Werk-Brau PowerGrip Bucket User manual

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WERK-BRAU CO., INC.
PRODUCT AND
INSTALLATION MANUAL
PG / HCB
(PowerGrip / Hydra-Clamp Buckets)
Serial No:
Model No:
Date Manufactured:
PROUDLY MANUFACTURED IN FINDLAY, OH
W erk-Brau.com

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GENERAL SAFETY PRECAUTIONS
SAFETY STATEMENT GUIDE
DANGER
WARNING
CAUTION
NOTICE
Danger tags are used in major hazard situations where an immediate hazard presents a threat of
death or serious injury to operator and anyone about.
Warning tags are used to represent a hazard level between “Caution” and “Danger”, instead of
the required “Caution” tag, provided that they have a signal word of “Warning,”an appropriate
major message.
Caution tags are used in minor hazard situations where a non-immediate or potential hazard or
unsafe practice presents a lesser threat of injury.
Anotice label is used where equipment or property damage could result if the instructions are not
followed properly.
This symbol by itself or used with a safetysignal word throughout this manual is used to call your
attention to instructions involving your personal safety or the safetyof others. Failure to follow
these instructions can result in injury or death.
DANGER
WARNING
DANGER
NOTICE
WARNING
READ MANUAL PRIOR TO INSTALLATION
Improper installation, operation, or maintenance of this equipment could result in serious injury
or death. Operators and maintenance personnel should read this manual as well as all manuals
related to this equipment and the operating machine thoroughly before beginning installation,
operation, or maintenance. FOLLOW ALL SAFETYINSTRUCTIONS IN THIS MANUALAND
THE OPERATINGMACHINES MANUAL.
READ AND UNDERSTAND ALL SAFETY STATEMENTS
Read all safety decals and safety statements in all manuals prior to operating or working on this
equipment. Know and obey all OSHAregulations, local laws and other professional guidelines for
your operation. Know and follow good work practices when assembling, maintaining, repairing,
mounting, removing or operating this equipment.
KNOW YOUR EQUIPMENT
Know your equipment’s capabilities, dimensions and operations before operating. Visually inspect
your equipment before you start, and never operate equipment that is not in proper working order
with all safety devices intact. Check all hardware to assure it is tight.Make certain that all locking
pins, latches, and connection devices are properly installed and secured. Remove and replace any
damaged, fatigued or excessively worn parts. Make certain all safetydecals are in place and are
legible. Keep decals clean, and replace them if they become worn and hard to read.
PROTECT AGAINST FLYING DEBRIS
Always wear proper safetyglasses, goggles with a face shield when driving pins in or out or when
any operation causes dust, flying debris, or any other hazardous material.
LOWER OR SUPPORT RAISED EQUIPMENT
Do not work under raised booms without supporting them. Do not use support material made of
concrete blocks, logs, buckets, barrels or any other material that could suddenly collapse or shift
positions. Make sure support material is solid, not decayed, warped, twisted, or tapered. Lower
the boom(s) to ground level or onto block(s). Lower the boom(s) and attachment(s) to the ground
before leaving the cab or operator’s station.

