Having problems with your Coleman Pressure Washer PW0881800 ?

Low pressure from Coleman pressure washer

\015 I have a Coleman 1800 PSI gas powered pressure washer which has low pressure. It's second hand to me and I don't have the manual. Is there a way to adjust the pressure on these units? I can see a valve which has a spring on it to adjust something on the pump head but not sure which way or how to increase the pump pressure\015

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Repair Help & Product Troubleshooting for Coleman Pressure Washer PW0881800

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