Pneumatic Safety - Dukane VWA-4300 User Manual

Linear Vibration Welder 4000 Series, Model VWA User's Manual
Never operate the vibration
welder with the electrical
service door open. This is
an unsafe practice and can
result in injury or death.

Pneumatic Safety

Always isolate and lock out the compressed air before
performing any maintenance on the vibration welder. The
isolation and lockout device is shown in Figure 2-5. The
safety isolation device is installed externally, and is in series
with the internal compressed air filter. When activated, this
device will isolate the compressed air supply from the air
filter and pneumatic actuators in the welder. This device
complies with OSHA regulations.
Compressed air can develop a considerable amount of force.
The force is large enough to inflict serious injury. The vi-
bration welder uses two air cylinders which convert the air
pressure to mechanical movement for opening and closing
the front access door.
With the rear service doors open, you can see the com-
pressed air filter and pressure regulator on the left side.
This is shown in Figure 2-6. The filtered air is fed to the
air distribution manifold and pneumatic valves. Refer to
Section 11 - Maintenance for information on the filter
element and how to replace it.
Page 12
WARNING
Handle–Style AC Power Disconnect
Figure 2- 4
with Lockout and Tag
Exterior Pneumatic Lockout Device with
Figure 2-5
Lockout and Tag
Dukane Manual Part No. 403-592-00