Huck 2620 User manual

November 8,2017
HK1012
Makers of Huck®, Marson®, Recoil®
Brand Fasteners, Tools & Accessories
Instruction Manual
2620, A2620, 2620-PT, and A2620-PT
Hydraulic Installation Tools
EC Declaration of Conformity
2
Safety Instructions
3-4
Description
5
Specications
5
Principle of Operation
6
Preparation for Use
7
Operating Instructions
8
Maintenance
9-10
Hydraulic Couplings
10
Sticker Locations
10
Disassembly
11
Assembly
12-13
Components Drawings
and Parts Lists
14-18
Troubleshooting
19
Kits and Accessories
20

2
2620 series Hydraulic Installation Tools (HK1012)

3
2620 series Hydraulic Installation Tools (HK1012)
I. GENERAL SAFETY RULES:
1. A half hour long hands-on training session with
qualied 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
qualied 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 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 effectiveness of safety measures and increase
operator risk.
6. Do not discard safety instructions; give them to the
operator.
7. Do not use assembly 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. Read MSDS Specications before servicing the tool.
MSDS specications are available from the product
manufacturer or your Huck representative.
11. Only genuine Huck 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
ef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.
Continued on next page...
Safety Instructions
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 specic
instruction.
WARNINGS: Must be understood to avoid
severe personal injury.
CAUTIONS: Show conditions that will damage
equipment or structure.

4
2620 series Hydraulic Installation Tools (HK1012)
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. 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
qualied 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 assembly 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. 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.
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.
X. 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.
Safety Instructions (continued)
WARNINGS:
Do not exceed maximum pull or return settings
on tool.
Be sure all hose connections are tight. All tool
hoses must be connected.
Where the following trade names are used in this manual, please note:
DEXRON is a registered trademark of General Motors Corporation.
Loctite is a registered trademark of Henkel Corporation, U.S.A.
LUBRIPLATE is a registered trademark of Fiske Brothers Rening Co.
MERCON is a registered trademark of Ford Motor Corp.
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
Teon is a registered trademark of E. I. du Pont de Nemours and Company.
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.

5
2620 series Hydraulic Installation Tools (HK1012)
Specifications
MAX OPERATING TEMP: 125° F (51.7° C)
MAX FLOW RATE: 2 gpm (7.5 l/m)
MAX PULL PRESSURE: 7400 psi (510 bar)
MAX RETURN PRESSURE: 3200 psi (220 bar)
PULL CAPACITY: 17,745 lbs @ 6500 psi
(78.93 kN @ 448 bar)
STROKE: 1.437 inches (3.65 cm)
WEIGHT: 9.87 lbs (4.48 kg)
POWER SOURCE: Huck POWERIG® Hydraulic Unit
HOSE KITS: Use only genuine HUCK Hose Kits rated @
10,000 psi (689.5 bar) working pressure.
HYDRAULIC FLUID: Hydraulic uid shall meet DEXRON®
III, DEXRON VI, MERCON®, Allison C-4 or equivalent
Automatic Transmission Fluid (ATF) specications. Fire-
resistant uid may be used if it is an ester-based uid
such as Quintolubric® HFD or equivalent. Water-based
uid shall NOT be used as serious damage to equipment
will occur.
2.8
(7.2)
1.3
(3.4)
3.0
(7.7)
6.5
(16.6)
5.4
(13.9)
2.1
(5.4)
7.0
(17.8)
1.6
(4.1)
Ø
Ø
R
10°
Inches
(cm)
Models
2620 & A2620
2.8
(7.2)
10.1
(25.8)
1.3
(3.4)
3.8
(9.7)
6.2
(15.9)
2.1
(5.4)
7.0
(17.8)
1.6
(4.1)
R
10° Ø
Ø
Models
2620-PT & A2620-PT
Inches
(cm)

6
2620 series Hydraulic Installation Tools (HK1012)
PINTAIL EJECTOR
PULL PISTON
TRIGGER SWITCH
DUMP VALVE
HYDRAULIC HOSES
 PRESSURE
 PRESSURE
 PRESSURE
 PRESSURE
D
Pressurized Oil
Return Oil
 
