Epiroc EC 50T User Manual

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EC

40T, 50T, 60T, 70T, 80T

Safety and operating instructions

Hydraulic breakers

© Construction Tools PC AB | 9800 1594 01 | 2020-03-23

Original Instructions

Table of Contents

Questions and Answers:

D
davidonealAug 9, 2025
Why won't my Epiroc Construction Equipment hydraulic breaker start?
- K
  kathleenlevineAug 9, 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.
V
vchapmanAug 15, 2025
Why is my Epiroc EC 50T Construction Equipment hydraulic breaker operating too slow?
- C
  Charlotte BeckAug 15, 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.
K
karen16Aug 21, 2025
What to do if my Epiroc EC 50T operating temperature is too high?
- M
  Marie WoodardAug 21, 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.
A
Adam BartonAug 27, 2025
How to increase the impact force on my Epiroc Construction Equipment?
- A
  Austin JonesAug 27, 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.
J
Jennifer BartonSep 2, 2025
How to fix oil leaks in Epiroc EC 50T?
- B
  Bryan BarberSep 2, 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.

Epiroc EC 50T Specifications

General

Brand	Epiroc
Model	EC 50T
Category	Construction Equipment
Language	English

Summary

Hydraulic Breaker Safety Instructions

Personal Precautions and Qualifications

Specifies requirements for qualified personnel operating or maintaining the machine.

Personal Protective Equipment

Lists essential personal protective equipment for operators and personnel in the working area.

Drugs, Alcohol, or Medication Warning

Installation Precautions

Covers precautions during the installation of the hydraulic breaker.

Hydraulic System Dangers

Highlights dangers of compressed gas, explosion, and high-pressure hydraulic oil.

Assembly or Disassembly Precautions

Warns about moving parts, crushing hazards, and securing the breaker during mounting/dismounting.

Operation Precautions

Details precautions for operation, including explosion, pressure, and dust/fume hazards.

Maintenance Precautions

Details precautions to be taken during maintenance activities.

Involuntary Start Warning

Warns about risks of involuntary start during maintenance, advising precautions.

Hydraulic System Pressure Warning

Warns about severe injury risk from hydraulic system pressure during maintenance.

Machine Modification Warning

Warns that machine modification leads to injury and voids warranty.

Working Tool Hazard Warning

Warns about serious injury from accidental engagement of controls during maintenance.

Storage Precautions

Details precautions to be taken when storing the hydraulic breaker.

Hydraulic Breaker Transport

Falling Breaker Warning

Warns about serious injury from a falling breaker and advises safe positioning.

Hydraulic Breaker Installation

Hoses and Connections

Covers hose and connection procedures, including warnings about whipping hoses.

Whipping Hydraulic Hose Warning

Warns of severe injury from pressurized whipping hydraulic hoses and advises depressurization.

Hose Connections Details

Provides details on hose connections for upper and lower ports and tightening torques.

Hydraulic Oil Requirements

Assembly Precautions

Covers precautions to be taken during the assembly process.

Falling Breaker Assembly Warning

Adapter Plate Mounting Procedure

Connecting Breaker to Carrier

Hydraulic Breaker Working Tool

Selecting the Right Working Tool

Mounting and Dismounting Working Tool

Running Engine Warning

Hydraulic Breaker Operation

Preparation Before Breaking

Operating Temperatures

Temperature Hazard Caution

General Operating Procedures

Risk Area Definition

Breaking Techniques

Details techniques for breaking, including breaker angle, feed pressure, and work patterns.

Machine and Tool Hazard Caution

Hydraulic Breaker Maintenance

Cleaning Procedures

Lubrication Guidelines

Piston Accumulator Servicing

Explosion Hazard Warning

Warns about explosion risk from using gases other than Nitrogen in the accumulator.

Lubrication Interval (Every Second Hour)

Hot Working Tool Warning

Warns about burns from hot tools and advises against contact.

Hot Hydraulic Breaker Warning

Daily Checks

Weekly Checks

Wear Limits

Replacing the Wear Bushing

Hydraulic Breaker Storage

Heavy Equipment Storage Warning

Warns about injury and damage from heavy equipment toppling during storage.

Hydraulic Breaker Troubleshooting

Breaker Does Not Start

Low Impact Force

Oil Leaks

Slow Operation

High Operating Temperature

Hydraulic Breaker Technical Specifications

Machine Data

Capacities and Performance

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