Allied AR Series Guide

Thoroughly read and understand the content of this manual before using the Allied Breaker. The safe and efcient
use of the Allied equipment depends upon proper installation, operation, maintenance and training.
Keep this manual in a convenient location so that it is easily accessible for future reference. Contact your Allied
Dealer or the Allied Customer Service Department for replacement manuals. Inquiries regarding the content of this
manual must include effective date shown on inside cover.
SOM576778
AR SeriesAR Series
Hydraulic
Impact
Breaker
Model
AR70D
AR75B
AR85B
AR95B
Safety, Operation and Maintenance

Allied Construction Products, LLC www.alliedcp.com
SOM576778_15apr
i
Contact Information
3900 Kelley Ave www.alliedcp.com
Cleveland, Ohio 44114 Tel: [phone]
E-mail: [email protected] Fax: [phone]
Continuous improvement of our products is an Allied policy. The material in this publication, including figures, captions,
descriptions, remarks and specifications, describe the product at the time of its printing, and may not reflect the product in the
future. When changes become necessary, these will be noted in the table below. Specifications are based on published
information at the time of publication. Allied Construction Products, LLC, reserves the right to change, edit, delete or modify the
content of this document, including descriptions, illustrations and specifications without prior notification. For product or
document updates go to www.alliedcp.com .
Table of Revision History for Document No. SOM576778
Effective Date Page Summary of Change
2015, Apr Housing Box – AR85B Begin S/N-01213
Housing Box – AR95B Begin S/N-01114
2014, Apr 41 Revise Table 14.1
2013, Dec 41,42 Revise Table 14.1, 14.2. Auto Grease (AG) port introduced on units after
September 2013 (AR85B Begin S/N-01172 & AR95B begin serial number 01093)
2013, Sep All Original issue of 576778. This issue includes the introduction of the model AR70D. In addition, this document supports existing models AR70D, AR75B,
AR85B & AR95B. These models are no longer supported in Publication 002065.

Allied Construction Products, LLC www.alliedcp.com
SOM576778_15apr
ii
Safety Information
Safety Statements and Hazard Alerts
Safety messages appear throughout this manual and
on labels affixed to the Allied equipment. Read and
understand the information communicated in safety
messages before any attempt to install, operate,
service or transport the Allied equipment.
Keep all safety labels clean. Words and illustrations
must be legible. Before operating this equipment,
replace damaged or missing labels.
Purpose of Safety Messages
Information provided in safety messages is important
to your safety. Safety messages communicate the
extent, magnitude and likelihood of injury associated
with unsafe practices such as misuse or improper
handling of the Allied equipment. Safety messages
also explain how injury from potential hazards can be
avoided.
Safety messages presented throughout this manual
communicate the following information:
1. Alert personnel to potential hazards
2. Identify the nature of the hazard
3. Describe the severity of the hazard, if
encountered
4. Instruct how to avoid the hazard
Safety Alert Symbol
The safety alert symbol is represented by the
exclamation point within an equilateral triangle. This
symbol means - ATTENTION, BECOME ALERT,
YOUR SAFETY IS INVOLVED.
Fig. S1 Safety Alert Symbol
The Safety Alert Symbol (Fig. S1), either used alone
or in conjunction with a signal word, is used to draw
attention to the presence of potential safety hazards.
Signal Words
“DANGER”, “WARNING” and “CAUTION” are signal
words used to express severity of consequences
should a hazard be encountered.
DANGER - Indicates an imminent hazard, which, if
not avoided, will result in death or serious injury.
WARNING - Indicates an imminent hazard, which, if
not avoided, can result in death or serious injury.
CAUTION - Indicates hazards which, if not avoided,
could result in serious injury or damage to the
equipment.
Pictograms
Safety messages may also include a pictogram in
addition to the safety alert symbol and signal word.
Pictograms provide another component of
information that will further enhance the effectiveness
of the hazard communication.
CAUTION
Burn injury from contact with hot surface.
Some components become hot during
operation. Allow parts and fluids to cool
before handling.
Fig. S-2 Components of Safety Message - Typical
Signal Words Used for Non-Hazard Messages
Other message types appearing in this manual utilize
signal words 'IMPORTANT' and 'NOTE'. These
contain messages that describe instructions and
suggestions, but are not safety-related.
IMPORTANT – Identify instructions that if not
followed, may diminish performance; interrupt
reliability and production or cause equipment
damage.
NOTE – Highlight suggestions, which will enhance
installation, reliability, or operation.

