156 Troubleshooting
Figure 8-6
Velocity fuse
Tailgate Unlocking Spontaneously
If the tailgate seems to unlock by itself when using the packer, the “power bleed” inside the valve
might not be working on the right side of the hydraulic cylinder.
To fix this problem:
1. Apply all safety measures to ensure safety around the vehicle at all times.
2. Ensure that the parking brake is applied.
3. Disengage the hydraulic pump and turn OFF the engine.
4. Install a pressure gauge on each port of the valve tailgate section (see Figure 8-7).
A T-connector is needed to connect each gauge to one of the ports.
Figure 8-7
Gauges #1 and #2
5. Disconnect the packer retract limit switch (see Figure 3-38).
6. Start the engine and engage the hydraulic pump.
7. Push the yellow button on the packer control station to move the packer and pressurize the
system.
Install #2 gauge
here
Install #1 gauge
here
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