Howmet Aerospace 546 Series User manual

HK673
August 3, 2020
HK673
Makers of Huck®, Marson®, Recoil®
Brand Fasteners, Tools & Accessories
Instruction Manual
546 and 548 series
Oset Collar Cutters
Table of Contents
Declaration of Conformity 2
Safety Instructions 3
Description 4
Specications 4
Operating Instructions 4
Maintenance 4
Components Drawings 5-6


3
546 and 548 series Offset Collar Cutters (HK673)
Safety Instructions
I. GENERAL SAFETY RULES:
1. A half hour long hands-on training session with qualified personnel is
recommended before using Huck equipment.
2. Huck equipment must be maintained in a safe working condition at all
times. Tools and hoses should be inspected at the beginning of each
shift/day for damage or wear. Any repair should be done by a qualified
repairman trained on Huck procedures.
3. For multiple hazards, read and understand the safety instructions before
installing, operating, repairing, maintaining, changing accessories on,
or working near the assembly power tool. Failure to do so can result in
serious bodily injury.
4. Only qualified and trained operators should install, adjust or use the
cutting-off / crimping power tool.
5. Do not modify this cutting-off / crimping power tool. This can reduce
effectiveness of safety measures and increase operator risk.
6. Do not discard safety instructions; give them to the operator.
7. Do not use cutting-off / crimping power tool if it has been damaged.
8. Tools shall be inspected periodically to verify all ratings and markings
required, and listed in the manual, are legibly marked on the tool. The
employer/operator shall contact the manufacturer to obtain replacement
marking labels when necessary. Refer to assembly drawing and parts list for
replacement.
9. Tool is only to be used as stated in this manual. Any other use is prohibited.
10. Only genuine Huck parts shall be used for replacements or spares. Use of
any other parts can result in tooling damage or personal injury.
11. Never remove any safety guards or pintail deflectors.
12. Check clearance between trigger and work piece to ensure there is no
pinch point when tool is activated. Remote triggers are available for
hydraulic tooling if pinch point is unavoidable.
13. Do not abuse tool by dropping or using it as a hammer. Never use hydraulic
or air lines as a handle or to bend or pry the tool. Reasonable care of
installation tools by operators is an important factor in maintaining tool
efficiency, eliminating downtime, and preventing an accident which may
cause severe personal injury.
14. Never place hands between cutting-off / crimping power tool and work
piece. Keep hands clear from front of tool.
II. PROJECTILE HAZARDS:
1. Disconnect the cutting-off / crimping power tool from energy source when
changing inserted tools or accessories.
2. Be aware that failure of the workpiece, accessories, or the inserted tool
itself can generate high velocity projectiles.
3. Always wear impact resistant eye protection during tool operation. The
grade of protection required should be assessed for each use.
4. For overhead work, wear a safety helmet.
5. Ensure that the workpiece is securely fixed.
6. The risk to others should also be assessed at this time.
7. Be aware of the risk of being exposed to the ejection of cuttings or chips.
8. Be aware that working on brittle material can cause harmful splinters.
III. OPERATING HAZARDS:
1. Use of tool can expose the operator’s hands to hazards including: crushing,
impacts, cuts, abrasions and heat. Wear suitable gloves to protect hands.
2. Operators and maintenance personnel shall be physically able to handle the
bulk, weight and power of the tool.
3. Hold the tool correctly and be ready to counteract normal or sudden
movements with both hands available.
4. Maintain a balanced body position and secure footing.
5. Release trigger or stop start device in case of interruption of energy supply.
6. Use only fluids and lubricants recommended by the manufacturer.
7. Avoid direct contact with the inserted tool as it can become hot.
8. Sharp tools shall always be used.
9. Be aware of risk of whipping compressed air hose.
10. Be aware of risk of cutting with tools with large dimensions.
IV. REPETITIVE MOTION HAZARDS:
1. When using cutting-off / crimping power tool, the operator can experience
discomfort in the hands, arms, shoulders, neck or other parts of the body.
2. When using tool, the operator should adopt a comfortable posture while
maintaining a secure footing and avoid awkward or off balanced postures.
3. The operator should change posture during extended tasks to help avoid
discomfort and fatigue.
4. If the operator experiences symptoms such as persistent or recurring
discomfort, pain, throbbing, aching, tingling, numbness, burning sensations
or stiffness, these warnings should not be ignored. The operator should tell
the employer and consult a qualified health professional.
V. ACCESSORIES HAZARDS:
1. Disconnect tool from energy supply before changing inserted tool or
accessory.
2. Use only sizes and types of accessories and consumables that are
recommended. Do not use other types or sizes of accessories or
consumables.
VI. WORKPLACE HAZARDS:
1. Be aware of slippery surfaces caused by use of the tool and of trip hazards
caused by the air line or hydraulic hose.
2. Proceed with caution while in unfamiliar surroundings; there could be
hidden hazards such as electricity or other utility lines.
3. The cutting-off / crimping power tool is not intended for use in potentially
explosive environments.
4. Tool is not insulated against contact with electrical power.
5. Ensure there are no electrical cables, gas pipes, etc., which can cause a
hazard if damaged by use of the tool.
VII. DUST AND FUME HAZARDS:
1. Dust and fumes generated when using cutting-off and crimping power
tools can cause ill health; risk assessment and implementation of
appropriate controls for these hazards are essential.
2. Risk assessment should include dust created by the use of the tool and the
potential for disturbing existing dust.
3. Operate and maintain the cutting-off or crimping power tool as
recommended in the instruction handbook, in order to minimize dust or
fume emissions.
4. Direct the exhaust so as to minimize disturbance of dust in a dust-filled
environment.
5. Where dust or fumes are created, the priority shall be to control them at
the point of emission.
6. All integral features or accessories for the collection, extraction or
suppression of airborne dust or fumes should be correctly used and
maintained.
7. Use respiratory protection in accordance with employer’s instructions and
as required by occupational health and safety regulations.
VIII. NOISE HAZARDS:
1. Exposure to high noise levels can cause permanent, disabling hearing loss
and other problems such as tinnitus, therefore risk assessment and the
implementation of proper controls is essential.
2. Appropriate controls to reduce the risk may include actions such as
damping materials to prevent workpiece from ‘ringing’.
3. Use hearing protection in accordance with employer’s instructions and as
required by occupational health and safety regulations.
4. Operate and maintain tool as recommended in the instruction handbook to
prevent an unnecessary increase in the noise level.
5. Select, maintain and replace the consumable / inserted tool as
recommended to prevent an unnecessary increase in noise.
6. If the power tool has a silencer, always ensure that it is in place and in good
working order when the tool is being operated.
IX. VIBRATION HAZARDS:
1. Exposure to vibration can cause disabling damage to the nerves and blood
supply to the hands and arms.
2. Wear warm clothing when working in cold conditions and keep hands
warm and dry.
3. If numbness, tingling, pain or whitening of the skin in the fingers or hands,
stop using the tool, tell your employer and consult a physician.
GLOSSARY OF TERMS AND SYMBOLS:
- Product complies with requirements set forth by
the relevant European directives.
- Read manual prior to using this equipment.
- Eye protection is required while using this
equipment.
- Hearing protection is required while using this
equipment.
Notes: are reminders of required procedures.
Bold, Italic type, and underline: emphasize a specific
instruction.
WARNINGS: Must be understood to avoid
severe personal injury.
CAUTIONS: Show conditions that will damage
equipment or structure.

