Allied HO-PAC 700B Guide

Thoroughly read and understand the content of this manual before using the Allied HO-PAC. 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.
TM576981
Vibratory Plate
Compactor /
Driver
Model
700B
Safety, Operation, Maintenance and Parts

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Contact Information
3900 Kelley Ave
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 gures, captions,
descriptions, remarks and specications, describe the product at the time of its printing, and may not reect the product in the
future. When changes become necessary, these will be noted in the table below. Specications 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 specications without prior notication. For document updates
go to www.alliedcp.com .
Table of Revision History for TM576981
Effective Date Page Summary of Change
2018, Feb iv,v,7,13,17,23 Misc. corrections
2015, Jan 23 Revisions to Table 12.2
2013, Dec Original Issue
Notes

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ii
Safety Information
Safety Statements and Hazard Alerts
Safety messages appear throughout this manual and
on labels afxed 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
Fig. S-1
ATTENTION, BECOME ALERT, YOUR SAFETY IS
INVOLVED.
Fig. S1. The exclamation point within an equilateral
triangle is the safety alert symbol. This symbol, either
used alone or in conjunction with a signal word, is
used to draw attention to the presence of potential
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
Pictograms may be used as another component of a
safety message to help further enhance the
effectiveness of the communication.
CAUTION
Burn injury from contact with hot surface.
Some components become hot during
operation. Allow parts and uids to cool
before handling.
Fig. S-2 Components of a Typical Safety Message
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.

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Safety Information – [cont’d]
Meaning of Pictograms
Pictograms are used to rapidly communicate
information. For the purposes of this manual and
labels afxed to the Allied equipment, pictograms are
dened as follows:
Read the manual before use.
Refer to the manual for further
details or procedures.
Read the Service Manual For
Additional Information
Shut off power & remove key
before servicing
Fragments / debris becoming
projectiles.
Install protective guards on cab
to shield operator against
fragments / debris
Personnel must always
maintain a safe distance from
the work tool, work zone
Identies lift point
Personal Protection Equipment
Hearing protection
Safety eyewear
Gloves
Safety shoes
Falling object
Unsupported loads
Crush point / Falling part
Electric Shock
xFalls into open
excavations
xTrench collapse
Gas / Oil under pressure
Hot surfaces
Fluid injection
Prohibited actions must be
avoided to prevent injury
and/or equipment damage
Illustrations used to depict
prohibited actions are identied
with the X-out or a circle with a
diagonal slash.
Actions that are recommended
and approved are identied
with the check mark symbol.

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Safety Information – [cont’d]
Safety, Identication and Information Labels
Information labels afxed to the Allied equipment
include safety warnings, identication and
instructions important to operation and service.
Keep all safety labels clean. Words and illustrations
must be legible. Before operating this equipment,
replace damaged or missing labels. Refer to the parts
section for ordering information. Refer to Figure “S-3”
for their location on the equipment.
Table S.1 Labels
Fig Label Description
L1 Read the Manual - Decal indicates that it is important to read the
manual for detailed explanations and instructions
L2 Stay Clear - Decal alerts personnel and by-standers to maintain a safe
distance from the Allied work tool during operation.
L3 Hot Surface - Decal identies components of the Allied work tool that
may become hot during operation.
L4 Lift Point- Decal identies approved lift points of the Allied work tool.
L5
Pressure Line Marker – A red colored cable tie marked “PRESSURE
IN” is attached to the SUPPLY hose of the Allied work tool for ease of
identication between hoses.
L6 ALLIED Logo – This decal is the Allied brand identifier and is a
registered trademark of Allied Construction Products, LLC.
L7 HO-PAC®Product Identication – HO-PAC is a registered trademark of Allied
Construction Products, LLC used for identifying the hydraulic vibratory
plate compactor / driver.
L8 700B Model Identication - Decal indicates the model of the Allied work tool.
L9 Made in USA
L10
Equipment Identication - Manufacturer’s Name and Address, Product
Name, CE compliance marking, Model Number, Serial Number, Year of
Manufacture, and Mass

