6
6. Install handles to front of apron (Figure 4).
Figure 4
7. Install stop rod assembly on left side of brake,
through weldment on apron, as shown in Figure
5. Secure stop rod pin (F) with flat washer and
hex nut (HP3,HP9). Install cotter pin (HP10) at
end of stop rod, and bend with pliers to secure.
Figure 5
6.0
Adjustments
6.1
Counterweight position
Proper counterweight position determines amount
of leverage for the bend, and most efficient
movement of apron for the operator.
Adjust counterweight by backing out screw (J,
Figure 6) and rotating upper and lower collars (K) as
needed. When counterweight is at desired position,
turn screw (J) until it re-engages counterweight.
Figure 6
6.2
Apron adjustment
The apron assembly has been adjusted by the
manufacturer for use with material having the
capacity listed in the Specifications section. If any
misalignment occurs, correct as follows.
The forward edge of hold-down fingers should be
adjusted parallel to pivot edge of press bar. Release
clamping pressure on hold-down assembly by
pushing clamp handles (L) slightly to the rear. Turn
knobs (M) to adjust fingers for parallel.
Figure 7
The truss nuts (N, Figure 7) can be used to help
achieve alignment in apron and hold-down
assemblies, by eliminating any bowing at the center
of these assembles.
Finger alignment can be achieved by loosening cap
screws on the fingers, and raising apron to 90-
degree position. Push fingers forward against apron
bar for proper alignment. Retighten all screws.
6.3
Adjusting for metal thickness
The holddown assembly must be adjusted to allow
for clearance when making bends according to
thickness of material. Clearance for material within
four gauges of the capacity should be twice the
thickness of the material. For lighter gauges use 1-
1/2 times the thickness.
When adjusting for thickness, turn both knobs (M,
Figure 7) the same amount to maintain parallelism
of fingers with apron.
6.4
Adjusting clamping pressure
Clamping pressure should be adjusted according to
material thickness. Clamping pressure should be
great enough to hold material securely in place but
not so much that it is difficult to lock clamping
handles. Clamping pressure can be adjusted by
turning nuts on threaded rod portion of yoke
assembly (P, Figure 8).
6.5
Repeat bends
Adjust stop collar on stop rod (Figure 5) to limit
apron swing.
