Epiroc EC Series User Manual (English)

Questions and Answers:

A
Amanda DawsonJul 27, 2025
Why won't my Epiroc Construction Equipment hydraulic breaker start?
- M
  Maria MillerJul 27, 2025
  If your Epiroc Construction Equipment's hydraulic breaker doesn't start, several issues could be the cause. First, ensure the pressure and tank hoses are correctly connected and not mixed up. Next, check if any shut-off valves in the pressure or tank hoses are closed and open them if necessary. Also, inspect the couplings for defects that might be blocking the hoses; replace any defective coupling valves. Furthermore, verify that the operating pressure isn't too low by checking the carrier engine speed, pump delivery, and pressure relief valve, adjusting settings or replacing parts as needed. Finally, high return pressure can also prevent starting, so check and lower it if necessary.
M
Melissa JohnsonJul 31, 2025
Why is my Epiroc Construction Equipment hydraulic breaker operating too slow?
- F
  Frank OrtizAug 1, 2025
  If your Epiroc Construction Equipment hydraulic breaker is operating too slowly, it could be due to several reasons. One potential cause is an insufficient hydraulic oil delivery volume, so check the engine speed and mode stage of the carrier, as well as the operation pressure, and adjust as necessary. Also, inspect the pressure and tank hoses for partly closed valves and open them fully. High flow resistance on the oil filter or oil cooler can also slow operation; therefore, check, clean, or replace these components. Lastly, ensure the working tool isn't jammed in the lower breaker part by correcting the carrier boom's direction and deburring the tool's shaft if required; use the recommended chisel paste and inspect the working tool and wear bush for wear, replacing them if needed.
A
April TorresAug 4, 2025
What to do if my Epiroc Construction Equipment operating temperature is too high?
- N
  Nichole JohnsonAug 4, 2025
  If your Epiroc Construction Equipment is showing a high operating temperature, there are a couple of things to check. First, make sure the oil level in the tank isn't too low; if it is, top it up. Also, consider whether you're operating in high outside temperatures without an oil cooler; if so, check the oil temperature and install an oil cooler if necessary.
J
Jerry CurryAug 8, 2025
How to increase the impact force on my Epiroc Construction Equipment?
- D
  david82Aug 8, 2025
  If the impact force of your Epiroc Construction Equipment is too low, it could be due to low gas pressure or whipping and pulsing hoses. Check the gas pressure and fill the accumulator to resolve this issue.
H
Heather ClarkAug 13, 2025
How to fix oil leaks in Epiroc Construction Equipment?
- J
  Jennifer ZimmermanAug 13, 2025
  If you notice oil leaks in your Epiroc Construction Equipment, it's likely due to leaking or damaged seals. The solution is to replace the seals.
C
Christine WatsonAug 17, 2025
What to do if my Epiroc Construction Equipment hydraulic breaker does not start?
- V
  vpearsonAug 17, 2025
  If your Epiroc Construction Equipment's hydraulic breaker isn't starting, several factors could be at play. First, ensure that the pressure and tank lines are correctly connected, and that the shut-off valve in the pressure and/or tank line is open. Also, verify that the oil level in the tank is sufficient. Check for any defective couplings blocking the pressure and tank lines and replace them if needed. Inspect the electrical system for faults and correct them. Replace the magnet if it is damaged. Finally, check the operating pressure, carrier engine speed, pump delivery and the pressure relief valve; adjust settings and replace defective parts if required.
S
Sue RichardsonAug 22, 2025
Why is my Epiroc Construction Equipment hydraulic breaker operating too slowly?
- B
  Bradley BrownAug 22, 2025
  If your Epiroc Construction Equipment hydraulic breaker is operating too slowly, it could be due to several reasons. Start by checking the engine speed and/or mode stage of the carrier and the operation pressure and adjust it. Make sure the connecting fitting in the pressure and tank line is tightened. Ensure the shut-off valve in the pressure and/or tank line is fully open. Examine the oil filter and oil cooler for high flow resistance, clean or renew them as necessary. Also, verify the gas pressure in the piston accumulator; if it's too high, release some gas.

Epiroc EC Series Specifications

General

Brand	Epiroc
Model	EC Series
Category	Power Tool
Language	English

Summary

Introduction to Hydraulic Breaker Operation

About these Safety and Operating Instructions

Explains the purpose and scope of the safety and operating instructions for the hydraulic attachment.

Safety Instructions for Hydraulic Breakers

2.1 Signal Words

Defines the signal words used for hazard warnings: Danger, Warning, Caution, and Notice.

2.2 Usage Requirements and Precautions

Specifies qualifications, intended use, and prohibited uses for safe operation.

Hydraulic Breaker Safety Precautions

2.5 Protective Equipment

Lists the mandatory personal protective equipment (PPE) required for safe operation.

