Instruction manual

ManualsBrandsAlcoa ManualsPower Tool2624HS

Huck-Spin® Series Tooling (HK1076) Alcoa Fastening Systems

All current variants of HS37 and HS52 Huck-

Spin Installation Tools are fitted with a type of

Limit Switch Assembly which includes an elec-

trical Printed Circuit Board (PCB). With this

type of Assembly, both Limit Switches 1 and 2

are permanently attached to the PCB at a fixed

distance apart.

OPERATION

The fitting of the Limit Switch Assembly onto

the Tool is shown on the tool assembly drawing.

When a Huck-Spin Bolt enters the rotating Nose

Assembly Thimble, the end of the Bolt comes

into contact with the Actuator Rod and Disc

Assembly that is pushed toward the rear of the

Tool. As the Disc moves, it allows the

Compression Spring in the Limit Switch

Assembly to move the Limit Switch Lever

toward the rear of the Tool. Lever movement

causes Limit Switch 1 to open (normally

closed).

Continued movement of the Lever causes Limit

Switch 2 to close (normally open). The Lever

has a Slot that is located over the rear Standoff

and is held in place by the Cover. Clearance

between the Cover and the shoulder of the rear

Standoff allows a sliding movement of the Lever

to take place.

When the Huck-Spin System is being used to

install Fasteners, signals from the Limit

Switches are used by the Controller to control

the function of the Tool. The signal from Limit

Switch 2 is used by the Controller to make the

Tool go into a full Collar Swage Cycle. Correct

adjustment of Limit Switch 2 is essential for

proper tool function. Incorrect adjustment will

result in malfunction and may cause insufficient

Collar Swage or failure to release the Tool from

the Bolt at the completion of the Installation

Cycle.

Adjustment of the Limit Switches is affected by

changing the angle of the Switch Arms on the

Limit Switch Lever.

CHECKING PROCEDURE:

1. Check that the Tool Piston is in the full for-

ward position. It will normally be in this

position unless there is an Hydraulic System

problem or the Powerig has been switched off

during a Fastener Installation Cycle. When

the piston is in the full forward position, the

front of the Nose Assembly Thimble will be

approx. 0.20-inch (5mm) inside of the

Swaging Anvil.

2. Ensure that the Air Supply is disconnected at

the Manifold and the Electrical Powerig Cord

is disconnected at the Powerig. Use suitable

warning flags to inform other people not to

reconnect those items.

3. For HUCK-SPIN systems that do not have

switch indicator lights built into the manifold,

plug the Limit Switch Light Box into the

electrical Socket on the side of the Manifold

Cover, (Note: Not required if Manifold is

equipped with integral Indicator Lights.)

4. Using the appropriate 123940-(xx) Gauge,

insert the ''

TOUCH-OFF'' side of the gauge into

the Thimble until it bottoms. In this position

only the Blue LS-1 lamp should be on, indi-

cating that Limit Switch 1 is open. (Note: The

"xx" in 123940-(xx) indicates fastener size;

for 1/2", xx = -16; for 20mm, xx = -M20,

etc.)

5. Insert the opposite, ''

TOUCH-ON'' end of the

123940-(xx) Gauge into the thimble until it

bottoms. In this position both the blue LS-1

lamp and the yellow LS-2 lamp should be on,

indicating that Limit Switch 1 is open and

Limit Switch 2 is closed.

continued

IMIT

WITCH

PERATION

& A

DJUSTMENT

WARNING: During checking and adjust-

ment of limit switches, it will be necessary

to insert the gauge into the nose assembly

thimble by hand. Therefore, the air supply

at the manifold and the electrical Powerig

cord at the Powerig should be disconnect-

ed to prevent possible personal injury.