Allied Construction Products, LLC www.alliedcp.com
SOM576778_15apr
iii
Safety Information – [cont’d]
Safety, Information and Identification Labels
Information labels affixed to the Allied equipment
include safety warnings, identification and
instructions important to operation and service. Refer
to Figure “L-15” for their location on the equipment.
Keep all safety labels clean. Words and illustrations
must be legible. Before operating this equipment,
replace damaged or missing labels. For replacement,
refer to the appropriate Parts Manual for
identification.
Fig. Label Description
L1
READ INSTRUCTIONS - Decal directs personnel to the manual for
further information / instructions.
L2
STAY CLEAR – Decal alerts personnel and by-standers to maintain a
safe distance from the Breaker while in operation.
L3
FLYING DEBRIES – Decal alerts of the risk of injury from impact by
rock fragments. Protective guards must be placed between the
breaker and operator to shield against material fragments becoming
projectiles. It directs personnel to the safety instructions in the
Operator’s Manual. NOTE: Place the smaller size decal in a
conspicuous location inside the operator’s cab.
L4
TOOL SHARPENING – Decal warns against welding, cutting, or
hard-facing the tool. It directs personnel to the Operator’s Manual for
approved sharpening methods.
L5
PRESSURIZED NITROGEN ACCUMULATOR – Decal warns of
pressurized gas and directs personnel to the Repair Manual for
service instructions.
L6 ---
REMOVED – USE DISCONTINUED
L7 LIFT POINT – Decal identifies approved lift points.
U
I
A
L
E
S
R
A
E
C
H
F
E
R
E
R
V
F
E
B
O
N
C
I
G
N
A
G
NITROGEN
PRESSURIZED
ACCUMULATOR
T
R
O
R
O
P
E
R
I
G
N
A
W
!
R
M
R
T
O
O
R
'
S
N
A
N
I
G

Allied Construction Products, LLC www.alliedcp.com
SOM576778_15apr
iv
Safety Information – [cont’d]
Fig. Label Description
L8
LUBRICATION – Decal emphasizes key re-lubrication
instructions, including; frequency and precautions that must be
observed to ensure breaker is not damaged through unapproved
methods.
L9
LUBRICATION POINT – Decal identifies lubrication points. Refer
to the manual(s) for grease type, re-lubrication schedules and
procedures. Risk of equipment damage if instructions are not
followed.
L10
PRESSURE I.D. TAG - The hydraulic supply hose is tagged for
ease of identification.
L12 ALLIED LOGO – This decal is the Allied brand identifier and is a
registered trademark of Allied Construction Products, LLC.
L11
ALLIED LOGO – This decal is the Allied brand identifier and is a
registered trademark of Allied Construction Products, LLC.
L13 AR70D MODEL – Decal identifies the specific model.
L14
ID Tag - Contains identifying information about the equipment,
including: Manufacturer’s name, address, product name, model
number, serial number, year of manufacture, and weight.
Fig. L15 Label Positions
AR SERIES
10

Allied Construction Products, LLC www.alliedcp.com
SOM576778_15apr
v
Safety Information – [cont’d]
Meaning of Pictograms
Pictograms are used to rapidly communicate
information. For the purposes of this manual and
labels affixed to the Allied equipment, pictograms are
defined as follows:
Read the manual
Refer to the manual for further
details
Procedures are explained in
the manual
Read the Service Manual For
Additional Information
Personnel maintain a safe distance
from breaker
Protective guards required on cab
when operating this work tool
Fragments / debris becoming
airborne projectiles
Falling object
Unsupported loads
Personal Protection Equipment
Hearing protection
Safety eyewear
Gloves
Safety shoes
Falling part
Moving part (in direction
indicated by arrow)
Pinch point
Crush point
Leaking fluid under
pressure
Hot surfaces
Gas / Oil under pressure
Shut off carrier & remove
key before servicing
Identifies lift point
Prohibited actions must be
avoided to prevent injury
and/or equipment damage
A prohibited action is
identified with an X-out or a
circle with a diagonal slash.
The check mark symbol is
used to indicate actions
and methods that are
recommended, correct and
approved

Allied Construction Products, LLC www.alliedcp.com
SOM576778_15apr
vi
Safety Information – [cont’d]
Qualified Person
For the purposes of this manual, a qualified person
is an individual that has successfully demonstrated
or completed the following:
Has read, fully understands and adheres to all
safety statements in this manual.
Is competent to recognize predictable hazardous
conditions and possess the authorization, skills
and knowledge necessary to take prompt
corrective measures to safeguard against
personal injury and/or property damage.
Has completed adequate training in safe and
proper installation, maintenance and operation
of this Allied equipment.
Is authorized to operate, service and transport
the Allied equipment identified in Table 1.1.
Safety Information Overview
It’s important for all personnel working with the Allied
equipment to read this manual in its entirety. It
contains important safety information that must be
followed so that unsafe situations may be avoided.
Safety information described at the beginning of this
manual is generic in nature. As you continue reading
through later sections of this manual, instructions
and safety information become tool-specific and
operation-specific.
Allied has made every effort to provide information
as complete and accurate as possible for this
document. Allied cannot anticipate every possible
circumstance that might involve a potential hazard.
The warnings in this manual and labels affixed to the
Allied attachment are therefore not all inclusive.
General Construction Safety
Always follow procedures that promote safe
conditions for workers and bystanders. The standard
safety precautions expected and required of those
working in construction shall include, but not limited
to:
Locating existing underground service and utility
lines
Establishing pedestrian barriers
Using personnel protection equipment
appropriate to working conditions, etc.
Federal, State, Local and OSHA Construction
Guidelines and Regulations
Use the Allied equipment in accordance with all
federal, state and local regulations regarding
construction practices and public safety.
Identification of, and compliance to, governing
regulations are the responsibility of the owner and
operator.
In the United States, comply with the
recommendations of the Occupational Safety and
Health Administration standards of the U.S.
Department of Labor. For OSHA construction
guidelines contact your local federal government
office or write:
U.S. Government Printing Office Superintendent of
Documents P.O. Box 371954 Pittsburgh, Pa. 15250-
7954
Website: www.osha.gov
Ask for Construction Industry OSHA Standards
Stock #869-034-00107-6.
Owner’s Responsibilities
Ensure that only qualified personnel operate and
service the Allied equipment.
Ensure personnel protection equipment is available
to personnel and enforce the use of PPE
Ensure equipment is kept in safe operating condition
Ensure safety-related materials such as instructions
and including this manual are kept in a convenient
location so that they are easily accessible to
operators and maintenance personnel.
Attention Read the Manual
Improper installation, operation or maintenance of
the Allied equipment could result in serious injury or
death. Only qualified operators may operate the
Allied equipment. Personnel responsible for the
maintenance of the Allied equipment or its systems,
including inspection, installation or adjustments must
also be qualified. Operators and personnel
responsible for maintenance of this equipment
should read this manual. Other manuals, such as
those published by the machinery used in support of
the Allied equipment, should also be read.

