Howmet Aerospace 2581 Series User manual

2583
2581
2582
February 6, 2023
HK1173
Hydraulic Installation Tools
Instruction Manual
2581, 2582, and 2583 series
Table of Contents
EC Declaration of Conformity 2
Safety Instructions 3-5
Description 5
Tool Specifications 6
Principle of Operation 7
Tool-to-Powerig®Setup 7
Spare Parts and Accessories 8
Sticker Locations 8
Preparation for Use 9
Operating Instructions 10
Hydraulic Couplings 10
Maintenance 11
Nose Assembly Installation and
Removal 11
Tool Disassembly and Assembly
Procedures 12-13
Component Drawings 14-18
Troubleshooting 19
Warranties 21

2581 2582 2583 Hydraulic Installation Tools (HK1173)
2
EC Declaration of Conformity
Manufacturer:
Huck International, LLC, Industrial Products Group,
1 Corporate Drive, Kingston, NY, 12401, USA
Description of Machinery:
Models 2400, 2480, 2500, 2580 family of hydraulic
installation tools and specials based on their design (e.g.
PR####).
Relevant provisions complied with:
• Council Directive related to Machinery (2006/42/EC)
• British Standard related to hand held, non-electric
power tools (ISO 11148-1:2011)
Representatives:
EU: Lutz Baumann
Hildesheim Operations
Fairchild Fasteners Europe - VSD GmbH
Steven 3
31135 Hildesheim
Germany
Authorized Signature/date:
I, the undersigned, do hereby declare that the equipment
specied above conforms to the above
Directive(s) and Standard(s).
Signature:
Full Name: Nicholas Gougoutris
Position: Engineering Manager
Location: Huck International, LLC d/b/a
Howmet Fastening Systems
Kingston, New York, USA
Date: 2/6/23 February 6, 2023
UKCA Declaration of Conformity
Manufacturer:
Huck International, LLC, Industrial Products Group,
1 Corporate Drive, Kingston, NY, 12401, USA
Description of Machinery:
Models 2400, 2480, 2500, 2580 family of hydraulic
installation tools and specials based on their design (e.g.
PR####).
Relevant provisions complied with:
• British Standard related to hand held, non-electric
power tools (ISO 11148-1:2011)
• Supply of Machinery (Safety) Regulations 2008
Representatives:
UK: Paul Carson
Huck International, Ltd.
Unit C
Staord Park 7
Telford, Shropshire
England TF3 3BQ, United Kingdom
Authorized Signature/date:
I, the undersigned, do hereby declare that the equipment
specied above conforms to the above
Directive(s) and Standard(s).
Signature:
Full Name: Nicholas Gougoutris
Position: Engineering Manager
Location: Huck International, LLC d/b/a
Howmet Fastening Systems
Kingston, New York, USA
Date: 2/6/23 February 6, 2023
Test data to support the above information is on file at: Howmet Fastening Systems, Kingston Operations, Kingston, NY, USA.
Declared dual number noise emission values in accordance with ISO 4871
A weighted sound power level, LWA: 85 dB (reference 1 pW) Uncertainty, KWA: 3 dB
A weighted emission sound pressure level at the work station, LpA: 74 dB (reference 20 µPa) Uncertainty, KpA: 3 dB
C-weighted peak emission sound pressure level, LpC, peak: 119 dB (reference 20 µPa) Uncertainty, KpC: 3 dB
Values determined according to noise test code ISO 15744, using as basic standards ISO 3744 and ISO 11203. The sum of a
measured noise emission value and its associated uncertainty represents an upper boundary of the range of values which is likely
to occur in measurements.
Declared vibration emission values in accordance with EN 12096
Measured Vibrations emission value, a: .20 m/s2Uncertainty, K: .17 m/s2
Values measured and determined according to ISO 28662-1, ISO 5349-2, and EN 1033

2581 2582 2583 Hydraulic Installation Tools (HK1173)
3
DANGER - IMPORTANT
DO NOT EXCEED HOSE MINIMUM BEND RADIUS
Failure to heed the warnings below could lead to a damaged hose, damaged tool,
damaged property, personal injury, or death.
• This high pressure hose is not to be used other than assembled in a genuine HUCK
tool or hose assembly or used as a replacement hose of a genuine HUCK tool or
hose assembly.
• Improper use of this product can cause property damage, personal injury, and
death, including but not limited to electrocution, fluid injection or loss of limb
caused by high pressure leak, dangerously whipping hose or contact with
suddenly moving or falling objects.
• Do not exceed rated working pressure (700 bar/10150 psi) or minimum bend
radius (see chart below). Do not use in temperatures less than -40°C (-40°F) or
greater than +100°C (+212°F). Do not exceed fluid working temperature of +70°C
(+158°F).
• Do not use if hose is kinked, abraded, cut, bulged or leaking. Do not attempt to
repair hose.
• Do not carry tool by hoses. • Store hose assemblies in a clean dry area.
• Refer to a HUCK hydraulic tool manual for hose inspection & maintenance intervals.
Hose Type Minimum Bend Radius
126107 Series 2.76 Inches 70 mm
118944 and 124881 Series 2.17 Inches 55 mm
HA and HPH Series 1.97 Inches 50 mm
Glossary of Terms and Symbols
Product complies with
requirements set forth by the
relevant UK and European
directives.
NOTES Notes are reminders of required
procedures.
Read manual before using
equipment. FONT STYLING Bold, italic type and underline:
emphasize a specific instruction.
Hearing protection is required
while using this equipment. WARNINGS Must be understood to avoid severe personal injury.
Eye protection is required
while using equipment. CAUTIONS Show conditions that will damage equipment or structure.

