Setup And Operation - Greenlee 746A Manuel D'utilisation

Setup and Operation

Punching
1. Remove the dust caps from the couplers; attach
the hose to the ram and to the pump. Thread the
couplers together. (Not applicable to 746A/767)
Note: Hand-tighten the couplers completely until all
threads are engaged. Do not use tools.
2. Refer to the hydraulic punch instruction manual
for proper punch, die, and drawstud selection
and setup.
3. Select the appropriate punch, die, and drawstud for
the desired hole size.
4. Determine and mark the exact location for the hole.
Use a Greenlee Kwik-Stepper
hole slightly larger than the drawstud being used.
5. Actuate the release valve to fully extend the ram by
turning pressure valve on 767 counterclockwise or
depressing pressure valve on 1725.
6. Thread the appropriate drawstud completely into
the ram in the punching head.
7. Slide the corresponding die onto the drawstud.
The open end of the die should face away from the
punching head.
8. Insert the drawstud through the pilot hole in the
material being punched.
9. Thread the punch (cutting edge facing the material)
onto the drawstud until the punch assembly is tight
on the material surface.
Note:
• All of the punch threads must be engaged with
the drawstud threads. If any punch threads are
not engaged, reassemble the setup.
• For SPEED PUNCH
drawstud (cutting edge facing the material) and
secure the SPEED LOCK to the drawstud.
10. Close pressure valve on 767 pump by turning
clockwise until snug. (Not applicable to 1725)
Greenlee Tools, Inc.
step bit to drill a pilot
®
, slide the punch onto the
®
Hydraulic Knockout Drivers
11. Pump until punch completes hole. Support the
weight of the ram when operating the pump. This
will prevent the ram from falling when the punch is
complete.
Note: if the ram stops before the hole is complete,
stop pumping. Check that the setup is correct and
that you have not exceeded the tool's capacity. Refer
to the setup instructions. Make sure die, material, and
punch are snug.
12. Release the pressure at the pump by turning pressure
valve on 767 counterclockwise or depressing
pressure valve on 1725 until piston in ram is at its
forwardmost position.
13. Unscrew the punch from the drawstud. Slide the
die off the drawstud and remove any slugs from the
die.Note: For SPEED PUNCH
LOCK. Slide the punch off the drawstud; then slide
the die off the drawstud and remove any slugs from
the die.
8
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
, remove the SPEED
®