Allied Construction Products, LLC www.alliedcp.com
SOM576778_15apr
vii
Safety Information – [cont’d]
Operational Safety Program
The safe and efficient use of the Allied equipment
depends upon proper installation, operation,
maintenance and repair. Operational safety programs
must encompass all of these elements.
Accident prevention through operational safety
programs are most effective when the equipment
owner further develops the program by taking into
account his own experience in using and maintaining
equipment.
Developing such programs will help minimize
equipment downtime, while maximizing service life
and performance. Most importantly, it will minimize
the risk of personal injuries.
Personal Protection Equipment (PPE)
Personal protection equipment (PPE) must be
available to any personnel operating or nearby the
equipment that may be exposed to hazards such as
falling, flying and splashing objects, or harmful dusts,
fumes, mists, vapors, or gases. Approved PPE, when
used correctly, helps protect against certain harmful
effects from exposure with the identified hazard.
Examples of PPE include safety eyewear, safety hat,
hearing protection, dust mask, safety footwear, and
gloves. (Shown Pictograms of PPE is not all-
inclusive).
Those responsible for administering PPE shall train
personnel with the proper selection and use of PPE
to protect against misuse.
Safety Guards and Protective Barriers
A safety guard is a physical barrier designed to
prevent access to danger areas. Guards are fitted to
the Allied equipment to protect against unsafe
situations that could not be eliminated through design
measures. Guards are only effective when properly
installed and in place. Guards shall not be removed
unless for the purpose of inspection and service of
components. Reinstall all guards after service or
adjustments are completed.
Where it was not possible to prevent an unsafe
situation by means of a guard, safety messages
appear on the equipment, warning personnel of a
recognized hazard.
Additional guarding, not included with the Allied
equipment, is necessary at the operator’s station to
protect the operator and other nearby personnel
against flying debris from material being cut or
demolished. Do not handle, demolish or cut material
overhead without proper guards installed.
The control switch shall be located in a protected
area that is guarded against accidental operation of
the Allied work tool.
Unapproved Use or Modifications
In order to provide and maintain efficient operation
with reliable service, while ensuring operator safety,
the Allied equipment may not be used for any
purpose other than, for which it was intended. Use of
the Allied equipment, other than those cited in this
manual, may place personnel at risk of injury and/or
may subject the equipment to damage.
When making repairs, use only the manufacturer's
genuine parts. Substitute parts may not meet the
required standards for fit and quality, or may impair
function, safety and performance. The Allied
equipment shall not be modified or used in
unapproved applications unless written consent is
received from the Allied Engineering Department.