2581 2582 2583 Hydraulic Installation Tools (HK1173)
4
I. GENERAL SAFETY RULES:
1. A half hour long hands-on training session with
qualied personnel is recommended before using
Howmet equipment.
2. Howmet 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
qualied repairman trained on Howmet 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 qualied and trained operators should install,
adjust or use the assembly power tool.
5. Do not modify this assembly power tool. This can
reduce eectiveness of safety measures and increase
operator risk.
6. Do not discard safety instructions; give to operator.
7. Do not use assembly power tool if it is 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. Read MSDS Specications before servicing the tool.
MSDS specications are available from the product
manufacturer or your Howmet representative.
11.Only genuine Howmet parts shall be used for
replacements or spares. Use of any other parts can
result in tooling damage or personal injury.
12. Never remove any safety guards or pintail deectors.
13.Never install a fastener in free air. Personal injury from
fastener ejecting may occur.
14.Where applicable, always clear spent pintail out of nose
assembly before installing the next fastener.
15.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.
16.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
eciency, eliminating downtime, and preventing an
accident which may cause severe personal injury.
17.Never place hands between nose assembly and work
piece. Keep hands clear from front of tool.
18.Tools with ejector rods should never be cycled with out
nose assembly installed.
19.When two piece lock bolts are being used always make
sure the collar orientation is correct. See fastener data
sheet for correct positioning.
II. PROJECTILE HAZARDS:
1. Risk of whipping compressed air hose if tool is
pneudraulic or pneumatic.
2. Disconnect the assembly power tool from energy
source when changing inserted tools or accessories.
3. Be aware that failure of the workpiece, accessories,
or the inserted tool itself can generate high velocity
projectiles.
4. Always wear impact resistant eye protection during tool
operation. The grade of protection required should be
assessed for each use.
5. The risk of others should also be assessed at this time.
6. Ensure that the workpiece is securely xed.
7. Check that the means of protection from ejection of
fastener or pintail is in place and operative.
8. There is possibility of forcible ejection of pintails or
spent mandrels from front of tool.
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 uids and lubricants recommended by the
manufacturer.
7. Avoid unsuitable postures, as it is likely for these not
to allow counteracting of normal or unexpected tool
movement.
8. If the assembly power tool is xed to a suspension
device, make sure that xation is secure.
9. Beware of the risk of crushing or pinching if nose
equipment is not tted.
IV. REPETITIVE MOTION HAZARDS:
1. When using assembly power tool, the operator can
experience discomfort in the hands, arms, shoulders,
neck or other parts of the body.
2. The operator should adopt a comfortable posture,
maintain a secure footing and avoid awkward or o
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
stiness, these warnings should not be ignored.
The operator should tell the employer and consult a
qualied health professional.
Safety Instructions

2581 2582 2583 Hydraulic Installation Tools (HK1173)
5
DEXRON is a registered trademark of General Motors Corporation.
GLYD Ring is a registered trademark of Trelleborg Sealing Solutions
Germany GmbH
Loctite is a registered trademark of Henkel IP & Holding GmbH
LUBRIPLATE is a registered trademark of Fiske Brothers Refining Co.
MERCON is a registered trademark of Ford Motor Corp.
MOLYKOTE is a registered trademark of Dow Corning Corporation
Never-Seez is a registered trademark of Bostik, Inc.
Quintolubric is a registered trademark of Quaker Chemical Corp.
Slic-tite is a registered trademark of LA-CO Industries, Inc.
Spirolox is a registered trademark of Smalley Steel Ring Company
Teflon is a registered trademark of Chemours Company FC.
Threadmate is a registered trademark of Parker Intangibles LLC.
TRUARC is a trademark of TRUARC Co. LLC.
Vibra-Tite is a registered trademark of ND Industries, Inc. USA.
Where the following trade names are used in this manual, please note:
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 assembly power tool is not intended for use in
potentially explosive environments.
4. Tool is not insulated against contact with electrical
power.
5. Ensure no electrical cables, gas pipes, etc., can cause a
hazard if damaged by use of the tool.
VII. 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 it is in
place and in good working order when the tool is being
operated.
VIII. 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 ngers or hands, stop using the tool, tell your
employer and consult a physician.
4. Support the weight of the tool in a stand, tensioner or
balancer in order to have a lighter grip on the tool.
IX. HYDRAULIC TOOL SAFETY INSTRUCTIONS:
1. Carry out a daily check for damaged or worn hoses or
hydraulic connections and replace if necessary.
2. Wipe all couplers clean before connecting. Failure to
do so can result in damage to the quick couplers and
cause overheating.
3. Ensure that couplings are clean and correctly engaged
before operation.
4. Use only clean oil and lling equipment.
5. Power units require a free ow of air for cooling
purposes and should therefore be positioned in a well
ventilated area free from hazardous fumes.
6. Do not inspect or clean the tool while the hydraulic
power source is connected. Accidental engagement of
the tool can cause serious injury.
7. Be sure all hose connections are tight.
8. Wipe all couplers clean before connecting. Failure to
do so can result in damage to the quick couplers and
cause overheating.
WARNINGS: Do not exceed maximum
pull or return settings on tool.
Be sure all hose connections are tight.
All tool hoses must be connected.
Safety Instructions
Description
The 2581, 2582, and 2583 series, with appropriate nose
assemblies, install a wide range of Huck blind fasteners and
HUCKBOLT® fasteners. These lightweight and compact tools
are particularly adapted to installing fasteners in limited
clearance areas. Each tool is complete with hydraulic hoses
and couplings, electric switch and cord.
An unloading valve, designed to relieve hydraulic pressure at
end of the PULL stroke, is positioned by the piston. The end
of the piston rod is threaded. A retaining nut and stop are
included for attaching a nose assembly.
Huck Hydraulic Installation Tools are designed to be powered
by Huck Powerig® Hydraulic Unit models 913H, 918, 918-5,
940, 956, or equivalent, as power sources.
A specic nose assembly is required for each fastener type
and size. Nose assemblies must be ordered separately. Con-
tact your Huck representative.
The quantity of spare parts that should be kept on hand
varies with the application and number of tools in service.
Spare service kits containing perishable parts such as seals,
back-up rings, etc., should be kept on hand at all times.