4
546 and 548 series Offset Collar Cutters (HK673)
Description
These Offset Collar Cutters with twin steel blades weigh only
3/4 lb.; operate with a simple, single fluid cam movement; and
have been designed for production use in extreme situations
when movement is curtailed and fastener access is severely
limited. Model 546 removes aluminum HuckBolt®collars from
installed fasteners with a 3/16” diameter. Model 548 removes
aluminum HuckBolt®collars from installed fasteners with a 1/4”
diameter. Both Collar Cutters are designed to be used in the
streamlined procedure previously reserved for attaching nose
assemblies. These cutters can be used with 2400 series Huck
installation tool models. With Adapter part number 102463,
they can be used with Huck tool models 245, 246, 255, 256, and
the 2582 and 4800 series of tools.
Specifications
Figure 1
Dimensions are
given in inches.
Figure 1
Operating Instructions
Refer to Figures 2, 3, and 4 for parts identification.
1. Slide the cam out from the rear of the cutter
assembly, and attach the the shim and the cam to
the tool piston. Tighten with a wrench.
2. Slide the housing and shoulder pin assembly, with
the retaining nut in place, over the cam. (Squeeze
the blade set at the front of the cutter to get the
assembly to slide completely over the cam.)
3. Tighten the retaining nut.
4. Slide the cutter assembly over the collar. (Figure 2)
5. Pull the tool trigger to cut the collar.
Maintenance
Read this section completely before proceeding with maintenance
and repair.
The operating efficiency of any installation or removal tool
depends upon proper maintenance and good service practices.
Use proper hand tools, and service the tool in a clean, well-lighted
area. Take care to prevent contamination of hydraulic systems.
Perform regular preventive maintenance to ensure safe use.
Check the tool at the beginning and end of each shift.
Blades must move freely; check for debris if there is any resistance.
Cam shall be lubricated regularly; apply as needed to keep tool
moving freely.
Dispose of lubricants and tool parts in accordance with local
environmental regulations.
WARNING: Inspect tool for damage or wear
before each use. Do not operate if damaged or
worn, as severe personal injury may occur.

