6
Unpacking
1. Remove the crate from around the machine.
2. Carefully clean all rust protected surfaces with
a mild solvent or kerosene and a soft rag. Do
not use lacquer thinner, paint thinner, or
gasoline. These will damage painted surfaces.
3. Coat all machined surfaces with a light coat of
oil to inhibit rust.
4. Remove the bolts holding the machine to the
skid.
5. Carefully move the machine to a well-lighted
area on a solid, level workbench, and secure
to the bench with lag screws or bolts.
6. Machine location must allow access to all
sides.
Assembly
The BP-1248H does not require assembly.
However, it is important to make sure that the
machine is level; otherwise the brake will not bend
properly.
Use a machinist’s level and shims if necessary.
Adjustments
The (#) in the text refers to the
Item Number
in the
Parts Breakdown
section.
The
apron
assembly has been adjusted at the
factory for use with material having the capacity as
listed in the Specifications section. During
shipment of this unit the machine may have come
out of alignment.
The forward edge of the
holddown fingers
(41-1,
41-2, 41-3) should be adjusted parallel to the pivot
edge of the clamp block. Release clamping
pressure on the
holddown assembly
(34) by
pushing the clamp handles (31, 32) slightly to the
rear. Turn the
hand knobs
(58) to adjust for
parallel.
The center of the
apron
can be adjusted by
tightening the
truss nut
on the apron assembly.
Finger alignment
can be achieved by loosening all
cap screws (38) and rotating the
apron
(1) to the
90-degree position. Push the
fingers
forward
against the
bending leaf
for proper alignment.
Tighten screws (38).
Operation
Adjusting for Metal Thickness
The
holddown assembly
(34) must be adjusted to
allow for clearance when making bends according
to the thickness of the 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. The forward
edge of the holddown fingers should be adjusted
parallel to the pivot edge of the clamp block.
Release clamping pressure on the holddown
assembly by pushing clamp handles (31, 32)
slightly to the rear. Turn the hex cap screws (58)
to adjust for parallel and proper clearance. The
center of the holddown can be adjusted by
tightening the
truss nut
on the
holddown assembly
(34).
Adjusting the Clamping Pressure
The clamping pressure should be adjusted
according to the thickness of the material. The
clamping pressure should be great enough to hold
the material securely in place but not so much that
it is difficult to lock the
clamping handles
(31, 32).
Clamping pressure can be adjusted by turning the
nuts (55) on the threaded rod portion of the
yoke
assembly
(29, 30).
Flange Capacity
The recommended minimum flange capacity is one
inch.
Repeat Bends
Adjust the
stop collar
(48) on the
stop rod
(21) to
limit the swing of the
apron
assembly.
Counter Weight
The
counter weight
(17) can be moved up or down
to provide more or less leverage.
Lubrication
The machine must be lubricated every day of
service with a few drops of oil. Oil pinholes are
located at both yoke assemblies (29, 30) and the
apron assembly (1) near the
hinge pin
(11). Lightly
oil the machined parts when not in use to prevent
rust.
