Allied Ho-Pac 1000C Guide

Vibratory Plate
Compactor/Driver
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. SOM578585

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Contact Information
3900 Kelley Ave
Cleveland, Ohio 44114 Tel: [phone]
E-mail: [email protected] Fax: [phone]
Revision History for Document 573833
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 notication. Specifications are based on
published information at the time of publication. Go to www.alliedcp.com for product or document updates.
Effective Date Page Summary of Change
Feb 16, 2018 Original Issue

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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 contained in the safety
message 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
The information provided in the safety message is
important for your safety. These messages provide
instructions on how to avoid injury from potential
hazards associated with improper use, operation or
handling of the Allied equipment. Read and follow the
instructions in each safety message. Be aware of the
consequence if these instructions are not followed.
Safety messages provide 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
ATTENTION, BECOME ALERT, YOUR SAFETY IS
INVOLVED.
Fig. S1
Fig. S1. The exclamation point within an equilateral
triangle is the safety alert symbol. This symbol, either
used alone or with a signal word, is used to draw
attention to the presence of potential hazards.
Signal Words
“DANGER”, “WARNING” and “CAUTION” are used to
express the different degrees of hazard seriousness.
Learn to recognize and understand the severity and
consequence associated with each of these signal
words should a potentially hazardous condition be
encountered.
“DANGER” identies the highest degree of hazard
seriousness. Its use is limited to the most extreme
situations.
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.
CAUTION
Burn injury from contact with hot surface.
Some components of the Ho-Pac
become hot during operation. Allow parts
and uids to cool before handling.
Fig. S2 Safety Message – Typical Presentation
Non-Hazardous Type Signal Words Used for
Messages
Other signal words found in this manual are
IMPORTANT and NOTE. Text followed by either of
these will contain information messages aimed at
avoiding equipment damage and to further
emphasize instructions.
IMPORTANT – Flags information or instructions that
if not followed, may damage the equipment or
diminish the service life of components
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 / Refer to the manual for
information
Read / Refer to the Service
Manual for information
xPinch point
xCrush point
Moving part (in direction
indicated by arrow)
xFalling object
xUnsupported loads
xFalling part
xSafety shoes
Personal protection equipment
Hearing protection
Safety eyewear
Gloves
xStay clear
xMaintain a safe distance
Flying debris
Leaking uid under pressure -
injection
Hot surface
Oil / Gas under pressure
Shut off carrier & remove key
before servicing
Identies lift point
Electric Shock
xFalls into open excavations
xTrench collapse

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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 S1 Labels
Fig Label Description
L1 READ INSTRUCTIONS - 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 IDENTIFICATION – 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 1000C MODEL IDENTIFICATION - Decal indicates the model of the Allied work
tool.
L8
EQUIPMENT IDENTIFICATION TAG - Manufacturer’s Name and
Address, Product Name, CE compliance marking, Model Number, Serial
Number, Year of Manufacture, and Mass
Fig. S3 Labels applied to both sides except items 3,5 & 8