Allied Construction Products, LLC www.alliedcp.com
SOM576778_15apr
viii
Table of Contents
SECTION Pg.
Revision History of Document…………………..… i
Safety Information……………………………………. ii
Safety Statements and Hazard Alerts………………. ii
Purpose of Safety Messages……………………..…. ii
Safety Alert Symbol...…………..……………….……. ii
Signal Words – Type and Application………....……. ii
Safety, Information & Identification Labels……..…. iii
Meaning of Pictograms ..……………………..………. v
Attention Read the Manual………………………..... vi
Qualified Person…………….………………...……… vi
Safety Information Overview………………………… vi
General Construction Safety………………………… vi
Federal, State, Local and OSHA Construction
Guidelines and Regulations……………….…….….. vi
Owner’s Responsibilities………………………….…… vi
Operational Safety Program……………………….…. vi
Personal Protective Equipment (PPE)………………. vii
Protective Equipment – Guarding…………………… vii
Unapproved Modifications…………………………….. vii
Table of Contents………….…………………..……... viii
List of Figures………………………....……………… x
1.0 Introduction & Scope………………………….… 1
1.1 Purpose of This Manual………………..….……… 1
1.2 Content Includes………..………………….…….... 1
1.3 How to Order Replacement Publications….……. 1
1.4 Related Publications….………………..…….….... 1
2.0 Equipment Identification………….…………...... 3
2.1 Serial Number Location.………………………..…. 3
2.2 Equipment Identification Tag………………....….. 3
2.3 Record Equipment Information.………………... 3
3.0 Warranty Protection Summary………..……… 4
3.1 Overview…….……………………………….…….. 4
3.2 Owner’s Responsibilities………….….……...…... 4
3.3 Allied Product Policies……………….…………... 5
SECTION Pg.
4.0 Product Information……………………………... 6
4.1 Description and Typical Applications…………….. 6
4.2 Familiarization of Breaker Components…….…... 6
4.3 Principle of Operation………………………..……. 6
5.0 Sizing the Breaker…………………..…....……… 8
5.1 Selecting the Proper Size Breaker………………. 8
5.2 Auxiliary Circuit & Conversion Kits………………. 8
6.0 Operation……………………..…………...……… 10
6.1 Before the Breaker is Used………………..…….. 10
6.1.1 Pre-Operation Inspection………………..……. 10
6.2 Proper Operation of the Breaker………………... 10
6.2.1 Cycle Time………………………………………... 11
6.3 Operating Mistakes to Avoid..……………………. 11
6.3.1 Change in Pitch / Frequency……………….… 11
6.3.2 Do Not Pry with Breaker………………………… 12
6.3.4 Do Not Drop / Pound Breaker Against Material 12
6.3.5 Do Not Lift or Transport Loads with Breaker… 12
6.3.6 Do Not Operate With Cylinders At Stroke End.. 13
6.4 Special Applications / Operating Conditions……. 13
6.4.1 Working Underwater………………….……….. 13
6.4.2 Working Underground……………………..…… 13
6.4.3 Working in Hot Temperatures……………..….. 13
6.4.4 Working in Cold Temperatures………………... 13
7.0 Care and Maintenance…………………………... 15
7.1 Maintenance Schedule…………………………... 15
7.2 Keeping a Maintenance Log…………………….. 16
7.3.1 Housing Plate Inspection…………………….. 16
7.3.2 Housing Box Inspection………………………… 17
7.4 Front Head Inspection At Tool Re-lubrication…. 17
7.4.1 Internal Parts of the Front Head..…………….. 18
7.4.2 Measure Wear of Tool & Bushings…..……….. 18
7.4.3 Inspect Tool Retainers….………..…………….. 18
7.5 Inspect Piston…………………………..…..….….. 20
7.6 Accumulator………………………….………….... 20

Allied Construction Products, LLC www.alliedcp.com
SOM576778_15apr
ix
Table of Contents - [cont’d]
SECTION Pg.
7.7 Inspect Mounting Pins……………………….…… 21
7.8 Inspect Threaded Fasteners………………..…… 19
7.9 Inspect Hoses…………………..…….…………... 20
7.10 Check Oil & Filter on Carrier………..….…….. 20
7.11 When to Measure Oil Pressure……………….. 20
7.11.1 Safety Precautions…………………..……… 20
7.11.2 How To Measure Oil Pressure……………… 22
8.0 Safe Handling & Storage 23
8.1 Transport Breaker Independently of Carrier…… 23
8.2 Transport Breaker Installed on Carrier………… 23
8.3 Breaker Storage – Short Term (< 14 days)…… 23
8.4 Breaker Storage – Long Term (> 14 days)……. 23
9.0 Attach / Remove Breaker To & From Carrier 25
9.1 Carrier Requirements…………..……….……… 25
9.2 Mounting Kits…………………………………….. 25
9.3 Tools Required to Attach the Breaker………… 25
9.4 Attach the Breaker to the Carrier………………. 25
9.5 Connect Supply and Return Lines……...……… 26
9.6 Remove the Breaker from Carrier……………... 27
10.0 Changing the Breaker Tool……………….… 28
10.1.1 Safety Pre-cautions…………………………. 28
10.2 Tools Required……………….………………. 28
10.3 Overview of Tool Retainer System……..…. 28
10.4.1 Removal of Tool - AR70D….………………. 28
10.4.2 Removal of Tool – AR75B,AR85B,AR95B 28
10.5 Inspect & Prepare Tool for Installation……….. 30
10.5.1 Installing Tool – General……………..…..….. 30
10.5.2 Tools Required……………………………….. 30
10.5.3 Installing the Tool……………………………. 30
10.6 Tool Re-Lubrication – Conventional Method 30
10.7 Avoid Costly Lubrication Mistakes…….…… 31
10.8 Automatic Lubrication Systems……………….. 32
10.8.1 Carrier Mounted Lube Systems…………… 32
SECTION Pg.
10.8.2 Breaker Mounted Lube Systems………….. 32
10.9 Chisel Paste……………………………………. 32
11.0 Tool Selection – Application Guide………… 33
11.1 Match the Application………………………….. 33
11.1.1 Penetrative vs. Impact Breaking…………… 33
11.2 Working Length of Tool………..……………… 33
11.3 Re-Sharpening Technique…………………….. 33
12.0 Accumulator N2 Gas Charge Tool…………. 34
12.1 Accumulator & Charge Tool - General……… 34
12.2 Safety Precautions…………………………..… 35
12.3 How to Connect the Charge Tool…………….. 35
12.4 How to Test / Measure Gas Charge…………. 35
12.5 Charging the Accumulator……………..…….. 36
12.6 Removing the Charge Valve………………….. 36
13.0 Troubleshooting Guide……………………… 37
14.0 Technical Data….……………..………………. 41
14.1 Definition of Terms…………………….………. 41
14.2 Testing the Hydraulic Circuit……….……..….. 42
14.3 Technical Specifications………………………. 43
15.0 Service Records………………….………….. 53
List of Figures Pg.
S-1 Safety Alert Symbol………………………………. ii
S-2 Safety Message – Typical Presentation……….. ii
L1-14 Information Labels on Breaker..…….………. iv
2-1 Equipment Identification……………………….... 3
2-2 Equipment Identification Tag……..…………….. 3
4-1 Main Components of Hydraulic Breaker…….… 6
4-2 Cutaway of Breaker Assembly….……………… 6
5-1 Conversion of Auxiliary Hydraulic Circuit……… 9
6-1 Install Protective Guards…………………............. 10
6-2 Align Breaker at 90° to Work Surface…………. 11