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GENERAL SAFETY PRECAUTIONS
WARNING
WARNING
DANGER
NOTICE
USE CARE WITH HYDRAULIC FLUID PRESSURE
Hydraulic fluid under pressure can penetrate the skin and cause serious injury or death. Hydraulic
leaks under pressure may not be visible. Before connecting or disconnecting hydraulic hoses,
read your operating machines operator’s manual for detailed instructions on connecting and
disconnecting hydraulic hoses or fittings.
•Keep unprotected body parts,such as face, eyes, and arms as far away as possible from a
suspected leak. Flesh injected with hydraulic fluid may develop gangrene or other permanent
disabilities. Wear safety glasses, protective clothing, and use a sound piece of cardboard or
wood when searching for hydraulic leaks. DO NOT USE YOUR HANDS
•If injured by injected fluid, see a doctor at once. If your doctor is not familiar with this type of
injury, ask him to research immediately to determine proper treatment.
DO NOT MODIFY MACHINE OR ATTACHMENTS
Modifications may weaken the integrity of the attachment and may impair the function, safety, life
and performance of the attachment. When making repairs, use only the manufacturer’s genuine
parts, following authorized instructions. Other parts may be substandard in fit and quality. For
loaders, never modify any ROPS (Roll Over Protection System) equipment or device.
!!!Any modifications must be authorized in writing by Werk-Brau or the
manufacturer!!!
SAFELY OPERATE THE EQUIPMENT
Do not operate equipment until you are completely trained by a qualified operator in how to use
the controls, know its capabilities, dimensions, and all safetyrequirements.
See your operating machines manual for these instructions.
•Keep all step plates, grab bars, pedals, and controls free of dirt, grease, debris, and oil.
•Be sure that all bystanders are out of harms way when operating.
•Do not allow riders on the attachment or operating machine
•Do not operate the equipment from anywhere other than the correct operators position.
•Never leave equipment unattended with the engine running or with this attachment in a raised
position.
•Do not alter or remove any safetyfeature from the operating machine or this attachment.
•Know your work site safety rules as well as traffic rules and flow. When in doubt on any safety
issue, contact your supervisor or safetycoordinator for an explanation.
SAFELY MAINTAIN AND REPAIR EQUIPMENT
•Do not wear loose clothing, or any accessories that can catch in moving parts. If you have
long hair, cover or secure it so that it does not become entangled in the equipment.
•Work on a level surface in a well-lit area.
•Use properly grounded electrical outlets and tools.
•Use the correct tool for the job at hand. Make sure tools are in good condition.
•Wear all protective equipment specified by the tool manufacturer.

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GENERAL SAFETY GUIDELINES
Cautionary Notices
Before beginning disassembly of the PowerGrip,
thereareseveralcautionarynoticesthatshouldbe
considered.Ifyouarenotcomfortablewithrepairor
maintenance of this product, contact your local
dealerorHelacCorporation’s ServiceDepartment
for assistance.
1. PowerGrip should only be used to perform
tasks for which it was designed. Abusing the
product and/or using it for purposes for which
it was not intended can expose the operator
and others to hazards as well as result in
damage to the PowerGrip, carrier and/or
other attachments.
2. The operation of the PowerGrip Bucket is
similar to the operation of OEM buckets in
trenching and material handling applications.
However, the PowerGrip Bucket has the
added ability to grip, hold and lift materials in a
pick and place capability. This attachment is
not designed for long term holding of
materials.
Refer to the carrier manufacturer’s instructions
regarding safe material handlingpractices.
The bucket jaw should only be opened when
needed for specific tasks. Failure to close the
jaw can result in damage to the dipper arm.
3. Modification to the PowerGrip is done at the
owner’s risk and may void the Helac
Corporation, Attachments Divisionwarranty.
4. It is the owner’s responsibility to be sure all
safety equipment is in place and operating
properly at all times. If safety decals fade, are
damaged or become unreadable from a
distance of 10 feet, they should be
replaced immediately.
Other SafetyGuidelines
and Precautions

Installation and Mounting
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TABLE OF CONTENTS
TITLE PAGE
Introduction 6
Attachment Installation 7
Attachment Removal 8
Hydraulic Requirements 9
Hydraulic Lines and Plumbing 11
Suggested Hose Routing 12
Maintenance 13
If at any time in the future, you require additional information on this product or any aspects of its use,
please do not hesitate to contact Werk-Brau Co., Inc.

Installation and Mounting
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INTRODUCTION
THANK YOU FOR YOUR PURCHASE You have received a high quality, extremely versatile
attachment that will increase your machine’s capability. The multi-purpose is a versatile-durabletool used as a
trenching, grading or clamshell bucket and from gripping and loading. This attachment increases the tasks a
single machine can perform; reducing the number of dedicated task machines needed on a job site.
TELL US WHAT YOU THINK Werk-Brau would like what you think about its products. Please visit our
website & share your experience with us!