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Safety Information – [cont’d]
Fig. S-3 Label Positions for 700B Ho-Pac
Table S.2 Information Labels
Item Type Description Part No. Qty Remarks / Specications
--- --- Decal Set 576980 1-Set Set includes 1-9
L1 Safety Label - Read Instructions / Manual 676984 2
L2 Safety Label - Stay Clear 840156 2
L3 Safety Label - Hot Surface 676983 1
L4 Safety Label - Lift Point 676982 4
L5 Info Tag - Pressure I.D. 818676 1 Located on Supply Line
L6 ID Label - Allied Logo 676653 2
L7 ID HO-PAC®577554 2
L8 ID Label - Model 700B 576979 2
L9 ID Label – Made In USA 815696 1
L10 ID Tag – Equipment ID 676980 1 Item L10 not included in set
R700B

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vi
Safety Information – [cont’d]
Qualied Person
For the purposes of this manual, a qualied person is
an individual that has successfully demonstrated or
completed the following:
xHas read, fully understands and adheres to all
safety statements in this manual.
xIs 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.
xHas completed adequate training in safe and
proper installation, maintenance and operation of
this Allied equipment.
xIs 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 more and operation-
specic.
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 afxed 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:
xLocating existing underground service and utility
lines
xEstablishing pedestrian barriers
xUsing 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. Identication
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
ofce or write:
U.S. Government Printing Ofce 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 qualied 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 qualied 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.

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vii
Safety Information – [cont’d]
Operational Safety Program
The safe and efcient 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 Protective 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, ying 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 identied 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 tted 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 ying 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 Modications
In order to provide and maintain efcient 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 t and quality, or may impair
function, safety and performance. The Allied
equipment shall not be modied or used in
unapproved applications unless written consent is
received from the Allied Engineering Department.

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viii
Table of Contents
SECTION Page
Contact Information & Document Revisions i
Safety Information……………………...…..…… ii
Safety Statements & Hazard Alerts....……..…… ii
Purpose of Safety Messages……………....…… ii
Safety Alert Symbol ..……………..……… ii
Signal Words – “DANGER”, “WARNING” and
“CAUTION”……………………………….……… ii
Non-hazardous Type Messages……………..… ii
Meaning of Pictograms Used in This Manual… iii
Safety, Identication and Information Labels iv
Qualied Person………………………..……… vi
Owner’s Responsibilities……………...…..…… vi
General Construction Safety…………..…. vi
Federal, State, Local and OSHA Construction
Guidelines and Regulations………………….... vi
Operational Safety Program………………..….. vii
Personal Protective Equipment (PPE)………… vii
Protective Equipment - Guarding……………… vii
Unapproved Equipment Modications………… vii
Table of Contents…………..…………...…….. viii
List of Figures….………………….…….…...… ix
1.0 Introduction & Scope……..………..……… 1
1.1 Purpose of This Manual…………..…….…. 1
1.2 About This Manual………………….…….… 1
1.3 How to Order Replacement Publications… 1
1.4 Related Publications………………………... 1
2.0 Product Identication………………….….. 2
2.1 Where to Find the Serial Number………… 2
2.2 Equipment Identication Tag…………..….. 2
2.3 Owner's Record of the Equipment………… 2
3.0 Warranty Protection Summary………...… 3
3.1 Overview…….…………………….…...…….. 3
3.2 Owner’s Responsibilities..………….……..... 3
SECTION Page
3.3 Allied Product Policies………..…………….... 4
4.0 Product Information.………………….……. 5
4.1 Description and Application………..…...… 5
4.2 Familiarization of Major Subassemblies…. 5
4.3 Principle of Operation…………….……..….. 5
5.0 Ho-Pac Selection and Application....….…. 6
5.1.1 Match Compactor Type w/ Application…. 6
5.1.2 Size the Ho-Pac to the Carrier……..……. 6
5.1.3 Other Carrier Criteria……………………… 6
5.2 Carrier With Auxiliary Hydraulic Circuit…… 6
5.3 Conversion Kits…………………………….. 6
6.0 Mounting Information….………………….. 7
6.1 Mounting Frame and Bracket…….…..….…. 7
7.0 Install / Uninstall Work Tool………..…..… 8
7.1 Attach Work Tool to carrier….….……..…… 8
7.1.2 Tools Required…………….….………….. 8
7.2 Connect Supply & Return Lines....….…….. 8
7.3 Remove Work Tool From Carrier…………. 9
8.0 Operation..………………………..………… 10
8.1 Pre-operation Checks………….….……..… 10
8.2 Operation………………..…………………... 10
9.0 Care & Maintenance….......………….. 12
9.1 Maintenance Schedule…………..…… 12
9.2 Safety Precautions During Inspection 12
9.3 Daily Maintenance……………………… 13
9.4 Check Carrier's Oil Level & Quality….. 13
9.5 Threaded Fasteners……….………...… 13
9.6 Conditional Maintenance…………….… 15

