Specifications

5-4 EM-506 (N-07/03)
CONTROL ON-OFF keyswitch to “OFF” and
remove the key.
FIGURE 5-5 CLAMP/UNCLAMP Switch
12. Insert lower die on the filler block. Leave it extended
past end of bed several inches. Visually center filler
block so lower die is aligned with slot in the ram
nose.
13. Loosen all ram die clamps nuts about .125”
(3.2mm). If the machine is equipped with optional
Power Clamps for the upper die, use
CLAMP/UNCLAMP selector switch located on
main electrical enclosure (Figure 5-5) to open upper
die clamp. Turn the CONTROL ON-OFF keyswitch
to “ON”. Depress pushbutton while turning key to
the “UNCLAMP” position. A red light will indicate
the unclamped position.
14. Move ram as necessary so there is just enough space
for the upper die. Use palmbuttons to move ram
down or the RAM UP button to move ram up. Turn
the CONTROL ON-OFF keyswitch to “OFF” and
remove the key.
15. Rest the upper die on extended portion of lower die.
Make sure tongue of upper die is in the ram nose slot
and that the upper die is trapped by the lower die and
ram die slot. See Figure 5-6. Then slide upper die
into lengthwise position with the lower die. Slide the
set of dies into a centered position on the machine.
Tighten the filler block set screws or clamp the
lower power die clamp to lock the lower die.
Note: Short, lightweight dies may be installed as a
set and slid into position.
FIGURE 5-6 Die Positioning
16. Moderately tighten ram die clamp nuts or clamp
optional upper power clamp to prevent the upper die
from falling when the ram is raised. Turn
CONTROL ON-OFF keyswitch to “ON”.
17. Use the RAM UP button to raise the ram .125” to
.25” (3.2 to 6.4mm). Turn the CONTROL ON-OFF
keyswitch to “OFF” and remove key.
18. Visually align the upper and lower dies. Shift the
filler block front-to-back using die aligners to obtain
rough die alignment.
19. Turn CONTROL ON-OFF keyswitch to “ON”.
20. Inch the ram down using palmbuttons until the upper
die is seated. When seating dies, machine tonnage is
limited to 10% of the machine’s capacity. For
example, for a 350 ton (3114kN) PROFORM the
tonnage is limited to 35 tons (311kN).
IMPORTANT: When seating dies it may be advisable
to place wood blocks or soft metal between the dies
to prevent damage to the dies. Short dies must have
sufficient shoulder area to prevent sinking into the
ram, bed or filler block.
The hydraulic components and machine frame
members are safeguarded against overload by both
a pressure transducer and a relief valve in the
hydraulic circuit. However, care must be taken to
provide enough area under upper and lower dies to
prevent them from sinking into the ram nose or bed
top due to highly concentrated loads. This is the
shaded area shown in Figure 5-7. The minimum
area (sq. in.) for each die to prevent sinking may be
calculated by this formula:
Die Area = MAXIMUM TONNAGE / 15
An example for a 350 ton (3114kN) machine, the
minimum die area for a capacity load is 350