Principle of Operation
PULL PRESSURE
PULL Cycle (Figure 1a)
When the Trigger Switch is pressed, a solenoid-
operated valve in the POWERIG® directs pressurized
hydraulic uid through the PULL hose to the front side
of the Piston; uid on the RETURN side ows back to
the tank (Figure 1a). The piston and nose assembly collet
move rearward, installing the fastener.
When the piston reaches the end of the PULL stroke,
it uncovers ats on the rear side of the Dump Valve.
These ats provide a passage for the hydraulic uid
from the PULL side to the RETURN side of the piston,
“unloading” or “dumping” the pressurized uid back to
the tank POWERIG (Figure 1a).
RETURN PRESSURE
RETURN Cycle (Figure 1b)
When the trigger is released, the solenoid is
de-energized and the valve directs pressurized uid to
the rear side of the piston; uid on the PULL side ows
back to the POWERIG tank (Figure 1b). The piston and
collet to move forward, and the tool and nose assembly
are pushed off the swaged (installed) fastener. When the
piston reaches the end of the RETURN stroke, pressure
builds up causing the POWERIG to shut off, completing
the cycle.
Figure 1a Figure 1b

7
2620 series Hydraulic Installation Tools (HK1012)
Preparation for Use
POWER SOURCE CONNECTIONS
Use a Huck POWERIG® Hydraulic Unit, or equivalent,
that has been suitably prepared for operation.
NOTE: Review all WARNINGs on this page.
1. Turn OFF the POWERIG and disconnect its power
supply. Connect the tool hoses to the POWERIG.
2. Connect tool’s control switch electrical cord to the
POWERIG.
3. Connect the POWERIG to the power supply. Turn
ON the POWERIG. Press and hold the tool trigger
for 30 seconds; then press the trigger a few times
to cycle the tool and circulate the hydraulic uid.
Observe the action of the tool and check for leaks.
Turn OFF the POWERIG.
4. Disconnect the tool’s control switch electrical cord
from the POWERIG. Disconnect the POWERIG from
its power supply. Select the correct nose assembly
for the fastener to be installed (see Nose Assembly
Selection Chart). Attach the nose assembly.
5. Re-connect the POWERIG to the power supply.
Reconnect the tool’s trigger control system to the
POWERIG. Check the operation of nose assembly;
install fasteners in a test plate of correct thickness
with proper size holes. Inspect installed fasteners.
If fasteners do not pass inspection, see TroubleshooTing
to investigate possible causes.
CAUTION: Keep disconnected hoses,
couplers, and hydraulic uid away from
dirty surfaces and free of foreign matter.
Contaminated uid can cause tool and
POWERIG valve failures.
CAUTION: Apply Parker Threadmate®,
Loctite®567, or Slic-Tite®to male pipe
threads (per manufacturer’s instructions) to
prevent leaks and to ease assembly.
WARNINGS:
- Read entire manual before using tool.
- A 30-minute training session with
qualied personnel is recommended
before using Huck equipment.
- When operating Huck equipment,
always wear approved eye and hearing
protection.
- Be sure there is adequate clearance for the
operator’s hands before proceeding.
- Connect the tool’s hydraulic hoses to
the POWERIG®Hydraulic Unit before
connecting the tool’s switch control cord
to it. If not connected in this order, severe
personal injury may occur.
WARNING: Huck recommends that a Huck
POWERIG®be used to power Huck tools.
(Only use the POWERIG as indicated in
its instruction manual.) Hydraulic power
units that deliver high PULL and RETURN
pressures—but which are NOT equipped
with RELIEF VALVES—are specically NOT
RECOMMENDED and may be dangerous.
Set the PULL and RETURN pressures as
specied in specificaTions. Failure to properly
set these pressures could result in serious
personal injury.
Use Huck Pressure Gauge (P/N T-124883CE)
as indicated in its instruction manual.
Improper pressure settings may result in
severe personal injury.
WARNING: Connect the tool’s hydraulic
hoses to the POWERIG before connecting
tool’s trigger control system to the
POWERIG. If not connected in this order,
severe personal injury may occur.