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Table of Contents - [cont’d]
SECTION Page
9.7.1 Bearing Lubrication……………..…..…… 14
9.7.2 How To Check Bearings………....……… 14
9.7.3 Bearing Replacement………………..…... 14
9.7.4 Bearing Removal………………..………. 14
9.7.5 Bearing Installation……………..…..….… 14
9.8 Spring Mount Replacement………..…....… 14
9.9 Tightening Torque…………………...….….. 15
10.0 Lifting, Transport & Storage………….... 17
10.1 Lifting & Transport Precautions….....…… 17
10.2.1 Transport Independently of Carrier…... 17
10.2.2 Transport Attached to Carrier……....…. 17
10.3 Storage…….…………….…..…………….. 17
11.0 Troubleshooting……………….…….…... 18
12.0 Technical Information…………………… 19
12.1 Testing the Hydraulic Circuit……….…..…. 19
12.2 Oil Pressure Check………………………. 20
12.3 How To Measure the Oil Pressure…..….. 20
12.4 Denition of Hydraulic Terms……………. 20
12.5 Motor Options……………………………… 21
12.5.1 How to Identify the Different Motors…. 21
12.6 Motor & Valve Combination….……..…... 22
12.7 Control Valve Adjustment, Function,
Identication & Port Connections………….…. 22
12.7.1 Control Valve Adjustment…………….. 22
12.7.2 Control Valve Function………………… 22
12.7.3 Control Valve Identication & Port
Connections…………………………………….. 22
12.8 General Specications..………..…..…….. 23
12.9 General Dimensions…………………….. 24
13.0 Spare Parts Information………………… 30
List of Figures Page
S1 Safety Alert Symbol……………..………… ii
S2 Safety Message Presentation – Typical….. ii
Pictograms………………………..……………. iii
Read Instructions………………………………. Iv
Stay Clear………………………….…………….. Iv
Lift Point………………………………………….. iv
Hot Surface……………………..……………….. iv
Pressure Line……..………………………….….. iv
Model Identication…………………………….. iv
Equipment Identication Tag……………..…… iv
S-3 Placement of Labels on Equipment… v
2-1 Location of Equipment Serial Number 2
2-2 Equipment Identication Tag…………. 2
4-1 Major Subassemblies……………...…. 5
5-1 Allied Conversion Kit with AC Series Valve 6
6-1 Flat Top Frame and Mounting Bracket…... 7
7-1 Supply & Return Hose Connection……… 11
7-2 Hose Routing Restriction Check…………… 14
9-1 Position of Threaded Fasteners………….. 15
9-3 Bolt Head Markings……………………….. 16
9-4 Tightening Sequence……………………. 16
12-1 Flow-Pressure Diagram……….……..….. 21
12-2 Motor Rotation…………………..………… 22
12-3 Valve Identication………………………. 22
12-5 Hose Connections………………………. 24
12-6 General Dimensions – Flat Frame..…….. 24
13-1 Parts View – Std. 700B Ho-Pac…………. 25
13-2 Parts View – Dynamic Assembly………. 26
13-3 Parts View – Motor………………………… 27
13-4 Parts View – Valve………………………. 27