2581 2582 2583 Hydraulic Installation Tools (HK1173)
6
8.42 inches (21.39 cm)
2.14 inches
(5.43 cm)
7.08 inches
(17.98 cm)
8.01 inches (20.34 cm)
2.00 inches
(5.08 cm)
7.33 inches
(18.62 cm)
9.40 inches (23.88 cm)
2.00 inches
(5.08 cm)
7.31 inches
(18.57 cm)
Specications
Hose Kits: Use only genuine HUCK Hose Kits rated at 10,000 psi working pressure.
Hydraulic fluid: Hydraulic fluid shall meet DEXRON III, DEXRON VI, MERCON, Allison C-4 or equivalent ATF specifications.
Fire resistant fluid may be used if it’s an ester based fluid such as Quintolubric HFD or equivalent. Water based fluid shall
NOT be used as serious damage to equipment will occur.
DESCRIPTION DETAIL DESCRIPTION DETAIL
POWER SOURCE Huck Powerig® Hydraulic Unit MAX OPERATING TEMP 125 ° F 51.7 ° C
MAX INLET PULL PRESSURE 8400 psi 580 bar MAX FLOW RATE 2 gpm 7.5 l/m
MAX INLET RETURN PRESSURE 3200 psi 220 bar
DESCRIPTION DETAIL
PULL CAPACITY 12,200 lbf 54.3 kN
RETURN CAPACITY 5,130 lbf 228 kN
STROKE .937 inches 2.38 cm
WEIGHT (approximate) 5.5 lbs 2.49 kg
DESCRIPTION DETAIL
PULL CAPACITY 10,850 lbf 48.3 kN
RETURN CAPACITY 4,730 lbf 21.0 kN
STROKE .75 inches 1.91 cm
WEIGHT (approximate) 4.1 lbs 1.86 kg
DESCRIPTION DETAIL
PULL CAPACITY 10,850 lbf 48.3 kN
RETURN CAPACITY 4,730 lbf 21.0 kN
STROKE 1.5 inches 3.81 cm
WEIGHT (approximate) 4.6 lbs 2.09 kg
2581 Family includes: 2581 and A2581
Stroke may be adjusted by installing Stroke
Limiters as shown in Figure 9.
2582 Family includes: 2582 and A2582
Stroke may be adjusted by installing Stroke
Limiters as shown in Figure 10.
2583 Family includes: 2583, A2583 and
2583-MGL-12
Stroke Limiter Kits for 2583-MGL-12 are listed in
the section for Spare Parts and Accessories.
Figure 1a
Figure 1b
Figure 1c
2581 Family - Dimensions and Specication
2582 Family - Dimensions and Specication
2583 Family - Dimensions and Specication

2581 2582 2583 Hydraulic Installation Tools (HK1173)
7
A trigger controls the PULL and RETURN strokes. When
the trigger is pressed, hydraulic pressure is directed to
PULL side of the piston, and fastener installation begins.
At the end of PULL stroke, before the trigger is released,
piston uncovers flats of unloading valve, thus unloading
pressure by allowing fluid to flow back to Powerig®
Hydraulic Unit. When the trigger is released at end of PULL
stroke when fastener is installed, the pressure is directed
to RETURN side of the piston and moves piston forward.
Nose assembly, with tool, is then pushed off fastener.
Principle of Operation
WARNING: Note
tool danger zones
in Figure 2.
To primary
power source
Powerig®
Installation Tool
Tool shown with
electric trigger.
Nose
Assembly
General arrangement of
Fastening System Components
Optional Hose Kit
Tool And Nose Assembly Shown
Engaged On Fastener. Cylinder
Home Position (Returned)
Sheet Line
Spent pintail ejection
Danger Zone
Keep hands and foreign objects
clear during operation.
Tool anvil will advance to sheet line
when trigger is pressed. Tool Operation
Keep This
Area Clear
This area must be free
of fixed obstructions.
Tool moves forward
during fastener
installation.
Max distance moved =
tool stroke.
See manual for tool
stroke length.
Figure 3
Figure 2
Tool to Powerig Setup

2581 2582 2583 Hydraulic Installation Tools (HK1173)
8
Options & Accessories
These components are available independently.
DESCRIPTION PART #
Gauge, Pressure Setting, CE T-124833CE
Spare Parts for Maintenance
These components are available independently. Service
Parts Kits include all perishable seals, O-rings, and
Back-up rings. A spare Service Parts Kit should be kept
on hand at all times.
DESCRIPTION PART #
2581/A2581 tool - Service Kit 2581KIT
2582/A2582 tool - Service Kit 2582KIT
2583/A2583 tool - Service Kit 2583KIT
TEFLON® STICK 503237
LOCTITE® 243 508567
NEVER-SEEZ® NS-160 505565
LUBRIPLATE® 130-AA 502723
THREADMATE TMTM (4 OZ. TUBE)(4 OZ. TUBE) 508517
Piston Assembly Tool Kit 123110-1
Piston Assembly Tool 123111-1
Spacer 123112-1
POLYSEAL
INSERTION
TOOL
2581/A2581 tool 121694-2580
2582 & 2583 tool series 505940
HOSE ASSEMBLY
Contains 2 hydraulic hoses with 1 male & 1 female quick connect fitting at
each end & 1 control cable with 1 male connector & 1 female connector
HOSE
LENGTH
PART NO.
WITHOUT SLEEVE
PART NO. WITH
SLEEVE
6 FT HAY06-ECA03 N/A
12 FT HAY12-ECA03 HAY12-ECA33
26 FT HAY26-ECA03 HAY26-ECA33
38 FT HAY38-ECA03 HAY38-ECA33
52 FT HAY52-ECA03 HAY52-ECA33
2583-MGL-12 - STROKE LIMITERS
Stroke Limiters limit Stroke to the Stroke Lengths listed below
STROKE LIMITER STROKE LENGTH KIT NO.
Limit Stroke to .875 inches .875 in (2.2 cm) 120753
Limit Stroke to .750 inches .750 in (1.9 cm) 130803
Limit Stroke to .562 inches .562 in (1.4 cm) 130804
INDIVIDUAL HOSES
As shown in Figure 12 and Figure 13, these hoses do not have quick
connect fittings at each end
HOSE
LENGTH
PART # HOSE
LENGTH
PART #
2 FT HPHX02-AA10 25 FT HPHX25-AA10
6 FT HPHX06-AA10 30 FT HPHX30-AA10
12 FT HPHX12-AA10 38 FT HPHX38-AA10
17 FT HPHX17-AA10
CONTROL CORD ASSEMBLY
Control Cord Assembly contains trimmed cord with plug.
CORD
LENGTH
PART # CORD
LENGTH
PART #
2.5 FT 131484-9 26 FT 131484-4
3.5 FT 131484-3 30.75 FT 131484-10
13.3 FT 131484-1 39 FT 131484-8
17.75 FT 131484-11
Spare Parts and Accessories
For CE conformity, only CE compatible equipment should be used with these tools. Installation tools and nose
assemblies are the only CE components unless otherwise noted. Controls and other hardware shown in the manual are
for domestic use only.
HUCK hydraulic tools come labeled with stickers which contain safety and pressure settings information. Stickers must
remain on the tool and readable. If a sticker becomes damaged or worn, or if it has been removed from the tool, or
when replacing the hydraulic Cylinder, it must be ordered and placed in the location shown.
8400 580
3200 220
590517
HUCK/Year of
Manufacture Sticker
A.
B. 590424
CE and WARNING Sticker
Figure 4
Sticker Locations