Allied Construction Products, LLC www.alliedcp.com
SOM576778_15apr
x
List of Figures and Tables
Figure Pg.
6-3 Do Not Overheat Tool….………………………….. 11
6-4 Start at Outer Edge & Work Inward……………... 11
6-5 Do Not Blank Fire…………………………………. 12
6-6 Misalignment – Tool Breakage if Side Loaded… 12
6-7 Do Not Pry with the Breaker…………………….. 12
6-8 Do Not Pound Breaker Against Material………… 12
6-9 Do Not Operate With Cylinders At Stroke End 12
6-10 Do Not Use Work Tool to Lift or Carry Objects 13
6-11 Travel With Work Tool Close to Ground……. 13
6-12 Prohibited Park Position………………………… 13
6-13 Not Underwater Ready - Modifications Are
Required Before Use…………………..………… 13
7-1 Inspect Housing Plates & Components………... 16
7-2 Inspect Housing Box & Buffers..……..………... 17
7-3 Front Head Assembly – Parts Familiarization… 18
7-4 Gap Between Bushing & Tool………………..…. 18
7-5 Measure OD of Tool For Wear…………………… 18
7-6,7 Measure Bushing & Thrust Ring For Wear….. 18
7-8 AR70D & AR75B,85B,95B Front Head Assembly 19
7-9 Piston With Damage to Impact Face………..…. 20
7-10 N2 Gas Charged Accumulator…………………. 20
7-11 Measuring Oil Pressure……….……..……..…… 22
8-1 Use Approved Lift Points…………..…………….. 23
8-2 Prohibited Park Position….……………....……… 23
8-3 Push Piston to Its Highest Position…………….. 24
8-4 Protect Piston Against Water Damage....……… 24
8-5 Protect Breaker With Tarp……………....……… 24
9-1 Pin-on Mounting Bracket - Typical ………..…..… 25
9-2 Attach Breaker to Carrier - Typical…………..…. 26
9-3 Port IN & OUT Marked on Valve Housing 26
9-4 Check Hose Routing……………………………… 26
9-5 Close Supply & Return Line Valves………....…. 27
10-1 Tool Removal - AR70D……………..……. 29
10-2 Tool Removal - AR75B,85B,95B..…..…. 29
10-3 Lubricant On Tool Visible to Operator………... 30
Figure Pg.
10-4 Stand Breaker Upright Before Greasing…….... 31
10-5 Tool Lubrication Point…………………………. 31
10-6 Pre-Lube the Tool Shank……………….……… 31
10-7 Carrier Mounted AutoLube.………………..…. 32
10-8 Breaker Mounted AutoLube…………….……. 32
11-1 Tool Types - Conical, Chisel, Blunt ……..…… 33
11-2 Tool Working Length……………….….………... 33
12-1 N2Gas Charge Kit…..…………..…….….…… 34
14-1 Flow-Pressure Diagram………..………………. 41
14-2 Standard Dimensions – AR70D……………….. 44
14-3 Standard Dimensions – AR75B………………… 46
14-4 Standard Dimensions – AR85B, AR95B Plate 48
14-5 Standard Dimensions – AR85B,AR95B Box 49
14-6 Position of Threaded Fasteners-AR70D,AR75B 50
14-7 Position of Threaded Fasteners-AR85B,AR95B 51
14-8 Rotation Angle of Side Rods & Tightening
Sequence……………………………………..… 52
List of Tables Pg.
1.1 About This Manual 1
7.1 Buffer Wear Limits 17
7.2 Inspection Of Front Head Assembly 18
7.3 Front Head Wear Limits 19
12.1 Accumulator N2 Gas Charge Kit 34
13.1 Troubleshooting Guide 37
14.1 and 14.2 Technical Data AR70D 43
14.3 and 14.4 Technical Data AR75B 45
14.5 and 14.6 Technical Data AR85B & AR95B 47
14.6 Fastener Torque AR70D & AR75B 50
14.7 Fastener Torque AR85B & AR95B 51
14.8 Side Rod Tightening Instructions 52