8
2620 series Hydraulic Installation Tools (HK1012)
Operating Instructions
Review all CAUTIONs and WARNINGs prior to
installing fasteners. If the tool malfunctions, consult the
TroubleshooTing section before attempting any repairs.
GENERAL
- 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.
- Reasonable care of tools by operators is an important
factor in maintaining efciency and reducing
downtime.
TO INSTALL A HUCKBOLT® FASTENER:
1. Place a fastener in the workpiece and place the collar
over the fastener.
NOTE: If the collar has one tapered end, that end
must be out toward tool; not next to the sheet.
2. Hold the fastener in the hole and push the nose
assembly onto the fastener protruding through the
collar until the nose assembly anvil touches the
collar. Hold the tool at a right-angle (90 degrees) to
the work.
3. Move hands away from fastener and structure.
Keep hands away from the front of the tool during
operation; the tool anvil advances forward.
4. Press and hold the trigger until the collar is swaged
and the pintail breaks. Release the trigger; the tool
will perform its RETURN stroke.
The pressure is re-directed; the piston moves forward;
and the tool is pushed off the fastener and ready for the
next installation cycle.
CAUTIONS:
- To avoid structural and tool damage, be
sure there is sufcient clearance for the
nose assembly at full stroke.
- Do not abuse the tool by dropping
it, using it as a hammer, or otherwise
causing unnecessary wear and tear.
- Do not connect tool’s hoses to each other
or use hoses as a handle for carrying.
WARNINGS:
- Wear approved eye and hearing
protection.
- Ensure adequate clearance for operator’s
hands before installing fasteners.
- Be sure that pintail deector is attached
to the tool and directed away from all
personnel.
- Do not pull on a pin without placing a
fastener/collar in a workpiece. Make sure
that the collar chamfer is out, toward the
tool. Pins eject with great velocity when
pintails break off or teeth/grooves strip,
which could cause serious injury.
CAUTION: Remove the excess gap from
between the sheets to ensure that enough
of the pintail emerges from the collar
for ALL chuck jaw teeth to engage with
the pintail. If ALL teeth do not engage
properly, chuck jaws will be stripped and/
or damaged.
NOTE: “Gap” is the space between sheets.
Gap is “excessive” if not enough pintail
sticks through the collar for the nose
assembly jaws to grip.

9
2620 series Hydraulic Installation Tools (HK1012)
The operating efciency of your tool is directly related to
performance of the entire system, including the 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. NOTE: Where a part number (P/N) is given,
Huck sells that part.
SYSTEM INSPECTION
Inspect the tool daily. Check hoses, ttings, and
couplings for leaks and damage. Clear air-lines of dirt
and water.
Service the tool in a clean, well-lighted area. Take
special care to prevent contamination of pneumatic and
hydraulic systems.
Carefully handle all parts and components. Before
reassembly, examine them for damage and wear; replace
when necessary. Replace O-rings and Back-up rings when
the tool is disassembled for any reason.
Have available all necessary hand tools (standard and
special); a half-inch brass drift and wood block; an arbor
press; and a soft-jaw vise. Unsuitable hand tools could
cause tool damage. See KiTs & accessories.
Follow the disassembly and assembly procedures in
this manual. If Huck recommended procedures are not
followed, the tool could be damaged.
Disassemble and assemble tool components in a straight
line. Do NOT bend, twist, or apply undue force.
Apply continuous steady pressure to disassemble a
component. An arbor press provides steady pressure to
press a component into or out of an assembly.
Never force a component if it is misaligned. Reverse the
procedure to correct misalignment and start over.
FLUID MAINTENANCE
See specificaTions for uid type. For uid maintenance,
refer to NAS 1638 class 9, ISO CODE 18/15, or SAE level
6. Dispose of uid in accordance with local environmental
regulations. Recycle steel, aluminum, and plastic parts in
accordance with local lawful and safe practices.
STANDARD SEALANTS, LUBRICANTS
Apply Parker Threadmate®, Loctite® 567, or Slic-Tite®to
male pipe threads per manufacturer’s instructions (to ease
assembly and to prevent leaks).
Smear LUBRIPLATE®130-AA or SUPER-O-LUBE®on
rings and mating parts to ease assembly and to prevent
damaging rings on rough and sharp surfaces.
PREVENTIVE MAINTENANCE
Huck recommends that you:
Inspect the tool and nose daily for damage and wear.
Inspect the tool before each use for leaks.
Verify that hoses, ttings, and trigger connections are
secure and free of leaks.
Inspect hydraulic hoses for signs of damage. Replace if
necessary.
Inspect the tool, hoses, and POWERIG during operation
to detect abnormal heating, leaks, or vibration.
For supplementary information, see TroubleshooTing,
Disassembly,assembly, and assembly Drawings in this
manual.
POWERIG MAINTENANCE
Maintenance instructions and repair procedures are in
the appropriate POWERIG Instruction Manual.
TOOL MAINTENANCE
Whenever disassembled, and at regular intervals,
depending on use, replace all O-rings and Back-up rings.
Tool-specic Spare Parts Service Kits (P/N 2620KIT or
2620-PTKIT) should be kept on hand.
Inspect cylinder bore, piston, piston rod, and unloading
valve for scored surfaces, excessive wear, and damage;
replace as necessary.
Maintenance
CAUTIONS:
Consult the Material Safety Data Sheet
(MSDS) before servicing tool.
Keep foreign matter out of the hydraulic
system. Keep separated parts away from dirty
work surfaces.
Dirt and debris in hydraulic uid causes valve
failures in tool and POWERIG®.
Check the Assembly Drawings in this manual
for the proper direction of the ats on the
dump valve.
Always replace all seals, wipers, O-rings, and
Back-up rings when the tool is disassembled
for any reason.
Do NOT use Teon®tape on pipe threads.
Tape can shred and break free into uid lines,
resulting in malfunctions.
continued...