2.6 Carrier Precautions

Provides safety precautions related to the carrier vehicle used with the hydraulic attachment.

2.7 Transport Precautions

Details safety measures for transporting the hydraulic attachment.

Hydraulic Installation and Special Parts Safety

2.8 Hydraulic Installation Precautions

Covers safety precautions for the hydraulic installation and connection to the carrier.

2.9 Special Parts Precautions

Highlights safety precautions for special components like accumulators.

Media, Explosion, and Fire Safety

2.10 Media/Consumables Precautions

Addresses safety precautions when handling hydraulic oil, grease, and other consumables.

2.11 Explosion and Fire Precautions

Details safety measures to prevent explosions and fires during operation.

Electrical Shock, Falling Stones, and Emissions Safety

2.12 Electrical Shock Precautions

Explains the risks of electrical shock and necessary precautions.

2.13 Falling Stones Precautions

Provides precautions against injury from flying fragments or falling objects.

2.14 Emissions Precautions

Covers precautions related to noise and dust emissions during operation.

2.15 Handling Machines Precautions

Addresses precautions for handling the machine under the influence of substances.

Repair and Modification Safety

2.16 Repair Precautions

Outlines safety precautions to be taken during repair activities.

2.17 Changes to Hydraulic Attachment Precautions

Warns against modifications to the hydraulic attachment and adapter plate.

2.18 Environmental Pollution Precautions

Details precautions to prevent environmental pollution from hydraulic oil.

Overview of Hydraulic Breaker

3.1 Equipment Description

Provides an overview of the main parts and components of the hydraulic attachment.

3.2 Function

Explains the basic operation of the hydraulic breaker.

3.3 Signs / Labels

Describes the meaning of various signs and labels found on the hydraulic attachment.

Applications, Guarantee, and Delivery

3.4 Applications

Lists the different fields and types of applications for the hydraulic breaker.

3.5 Guarantee

Specifies conditions that will invalidate the product guarantee or liability.

3.6 Removing the Packaging

Provides instructions on how to remove and check the packaging.

3.7 Scope of Delivery

Details the items included in the scope of delivery for the hydraulic breaker.

Transporting the Hydraulic Breaker

4.1 Transport Using a Crane

Instructions for safely transporting the hydraulic attachment using a crane.

4.2 Transport Using a Forklift Truck

Guidelines for safely transporting the hydraulic attachment using a forklift.

Truck Transport and Installation

4.3 Transport Using a Truck

Procedures for safely transporting the hydraulic attachment using a truck.

5 Installation

Guidance on installing the hydraulic breaker and its components.

Hydraulic Breaker Installation Procedures

5.1 Media/Consumables

Lists and describes the necessary hydraulic oils, greases, and gases for operation.

5.2 Manufacturing the Adapter Plate

Details the requirements and considerations for manufacturing adapter plates.

5.3 Installing the Adapter Plate

Step-by-step instructions for correctly installing the adapter plate.

Attaching and Detaching the Hydraulic Breaker

5.4 Attaching the Hydraulic Attachment to the Carrier

Guidance on mechanically attaching the hydraulic attachment to the carrier.

5.4.1 Mechanical Mounting Aspects

Details the mechanical steps for attaching the hydraulic attachment to the carrier.

5.4.2 Making the Hydraulic Connections

Instructions for making the hydraulic connections between the carrier and attachment.

Removing the Hydraulic Breaker and Adapter Plate

5.5 Removing the Hydraulic Attachment from the Carrier

Instructions for safely detaching the hydraulic attachment from the carrier.

5.5.1 Dismantling the Hydraulic Connections

Steps for safely disconnecting the hydraulic lines.

5.5.2 Mechanical Disassembly

Procedures for the mechanical disconnection of the attachment.

5.6 Removing the Adapter Plate

Steps for safely removing the adapter plate.

Working Tool Procedures

5.7 Working Tool

Information and procedures related to the working tool.

5.7.1 Selecting the Right Working Tool

Guidance on selecting the appropriate working tool for the task.

5.7.2 Installation

Step-by-step instructions for installing the working tool.

5.7.3 Removal

Step-by-step instructions for removing the working tool.

Hydraulic Breaker Operation

6.1 Initial Operation and Operation After Long Storage

Procedures for first-time use and after extended storage periods.

6.2 Preparations Before Starting

Essential checks and preparations required before operating the hydraulic breaker.

6.3 Switching the Hydraulic Breaker On and Off

How to safely switch the hydraulic breaker on and off.

6.4 Functional Test

Procedure for performing a functional test before use.

Correct and Prohibited Operation

6.5 Correct Operation

Guidelines for proper and efficient operation of the hydraulic breaker.

6.5.1-6.5.3 Operational Techniques

Covers working angle, advance, and impact time for optimal breaker performance.

6.5.4 High Ambient Temperature

Precautions for operating in high ambient temperatures.