Installation and Mounting
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ATTACHMENT INSTALLTION
PowerGrip/HydraClamp Installation
Each PowerGrip and HydraClamp Bucket is engineered for a specific backhoe or excavator and is designed
to be pin mounted directly to the machine.
Installing the Bucket onto the
Carrier
All PowerGrip and HydraClamp models should be
mounted to the carrier according to the instructions
outlined below.
1. Position the PowerGrip close to the carrier
boom to ensure easy use of the lifting reach
and range of the carrier boom.
2. Lower the dipper to approximately 2-3 inches
(50-75 mm) above the PowerGrip. Roll out the
bucket cylinder to lower the link bars to the
PowerGrip.
3. Align the PowerGrip and link bar holes and
install the link pin.
4. Slowly lift the PowerGrip to a safe height with
the bucket and boom cylinders.
5. Curl the bucket cylinder until the PowerGrip
and dipper holes align and install the bucket
pivot pin. Rotate the pins as necessary and
install the required retainers.
6.
Safety check. Check that the Werk-
Brau attachment is fitting correctly by
maneuvering it with the machine and
at the same time watching for any
interference or resistance to
movement that may exist. If there is
any sign of problems with the smooth
functioning of the PowerGrip, DO
NOT attempt to carry out any
modifications to it, or the host
machine. Instead contact Werk-Brau's
Customer Service Department who
will advise as necessary.
PowerGrip Removal

Installation and Mounting
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ATTACHMENT REMOVAL
PowerGrip/HydraClamp Removal
Removing the Bucket from the
Carrier
To remove the PowerGrip bucket follow the
instructions outlined below.
1. Position the bucket so it is lightly supported by
the ground and in a position so it will not move
or fall when a pin is removed.
2. Remove the bucket pivot and link pins.

Installation and Mounting
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HYDRAULIC REQUIREMENTS
Hydraulic Requirements
Notice
Important Notice:
Werk-Brau does not assume any responsibility beyond
the design and performance of its construction
equipment attachment products. The customer is solely
responsible for engineering of mating structures,
fasteners, and other associated components related to
the installation of the product and its ultimate
application.
The typical PowerGrip Circuit Chart and the Tool
Circuit Requirements Table illustrate the control circuit
requirements for the PowerGrip. The hydraulic
pressures and flow requirements must be observed or
damage to the actuator can occur.
The installer of the PowerGrip is responsible for
selecting control circuits that are compatible with the
excavator and meet the tool circuit requirements. Werk-
Brau can be contacted for additional control circuits
and methods for controlling the PowerGrip.
PowerGrips are equipped with a standard pressure
control/load lock manifold welded to the bucket shell.
Refer to the Suggested Hose Routings Diagram on
Page 12 for the recommended routings.

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Hydraulic Requirements
Werk-Brau does not provide hydraulic kits for the PowerGrip.
Tool Circuit Requirements
Model Sizes
PG06
PG07
PG08
Displacement
in3
84.8
118.5
211
(cm3)
(1390)
(1942)
(3458)
Required Oil Flow
gpm
2-7
3-10
5-18
(liters/minute)
(8-28)
(12-39)
(21-70)
Port Connections*
SAE
6
6
6
BSPP
(1/4)
(1/4)
(1/4)
Hydraulic Circuit
Min. Hose Tube Size
in
1/2
5/8
5/8
(mm)
(12)
(16)
(16)
Whip Hose Size
in
3/8
3/8
3/8
(mm)
(10)
(10)
(10)
Hydraulic Pressures
Cross Port Relief Valve Pressure (opening)
1,000-1,500 psi
(70-103 bar)
Cross Port Relief Valve Pressure (closing)
3,200-3,300 psi
(220-230 bar)
Circuit Pressure
3,650-3,750 psi
(250-260 bar)
Maximum Circuit Back Pressure
580 psi
(40 bar)
*3-10 second open/close time