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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 personal 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 personal 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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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 and equipment damage.
Personal Protective Equipment (PPE)
Personnel operating or nearby the equipment and
exposed to the hazard of falling, ying and splashing
objects, or exposed to harmful dusts, fumes, mists,
vapors, or gases shall use the particular personal
protection equipment (PPE) necessary to protect
them from the hazard. Such PPE may include safety
eyewear, face shield, hearing protection, safety
footwear, gloves, and dust mask. Supervisors shall
review proper PPE selection and ensure PPE is
made available to personnel. Personnel are
responsible for wearing PPE as directed by the
supervisor.
Protective Equipment - Guarding
Allied equipment designed with guards shall have
guards in place when equipment is in use. Guards
are tted to the equipment to protect against unsafe
situations that could not be eliminated through design
measures. 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 hazardous condition.
Guards shall not be removed unless for the purpose
of inspection and service of components. All guards
must be reinstalled after service or adjustments are
completed. Do not operate the Allied equipment
without guards installed.
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.
To prevent accidental start up, the control switch
shall be located in a protected area that is guarded
and makes it difcult to accidently operate the Allied
work tool.
Unapproved Modications
In order to provide and maintain efcient production
and reliable service, while ensuring operator safety,
the Allied equipment may not be modied or used for
any other purpose other than, for which it was
intended. Use of the Allied equipment, other than
those specied in this manual, may place personnel
at risk of injury and/or may subject the equipment to
damage. 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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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
Before Operating any Equipment…………...…. v
Qualied Person………………………..……… v
Owner’s Responsibilities……………...…..…… v
General Construction Safety…………..…. v
Federal, State, Local and OSHA Construction
Guidelines and Regulations………………….... v
Operational Safety Program………………..….. vi
Table of Contents…………..…………...…….. vii
List of Figures….………………….…….…...… viii
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
1.4 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
3.3 Allied Product Policies………..…………….... 4
SECTION Page
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
6.0 Mounting Information….………………….. 7
6.1 Mounting Frames……….…..….…. 7
7.0 Install / Uninstall Work Tool………..…..… 8
7.1 Install On Carrier…………….….……..…… 8
7.1.2 Tools Required…………….….………….. 8
7.2 Connect Supply & Return Hoses..….…….. 8
7.3 Remove the Ho-Pac from Carrier 9
8.0 Operation..………………………..………… 10
8.1 Pre-operation Checks………….….……..… 10
8.2 Operation………………..…….…………... 10
9.0 Care & Maintenance….......………….. 12
9.1 General Maintenance……………..…… 12
9.2 Daily Maintenance……………..……… 12
9.3 Preventative Maintenance……...….… 13
9.4 Check Carrier's Oil Level & Quality….. 13
9.5 Threaded Fasteners………………...… 13
9.6 Conditional Maintenance……………… 13

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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 General Specications..………..…..…….. 22
12.6 Motor Options……………………………… 23
12.6.1 Motor Identication……………………. 23
12.7 Motor & Valve Combination….……..…... 23
12.8 Control Valve Adjustment, Function,
Identication & Port Connections……. 23
12.8.1 Control Valve Adjustment…………….. 23
12.8.2 Control Valve Function………………… 23
12.8.3 Control Valve Identication & Port
Connections…………………………………….. 24
13.0 General Dimensions…………………….. 25
14.0 Spare Parts Information………………… 26
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
L1 – L8 Placement of Labels on Equipment… Iv
2-1 Location of Equipment Serial Number 2
2-2 Equipment Identication Tag…………. 2
4-1 Major Subassemblies……………...…. 5
6-1 Flat Top Frame with Mounting Bracket…... 7
7-1 Supply & Return Hose Connection……… 9
7-2 Hose Routing Restriction Check…………… 9
9-1 Position of Washer on Spring Mount……. 15
9-2 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 Identication………………...…….. 23
12-3 Motor Rotation…………………..………… 23
12-4 Valve Identication………………………. 24
12-5 Hose Connections………………………. 24
13-1 General Dimensions – Flat Frame..…….. 25
14-1 Label Position on Equipment……………. 26
14-2 Dynamic Asy w/ attached compaction plt 27
14-4 Parts View……………………………….. 29
14-5 Motor Identication………………………… 31
14-6 Flow Valve Identication…………………. 31

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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.
Also included in this manual is the spare parts list for
this equipment. 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. TM578585
Type Safety, Operation and
Maintenance
Current Status See Inside Cover
Product Name: Ho-Pac
Generation I
Applicable Model[s]: 1000C Ser. No. 02001 & above
Years of Manufacture: 2018 & 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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2.0 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. The Equipment ID Tag located on the top
mounting frame
2. Stamped on eccentric housing.
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: 1000C
Part Number: 578250C
Serial Number:
In Service Date:
Registration Date

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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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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.
3.0 Warranty Protection Summary

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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 and 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.
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
5.1.1 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.