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1
1.0 Introduction & Scope
1.1 Purpose of this Manual
This manual has been prepared in support of the
product named in Table 1.1 and is intended to assist
the operator and maintenance personnel with the
information necessary for the safe and proper use of
the Allied equipment.
The spare parts list is also included in this manual.
Illustrations depicted in the Parts Information Section
are for purposes of parts identication and are not
intended for use in repair or service of the equipment.
Material presented in this manual may show
equipment that is optional. Figures, captions, parts
tables and descriptions are intended solely for use
with the product identied in Table 1.1 and may not
be suitable for other models.
1.2 About This Manual
Table 1.1 About This Manual
Document ID No. TM576981
Type Safety, Operation and
Maintenance
Current Status See Inside Cover
Product Name: Ho-Pac
Generation (Series) III
Applicable Model[s]: 700B
Years of Manufacture: 2013 & above
This document is published 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.
Prior to using, conrm that the information recorded
on the Equipment’s Identification Tag corresponds
with the model information located in Table 1.1.
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 been made to provide
information as complete as possible. However,
continuous improvement of our products is an Allied
policy. The material in this publication, including
gures, captions, descriptions, remarks and
specications, describe the product at the time of its
printing, and may not reect the product in the future.
A summary of changes made to the content of this
document can be found on the inside cover of this
manual.
1.3 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.
Replacement manuals can be ordered by contacting
your local Allied dealer or the Allied Customer
Support Department. See inside cover for contact
information.
1.4 Related Publications
Related publications for the product identied in
Table 1.1. include the following:
1.4.1 Manual PN-103467 Swivel Option
The optional swivel assembly permits precise
positioning of the Ho-Pac without repositioning of the
carrier. Turning the swivel is done manually. Content
in the Manual includes:
xSafety Information
xApplications/Intended Use
xMounting Information
xAttaching To/From Carrier
xTechnical Data/General Dimensions & Weights
xPre-use Inspection
xOperation
xMaintenance/Lubrication/Repair
xTroubleshooting
xLifting, Transport & Storage
xSpare Parts Information
1.4.2 Compaction Handbook 103392
The Compaction Handbook contains:
xBackground information about soil, soil
compaction and basic overview of different types
of soil compaction equipment.
xGeneral information on operating techniques for
vibratory plate compactors / drivers
xPerformance data for Ho-Pac models derived
from eld tests.

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2
2.0 Equipment Identification
2.1 Location of the Serial Number
Fig. 2-1 Equipment Identication
Refer to Figure 2-1. The Serial Number assigned to
this equipment can be found in the following
locations:
1. On the Equipment ID Tag
2. Stamped in the eccentric housing – motor side.
2.2 Equipment Identification Tag
Refer to Figure 2-2. The Equipment Identication Tag
is afxed to the top mounting frame. It provides the
following useful information:
xManufacturer’s name
xAddress
xProduct name
xModel number
xSerial number
xYear of manufacture
xMass
Fig. 2-2 Equipment Identication Tag
Verify that the information contained on the Tag
corresponds with the information provided in Section
1 of this manual.
2.3 Owner’s Record of the Equipment
Your local Allied dealer requires the Product Name,
Model and Serial Number to better assist you with
questions regarding parts, warranty, operation,
maintenance, or repair. This information should be
copied from the Equipment Identication Tag to the
space provided below.
xIndicate the date in which the Allied equipment
was placed into service.
xFill out the Warranty Registration form and return
to Allied Construction Products, LLC.
Product Name: Ho-Pac
Model: 700B
Part Number: 576889 (XR/BR Cong)
Serial Number:
In Service Date:
Registration Date