Allied Construction Products, LLC www.alliedcp.com
SOM576778_15apr
1
1.0 Introduction and Scope
1.1 About this Manual
Table 1.1 About This Manual
Document ID No. SOM5767778
Type Safety, Operation and
Maintenance
Current Status See Inside Cover
Product Name: Hydraulic Impact Breaker
Series AR
Applicable Model[s]: AR70D, AR75B, AR85B,
AR95B
Years of Manufacture: Begin 2002
1.2 Content Includes
This Manual has been prepared to assist the operator
and maintenance personnel with the information
necessary for the safe and proper use of the Allied
Breaker. This manual is an integral part of this
product. Keep it in a convenient location so that it is
easily accessible for future reference.
Safety Section
Equipment Identification
Pre-Operation Inspection
How to Operate the Breaker
Maintenance Schedule
Lubrication
Changing the Breaker Tool
Wear Limits of Bushing and Tool
Charging the N2 Gas Accumulator
Troubleshooting
Lifting, Transporting & Storage
Technical Data / General specifications
Prior to use, confirm that the information recorded on
the equipment’s identification label corresponds with
Table 1.1.
The material presented in this manual has been
prepared in support of the product named in Table
1.1. It's intended solely for use with expressed
model(s) and may be unsuitable with models
unnamed.
The publication identified in Table 1.1 was created
solely for information purposes and should not be
considered all-inclusive. If further information is
required, contact your local Allied dealer or the Allied
Customer Service Department.
Material presented in this manual, including tables,
figures, descriptions and captions, may show
equipment that is optional.
The content of this document has been reviewed for
accuracy. Allied Construction Products, LLC has
endeavored to deliver the highest degree of accuracy
and every effort has made to provide information as
complete as possible. However, continuous
improvement of our products is an Allied policy. The
material in this publication, including figures,
captions, descriptions, remarks and specifications,
describe the product at the time of its printing, and
may not reflect the product in the future. A table of
revision history for this document is found on the
inside cover.
1.2.1 How To Order Replacement Publications
This manual is an integral part of this product. Keep it
in a convenient location so that it is easily accessible
for future reference. If replacement manuals are
required, they may be ordered by contacting your
Allied dealer service center. Manuals may also be
viewed and downloaded at: www.alliedcp.com
1.3 Related Publications
Allied Construction Products, LLC offers the following
publications for the product identified in Table 1.1.
1.4.1 Parts Manual
The Parts Manual identifies each component of the
Allied work tool. Safety and information labels are
also included in the Parts Manuals.
Material presented in each Parts Manual, including
part names, illustrations and descriptions, may not be
suitable for other models. Prior to using any Parts
Manual, confirm that the information recorded on the
Equipment’s Identification Tag corresponds with the
model information located on the front cover of the
manual.
Illustrations shown in the Parts Manual are not
intended for use in the repair or service of the
breaker.

Allied Construction Products, LLC www.alliedcp.com
SOM576778_15apr
2
1.0 Introduction and Scope – [cont'd]
1.4.2 Repair Manual
The Repair Manual has been prepared to assist the
Service Technician with the information necessary for
the disassembly & reassembly of the Breaker.
Content includes:
Safety Information
Disassembly & Reassembly
Bolt Torque Specifications
Wear Limits of Parts
N2 Gas Charging Instructions
1.4.3 AEM Safety Manual for Hydraulic Mounted
Breakers
The Association of Equipment Manufacturers offers a
safety manual designed for operators and
maintenance personnel of hydraulic mounted
breakers.
The manual is available in Spanish, French and
English. It is published in an illustrated format of
sensible do's and don'ts, featuring typical daily
situations on the job site.
Content includes safety tips concerning the
workplace and equipment, start up and shut down
guidelines and special operating and maintenance
precautions.This publication is available by
contacting:
Association of Equipment Manufacturers
Toll free 1-866-AEM-0442
E-mail: [email protected]
Website: www.aem.org
Ask for FORM CMHB-1004, Hydraulic Mounted
Breakers.
This publication is also available through Allied under
part number 953076 (English). To order a copy,
contact the Allied Customer Service Department.

Allied Construction Products, LLC www.alliedcp.com
SOM576778_15apr
3
2.0 Equipment Identification
2.1 Serial Number Location
Fig 2-1 Equipment Identification
Refer to Figure 2-1. The Serial Number assigned to
this equipment can be found in the following
locations:
1. Stamped on the Equipment Identification Tag
2. Stamped on valve housing near the IN port.
2.2 Equipment Identification Tag
Fig 2-2 Equipment Identification Tag
The Equipment Identification Tag is affixed to the
housing. It provides the following information:
Manufacturer’s name
Address
Product name
Model number
Serial number
Year of manufacture
Weight
Confirm that the information contained on the Tag
corresponds with the information provided in Section
1, Table 1.1.
2.3 Record Equipment ID Information for Future
Reference
Your local Allied dealer requires complete information
about the equipment to better assist you with
questions regarding parts, warranty, operation,
maintenance, or repair.
Copy the Model and Serial Number from the
Equipment Identification Tag to the space
provided below.
Indicate the date in which the Allied equipment
was placed into service.
Fill out the Warranty Registration form and return
to Allied Construction Products, LLC.
Product Hydraulic Breaker
Series AR
Model
Part Number:
Serial Number:
In Service Date:
Registration Date
AR SERIES

