HP Indigo press 3050, User Manual

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32 Chapter 3 Safety
ENWW
Inch-safe-service method
WARNING! Do not perform maintenance on rotating parts (such as drums) with a hand on a moving part
while the press is on slow roll (for example, pressing the
Inching button).
Health and safety regulations require that you use the inch-safe-service method. Use the
following procedure for maintenance procedures where the PIP, ITM, and impression
drums are required to rotate:
1 Press an Emergency Stop button to put the press into a safe state with the power on.
2 Perform the necessary procedure (for example, cleaning).
3 Press the Emergency Stop button to release the press. Press the Inching button to
inch the press. Immediately press an Emergency Stop button to put the press into a
safe state before continuing maintenance.
4 Continue inching the press, stopping the press (putting it into a safe state), and
servicing the press part until the job is complete.
Machine lockout procedure
Health and safety regulations require that you use the following lockout procedure before
performing maintenance procedures that do not require drum rotation.
Lockout means either locking an energy-isolating device (for example, a fuse box) to
prevent the activation of the press, or unplugging the press, with the plug under the
exclusive control of the person performing the service or maintenance.
Use the following lockout procedure whenever there is any risk of unexpected machinery
activation:
1 Disconnect the press from all sources of electrical power by using the Main Supply
Disconnect switch mounted on or near the machine.
2 Lock the isolator switch in the off position to avoid an unexpected startup or release of
electricity.
3 Turn off the Uninterruptable Power Supply.
Figure 3-7. Exit Inching button
Inching button