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3
3.0 Warranty Protection Summary
3.1 Overview
The Allied work tool is delivered assembled,
lubricated, and factory tested. Upon receipt of the
equipment, inspect for possible shipping damage.
For every new Ho-Pac, Allied requires that a
Warranty Registration form be lled out. The form
provides a section for information about the host
machine that the work tool will be installed on.
Complete all sections of the form and return to Allied.
Use of non-Allied parts, unapproved service
methods, modications to the Allied equipment, or
installation, operation and maintenance, not in
accordance with the instructions outlined in this
manual may cause equipment failure or personal
injury.
For details regarding warranty terms and conditions,
refer to document A100668.
3.2 Owner’s Responsibilities
When properly installed, operated and maintained by
qualied personnel, the Allied work tool will remain
productive with a minimum of service.
Keep the Allied equipment operating within its
performance limits by familiarizing yourself with the
specications provided in the technical data and
specications tables. Improper installation, including
failure to calibrate the carrier correctly may result in
loss of performance or subject the equipment to
conditions beyond their design.
The following outlines general maintenance policies
required for all Ho-Pac models. The owner is strongly
encouraged to adopt these general guidelines and
further develop them in order to manage particular
applications and operating environments.
Ensure that personnel entrusted with installation,
operation, maintenance and transporting of the Allied
equipment adhere to the following:
xRead and thoroughly understand the information
and procedures detailed in this manual.
xUnderstand proper operating techniques for all
recommended applications.
xUse the Allied attachment only if it is in sound
operating condition. Take prompt action to rectify
any faults that, if left uncorrected, could lead to
personal injury or further damage.
xUse the Allied attachment only for the purpose for
which it is intended.
xUnderstand that particular applications, such as
working underwater, will require modications to
the standard breaker and additional training for
operation and service.
xAppoint Who Does What. Ensure that all
personnel understand what their specic
responsibilities include.
1. Establish maintenance responsibilities to be
performed by the OPERATOR.
2. Establish maintenance responsibilities to be
performed by the SERVICE TECHNICIAN.
xRecognize problems and know how to take
corrective action as detailed in Troubleshooting
Section 11.
xConduct regular checks and inspections as
scheduled in the Care & Maintenance Section 9.
xAllow only qualied operators and Allied trained
service technicians to perform maintenance and
repair as specied in the care and maintenance
schedule.
xUse only genuine Allied replacement parts and
recommended lubricants to protect total warranty
coverage.
xMaintain written records of equipment
maintenance, service and repair. These records
are helpful if warranty coverage is ever in
question.
xEach record shall include at least:
xDate of service, maintenance or repair.
xDescription of the service, maintenance or
repair performed. Include part numbers if
applicable.
xCopies of purchase order(s) and invoice(s)
for repair parts and service.
xThe name and signature of the person
performing the service, maintenance or
repair.

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4
3.0 Warranty Protection Summary [cont’d]
3.3 Allied Product Policies
In this manual, Allied recommends Ho-Pac
applications, maintenance and service consistent
with industry practices.
Allied assumes no responsibility for the results of
actions not recommended in this manual and
specically the results of:
xImproper Training
xImproper Installation
xOperation in unapproved applications
xIncorrect operation
xInadequate maintenance
xUse of non-genuine Allied replacement parts
xUnapproved modifications
These exclusions apply to damage to the Allied
equipment, associated equipment and injury to
personnel.

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4.0 Product Information
4.1 Description and Application - Typical
The Allied Ho-Pac is a boom-mounted, hydraulic
powered, vibratory plate compactor and driver. It is
used for soil compaction and sheet/pile installation.
The Ho-Pac is designed for mounting on mobile
equipment with hydraulic booms, such as rubber tired
or track-type construction vehicles and is attached to
the carrier in the same manner as mounting a bucket.
The Ho-Pac operates off the host machine's hydraulic
system and reaches out to work anywhere the
machine's boom can reach.
Applications include backll compaction, base course
preparation, nish surface treatment and
embankment buildup.
The Ho-Pac can also be an effective sheet or pile
driver. Vibration energy is transferred through the
sheet or pile to the soil. Soils with 50% or more
granular content are “liquefied” by the vibration,
which breaks the skin friction, allowing the sheet or
pile to penetrate more easily. Refer to the
Compaction Manual for further details.
4.2 Familiarization of Ho-Pac Components
Fig. 4-1 Main Components and Subassemblies
Major subassemblies of the Ho-Pac include:
Mounting Frame – The Mounting Frame serves as
the connection point used to attach the Ho-Pac to the
stick / linkage of the carrier.
Suspension System – Rubber Spring Mounts
suspend the Dynamic Assembly from the Mounting
Frame. They isolate the vibratory energy from
transferring to the carrier and operator.
Dynamic Assembly - Generates and transfers the
vibratory energy to the soil. The assembly includes
the hydraulic motor, bearings, eccentric mass,
housing and compaction plate.
Control Valve – All Ho-Pac models come standard
with the multi-function control valve. Benets include
optimized operation with improved reliability of critical
components such as the motor and bearings.
NOTE:The valve is factory pre-set and requires no
further adjustments.
The control valve performs the following functions:
xFlow regulator - Prevents over-speeding the
hydraulic motor.
xPressure control – Protects the motor and other
hydraulic components from over-pressure. This is
factory pre-set at the maximum operating
pressure plus 200 psi (14 bar).
xAnti-cavitation circuit - Controls deceleration of
the hydraulic motor and eccentric mass. Also
protects motor from damage on circuits not set
up with an open return.
xReturn line check valve - Prevents reverse ow
to the hydraulic motor. Also provides a nominal
back-pressure to ensure the proper operation of
auxiliary valves, such as Allied’s AC40 and AC75
priority ow control valves.
4.3 Principle of Operation
The vibratory action is generated by the eccentric
movement of the out of balance weight, driven by the
hydraulic motor turning at a high rpm.

