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G0646/G0647 50/65 Ton Ironworker
-33-
Adjusting Stroke
Length
The stroke length of the beam and attached tool-
ing is adjusted by moving the position of the limit
stops. The typical benefit of adjusting the stroke
length is to shorten the distance the tooling moves
away from the workpiece to decrease the amount
of cycle time needed between cuts.
Keep in mind that most tooling requires that the die
or punch passes entirely through the workpiece.
Turn the machine off, then use a 10mm wrench to
remove the hex bolts and the access panel to the
limit stop assembly. Become familiar with the dif
-
ferent parts of the assembly, as shown in Figure
42, and their descriptions listed below.
Figure 42. Limit stop assembly.
A
B
D
F
G
H
C
E
A. Beam Attachment: Moves the limit bar and
limit stops from side-to-side with the move
-
ment of the beam.
B. Limit Ring: Stops the limit stop from moving
past the maximum outbound setting.
The limit
ring is set at the factory and should not be
moved.
NOTICE
Damage to the machine, tooling, or stock
that is a result of incorrect settings made
to the limit stops will not be covered under
warranty. DO NOT change the factory set
-
tings of the limit rings.
C. Limit Bar: Moves with the beam and enables
the limit stops to engage the limit switches.
D. Limit Stop Set Screw: When loosened,
allows the limit stop to be re-positioned.
E. Limit Stop: Engages the limit switch as the
limit bar moves with the beam.
F. Punch Limit Switch: When engaged by the
left limit stop, reverses the beam movement
and lifts the punch up and away from the
punching station (in
Punch mode), or stops
the beam (in
Notch mode).
G. Notch Limit Switch: When activated by the
right limit stop, reverses the beam movement
and lifts the top die up and away from the
notching station (in
Notch mode), or stops
the beam (in
Punch mode).
H. Limit Bar Support Bracket: Provides sup
-
port for the limit bar as it moves from side to
side.
Tools Needed Qty
Hex Wrench 4mm ..............................................
1
Wrench 10mm ...................................................
1
To adjust the stroke length:
1. Turn the motor OFF, and press the emer-
gency stop button to prevent unexpected
movement of the beam.
2. Remove the limit stop assembly access panel
from the front of the machine.
adjusting stroke length