2581 2582 2583 Hydraulic Installation Tools (HK1173)
9
Note: Where a part number (P/N) is given, Huck sells
that part.
CONNECTING THE TOOL
Remove shipping caps from ends of pipe plug fittings.
Coat pipe plug threads, hose fitting threads, and quick
connect fittings with Threadmate™, which is available
from Huck in a 4oz. tube as part number 508517.
1. Use Huck Powerig®Hydraulic Unit, or equivalent,
that has been prepared for operation per instruction
manual. Check both PULL and RETURN pressures
and, if required, adjust to pressures given in
Specifications section of this manual. See both
hydraulic unit and T-124833CE instruction manuals
before/during checking procedure. Visually inspect
for leaks and to verify that End Cap is installed
correctly.
2. First, turn hydraulic unit to OFF. Then disconnect
power supply from hydraulic unit. Disconnect trigger
control system from hydraulic unit.
3. Connect tool hoses to hydraulic unit. If required,
adjust position of trigger assembly on return pressure
hose. Connect trigger control system to hydraulic unit.
4. Connect hydraulic unit to power supply (air or
electric). Turn hydraulic unit to ON. Hold Tool trigger
depressed for 30 seconds; depress trigger a few
times to cycle tool and to circulate hydraulic fluid —
observe action of Tool and check for leaks.
5. Select nose assembly for fastener to be installed.
Disconnect hydraulic unit from power supply;
disconnect Tool’s trigger control system from
hydraulic unit. Attach nose assembly to tool.
6. Reconnect Tool trigger control system to hydraulic
unit; reconnect unit to power supply. Check operation
of nose assembly. Install fasteners in test plate of
correct thickness with proper size holes, and inspect
installed fasteners. If fasteners do not pass inspection,
see Troubleshooting to identify and correct the
malfunction.
7. Operator should receive training on proper use
from qualified personnel.
Preparation for Use
Read all WARNINGS and CAUTIONS before operating maintenance on HUCK equipment.
WARNINGS: Read full manual before
using tool. A half-hour training session
with qualied personnel is recommended
before using Huck equipment.
When operating Huck installation equipment,
always wear approved eye and ear protection.
Be sure there is adequate clearance for the oper-
ator’s hands before proceeding.
CAUTION: Do not let disconnected hoses and
couplers contact a dirty oor. Keep harmful
material out of hydraulic uid. Dirt in hy-
draulic uid causes valve failure In Tool and In
Powerig Hydraulic Unit.
WARNING: Huck recommends that only Huck
Powerig Hydraulic Units be used as a power
source for Huck installation equipment. Hy-
draulic power units that deliver high pressure for
both PULL and RETURN, AND ARE NOT EQUIPPED
WITH RELIEF VALVES ARE SPECIFICALLY NOT REC-
OMMENDED AND MAY BE DANGEROUS.
CAUTIONS: Do not abuse the tool by drop-
ping it, using it as a hammer, or otherwise
causing unnecessary wear and tear.
Reasonable care of installation tools by operators
is an important factor in maintaining tool e-
ciency and reducing down time.
WARNING: Correct PULL and RETURN pres-
sures are required for operator’s
safety and for Installation Tool’s function.
Pressure Gauge T-124833CE is available for check-
ing pressures. See Tool Specications and Gauge
Instruction Manual. Failure to verify pressures
may result in severe personal injury.
WARNING: Be sure to connect Tool’s
hydraulic hoses to Powerig Hydraulic Unit
before connecting Tool’s switch control cord
to unit. If not connected in this order and dis-
connected in the reverse order, severe personal
Injury may occur.
CAUTION: Do not use TEFLON® tape on
pipe threads. Pipe threads may cause tape
to shred resulting in tool malfunction.