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5.0 Ho-Pac Selection and Application
5.1 Match Compactor Type to Application
The Allied Ho-Pac is a vibratory plate compactor,
designed for mounting on mobile equipment with
hydraulic booms, such as rubber tired or track-type
construction vehicles. It is best suited for compacting
granular type soils by combining three actions:
xImpulse Force
xVibration Frequency
xDown Pressure (Static Weight)
5.1.2 Size the Ho-Pac to the Carrier
The task of choosing the right carrier with the right
capabilities (reach, lift and hydraulic capacity) is
important if you are to achieve optimum results.
Select the Ho-Pac size that will work best with the
size of the carrier. If too small for the carrier, the
compactor will be damaged by the carrier, while a
compactor too large will damage an undersized
carrier.
5.1.3 Other Carrier Criteria
xSelect a size with sufcient reach to compact the
deepest area of the trench or excavation.
xKnow how your machine is equipped and if any
modications have been made. Factors such as
boom type, stick length, undercarriage, tracks,
counterweights, etc., all affect the lifting capacity
of the carrier. Also take into account any add-
ons, such as a quick attach coupler. Consult the
carrier manufacturer's manual for specifications.
xSelect a carrier equipped with a one-way
hydraulic circuit that's capable of proper ow and
pressure.
xSelect a carrier that will provide adequate down
pressure without loss of hydraulic power to the
Ho-Pac. If the carrier cannot maintain the power
required, the proper density will not be reached.
Undersized compactors (as well as underperforming
compactors) are less economical to use because
compaction is limited to smaller lifts and additional
passes. This generates other inefciencies as longer
running cycles result in loss of time and increased
energy consumption and component wear.
Optimum efciency is only obtained when proper
operating technique is employed. How many passes
it will take, along with the duration, will vary with
material type and lift. Additional ll material and
repositioning of the carrier may be required to
achieve a nished surface.
5.2 Carrier With Auxiliary Hydraulic Circuit
CAUTION
Hydraulic circuits differ between
machines. Improper oil ow or pressure
can damage the Ho-Pac or carrier. Only
qualied personnel, having knowledge
of the machine’s systems, proper test
equipment and tools should perform
conversion set-up and adjustments.
The Ho-Pac and other hydraulic work tools are not
self-powered. Performance hinges upon the ability of
the host machine's hydraulic circuit to meet critical
ow and pressure demands.
Generally, most machines will require some degree
of conversion to make use of their hydraulic power.
Conversions to machines equipped with a factory or
dealer installed auxiliary circuit, however, may require
little more than minor adjustments to ow and
pressure settings.
Carefully follow all instructions, including those
provided by the machine manufacturer, when making
adjustments.
5.2 Conversion Kit for Carrier without Hydraulic
Circuit
Fig 5-1 Allied Conversion Kit with AC-Series Valve
Allied conversion kits are available for almost any
carrier. For machines without an auxiliary hydraulic
circuit, the kit may include an "AC" series valve.
These solenoid-operated valves will control ow and
pressure to the work tool.
Requests for further information or assistance with
Ho-Pac selection or conversion kits should be
directed to your Allied dealer or by contacting Allied
Sales or Product Support Departments.

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6.0 Mounting Information
6.1 Mounting Frame and Mounting Bracket
Fig. 6-1 shows the "Flat-Top" mounting frame with a
pin-on type mounting bracket. The bolt set (furnished
with the Ho-Pac) fastens the bracket to the top frame.
Once fastened to the Flat-Top frame, the Ho-Pac can
be attached to the carrier in the same manner as
mounting a bucket. Allied offers an array of mounting
brackets (sold separately) to t virtually any carrier,
including those equipped with pin-grab or hook-type
quick mounting couplers.
IMPORTANT
Complete information about the carrier is required
when ordering mounting brackets (sold
separately). This includes the make, model, series
and serial number. Additional information is
required if the carrier is equipped with a quick
coupler.
Holes drilled in the Top frames are patterned to
accept Allied brackets (sold separately). In Table 6.1,
the various bolt hole patterns used by each Ho-Pac
model is identied and grouped into a "Family" type.
Other work tools from Allied, including hydraulic
breakers, share the same family of hole-patterns.
Dimensions for XR/BR bolt hole-patterns are located
in Section 12 of this manual.
Fig. 6-1 Flat Top Frame and BR Mounting Bracket
NOTE: Allied brackets are typically designed to utilize
the carrier’s bucket pins.
Table 6.1 Flat Top Mounting Family & Hardware
Family Ho-Pac Model Bolt FL Washer Nut Bolt Set
XR 400B, 700B 572711 (x4) 816359 (x8) 817491 (x4) ---
BR 700B, 1000B 902515 (x8) 719015 (x16) 865325 (x8) 574818
Follow proper tightening procedures and torque.