10
2620 series Hydraulic Installation Tools (HK1012)
Maintenance (continued)
NOSE ASSEMBLY MAINTENANCE
Clean nose assemblies daily in mineral spirits to clear
jaws and rinse metal chips and dirt. For a more thorough
cleaning, disassemble the nose assembly. Use a pointed
“pick” to remove embedded particles from the pull
grooves of the jaws.
Clean all parts of any assembly with UNITIZEDTM Jaws
in mineral spirits or isopropyl alcohol only; do not let
jaws come in contact with other solvents. Do not let
jaws soak; dry them immediately after cleaning. Huck
recommends drying other parts before re-assembling.
For additional information, see the appropriate Nose
Assembly Data Sheet.
SPARE PARTS SERVICE KITS
Spare Parts Service Kits contain perishable parts
(O-rings, Back-up rings, and other standard items) for
your tool (see KiTs & accessories). For convenience, and
as experience indicates, keep extra kits and tool parts
on hand. As an alternative, you can obtain O-rings and
Back-up rings from any regular retailer of these items.
CAUTION: Damaged jaw teeth, or debris
packed between teeth, will result in fastener
not being installed or being improperly
installed.
Hydraulic Couplings
TIP: Use a ne India stone to remove nicks
and burrs from diameter A and leading edge
to prevent damage to O-ring.
O-ring (P/N 504438) Back-up ring (P/N 501102)
Figure 14
Sticker Locations
The 2620 series tools are labeled with stickers that contain safety and pressure-settings information. These stickers
must remain on the tool and be legible. Any sticker that becomes damaged or worn, or has been removed from the
tool, or when replacing the cylinder, MUST be ordered and placed in the location shown below.
HUCK Year of
Manufacture Scker
590517
CE & WARNING Scker
590512-5 (2620, 2620-15, 2620-PT, 2620-PT-15)
590424-7400 (A2620, A2620-PT)
Figure 15