2581 2582 2583 Hydraulic Installation Tools (HK1173)
10
HUCKBOLT® FASTENER INSTALLATION:
Place pin in workpiece and place collar over pin. See
WARNING. (If Collar has only one tapered end, that
end MUST be out toward tool - not next to workpiece.)
Hold pin and push nose assembly onto pin protruding
through collar until nose anvil touches collar. Depress
trigger and hold until collar is swaged and pintail breaks.
Release trigger. Tool will go into RETURN stroke. Tool
and nose are ready for next installation cycle.
BLIND FASTENER INSTALLATION:
Fastener may be placed in workpiece or in end of nose
assembly . See WARNING. In either case, tool/nose must
be held against work and at right angles to it. Depress
and hold trigger until fastener is installed and pintail
breaks. Release trigger. Tool will go into its return stroke.
Tool/nose are ready for next installation cycle.
FOR SAFE OPERATION, THIS SECTION MUST BE READ AND UNDERSTOOD.
WARNINGS: Only use compatible equipment with this tool.
To avoid severe personal injury, wear approved
eye and ear protection.
Be sure of adequate clearance for operator’s hands before
proceeding with fastener installation.
The collar flange must be against work piece.
Do NOT attempt to install a pin without placing the fastener and
collar in the work piece (structure to be fastened).
Do NOT attempt to install a pin without a properly oriented collar in place.
If these safety measures are not followed, the fastener could eject with great velocity, the pintail could
break and eject, causing severe personal injury, or the teeth or grooves can strip.
To avoid pinch point, never place hand between nose assembly and work piece.
CAUTIONS: Remove
excess gap from
between the sheets.
This permits enough pintail to
emerge from collar for ALL jaw
teeth to engage with pintail.
If ALL teeth do not engage
properly, jaws will be damaged.
Note: In certain situations, it may be permissible to use a BobTail tool & fastener without a collar to remove sheet gap prior to full
installation with a collar. Consult qualied Huck engineering personnel before attempting this operation.
General Instruction: Operators should receive training from qualied personnel. Do not bend tool to free if stuck. Tool should
only be used to install fasteners. Never use as a jack/spreader or hammer.
Do NOT install a fastener without a
workpiece (structure to be fastened), a pin,
and a properly oriented collar in place.
Do NOT pull a fastener
with the collar upside
down.
CORRECT CORRECT
Bead UP Flange DOWN
Operating Instructions
A
501102
Back-up Ring
504438
O-ring
110439
Female
Connector
110438
Male Connector
Figure 5
Use a fine India stone
to remove any nicks or
burrs from diameter
A and leading edge
to prevent damage to
O-ring.
Hydraulic Couplings

2581 2582 2583 Hydraulic Installation Tools (HK1173)
11
GOOD SERVICE PRACTICES
The efficiency and life of your installation tool depends
upon proper maintenance and good service practices.
Using this manual will help give you a clear understanding
of your tool and basic maintenance procedures.
Please read this entire page before proceeding with
maintenance/repair.
Individual parts must be handled carefully and
examined for damage or wear. Replace parts where
required. Always replace O-rings and back-up rings
when the tool is disassembled for any reason.
Use proper hand tools in a clean well lit area for
maintenance and/or repair. Always be careful to keep dirt
and debris out of pneumatic and hydraulic systems. Only
standard hand tools are required in most cases. Where a
special tool is required, the description and part number are given.
While clamping installation tool and/or parts in a vise, and
when parts require force, use suitable soft materials to
cushion impact. For example, using a half-inch brass drift,
wood block and/or vise with soft jaws greatly diminishes
the possibility of a damaged tool. Remove components in
a straight line without bending, cocking or undue force,
and reassemble tool with the same care.
Consult  section of this manual if a
malfunction occurs. Where a part number (P/N) is given,
HUCK sells that part.
FLUID MAINTENANCE
For fluid maintenance please refer to NAS 1638 class 9 or
ISO CODE 18/15 or SAE level 6
STANDARD SEALANTS AND LUBRICANTS
Coat hose fitting threads with a non-hardening TEFLON®
thread compound such as Threadmate™, which is available
from HUCK in a 4oz. tube as part number 508517.
Smear LUBRIPLATE 130AA, or equivalent lubricant, on
O-rings and mating surfaces this prevents nicking or
pinching O-rings on any rough or tight spot and increases
ease of assembly. (LUBRIPLATE 130AA is available from
HUCK in a tube as part number 502723.)
SERVICE PARTS KIT
Service parts kits contain perishable parts for your specific
tool. For convenience and as experience indicates, keep
extra kits (O-rings, back-up rings, and other standard
items) and tool parts on hand.
For additional information/specifications on O-rings and
back-up rings, see notes and specifications for standard parts.
Inspect tool daily. Check hoses, fittings and disconnects
for leaks or damage.
PREVENTIVE MAINTENANCE
System Inspection
Operating efficiency of the tool is directly related to
performance of the complete system, including tool and
nose assembly, hydraulic hoses, control trigger assembly
and the Powerig® Hydraulic Unit. Therefore, an effective
preventive maintenance program includes scheduled
inspections of the system to detect and correct minor
troubles.
1. Inspect tool for external damage.
2. Verify that hoses and fittings, and trigger connections
are secure.
3. Inspect hydraulic hoses for signs of damage. Replace
if required.
4. Inspect tool, hoses, and Powerig Hydraulic Unit
during operation to detect abnormal heating, leaks or
vibration.
POWERIG HYDRAULIC UNIT MAINTENANCE
Maintenance and repair instructions are in applicable
Powerig Hydraulic Unit Instruction Manual.
TOOL AND NOSE ASSEMBLY MAINTENANCE AND
PRECAUTIONS
Whenever disassembled, and also at regular intervals
(depending on severity and length of use), replace all
O-rings and back-up rings. Spare Parts Kits should be kept
on hand. Inspect cylinder bore, piston and rod/extension,
and unloading valve for scored surfaces, excessive wear or
damage, and replace parts as necessary.
On any assembly with UNITIZEDTM Jaws, clean all parts
in mineral spirits or isopropyl alcohol only. Under
no circumstances should jaws come in contact with
other solvents. Also, do not let jaws soak; dry the jaws
immediately after cleaning. Dry other parts before
assembling.
Urethane soaks up other solvents, then swells up and
becomes unusable. Use a sharp pointed “pick” to remove
embedded particles from the pull grooves of the jaws.
Maintenance
CAUTION: Do not use TEFLON® tape on pipe
threads. Pipe threads may cause tape to
shred resulting in tool malfunction.
Nose Assembly Installation and Removal
Cross-Section of Nose Assembly shown
Anvil
Collet/Spindle
Extension
ATTACHING INSTALLATION NOSE ASSEMBLY:
1. Thread collet/spindle extension onto piston and tighten with wrench.
2. Slide Anvil over collet/spindle extension until it bottoms.
3. Slide retaining nut (and rotatable stop if applicable) over anvil and thread
onto tool. Tighten retaining nut with a wrench.
REMOVING INSTALLATION NOSE ASSEMBLY:
1. Loosen retaining nut with a wrench. Unthread retaining nut and slide it
off the anvil.
2. Remove the anvil from collet/spindle.
3. Unthread collet/spindle extension.