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7.0 Install / Uninstall Ho-Pac
7.1 Attach the Ho-Pac to Carrier
The Ho-Pac is attached to the carrier in the same
manner as mounting a bucket. Use standard
mechanic’s techniques and tools. The described
installation is for a typical pin on type. Procedures
may vary and you should always follow the
instructions in the manual that is provided by the
carrier manufacturer.
For carriers equipped with a quick coupler, refer to
the owner’s manual furnished by the coupler
manufacturer for instructions.
7.1.2 Tools Required to Mount Ho-Pac On Carrier
No special tools are required, but the following tools
should be available:
xPPE including Safety eyewear & gloves
xSledge Hammer
xDrift pin / Alignment bar
x3/4 drive socket wrench
x3/4 drive metric sockets
xGrease gun
xStandard & Metric open end wrenches
xRags
xSuitable container to collect fluids
CAUTION
Personal protection equipment required
when handling. PPE should include
appropriate clothing, gloves, safety
eyewear and shoes.
CAUTION
Some procedures, such as attaching the Ho-Pac to
and from the carrier, will require an assistant. Both
the operator and assistant must be qualied in these
procedures. All directions and signals must be
agreed upon in advance.
CAUTION
Crush injury. Keep hands, feet and other
body parts clear of crush points. Use
sufcient blocking and restraints to avoid
accidental or sudden movement of loads.
With the bucket removed, install the Ho-Pac to the
carrier in same manner as mounting a bucket.
Installation procedures can vary. Mounting bracket,
hardware, pins and adapters may be furnished with
the Ho-Pac or supplied in the mounting kit.
The following describes basic procedures used to
mount a Ho-Pac to a machine equipped with a typical
pin on type mounting arrangement.
The machine operator and an assistant shall perform
the following procedure:
1. Operator: Move carrier and Ho-Pac to a rm level
surface. Position the Ho-Pac with the hose side
toward the carrier.
2. Assistant: Check that the Ho-Pac is stable and all
loads are supported.
3. Operator: Maneuver the stick in between lugging
of the mounting bracket. Align the stick pin holes
to the mounting bracket holes.
4. Assistant: Clean pins of rust and debris before
they are installed. Insert the stick pin and secure
with keepers.
5. Repeat procedure for installing link pin.
6. Lubricate pins.
7.2 Connect Pressure and Return Lines
IMPORTANT
Contamination can diminish service life. Prevent
contaminating the oil. Always clean the area around
connections prior to opening the hydraulic system.
IMPORTANT
Exercise extreme care to ensure uids are collected
in a suitable container when opening the hydraulic
system. Clean up spilled uids and obey all local
regulations for the disposal of these uids.
1. Connect Supply [IN] and Return [OUT] hoses to
carrier’s hydraulic circuit.
CAUTION
Hydraulic circuits differ between
machines. Improper set up can
damage the Ho-Pac or carrier. Only
qualied personnel, having knowledge
of the machine’s systems should
install.
Identify whether the carrier's pressure line is located
on the right-hand or left-hand side. Do not guess. The
Ho-Pac will not operate if these hoses are crossed.