6.5.5 Low Ambient Temperature

Precautions for operating in low ambient temperatures.

Prohibited Operation Modes

6.6 Prohibited Operation

Lists operations that are forbidden and can cause damage or injury.

6.6.1-6.6.6 Forbidden Operations

Covers lifting, impacting, moving objects, levering, blank firing, and underwater use.

6.6.7 Cylinder End Positions

Advises against operating the attachment in cylinder end positions.

Stroke Control Valve Adjustment

6.7 Stroke Control Valve

Explains how to adjust the stroke control valve for different applications.

Hydraulic Breaker Maintenance

7 Maintenance

Overview of maintenance activities for the hydraulic breaker.

7.1 Maintenance Schedule

Provides a schedule for routine maintenance tasks based on operating hours.

Hydraulic System and Cleaning Procedures

7.2 Depressurising the Hydraulic System

Detailed procedures for safely depressurizing the hydraulic system.

7.3 Cleaning

Instructions for cleaning the hydraulic breaker.

7.3.1 Preparations

Steps to prepare the breaker for cleaning.

7.3.2 Procedure

The correct procedure for cleaning the hydraulic breaker.

Lubrication Procedures

7.4 Lubrication

Guidance on lubricating the hydraulic breaker and its components.

7.4.1-7.4.4 Lubrication Procedures

Covers checking lubricant film, manual, automatic lubrication, and cartridge replacement.

Lubrication System Operation and Filling

7.4.5 ContiLube® II Operation

Operating and maintenance guidelines for the ContiLube® II system.

7.4.6 Manual Lubrication

Alternative manual lubrication steps.

7.4.7 Chisel Paste Filling Device

Details on the device for refilling chisel paste cartridges.

Bolt and Working Tool Checks

7.5 Checking the Tensioning Bolts

Procedure for checking and tightening tensioning bolts.

7.6 Checking the Working Tool

Instructions for inspecting the working tool for wear and damage.

7.7 Checking the Retainer Bars

Guidance on inspecting and maintaining retainer bars.

Component Wear Checks

7.8 Checking the Percussion Piston Impact Surface

How to check the percussion piston impact surface for damage.

7.9 Checking the Wear Bushes and Impact Ring

Procedure for checking wear bushes and the impact ring.

7.10 Piston Accumulator

Information and checks related to the piston accumulator.

Piston Accumulator Pressure Management

7.10.1 Checking the Pressure in the Piston Accumulator

How to check and adjust the gas pressure in the piston accumulator.

7.10.2 Release the Pressure from the Piston Accumulator

Detailed steps to safely release pressure from the piston accumulator.

7.10.3 Filling / Topping Up the Piston Accumulator

Instructions for filling or topping up the piston accumulator with gas.

HP-Accumulator Checks and Maintenance

7.11 HP-Accumulator

Details on checking and maintaining the HP-accumulator.

7.11.1 Visual Check

Procedure for visually inspecting the HP-accumulator.

7.11.2 Checking the Fastening Screws

How to check the tightness of HP-accumulator fastening screws.

7.11.3 Checking the Gas Pressure

Guidance on checking and maintaining the HP-accumulator gas pressure.

Line, Filter, and Bolt Checks

7.12 Checking the Hydraulic Lines

Procedure for visually checking hydraulic lines for leaks and damage.

7.13 Checking and Cleaning the Hydraulic Oil Filter

Instructions for checking and cleaning the hydraulic oil filter.

7.14 Checking the Adapter Plate and Breaker Box

Procedure for checking the adapter plate and breaker box for damage.

7.15 Checking the Adapter Plate Bolts for Wear

Guidance on checking adapter plate bolts for wear.

Bolt Connections and Tightening Torques

7.16 Bolt Connections / Tightening Torques

Table of bolt connections and their required tightening torques.

Hydraulic Breaker Troubleshooting

8.1 The Hydraulic Breaker Does Not Start

Troubleshooting guide for when the hydraulic breaker fails to start.

8.2 Hydraulic Breaker Operates Too Slowly

Troubleshooting steps for slow operation of the hydraulic breaker.

Troubleshooting Low Impact Force

8.3 Impact Force Too Low

Diagnosing and resolving issues with low impact force.

8.4 Impact Rate Too High and Impact Force Too Low

Troubleshooting high impact rate with low impact force.

Troubleshooting Oil Leaks

8.5 Oil Leaks from Ports »P« and »T«

Diagnosing and fixing oil leaks from specific ports.

8.6 Oil Escapes Between Cylinder Cover and Cylinder

Troubleshooting oil leaks between cylinder cover and cylinder.

8.7 Oil Escapes from Installation Components

Identifying and fixing oil leaks from installation components.

8.8 Oil Escapes from the Working Tool

Troubleshooting oil leaks originating from the working tool.