2581 2582 2583 Hydraulic Installation Tools (HK1173)
12
The following procedure is for complete disassembly.
Disassemble only subassemblies necessary to check
and replace damaged seals, wipers, back-up rings and
components. Always replace seals, wiper, O-rings and
back-up rings of disassembled subassemblies.
1. Read WARNING Disconnect tool’s electrical
connector from hydraulic unit. Uncouple tool’s
hydraulic hoses and drain into a container.
 
wrench. Slide nose assembly anvil away from tool.
Unscrew collet from tool piston.
3. Unscrew four screws from handle assembly. Remove
screws and nuts. Separate handle halves. (Figure 6)
4. (Optional) Unscrew hydraulic hoses from tool. NOTE:
Do not remove hydraulic hoses from tool unless
replacing them.
5. Remove quick disconnects from hoses, and push
rearward on piston until remaining hydraulic fluid is
drained into container, and discard fluid.
6. 2581, 2582, 2583: Lift trigger switch assembly from
handle half. Pull control cord out of built-in handle strain
relief. Pull both bullet connectors apart. (Figures 6 & 9)
A2581, A2582, A2583: Lift air trigger assembly from
handle half. Pull air hose out of handle’s built-in strain
relief. (Figure 10)
DISASSEMBLE CYLINDER ASSEMBLY
7. Remove deflector from end cap. Remove socket head
screw from end cap (barbed retainer of 2581/A2581).
8. Hold a spanner wrench in slots of retaining ring
(barbed retainer of 2581/A2581). Loosen and remove
retainer.
9. Push piston, with unloading valve, and end cap/rear
gland out of tool. (For 2581 & A2581, use optional
piston assembly bullet) See (Figure 7)
10. Slide end cap and unloading valve from piston.
11. Use a small diameter pointed rod to remove all seals,
wipers, O-rings and back-up rings from components.
SERVICING TRIGGER SWITCH ASSEMBLY
2581, 2582, 2583:
Remove switch. Loosen set screw and carefully pry
switch out with a small screw driver. Disconnect bullet
connectors from cord. Pull cord out. (Figures 6 and 12)
SERVICING AIR TRIGGER ASSEMBLY
A2581, A2582, A2583:
Unscrew air trigger assembly. Loosen air fitting. Pull out
air trigger hose. Loosen air quick disconnect and remove
it. (Figure 13)
WARNING: Be sure to disconnect tool
control trigger system from Powerig®
Hydraulic Unit before disconnecting tool
hydraulic hoses from unit. If not disconnected in
this order before any maintenance or cleaning is
done, severe personal injury may occur.
Figure 6
Figure 7
Press
Piston Assembly
Tool 123111-1
Spacer 123112-1
Piston
2581 shown
Pintail
Deflector
End Cap or
Barbed Retainer
Screw
Left Half of
Handle
Screw (4)
Bullet
Connectors
Trigger Switch Assy
Cylinder Head Assy
Nut (4)
Right Half
of Handle
Hose Assy (2)
Tool Disassembly Procedure

2581 2582 2583 Hydraulic Installation Tools (HK1173)
13
Figure 8
2581/A2581 Front Gland Assembly
and Piston Assembly
GLYD Ring
“special” O-Ring
Front Gland Assembly
Piston Assembly
Tool Piston
Please Note the
Polyseal Orientation
2581
A2581
Piston
Refer to appropriate illustrations and Maintenance.
Clean components with mineral spirits or similar solvent.
Inspect for wear/damage and replace as necessary.
Replace all seals of disassembled components. Use seals
from Service Parts Kit. Smear LUBRIPLATE 130AA or Parker
Super-O-Lube on O-rings, Back-up Rings, and mating
parts to ease assembly. Assemble tool taking care not to
damage seals.
2581, A2581 PREP:
1. Screw GLYD ring assembly tool on back of cylinder to
prevent damage to GLYD ring when inserting piston
and gland assembly. Install GLYD ring assembly on
piston as follows: Place the special O-ring in groove.
Roll GLYD ring’s diameter to a diameter smaller than
piston before placing glyd ring on top of O-ring. Coat
GLYD ring with suitable lubricant to insure that ring
stays in place during piston installation. (Figure 8)
2. Taking care not to pinch inner ring, press polyseal
into front gland housing, and install O-ring and
back-up ring on front gland assembly. NOTE: To keep
polyseal in front gland, push front wiper housing
into front gland. Hold housing against polyseal
while pressing front gland/polyseal onto piston.
2582, 2583, A2582, A2583 PREP:
1. Install wiper and polyseal into front cylinder grooves as
shown in figures 10 and 11.
2. Install O-ring and back-up rings on piston.
ALL MODELS:
3. Install stroke limiter, if used, on rear of piston.
4. Screw piston assembly tool and spacer on front of
piston.
5. Install stop and thread retaining nut onto cylinder to
act as a stand-off.
6. Carefully drive, or press, piston assembly into cylinder.
7. Remove retaining nut and stop, and piston assembly
tool (and GLYD ring insertion tool for 2581 family).
8. Install unloading valve into piston with four flats
toward REAR of tool.
9. 2581, A2581: Install following in rear gland: O-ring
and back-up ring, polyseal, spacer, and retaining ring;
as shown in Figure 9. Install wiper in rear gland. Align
recess in rear gland with groove in cylinder, and press
assembled gland into cylinder. Install locking disc.
2582, A2582, 2583, A2583: Install O-ring, back-up
ring, and polyseal on end cap as shown in Figure 10
or 11, and press assembled end cap into cylinder.
10. Screw barbed retainer/retaining ring into cylinder
until it bottoms out, then back it out to first visible
threaded hole in rear gland/barbed retainer. Install
and tighten locking screw.
11. If hydraulic hoses have been removed, thread hoses
into cylinder.
12. 2581, 2582, 2583: Assemble electrical cord to
connector. Attach cord to trigger switch. Place switch
into handle. Press cord down through handle half
built-in strain relief.
A2581, A2582, A2583: Place air trigger assembly
into handle’s trigger fitting, and press down through
handle half built-in strain relief.
13. Assemble handle halves and fasten with screws and
nuts as shown in Figure 6.
14. 2581, A2581: Before attaching nose assembly and
using tool, read entire Preparation for Use section.