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7.0 Install / Uninstall Ho-Pac
IMPORTANT
For ease of identication, the supply hose is tagged
with a red colored cable tie and marked “PRESSURE
LINE”.
Fig. 7-1
Supply hose tagged with [Pressure Line]
Supply hose connection to valve port [P1]
Return hose connection to valve port [T2]
IMPORTANT
The Ho-Pac is equipped with a control valve. For
ease of identification, the valve body is stamped
with the part number and the ports are stamped
P1, P2, T1 and T2.
2. Raise the Ho-Pac off the ground and operate the
bucket cylinder to ensure hoses will not be
pinched or restricted.
Fig. 7-2 Check hose length & routing for unrestricted
movement
3. Briey test Ho-Pac for proper operation. Stop and
check for hydraulic leaks. Tighten hoses and
connections as necessary.
IMPORTANT
Read, understand and follow the instructions
included with the installation kit. The installation is
not complete until the hydraulic circuit is tested for
ow and pressure. Tools required for testing include
a ow meter and pressure gages. Test procedures,
along with a form to record the results of the ow
test, can be found in the Technical Data section of
this manual. Questions regarding testing
procedures should be directed to Allied Technical
Service.
7.3 Remove the Ho-Pac From the Carrier
CAUTION
Some procedures, such as attaching the Ho-Pac to
and from the carrier, will require an assistant. Both
the operator and assistant must be qualied in
these procedures. All directions and signals must
be agreed upon in advance.
CAUTION
Burn injury from contact with hot uids
and surfaces. Some machine
components become hot during
operation. Allow surfaces and uids to
cool before handling.
CAUTION
Fluid penetration hazard. Release
pressure trapped in hoses before
disconnecting. Wear appropriate
protective equipment including safety
eyewear and gloves.
IMPORTANT
Exercise extreme care to ensure uids are
collected in a suitable container when opening the
hydraulic system. Clean up spilled uids and obey
all local regulations for the disposal of these uids.
1. Position Ho-Pac on stable ground.
2. Disconnect hydraulic connections.
3. With loads adequately supported, remove
mounting pins and hardware.
4. Keep mounting hardware with Ho-Pac to avoid
loss or damage.

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8.0 Operation
8.1 Pre-operation Checks
IMPORTANT
The Allied Ho-Pac is designed to provide optimum
performance with reliable service life at a specic
ow range and oil pressure. Prior to its rst use on a
machine, it’s important to test the hydraulic circuit.
Operating the Ho-Pac beyond its performance limits
will cause equipment damage. Follow the accepted
specications listed in Technical Data Section of this
manual.
CAUTION
Repair or replace any damaged components prior to
operation. Do not operate Ho-Pac until all faults are
corrected.
For safe and proper operation, perform a thorough
daily inspection of the equipment before use.
Daily, before operating:
1. Ensure Ho-Pac is securely attached to the
carrier. Check mounting pins and hardware for
wear or damage.
2. Excessive dirt and debris on the Ho-Pac can
decrease performance and should be removed.
3. Inspect the following for damage:
xInspect rubber of spring mounts for cracks or
separation from end plate
xInspect hoses, seals, motor and valve for oil
leaks
xCheck for loose or missing fasteners
NOTE: Further maintenance details are located in
Section 9 of this manual.
8.2 Operation
CAUTION
Injury from ying debris. Do not
operate the Ho-Pac with workers in
close proximity of work zone.
Clear all personnel from work area
before the Ho-Pac is operated.
CAUTION
Injury from ying debris. Personal
protection equipment, including safety
eyewear, must be worn when operating
or servicing this equipment.
Prolonged exposure to high noise levels
may risk hearing impairment or loss.
Hearing protection must be worn when
equipment is in operation.
WARNING
Injury from falls into open excavations.
Establish pedestrian barriers around
open excavations. Ground vibrations
may collapse trench walls.
Excavations must be shored to meet federal, state
and local guidelines.
CAUTION
Never activate the Ho-Pac unless the operator is
seated in the operator’s seat and in full control of the
machine. Follow instructions in the operator's
manual provided with carrier.
1. Position carrier in-line with direction of work.
2. Position the Ho-Pac parallel to the work surface
and within view of the operator. The compaction
plate must be in full contact with the work surface
for maximum effectiveness.
3. Activate the Ho-Pac with the switch located in the
operator’s cab.
4. Use the carrier to push down on the Ho-Pac. This
will not only transfer the vibratory energy more
effectively to the soil but also provides a static
pressure which assists in the compaction.
5. The spring mounts can be stretched to
approximately one-half (1/2) their width.
IMPORTANT
Overstretching the rubber springs causes premature
failure. The spring mounts can be stretched to
approximately one-half (1/2) their width.