ABB IRB 460 Series, Product Manual, Page: 33 / 398

1.3.9 Safety risks related to pneumatic/hydraulic systems
General
Special safety regulations apply to pneumatic and hydraulic systems.
Note
All components that remain pressurized after separating the machine from the
power supply must be provided with clearly visible drain facilities and a warning
sign that indicates the need for pressure relief before adjustments or performing
any maintenance on the robot system.
Residual energy
Residual energy can be present in these systems. After shutdown, particular care
must be taken.
The pressure must be released in the complete pneumatic or hydraulic systems
before starting to repair them.
Work on hydraulic equipment may only be performed by persons with special
knowledge and experience of hydraulics.
All pipes, hoses, and connections have to be inspected regularly for leaks and
damage. Damage must be repaired immediately.
Splashed oil may cause injury or fire.
Safe design
Gravity may cause any parts or objects held by these systems to drop.
Dump valves should be used in case of emergency.
Shot bolts should be used to prevent tools, etc., from falling due to gravity.
Product manual - IRB 460 33
3HAC039842-001 Revision: P
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1 Safety
1.3.9 Safety risks related to pneumatic/hydraulic systems