Graco 17C489 Manual De Usuario

4.

Tap piston rod out of cylinder with a 

hammer or flip over and tap piston rod 

out against a bench.

5.

Unscrew piston valve from piston rod.

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Do not clean or wipe the piston valve 

threads. Cleaning the piston valve 

threads could destroy the special sealing 

patch and cause the piston valve to come 

loose during operation, causing a pump 

burst and possible serious bodily injury.

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