Safety during maintenance
General
• Do a Lockout/Tagout on the system—including the machine, high-pressure pump, and all
ancillary equipment—before you do any maintenance. (Electrical and pneumatic air).
• Be alert at all times when doing maintenance on the machine.
• Do not patch damaged hoses—replace them.
• High-pressure water can remain in the system for an extended time after shutting down the
water source. Always bleed-down system pressure before servicing any part of the system.
• Do not exceed specified pressure setting limits for pneumatic or hydraulic components.
Exceeding these limits may result in serious injury to personnel or damage to the equipment.
• Torque all fittings to the manufacturer’s torque specifications.
• Follow the manufacturer’s recommendations for maintaining the equipment, and use only
original manufacturer replacement parts.
• Follow the manufacturer’s system startup procedure to ensure safe operation.
• Use care when lifting equipment covers during operation.
High-pressure system safety
• Do not patch high-pressure tubing—replace it.
• Welding on high-pressure component or high-pressure tubing is forbidden.
• Do not step on or lean against high-pressure tubing. Doing so could cause leaks.
• Do not touch weep holes with your bare hands or try to stop water by plugging the holes.
• Only use high-pressure fittings, valves, and tubing that are rated for the pressure of your
equipment [4150 bar (60,000 psi) or 6000 bar (87,000 psi)], depending on your configuration].
• Do not exceed specified operating pressures for high-pressure water system components.
© 2021 Flow International Corp.
Retrieved from Flow KB on April 12, 2021 PST
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