Instruction manual

Huck-Spin® Series Tooling (HK1076) Alcoa Fastening Systems
35
ADJUSTMENT
Normally it is only necessary to adjust the set-
ting of Limit Switch 2. However, when adjust-
ment is complete, always check Limit Switch 1
again and adjust that Switch if necessary.
TO ADJUST LIMIT SWITCH 2
1. Remove ONLY the TWO Retaining Screws
nearest the FRONT of the Tool from the
Limit Switch Cover.
2. Hold the Cover in position while removing
the third Retaining Screw.
3. Slowly lift and slide the Cover toward the
rear of the Tool until the Lever is exposed.
Holding the Lever in place, continue to slide
the Cover toward the rear of the Tool and
then upwards to remove it completely.
4. Carefully ease the Lever upwards from the
Switch Assembly making sure that the Spring
is restrained.
5. Make the necessary adjustment to the Limit
Switch Lever Arms. Hold the top section of
the Lever in a vice or Wide Nose Grips/Pliers
to ensure that only the Limit Switch Arms
bend as shown on the Drawing. Make only
small adjustments at a time.
REASSEMBLY
6. Insert either end of the Limit Switch Setting
Gauge into the front of the Nose Assembly to
push the Actuator Rod rearward. Hold the
Spring in place on its locator tab at the end of
the PCB. Place the Lever's locating tab into
the opposite end of the Spring. Push the
Lever forward and downward, compressing
the Spring, until it locates onto the rear
Standoff. Make sure that the long Lever 2
Arm is located IN FRONT of the Actuator
Disk. Remove the Gauge from the Nose
Assembly, releasing the Actuator Rod. The
Lever should be pushed forward against Limit
Switch 1 by the small Spring.
7. Holding the Lever in place, slide the Cover
over the PCB from the rear of the Tool
towards the front of the Tool. When the
Cover is correctly located on the three
Standoffs, it will hold the Lever in the correct
position.
8. Replace the three Screws that hold the Cover
in Place.
9. Re-check the Limit Switch operation as
before.
NOTE: Some Switch Covers may have a
small hole that exposes the Lever (Switch
Actuator Slide). This hole can ease installa-
tion of the Cover by placing a small screw-
driver or hex key through the hole in the
Cover and bearing it against the Lever while
sliding the Cover into position.
L
L
IMIT
IMIT
S
S
WITCH
WITCH
O
O
PERATION
PERATION
& A
& A
DJUSTMENT
DJUSTMENT
(
(
CONTINUED
CONTINUED
)
)
CAUTION: The limit switch cover retains
the limit switch lever in place against the
compression of a small spring. Give care
when removing the cover to avoid forcible
ejection of the lever and spring from their
normal working positions.