Allied Construction Products, LLC www.alliedcp.com
SOM576778_15apr
4
3.0 Warranty Protection Summary
3.1 Overview
The Allied equipment is delivered assembled and
factory tested. Upon receipt of the equipment, inspect
for possible shipping damage or loss.
Before installing the equipment, familiarize yourself
with the features and functionality of the unit. Refer to
the technical data section of this manual for
specifications and dimensions. When properly
installed, operated and maintained by qualified
personnel, the Allied equipment will remain
productive with a minimum of service. Improper
installation, including failure to calibrate (test and
adjust) the equipment correctly may negatively
impact performance or subject the equipment to
conditions beyond their operating specifications.
The use of non-genuine parts or unapproved
lubricants, modifications, installation, service
methods and operation not in accordance with the
contents of this manual may cause loss of
performance, equipment failure or personal injury.
Warranty does not cover conditions, which in the
reasonable judgment of Allied Construction Products,
LLC, arise from improper installation, misuse,
negligence, alteration, accident, or underperformance
of necessary maintenance. Complete warranty terms
and conditions can be found in document 100785.
3.2 General Maintenance Policy
The following general maintenance policies outline
the minimum requirements for reducing failures and
minimizing unscheduled equipment downtime. The
owner is strongly encouraged to implement these
guidelines and further develop them to manage
particular applications and operating environments.
Owner's responsibility includes:
Ensure that personnel entrusted with installation,
operation, and maintenance of the Allied
equipment adhere to the following:
Read and fully understand the information
included in this manual.
Recognize that operating this equipment in
conditional applications, such as working
underwater, requires modifications to the
standard breaker and additional training for the
operator, maintenance and service personnel.
Use the Allied equipment only if it is in sound
operating condition. Take prompt action to rectify
any faults that, if left uncorrected, could lead to
further damage of this equipment or subsequent
damage to supporting equipment or personal
injury
Use the Allied equipment only for the purpose for
which it is intended.
Regularly conduct inspections of the equipment
and follow the recommendations found in the
Maintenance Section of this manual.
Understand effective communication is key to the
success of any maintenance program. Appointing
‘Who Does What’ ensures that all personnel
understand exactly what their specific
responsibilities include.
1. Establish maintenance responsibilities to be
performed by the Operator.
2. Establish maintenance responsibilities to be
performed by the Service Technician.
Recognize problems and know how to take
corrective action as outlined in the
Troubleshooting Section of this manual.
Allow only qualified operators and service
technicians to perform maintenance and repair.
Maintain written records of equipment
maintenance, service and repair. These records
are helpful if warranty coverage is ever in
question.
Each record shall include at least:
Date of service, maintenance or repair.
Description of the service, maintenance or repair
performed. Include part numbers if applicable.
Copies of purchase order(s) and invoice(s) for
repair parts and service.
The name and signature of the person
performing the service, maintenance or repair.

Allied Construction Products, LLC www.alliedcp.com
SOM576778_15apr
5
3.0 Warranty Protection Summary - [cont’d]
3.3 Allied Product Policies
In this manual, Allied recommends breaker
applications, maintenance and service consistent
with industry practices.
Allied assumes no responsibility for the results of
actions not recommended in this manual and
specifically the results of:
Improper Installation, Set-up, Calibration
Carelessness / Incorrect operating methods
Inattention to re-lubrication and other
maintenance requirements
Misuse / Unapproved applications
Inadequate or Absence of Training
Use of non-genuine Allied replacement parts
Unapproved modifications
Use of grease, which is not or is only
conditionally pumpable.
The use of a lubricant type that is unsuitable for
the application. Allied Chisel Paste is
recommended for all breaker models.
Contaminated lubricants.
Improper disposal of used or contaminated
lubricants.
These exclusions apply to damage to the Allied
equipment, associated equipment and injury to
personnel.

Allied Construction Products, LLC www.alliedcp.com
SOM576778_15apr
6
4.0 Product Information
4.1 Description and Typical Applications
The Allied Breaker is a hydraulic powered impact
breaker designed for mounting on mobile equipment
with hydraulic booms, such as rubber tired or track-
type construction vehicles.
The breaker is suited for many types of construction
and mining applications including -
Clearance Work: Demolition of buildings, bridges,
reinforced foundations etc.
Trenching: Breaking trenches out of rocky and
frozen ground.
Mining and Quarrying Applications: Demolishing
and leveling quarry rock, breaking oversized
minerals and other rock-like raw materials.
Excavation of rock from trenches, foundations
and tunneling.
Underwater: Demolition and deepening of
shipping channels. (Requires conversion from
standard type before underwater use!)
Recycling: Breakup of "skulls" from the steel
industry.
4.2 Familiarization of Components
Fig 4-1 Main Components of Hydraulic Breaker
4.3 Principle of Operation
Fig 4-2 Cutaway of Breaker Assembly
The Breaker is not self-powered. Performance
relies on a capable host machine that's equipped
with a hydraulic circuit. Within the hydraulic
circuit, an ON/OFF valve is used to control flow in
one direction to the Breaker. The valve will be
managed with a momentary switch located inside
the operator’s cab within easy reach of the
operator.
With the valve ON, supply oil from the host
machine flows to the [IN] port on the breaker. Oil
is blocked from entering the breaker unless
sufficient contact pressure is applied on the tool
to push the piston up and out of the brake
position.
Located on the breaker is the operating valve. Oil
is directed by this valve to the lower end of the
cylinder. The first half of the cycle begins when
oil, under pressure, raises the piston. As the
piston strokes upwards, oil in the upper cylinder
is expelled through the [OUT] port and returned
back to the machine.