5
546 and 548 series Offset Collar Cutters (HK673)
Components Drawings
Figure 3

6
546 and 548 series Offset Collar Cutters (HK673)
Components Drawings
Figure 4

7
546 and 548 series Offset Collar Cutters (HK673)
Limited Warranties
Limited Lifetime Warranty on BobTail® Tools:
Huck International, Inc. warrants to the original purchaser that
its BobTail® installation tools manufactured after 12/1/2016
shall be free from defects in materials and workmanship for its
useful lifetime. This warranty does not cover special order
/ non-standard products, or part failure due to normal wear,
tool abuse or misapplication, or user non-compliance with the
service requirements and conditions detailed in the product
literature.
Two Year Limited Warranty on Installation Tools:
Huck International, Inc. warrants that its installation tools and
Powerigs®manufactured after 12/1/2016 shall be free from
defects in materials and workmanship for a period of two years
from date of purchase by the end user. This warranty does
not cover special order / non-standard products, or part failure
due to normal wear, tool abuse or misapplication, or user
non-compliance with the service requirements and conditions
detailed in the product literature.
90 Day Limited Warranty on Nose Assemblies and
Accessories:
Huck International, Inc. warrants that its nose assemblies
and accessories shall be free from defects in materials and
workmanship for a period of 90 days from date of purchase by
the end user. This warranty does not cover special clearance
noses, or special order / non-standard product, or part failure
due to normal wear, abuse or misapplication, or user non-
compliance with the service requirements and conditions
detailed in the product literature.
Useful lifetime is defined as the period over which the
product is expected to last physically, up to the point when
replacement is required due to either normal in-service wear,
or as part of a complete overhaul. Determination is made on a
case-by case basis upon return of parts to Huck International,
Inc. for evaluation.
Tooling, Part(s) and Other Items not manufactured by
Huck:
HUCK makes no warranty with respect to the tooling, part(s),
or other items manufactured by third parties. HUCK expressly
disclaims any warranty expressed or implied, as to the
condition, design, operation, merchantability, or fitness for use
of any tool, part(s), or other items thereof not manufactured
by HUCK. HUCK shall not be liable for any loss or damage,
directly or indirectly, arising from the use of such tooling,
part(s), or other items or breach of warranty or for any claim
for incidental or consequential damages.
Huck shall not be liable for any loss or damage resulting from
delays or non-fulfillment of orders owing to strikes, fires,
accidents, transportation companies or for any reason or
reasons beyond the control of the Huck or its suppliers.
Huck Installation Equipment:
Huck International, Inc. reserves the right to make changes in
specifications and design and to discontinue models without
notice.
Huck Installation Equipment should be serviced by trained
service technicians only.
Always give the serial number of the equipment when
corresponding or ordering service parts.
Complete repair facilities are maintained by Huck International,
Inc. Please contact one of the offices listed below.
Eastern
One Corporate Drive Kingston, New York 12401-0250
Telephone (845) 331-7300 FAX (845) 334-7333
Outside USA and Canada
Contact your nearest Huck International location (see
reverse).
In addition to the above repair facilities, there are Authorized
Tool Service Centers (ATSC’s) located throughout the United
States. These service centers offer repair services, spare parts,
Service Parts Kits, Service Tool Kits and Nose Assemblies.
Please contact your Huck Representative or the nearest Huck
International location (see reverse) for the ATSC in your area.

Howmet AerospaceInc. (NYSE: ARNC) creates
breakthrough products that shape industries. Working in
close partnership with our customers, we solve complex
engineering challenges to transform the way we y,
drive, build and power.
Through the ingenuity of our people and cutting-edge
advanced manufacturing, we deliver these products at a
quality and eciency that ensures customer success and
shareholder value.
Howmet Fastening Systems world-wide locations:
AMERICAS
Kingston Operations
1 Corporate Drive
Kingston, NY 12401
800-278-4825
845-331-7300
FAX: 845-334-7333
Carson Operations
900 Watsoncenter Road
Carson, CA 90745
800-421-1459
310-830-8200
FAX: 310-830-1436
Waco Operations
PO Box 8117
8001 Imperial Drive
Waco, TX 76714-8117
800-388-4825
254-776-2000
FAX: 254-751-5259
Tucson Operations
3724 East Columbia Street
Tucson, AZ 85714
800-234-4825
520-519-7400
Acuña Operations
Hidalgo #120
Parque Industrial Amistad
Acuña, Coahuila 26220
Mexico
FAX: 525-515-1776
EUROPE
Telford Operations
Unit C, Staord Park 7
Telford, Shropshire
England TF3 3BQ
+44 1952290011
FAX: 0952-290459
Us Operations
BP4
Clos D’Asseville
95450 Us par Vigny
France
+33 1 30 27 95 00
AUSTRALIA
Melbourne Operations
1508 Centre Road
Clayton, Victoria
Australia 3168
+613 8545 3333
1300 363 049
FAX: +613 8545 3391
Huck is Forever, For the Long Haul, The
Future of Fastening Technology, The Future
of Assembly Technology, The Future of
Tooling Technology, and Tools of Productivity
are trademarks of Huck International. Huck
provides technical assistance regarding the use
and application of Huck fasteners and tooling.
NOTICE: The information contained in this
publication is only for general guidance with
regard to properties of the products shown
and/or the means for selecting such products,
and is not intended to create any warranty,
express, implied, or statutory; all warranties are
contained only in Huck’s written quotations,
acknowledgments, and/or purchase orders. It
is recommended that the user secure specic,
up-to-date data and information regarding
each application and/or use of such products.
© 2018 Huck International, Inc. www.afshuck.net/us
1 Corporate Drive, Kingston, NY 12401 • Tel: 800-431-3091 • Fax: 845-334-7333
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