collet. Use pintail tube if necessary.
15. See WARNING in DISASSEMBLY and reverse the given
procedure i.e. Connect hoses first, and then connect
electrical control cord.
Tool Assembly Procedure

2581 2582 2583 Hydraulic Installation Tools (HK1173)
14
2581 & A2581 Head and Handle Assembly
Figure 9
108279
Pintail Tube
123136
Piston Assy
129565
Cylinder
505894
Wiper
123138
Front Wiper
Housing
501118
Back-up Ring
123142 Rear
Gland Assembly
123139 Front
Gland Assembly
506180
GLYD Ring
123141
Spacer
506160 Polyseal
Note the orientation
506160 Polyseal
Note the orientation
500824
O - Ring
500824
O - Ring
501118
Back-up Ring
506030
Screw
505991
Wiper 123146
Barbed Retainer 123144
Deflector
122764 Locking Disc
506182 Retaining Ring
Stroke Limiter
Unloading (Dump) Valve
131483
Handle Assy
110670
Stop
117824
Retaining Nut
See Figure 12 for 2581 Trigger, Hoses, and Cord part numbers.
See Figure 13 for A2581 Trigger and Hoses Part numbers.
NOTES:
1. 123136 - Piston Assembly
contains hydraulic piston and
components:
• 123135 Piston
• 509047 GLYD Ring
Hydraulic piston not sold separately.
2. 123139 - Front Gland Assembly
contain front gland and components:
• 123137 Front Gland
• 506160 Polyseal
• 123138 Front Wiper Housing
• 505894 Wiper
• 500824 O-Ring
• 501118 Back-Up Ring
Front gland not sold separately.
3. 123142 - Rear Gland Assembly
contains rear gland and components
marked:
• 123140 Rear Gland
• 506181 Polyseal
• 123141 Spacer
• 506182 Retaining Ring
• 505991 Wiper
• 500824 O-Ring
• 501118 Back-Up Ring
Rear gland not sold separately.
Part
Number
Stroke
Limiter
Dump
Valve
Tool
Stroke
2581, 2581-2,
2581-25, 2581-38 N/A 123145 .875
2581-500 130887 130886 .500
2581-750 130971 130972 .750

2581 2582 2583 Hydraulic Installation Tools (HK1173)
15
505827 Polyseal
Note the orientation
505865 Polyseal
Note the orientation
Part
Number
Stroke
Limiter
Dump
Valve
Tool
Stroke
2582, 2582-2,
2582-25 N/A 118817-2 .750
2582-625, 2582-
625-25
120739 118817-4 .625
2582-500 120739-1 118817-6 .500
2582 & A2582 Head and Handle Assembly
Figure 10
108279
Pintail Tube
120678 Piston Assy
129561 Cylinder
505894
Wiper
500824
O-Ring
501118
Back-up
Ring
500823
O-Ring
501118
Back-up Ring
500060
Screw
118877
End Cap Assembly
124210
Deflector
NOTE:
For long pintail fasteners, use OPTIONAL Deflector P/N 118809-1.
118816 Retaining Ring
Stroke Limiter
Unloading (Dump) Valve
110670
Stop
117824
Retaining Nut
501117
Back-up Ring
See Figure 12 for 2582 Trigger, Hoses, and Cord part numbers.
See Figure 13 for A2582 Trigger and Hoses Part numbers.
131483
Handle Assy
NOTES:
1. 120678 - Piston Assembly
contains hydraulic piston and
components:
• 120339 Piston
• 505791 O-Ring
• 501146 Back-up Ring
Hydraulic piston not sold separately.
2. 118877 - End Cap Assembly
contains end cap and components:
• 122592 End Cap
• 501117 Back-up Ring
• 500823 O-Ring
• 505827 Polyseal
End Cap not sold separately.

2581 2582 2583 Hydraulic Installation Tools (HK1173)
16
2583 & A2583 Head and Handle Assembly
Figure 11
Piston Assembly
120679 (2583/
A2583) 131490
(2583-MGL-12)
129563 Cylinder
505894
Wiper
505791
O-Ring
501146
Back-up
Ring
505865 Polyseal
Note the orientation
505827 Polyseal
Note the orientation
501146
Back-up Ring
500060
Cap Screw 120357
Pintail Tube
(2583/A2583 only)
122592
End Cap
124210
Deflector
118816
Retaining Ring
Handle Assembly
124867-1 (2583/A2583)
131483 (2583-MGL-12)
118817-3
Unloading (Dump) Valve
110670
Stop 117824
Retaining Nut
501117
Back-up Ring
500823
O-Ring
See Figure 12 for 2583 Trigger, Hoses, and Cord part numbers.
See Figure 13 for A2583 Trigger and Hoses Part numbers.
NOTE:
For long pintail fasteners, use
OPTIONAL Deflector P/N 118809-1.
NOTES:
1. Piston Assembly - 120679
for 2583/A2583 tool
contains hydraulic piston and
components:
• 120351 Piston
• 505791 GLYD Ring
• 501146 Back-up Ring
Hydraulic piston not sold separately.
Piston Assembly - 131490
for 2583-MGL-12 tool
contains hydraulic piston and
components:
• 131489 Piston
• 501146 Back-up Ring
• 505791 O-Ring
Hydraulic piston not sold separately.
2. 118877 - End Cap Assembly
contains end cap and components:
• 122592 End Cap
• 501117 Back-Up Ring
• 500823 O-Ring
• 505827 Polyseal
End Cap not sold separately.