Allied Construction Products, LLC www.alliedcp.com
SOM576778_15apr
7
4.0 Product Information –[cont’d]
The breaker is equipped with a gas-charged
accumulator. Inside this self-contained pressure
vessel is a pair of expansible chambers divided
by an elastic membrane. The top chamber is pre-
charged with nitrogen gas (N2). The bottom
chamber will receive, store and discharge
pressurized oil.
As the piston nears the top of its stroke, signal
ports inside the cylinder become pressurized and
shift the operating valve closed. Oil is blocked
from exiting and the upper end of the cylinder
becomes pressurized.
The final half of the cycle begins with the piston
at the top if its stroke. The force from the
pressurized oil from the host machine combines
with the pressurized oil discharged stored in the
accumulator. The piston is driven downward until
it impacts the tool.
The cycle is continuous without interruption until
the machine operator releases the momentary
switch controlling the ON/OFF valve.

Allied Construction Products, LLC www.alliedcp.com
SOM576778_15apr
8
5.0 Sizing the Breaker
5.1 Breaker Selection - General
When selecting a breaker, key points to consider
include –
Production rate (Material strength)
Lifting capacity of machine
Hydraulic power of machine
The size of the breaker is typically dictated by the job
requirements, but the size must also be compatible
with the carrier on which it will be mounted.
For optimum productivity, match the size of the
breaker to the job. Materials are fractured by two
methods – Penetrative and Impact. With penetrative
breaking, blows from the piston drive the tool into the
material and wedge it apart. With impact breaking,
blows from the piston generate a compressive force
that squeezes the material. When the material's
strength is exceeded, it fractures.
Be careful not to undersize the breaker in hard
material. It's important that the material absorb all of
the energy (mechanical stress wave). Problems arise
when these undesirable waves of energy are
reflected back into the breaker.
Ideally, it should take 3- 5 seconds to fracture the
material. When working in extremely hard materials,
undersized breakers will be subjected to longer
running cycles. This negatively impacts production,
component longevity and reliability. Continuous
running beyond 15 seconds will generate unwanted
heat at the tip of the tool. Attention to wear parts,
such as bushings and tools, will need to be more
frequent. The machine’s service intervals will also
require extra attention.
Reaching optimal production rates requires efficient
interaction between the operator and machine. A
machine that is undersized will force the operator to
work at a slower pace to keep the machine stable. An
undersized machine also reduces the size of the
material it can shuffle when repositioning materials.
Allied breakers are assigned a recommended carrier
weight range. On a general level, if the breaker falls
within this range, it's regarded as a good match.
To ensure the carrier can safely handle the weight of
the breaker, always consult the specifications in the
manual provided by the carrier manufacturer. Factors
such as boom and stick length, undercarriage and
tracks, counterweights, etc., all affect the lifting
capacity of the carrier. Check the machine for any
modifications and also take into account any add-ons
such as a quick attach coupler.
Next, review the hydraulic specifications of the carrier
and breaker. All hydraulic breakers are designed to
provide optimum performance with reliable service
life at a specific oil pressure and flow range. For a
combination to be successful, the circuit must be in
good working condition and able to deliver adequate
flow and pressure with minimal heat generation and
power loss.
Before the breaker is used, complete a performance
evaluation of the hydraulic circuit. These test results
will confirm if the hydraulic circuit is calibrated and set
in accordance to the specifications of the breaker.
Tools required for testing the oil flow, operating
pressure and back pressure include a flow meter and
pressure gages. An overview of the testing
procedure, along with a form to record the results of
the flow test, can be found in the Technical Data
section in this manual. Compare test results with the
specifications of the breaker. Make all necessary
adjustments.
5.2 Auxiliary Circuit and Conversion Kits
CAUTION
Equipment damage from improper oil
flow or pressure. Accurate calibration
of the hydraulic circuit is important for
reliable operation.
Hydraulic circuits differ between machines. Only
qualified personnel, having knowledge of the
machine’s systems, proper test equipment and tools
should perform conversion set-up and adjustments.
Work tools, such as Breakers, are not self-powered.
Their performance is reliant upon the hydraulic power
of the host machine. The hydraulic power it provides
to the breaker must meet all of the requirements
specified in the technical data section of this manual.
Most machines will require some degree of
conversion to make use of their hydraulic power. A
hydraulic circuit, capable of producing flow and
pressure in one direction is needed to operate a
breaker.

Allied Construction Products, LLC www.alliedcp.com
SOM576778_15apr
9
5.0 Sizing the Breaker – [cont’d]
Conversions to machines equipped with a factory or
dealer installed auxiliary circuit may require little more
than minor adjustments to flow and pressure settings.
Follow the machine manufacturer’s instructions when
making any adjustments.
If the machine is not equipped with a hydraulic circuit,
a conversion kit, from Allied, can be installed. When
necessary, Allied conversion kits include the Allied
"AC" series valves. These are solenoid-operated
valves that control flow and pressure.
Fig 5-1 Allied Conversion Kit With AC-Series Valve
The process of selecting the right breaker must
consider the type of work to be done. This includes
any special needs such as required modifications
when working in underwater applications
Requests for further information or assistance with
breaker selection should be directed to your Allied
dealer or by contacting the Allied Sales or Product /
Technical Support Departments.