11
2620 series Hydraulic Installation Tools (HK1012)
Disassembly
This procedure is for complete disassembly of the
tool. Disassemble only those components necessary
to replace damaged rings and worn or damaged
components. Always replace seals, wipers, and rings of
disassembled components. Always use a soft-jaw vise to
avoid damaging the tool.
For component identication, see Figures 2–5, 8–13, and
parTs lisT.
TO DISASSEMBLE THE TOOL:
1. Disconnect the electrical or air connector from the
POWERIG, and then uncouple the hydraulic hoses.
2. Remove the nose assembly from the tool.
3. Unscrew both couplers (nipple & body) from the
hoses; drain the hoses into a container.
4. Push rearward on the piston until the remaining
uid has drained into the container. Discard the
uid.
NOTE: Do NOT remove the hydraulic hoses from
the tool unless replacing them. To access the
hose ttings, slide back the plastic shrouds.
NOTE: Complete step 5 only if the switch, wire, or
connector is to be repaired.
5. Models 2620 & 2620-PT: Remove the retaining nut
and locking ferrule from the strain relief. Loosen the
setscrew and remove the switch. Loosen and remove
the two wires from the switch. Remove the cord
from the tool. Disassemble the Electrical Connector
(P/N 110686). (Figures 8, 9, & 12)
Models A2620 & A2620-PT: Unscrew and remove
the air switch. Remove the retaining nut and locking
ferrule from the air tting. Remove the plastic
tubing and unscrew the remaining part of the tting
from the handle. (Figures 10, 11, & 13)
6. Standard Models: Remove the retaining ring, cover
plate, and locking disk. (Figures 8 & 10)
Model 2620-PT: Remove the deector, screws,
barbed retainer, and locking disk. (Figures 9 & 11)
7. Insert a hex key in the end cap. (Figure 2) Use a
wrench to unscrew the end cap from the cylinder.
8. Standard Models: Remove the O-ring and Back-up
ring. (Figures 8 & 10)
Model 2620-PT: Remove the O-ring, Back-up ring,
retaining ring, washer, Polyseal, and wiper seal.
9. Remove the dump valve from rear of the cylinder.
10. Slide the Spacer (P/N 123112-6) over the threaded
end of the piston. Screw the Piston Assembly Tool
(P/N 123111-6) onto the piston. Press the front
gland and piston assemblies out the rear of the
cylinder. (Figure 3)
11. Remove the Piston Assembly Tool and the spacer.
(Figure 3)
12. Slide the Front Gland Assembly off the piston and
remove the wiper, wiper housing, Back-up ring,
O-ring, and Polyseal. (Figures 8–11)
13. Remove the GLYD Ring from the piston. (Figure 5)
14. Standard Models: Hold the piston in a soft-jaw vise
and remove the Ejector Gland Assembly with the
Hex Key (P/N 122048). (Figures 4, 8 & 10)
15. Standard Models: Remove from gland, ejector rod,
washer, O-rings, wiper, Quad-ring, and Back-up ring.
(Figures 4, 8 & 10)
The tool has been properly disassembled. Store all
re-usable parts (screws and disassembled components)
in a clean, dry area.
WARNING: Disconnect the tool control
trigger system from the POWERIG®before
disconnecting the hydraulic hoses from it.
If not disconnected in this order, serious
personal injury may occur.
128046 End Cap
(2620, 2620-15, A2620)
126981 Hex Key
Figure 2
Press
123111-6 Piston
Assembly Tool
Piston
123112-6 Spacer
Figure 3
Piston122048 Ejector Gland Hex Key
(2620, 2620-15, A2620)
Figure 4

