Retainer Pin Wear Limits 1-20
Housing Pad Wear Limits 1-21
Adjuster Valve to Control Impact Blows 1-22
Disassembly and Assembly
Disassembly 1-23
Accumulators Discharge 1-23
Housing (Boxed) 1-24
Housing (Side Plate) 1-26
Power Cell 1-27
High Pressure Accumulator 1-34
Tool Bushes 1-35
Assembly 1-37
High Pressure Accumulator 1-37
Valve 1-39
Piston Seal 1-40
Tool Housing Assembly 1-41
Cylinder 1-41
Tightening Tie Rods 1-48
Fill the Low Pressure Accumulator with Oil 1-49
Gas Charging 1-49
Checking the low pressure accumulator 1-50
Charging the High Pressure Accumulator 1-52
Conversion Table for Charging N2-Gas for the Low Pressure Accumulation
(Power Cell Head) 1-56
Final Assembly 1-57
Installment of Power Cell into Housing 1-57
Installment of Power Cell into Side Plates 1-57
Grease Charging on Models with Automatic Greasing System 1-58
Service
Repair of Parts 1-59
Tool for Correction 1-59
Inspection 1-59
Automatic Lubrication 1-64
Installation 1-64
Refilling 1-65
Adjuster 1-65
Operation 1-66
Installment of Tool 1-69
Fault Finding 1-70
Disposal of Consumable 1-75
End of Life Disposal 1-75
Specification
Machine Specification 1-77
Torque Settings 1-79
BSP Hose Connection 1-79
Code 62 SAE Flange Coupling 1-79
Part Numbers
Breaker Models 1-81

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