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6.0 Mounting Information
6.1 Mounting Frames
The mounting frame serves as the connection point
between the Ho-Pac and the carrier and is attached
in the same manner as mounting a bucket.
The Flat-Top mounting frame (Fig. 6-1) requires a
mounting bracket (sold separately). Allied offers an
array of mounting brackets to t virtually any carrier,
including those equipped with pin-grab or hook-type
quick mounting couplers.
The mounting bracket is fastened to the at plate
located on the mounting frame. Each top frame will
typically include two sets of hole patterns. Each bolt
hole pattern is teamed to a Mounting Family. Table
6.1 identies the bolt hole pattern used for each at
top frame. Other Allied work tools, including hydraulic
breakers, share these same hole patterns.
Dimensions for bolt hole patterns are located in the
General Dimensions section of this manual.
IMPORTANT
Complete information about the carrier is required
when ordering mounting brackets and kits. This
includes the make, model, series and serial
number. Additional information is required if the
carrier is equipped with a quick coupler.
Allied brackets are typically
designed to utilize the carrier’s
bucket pins. The bolt set (furnished
with the Ho-Pac) fastens the bracket
to the top frame.
Fig. 6-1 Flat Top Frame and Mounting Bracket
Table 6.1 Flat Top Mounting Family & Hardware
Family Ho-Pac Model Bolt FL Washer Nut Bolt Set
BR 1000C 902515 (5/8 x8) 865325 (x16) 719015 (x8) 574818
SR 1000C 572711 (3/4 x8) 816359 (x16) 658839 (x8) 574819
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:
xSafety 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
CAUTION
Personal protection equipment required
when handling. Protective equipment
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”. The Ho-Pac is equipped with a control valve.
Port connections have identication markings.
Fig. 7-1
Supply hose tagged with [Pressure Line]
Supply hose connection to valve port [P1]
Return hose connection to valve port [T2]
2. Raised 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 gauges. 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
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.
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.
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.
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.
The Allied Ho-Pac is a vibratory plate compactor that
is highly effective in the compaction of granular type
soils. It combines three actions:
1. Vibration – 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. Granular soils are extremely
responsive to consolidation by vibration. Soil
particles are set in motion and settle under their
own weight. The air surrounding these particles
has been forced out, which allows them to pack
closely together.
2. Impulse Force - Generated by the centrifugal
force of the rotating eccentric mass. When
properly controlled, this also gives an impact
force.
3. Down Force – A pressing force exerted on the
Ho-Pac by the carrier.

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8.0 Operation – [cont'd]
1. Clear all personnel from the work area.
2. Position carrier in-line with direction of work.
3. 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.
4. Activate the Ho-Pac with the switch located in the
operator’s cab.
5. 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.
6. 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.
7. Maintain down pressure as the material
compacts. For larger areas, decrease boom
down-force and slide the compactor over the
material with a repetitive, back and forth motion.
The initial pass is continued until compaction is
no longer apparent, typically 5 to 15 seconds.
Run the compactor until maximum density is
achieved but avoid unnecessary run time that
can lead to loosening the soil previously
compacted.
8. Repeat compacted lifts as necessary until a
nished surface is achieved. Optimum
compaction is usually obtained with two passes.
The duration of the initial pass is dependent on
depth and material. The second pass may
require additional ll material and Ho-Pac
repositioning to achieve nished grade.
9. After compaction is complete, re-position the Ho-
Pac and/or carrier to continue working.
NOTE:It is not necessary to stop the Ho-Pac for
minor re-positioning.
The rate of compaction to a 95% Modied Proctor will
vary due to many factors, including variations in
operator technique. Other factors that will produce
different results include -
xSoil densities are reduced at the bottom of
excessively high lifts. It may be necessary to try
different lifts to determine the maximum and most
effective lift that can be used and still achieve the
required density.
xCompaction is affected by material type. Soils
with 50% or more granular content are the most
responsive to compaction through vibratory
action.
xMoisture content is also critical to achieving
maximum compacted densities of ll material. Fill
materials may need conditioning prior to
compaction.
IMPORTANT
Always practice proper operating techniques.
xDo not allow mounting frame to contact base
plate. Spring mount and frame damage may
result. The spring mounts can be stretched to
approximately one-half (1/2) their width.
xDo not use the Ho-Pac to lift or push materials.
Damage to spring mounts and other
components may result.
xDo not operate the Ho-Pac underwater. Bearing
damage may result.
xDo not operate the Ho-Pac without the
compaction plate attached. A dynamic
imbalance may result in equipment damage.
xAt temperatures below 32oF (0oC), operate the
Ho-Pac for a few minutes without down force to
allow the spring mounts to warm.
xDo not operate Ho-Pac with hydraulic oil
temperature above 180oF (80oC)
NOTE: Further information is available in the
“Compaction Manual”. For a copy, contact your local
dealer or Allied’s Customer Service. Ask for part
number 103392.