Troubleshooting High Temperature and Pressure Line Issues

8.9 Oil Escapes from High Pressure Accumulator

Diagnosing oil leaks from the high pressure accumulator.

8.10 Oil or Grease Escapes from ContiLube® II

Troubleshooting oil or grease leaks from the ContiLube® II system.

8.11 Operating Temperature Too High

Diagnosing and resolving issues with excessively high operating temperatures.

8.12 Pressure Line »P« Flails Violently

Troubleshooting for violent flailing of the pressure line.

Repair Procedures

9 Repair

Overview of repair procedures and warnings.

9.1 Sending in the Hydraulic Attachment for Repairs

Instructions and precautions for sending the attachment for repair.

Storage Guidelines

10 Storage

General guidelines for storing the hydraulic breaker and its components.

10.1 Hydraulic Breaker Storage

Guidelines for proper storage of the hydraulic breaker to prevent damage.

10.2 Working Tool Storage

Instructions for storing the working tool safely.

10.3 Grease Cartridges Storage

Safety precautions for storing grease cartridges.

Disposal of Hydraulic Breaker Components

11 Disposal

Procedures for the safe and environmentally sound disposal of components.

11.1 Hydraulic Breaker Disposal

Procedures for the safe disposal of the hydraulic breaker, including depressurizing the accumulator.

11.2-11.4 Consumables Disposal

Guidelines for disposing of hydraulic hoses, oil, and consumables.

Technical Specifications and Noise Declaration

12 Technical Specifications

Detailed technical data for different hydraulic breaker models.

12.1 Noise Declaration Statement

Provides noise emission data for the hydraulic breakers.

EC Declaration of Conformity

13 EC Declaration of Conformity (EC Directive 2006/42/EC)

Declaration of conformity with relevant EU directives and standards.

Related product manuals

Epiroc EC Series User Manual

Table of Contents

Questions and Answers:

Epiroc EC Series Specifications

Summary

Introduction to Hydraulic Breaker Operation

About these Safety and Operating Instructions

Safety Instructions for Hydraulic Breakers

2.1 Signal Words

2.2 Usage Requirements and Precautions

Hydraulic Breaker Safety Precautions

2.5 Protective Equipment

2.6 Carrier Precautions

2.7 Transport Precautions

Hydraulic Installation and Special Parts Safety

2.8 Hydraulic Installation Precautions

2.9 Special Parts Precautions

Media, Explosion, and Fire Safety

2.10 Media/Consumables Precautions

2.11 Explosion and Fire Precautions

Electrical Shock, Falling Stones, and Emissions Safety

2.12 Electrical Shock Precautions

2.13 Falling Stones Precautions

2.14 Emissions Precautions

2.15 Handling Machines Precautions

Repair and Modification Safety

2.16 Repair Precautions

2.17 Changes to Hydraulic Attachment Precautions

2.18 Environmental Pollution Precautions

Overview of Hydraulic Breaker

3.1 Equipment Description

3.2 Function

3.3 Signs / Labels

Applications, Guarantee, and Delivery

3.4 Applications

3.5 Guarantee

3.6 Removing the Packaging

3.7 Scope of Delivery

Transporting the Hydraulic Breaker

4.1 Transport Using a Crane

4.2 Transport Using a Forklift Truck

Truck Transport and Installation

4.3 Transport Using a Truck

5 Installation

Hydraulic Breaker Installation Procedures

5.1 Media/Consumables

5.2 Manufacturing the Adapter Plate

5.3 Installing the Adapter Plate

Attaching and Detaching the Hydraulic Breaker

5.4 Attaching the Hydraulic Attachment to the Carrier

5.4.1 Mechanical Mounting Aspects

5.4.2 Making the Hydraulic Connections

Removing the Hydraulic Breaker and Adapter Plate

5.5 Removing the Hydraulic Attachment from the Carrier

5.5.1 Dismantling the Hydraulic Connections

5.5.2 Mechanical Disassembly

5.6 Removing the Adapter Plate

Working Tool Procedures

5.7 Working Tool

5.7.1 Selecting the Right Working Tool

5.7.2 Installation

5.7.3 Removal

Hydraulic Breaker Operation

6.1 Initial Operation and Operation After Long Storage

6.2 Preparations Before Starting

6.3 Switching the Hydraulic Breaker On and Off

6.4 Functional Test

Correct and Prohibited Operation

6.5 Correct Operation

6.5.1-6.5.3 Operational Techniques

6.5.4 High Ambient Temperature

6.5.5 Low Ambient Temperature

Prohibited Operation Modes

6.6 Prohibited Operation

6.6.1-6.6.6 Forbidden Operations

6.6.7 Cylinder End Positions

Stroke Control Valve Adjustment

6.7 Stroke Control Valve

Hydraulic Breaker Maintenance

7 Maintenance