12
2620 series Hydraulic Installation Tools (HK1012)
This section details the re-assembly of the tool. For
component identication, see Figures 2, 4–13, and parTs
lisT.
BEFORE RE-ASSEMBLING THE TOOL:
- Inspect components for scoring, excessive wear, and
damage; replace as necessary. Clean components in
mineral spirits or other solvent compatible with O-ring
seals. Clean O-ring grooves.
- Replace all O-rings, Quad-rings, and Back-up rings.
See Assembly Drawings for guidance on positioning
these rings. Take care not to damage rings. Use the
rings that are supplied in Spare Parts Service Kit
2620KIT. Smear LUBRIPLATE® 130-AA or SUPER-O-
LUBE® on rings and mating parts to ease assembly.
- Apply Parker Threadmate®, Loctite® 567, or Slic-Tite®
to male pipe threads (per manufacturer’s instructions)
to prevent leaks and ease assembly.
TO RE-ASSEMBLE THE TOOL:
1. Standard Models Only: Install the Back-up Ring,
Quad-ring, wiper, O-rings, washer, and Ejector Rod
into the Ejector Gland. (Figures 8 & 10)
2. Standard Models Only: Hold the piston in a soft-
jaw vise and install the assembled Ejector Gland. Use
Hex Key (P/N 122048) to tighten. (Figures 4, 8, &
10)
3. Thread the Piston Assembly Tool (P/N 123111-6)
onto the piston. (Figure 5)
NOTE: Do NOT install Spacer 123112-6.
4. Install the GLYD Ring onto the piston.
5. Install the Polyseal, O-ring, Back-up Ring, wiper
housing, and wiper into the Front Gland.
6. Lubricate the Piston Assembly Tool and the piston;
then slide the assembled gland over the Piston
Assembly Tool onto the piston.
7. Thread the GLYD Ring Insertion Tool (P/N 121694-
2620) into the back of the cylinder. (Figure 6)
8. Use a press to carefully push piston and front gland
assembly into the back of the cylinder. (Figure 6)
Assembly
WARNING: Do not omit any seals during
servicing or re-assembly; leaks will result
and serious personal injury can occur.
CAUTION: When re-assembling the tool,
always replace damaged and defective
parts, and all seals, wipers, and rings of sub-
assemblies.
507412 O-ring 501127 Back-up Ring
505894
Wiper Seal
125763 End Cap
506160
Polyseal
122762 Spacer
506159 Retaining Ring
Note orientaon
of Polyseal
figure 7
Front Gland
Assembly
123111-6 Piston
Assembly Tool
Note orientaon of Polyseal
507412 O-ring
501127 Back-up Ring
507407 Wiper Seal
125610 Wiper Housing
125609 Front Gland
507408 Polyseal
Piston Assembly *
125613 (2620, 2620-15, A2620)
125762 (2620-PT, 2620-15-PT, A2620-PT)
122769-1 GLYD Ring Assembly
* Piston Assemblies include Piston and
figure 5
Press
Piston, Front
Gland, and Piston
Assembly Tool (123111-6)
121694-2620 GLYD
Ring Inseron Tool
figure 6
continued...
CAUTION: Do NOT use Teon®tape on pipe
threads. Tape can shred and break free into
uid lines, resulting in malfunctions.

13
2620 series Hydraulic Installation Tools (HK1012)
9. Remove the Piston Assembly Tool and the GLYD
Ring Insertion Tool from the back of the cylinder.
(Figure 6)
10. From the rear of the cylinder, install the dump valve
with four ats facing rear of the tool. (Figures 8–11)
11. Standard Models Only: Install the O-ring and Back-
up ring on the End Cap. (Figures 8 & 10)
Model 2620-PT: Install Back-up Ring, O-ring, wiper,
Polyseal, washer, and retaining ring into the End
Cap. (Figures 7, 9, & 11)
12. Insert the hex key into the end cap. Use a wrench to
thread the end cap into the back of the cylinder and
tighten. (Figure 2)
13. Standard Models Only: Install the locking disk,
cover plate, and retaining ring. (Figures 8 & 10)
Model 2620-PT: Install the locking disk, barbed
retainer, screws, and deector. (Figures 9 & 11)
14. If removed, reinstall the electrical/air connector.
NOTE: If the switch or wire were removed,
replace as follows:
Models 2620 & 2620-PT: Slide the retaining nut
and ferrule onto the electrical wire. Feed the wire
through the handle and pull out through the trigger
switch hole. Attach the wires to the switch and push
the assembly back into the handle. Tighten the
screw to hold the trigger switch in place. Slide the
ferrule into the strain relief housing, then thread and
tighten the retaining nut (Figure 12).
Models A2620 & A2620-PT: Install the tting
into the handle. Slide the retaining nut and ferrule
over the plastic tubing. Slide the tubing into the
tting and tighten the retaining nut. Screw in the air
trigger and tighten (Figure 13).
15. If removed, install one hydraulic hose in the handle
port “P” and one in port “R”.
16. Screw the coupling nipple (P/N 110438)onto the
PULL pressure hose (from port P of tool). Screw
the coupling body onto the RETURN pressure hose
(from port R of tool). (Figures 12 & 13)
The tool is now assembled and ready for use.
Assembly (continued)
WARNING: Connect the tool’s hydraulic
hoses to the POWERIG®before connecting
the (air or electric) trigger assembly to it. If
not connected in this order, serious personal
injury could occur.
CAUTION: Do NOT use Teon®tape on pipe
threads. Tape can shred and break free into
uid lines, resulting in malfunctions.

