Emerson 2000IW Maintenance Manual page 107

• hold the Down Speed Control Valve and turn the retaining ring nut with pliers
6. Remove the Down Speed Control Valve from the welder.
5.5.6.2 Replacing the Down Speed Control Valve
1. Check both sides for the new Down Speed Control Valve: one side has an arrow.
2. Place the Down Speed Control Valve into the welder so the arrow points up and tilt the valve as
shown in Figure 5.18 Replacing the Pressure
3. Hold the valve against the nose cover; then install and tighten the retaining ring nut.
4. Connect the two air lines to the Down Speed Control Valve
Regulator).
WARNING
5. Connect the main air supply.
6. Close the left side cover. See
5.5.7 Main Support Assembly
This section covers removing and replacing the following components in the Main Support
Assembly:
• Converter-Booster-Horn Stack
• Trigger Guard
• Air Cylinder
• Dynamic Trigger Mechanism
• RF Contact Block
• Carriage Return Spring
• Upper Limit Switch (ULS)
• Trigger Switch (TRS)
• Linear Optical Encoder
NOTICE
1019567 REV. 03
General Warning
Make sure all air lines are securely connected. Failure to do this can
cause air pressure to disconnect an insecure air line when turning air
pressure on.
5.3 Opening and Removing the Left Side Cover (EDP
If you need to replace the RF Harness (EDP 100-241-086), the
column, or the Counterbalance spring (EDP 100-095-023), contact
your local Branson representative.
Regulator.
(Figure 5.18 Replacing the Pressure
100-032-338).
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