Doosan DA40 - Liquid or gas under high pressure

SHOP MANUAL
GENERAL INSTRUCTIONS
Ch 0 page 26
Pipes etc may become damaged when working and liquid or gas
may burst out. Liquid or gas may also burst out when loosening
a connection. High pressure may remain in the system even if a
pump has stopped.
Gas containers for e.g. welding gases may explode if exposed to
rough handling e.g. when an oxygen tube drops on a hard floor.
Valves may be become damaged and gas leak out if a gas tube
falls.
Risks
• There are risks, for instance, when working with:
• Fuel system
• Power steering
• Trailing axle hoist
• Tipper
• Brake system
• Compressed air from the workshop compressed air system
may also be risky.
For risks in rubber repair, see “Splinters, flying objects”.
Dangerous - in what way?
• Spray can penetrate the skin and cause serious
tissue injury
• Eyes may sustain serious injury
• Many substances may cause poisoning
• Air and other gases blown into the rectum may cause
serious, sometimes fatal injuries
• Leak testing or test pressurizing with compressed air or
other gas may cause explosion
Protective measure
Do not work with pressure in the system unnecessarily.
First stop the pump and release remaining pressure carefully.
Use goggles. Gloves are also to be preferred.
Never use compressed air or other gas to blow dirt from
the clothes.
Use liquid for testing leaks (of e.g. oil cooler).
Protection against gas and liquid under pressure
• Use goggles and gloves
• Do not work with pressure in the system if not absolutely
necessary
• Be careful when handling compressed air
Liquid or gas under high pressure