14
2620 series Hydraulic Installation Tools (HK1012)
Assembly Drawings Standard Models














 











Figure 8





















 


Figure 9
A2620
2620 & 2620-
15

15
2620 series Hydraulic Installation Tools (HK1012)
Assembly Drawings PT Models




  
















Figure 10


  
















Figure 11
A2620-PT
2620-PT &
2620-PT-15

16
2620 series Hydraulic Installation Tools (HK1012)
The numerical references in the Item column are to the parts labels in Figures 8–11.
Parts List
*Piston 125612 is not sold individually. It is included in Piston Assembly (P/N 125613), which
also contains GLYD Ring Assembly (P/N 122769-1).
** Piston 125761 is not sold individually. It is included in Piston Assembly (P/N 125762), which
also contains GLYD Ring Assembly (P/N 122769-1).
ITEM DESCRIPTION QTY. 2620 &
2620-15 A2620 2620-PT & 2620-PT-15 A2620-PT
1Split Ring 1 102147 102147 102147 102147
2Retaining Ring 1 501514 501514 501514 501514
3Retaining Sleeve 1 102148 102148 102148 102148
4Piston 1 125612*125612*125761** 125761**
5Cylinder Assembly 1 126152 126152 126152 126152
6Wiper Seal 1 507407 507407 507407 507407
7Wiper Housing 1 125610 125610 125610 125610
8Back-up Ring 2 501127 501127 501127 501127
9 O-ring 2 507412 507412 507412 507412
10 Polyseal 1 507408 507408 507408 507408
11 Front Gland 1 125609 125609 125609 125609
12 HUCK Sticker 1 590517 590517 590517 590517
13 GLYD Ring Assembly 1 122769-1 122769-1 122769-1 122769-1
14 CE & WARNING Sticker 1590512-5 590424-7400 590512-5 590424-7400
15 End Cap 1 125614 125614 125763 125763
16 Cover Plate 1 125617 125617 ------------ ------------
17 Retaining Ring 1 507406 507406 ------------ ------------
18 Locking Disc 1 122764 122764 122764 122764
19 Dump Valve 1 125616 125616 125616 125616
20 Strain Relief or Air Fitting 1 505344 503902 505344 503902
21 Trigger Switch Assembly 1 120361 119345-1 120361 119345-1
22 Ejector Gland Assembly 1 120653 120653 ------------ ------------
23 Ejector Washer 1 120652 120652 ------------ ------------
24 O-ring 2 500779 500779 ------------ ------------
25 Gland 1 122047 122047 ------------ ------------
26 Rod Wiper 1 122742 122742 ------------ ------------
27 Back-up Ring 1 501080 501080 ------------ ------------
28 Quad-Ring 1 501411 501411 ------------ ------------
29 Pintail Ejector 1 122705 122705 ------------ ------------
30 Barbed Retainer 1 ------------ ------------ 125765 125765
31 Screws 3 ------------ ------------ 500060 500060
32 Pintail Deector 1 ------------ ------------ 122766 122766
33 Wiper Seal 1 ------------ ------------ 505894 505894
34 Polyseal 1 ------------ ------------ 506160 506160
35 Spacer 1 ------------ ------------ 122762 122762
36 Retaining Ring 1 ------------ ------------ 506159 506159
37 Set Screw 1 501731 501731 501731 501731

17
2620 series Hydraulic Installation Tools (HK1012)
Assembly Drawing Electric Trigger
505839 Cable Tie
110439 Female Connector
502298 Reducing Bushing (2)
Hose Assembly (2)
(see Table)
Control Cord
(see Table)
110438 Male Connector
110686 Male
Cord Connector
Figure 12
Hose Assembly for Electric
Trigger Models