2581 2582 2583 Hydraulic Installation Tools (HK1173)
17
2581, 2582, 2583 Trigger, Hoses, and Cord
Figure 12
131482
Trigger
Assembly
See Figure 09 for 2581 and A2581 Head Assembly part numbers.
See Figure 10 for 2582 and A2582 Head Assembly part numbers.
See Figure 11 for 2583 and A2583 Head Assembly part numbers.
(2582 HEAD OUTLINE SHOWN)
(Handle shown
partially transparent
solely for the
purpose of indicating
internal details.)
507107 Self-locking Nut
500064 Screw (from opposite side)
HPHX12-AA10 Hydraulic Hoses
110439 Female Connector
110438 Male Connector
503431 Reducing Bushing
508944
Trigger
Switch
124878-1 Trigger Housing
131482 Trigger Assembly
131484-1 Cord Assembly *
(Contains trimmed cord with plug)

2581 2582 2583 Hydraulic Installation Tools (HK1173)
18
A2581, A2582, A2583 Trigger and Hoses
Figure 13
HPHX12-AA10 Hydraulic Hoses*
124869 Air Hose
and Trigger
Assembly
(See detail at right)
See Figure 09 for 2581 and A2581 Head Assembly part numbers.
See Figure 10 for 2582 and A2582 Head Assembly part numbers.
See Figure 11 for 2583 and A2583 Head Assembly part numbers.
(2582 HEAD OUTLINE SHOWN)
(Handle shown
partially transparent
solely for the purpose
of indicating internal
details.)
507107
Self-locking Nut
500064 Screw
(from opposite side)
110439 Female Connector
110438 Male Connector
503431 Reducing Bushing
112555
Trigger
Stem
124887
Air Trigger
Housing
126339
Trigger Body
500777 O-Ring
500773 O-Ring
124883 Air Hose
113021
Quick Disconnect
DETAIL
124889 Air Hose and Trigger Assembly
*Tools are shipped standard with 12 ft. hoses. For other lengths available, see 

2581 2582 2583 Hydraulic Installation Tools (HK1173)
19
1. Tool fails to operate when trigger is pressed.
a. Inoperative Powerig® Hydraulic Unit. See
applicable instruction manual.
b. Loose electrical connections.
c. Damaged trigger assembly.
d. Loose or faulty hose coupling.
e. Unloading valve not installed in Tool.
2. Tool operates in reverse.
a. Reversed hose connections between hydraulic unit
and tool.
3. Tool leaks hydraulic fluid.
a. Defective tool O-rings, Polyseal or piston seals.
b. Loose hose connections at tool.
c. Damaged hose or fittings.
4. Hydraulic couplers leak fluid.
a. Damaged or worn O-rings in coupler body. See
Coupler 110440.
b. Debris or contamination in couplers.
5. Hydraulic fluid overheats.
a. Powerig® Hydraulic Unit not operating properly.
See applicable instruction manual.
b. 918 or 918-5 Powerig® Hydraulic Unit running in
reverse. See applicable instruction manual.
c. Ambient temperature at tool or Powerig®
Hydraulic Unit is excessive.
d. Unloading valve installed incorrectly.
6. Tool operates erratically and fails to install fastener
properly.
a. Low or erratic hydraulic pressure: Air in system.
b. Damaged or worn piston seal, damaged or worn
anvil O-ring or polyseal in tool.
c. Unloading valve installed incorrectly.
d. Excessive wear or sliding surfaces of Tool parts.
e. Excessive wear of unloading valve in Tool.
7. Pull grooves on fastener pintail stripped during PULL
stroke.
a. Operator not sliding anvil completely onto fastener
pintail.
b. Incorrect fastener grip.
c. Worn or damaged jaw segments.
d. Metal particles in pull grooves of jaw segments.
e. Excessive sheet gap.
8. Collar of HUCKBOLT® fastener not completely
swaged.
a. Improper Tool operation. See Troubleshooting,
number 6.
b. Scored anvil.
c. Incorrect fastener grip.
d. Excessive sheet gap.
9. Jaw segments do not maintain proper position in
collet.
a. Improper operation of follower. Check number of
follower O-Rings.
10. Tool hangs up on swaged collar of HUCKBOLT®
fastener.
a. Improper Tool operation. See Troubleshooting,
number 6.
b. RETURN pressure too low.
c. Nose assembly not installed correctly.
11. Pintail of fastener fails to break.
a. Improper Tool operation. See Troubleshooting,
number 6.
b. Pull grooves on fastener stripped.. See
Troubleshooting, number 7.
c. PULL pressure too low.
d. Worn unloading valve.
12. Shear collar on Huck blind fastener not driven.
a. Improper Tool operation. See Troubleshooting,
number 6.
b. Worn or damaged driving anvil in nose assembly.
Troubleshooting
Always check the simplest possible cause of a malfunction first. For example, a loose or disconnected trigger line. Then
proceed logically and eliminate each possible cause until the defect is found. Where possible, substitute known good
parts for suspected defective parts. Use chart as an aid in troubleshooting.

2581 2582 2583 Hydraulic Installation Tools (HK1173)
20
Notes