Hydraulic Flow; Pneumatic Pressure; Pneumatic Flow; Hydraulic Pressure - Dukane VWA-4300 User Manual

Hydraulic Flow

There are no mechanical adjustments for the hydraulic
system. Hydraulic pressure is controlled by the
FORCE HOLD FORCE
and
file. A pressure transducer provides constant feedback
to ensure proper control. Figure 9- 4 identifies the trans-
ducer and control valves. Do not attempt to perform any
mechanical adjustments to the hydraulic system.

Pneumatic Pressure

Compressed air is used to raise and lower the front
safety door, provide vacuum part retention and actuate
any optional pneumatic clamping or ejection features.
As long as the air pressure is within the specified range
of 75 to 90 psi, the regulator should never require any
adjustment. If the pneumatically operated mechanisms
are operating too slowly, check that you do not have a
restriction upstream and that there is enough air flow
into the welder.

Pneumatic Flow

The front safety access door uses compressed air to raise
and lower the door. The flow rate of the air controls the
speed of the door. These are set at the factory for fast
enough operation yet slow enough to avoid slamming
the door into the stops. Excessive door speed can result
in damage. If they ever require adjustment, loosen the
locking rings and make small changes to the flow control.
Turn the locking rings back down to prevent changes in
the settings. The door flow control valves are identified
in Figure 9-5. They are also labeled on the top of the
distribution manifold.
Dukane Manual Part No. 403-592-00
Hydraulic Fluid Level
WELD
settings in the setup
Section 9 - Optimizing Performance
Hydraulic Valve
Controller
Proportional
Relief Valve
Valve
Body
Manifold
Hydraulic Control Valves and Transducer
Figure 9 - 4
Air Exhaust
Diffusers
Main
Pressure
Regulator
Gauge
Access Door
Flow Control
Valves
Pneumatic Flow Adjustment Valves
Figure 9 - 5

Hydraulic Pressure

Controller
Hydraulic
Pressure
Transducer
Pneumatic
Distribution
Manifold
Page 115