18
2620 series Hydraulic Installation Tools (HK1012)
Assembly Drawing Air Trigger
A2620-PT 120770 Hose Sleeve A2620 120770-2 Hose Sleeve
503902
Air Tube
Connector
112143-DASH
Air Hose
110439 Female Connector
502298 Reducing Bushing (2)
126107-2 Hose (2)
110438 Male Connector
113021 Air Fing
1
11
119440-3
Air Trigger & Hose Assembly
(includes 119345 Air Trigger
Assembly and items )
1
Figure 13
Hose Assembly for Air
Trigger Models

19
2620 series Hydraulic Installation Tools (HK1012)
Troubleshooting
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 hydraulic hose coupling.
2. Tool operates in reverse.
a. Reversed hydraulic hose connections between
POWERIG and tool.
3. Tool leaks hydraulic uid.
a. Defective or worn O-rings or loose hose
connections at tool.
4. Hydraulic couplers leak uid.
a. Damaged or worn O-rings in coupler body (P/N
110440).
5. Hydraulic uid overheats.
a. Hydraulic unit not operating properIy; see unit’s
manual.
b. Unit running in reverse (918 & 918-5 only). See unit’s
manual.
6. Tool operates erratically and fails to properly
install fastener.
a. Low or erratic hydraulic pressure supply; air in
system. See applicable instruction manual.
b. Damaged or excessively worn piston O-ring.
c. Excessive wear on or scoring of sliding surfaces
of tool parts.
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 accumulated in pull grooves of
jaw segments.
e. Excessive sheet gap.
8. Collar of fastener not completely swaged.
a. Improper tool operation. See Trouble 6.
b. Scored anvil in nose assembly.
9. Tool “hangs-up” on swaged collar of fastener.
a. Improper tool operation. See Trouble 6.
b. RETURN pressure too low.
c. Not enough collar lubricant.
d. Nose assembly not properly attached; see Nose
Assembly Data Sheet.
10. Pintail of fastener fails to break.
a. Improper tool operation. See Trouble 6.
b. Pull grooves on fastener stripped. See Trouble 7.
c. PULL pressure too low.
11. Nose will not release broken pintail.
a. Nose assembly incorrectly installed; see Nose
Assembly Data Sheet.
Always check the simplest possible cause (such as a loose or disconnected trigger line) of a malfunction rst. Then
proceed logically, eliminating other possible causes until the cause is discovered. Where possible, substitute known
good parts for suspected defective parts. Use this troubleshooting information to aid in locating and correcting
trouble.

20
2620 series Hydraulic Installation Tools (HK1012)
Kits &Accessories
KITS
service KiT
All models - 2620KIT
assembly Tool KiTs (Figures 3 and 6)
2620, 2620-15, a2620 - 123110-7
2620-PT, 2620-PT-15, a2620-PT - 123110-6
These kits contain one (1) each of:
p/n DescripTion
121694-2620 GLYD Ring Insertion Tool
123111-6 Piston Assembly Tool
123112-6 Spacer
ACCESSORIES
Ejector Gland Hex Key - 122048
(models 2620, 2620-15, A2620; Figure 4)
End Cap Hex Key - 126981
(all models; Figure 2)
Remote Trigger - 123381-24
(electric-trigger models)
Pintail Deector - 122766
(models 2620-PT, 2620-PT-15, A2620-PT)
Parker Threadmate®(4 oz. tube) - 508517
Slic-Tite®(stick) - 503237
Loctite®- 503657
Loctite®271 (5 ml tube) - 50365
Loctite®242 (50 ml bottle) - 505016
SUPER-O-LUBE®- 505476
LUBRIPLATE®130-AA - 502723
Huck has created product-specic Spare Parts Service Kits that contain various perishable parts. The types and
quantities of spare parts that should be available vary with the application and tools in use. Have the appropriate kit
accessible when using this tool and when performing maintenance on it.
Huck also recommends having the following Accessories available when preparing, using, and performing
maintenance on this tool.