Operation & Service Manual (VA) 30 ST1175
3.5.1 Lock-out / tag-out procedure
1. Notification.
Notify all affected employees that service or maintenance is required on the
machine and that the machine must be shut down and locked out to for service or
maintenance.
2. Preparation for shutdown.
The machine may only be turned off by an authorized employee. Before turning it
off, the employee must know:
- The type and magnitude of the energy,
- The hazards of the energy to be controlled,
- The method or means to control the energy.
3. Shutdown.
If the machine is in operation, shut it down by the normal shut down procedure.
Refer to section Switch off.
4. Machine isolation.
Isolate the machine from the energy source(s). The machine uses the following
energy sources:
- AC power.
This is de-energized by removing the AC connection to the machine.
5. Lock-out (or tag-out) device application.
Lock out the energy isolating device(s) with:
- an individual lock(s),
- place a warning device on the main switch.
6. Remove residual or stored energy.
Stored or residual energy (such as that in capacitors, air pressure, etc.) must be
dissipated or restrained by methods such as grounding, bleeding down, etc.
7. Verification of isolation.
Make sure that the vehicle lift is disconnected from the energy source(s).
First make sure that no persons are in or on the machine. Test to verify the
isolation of the machine. Make certain that the machine will not operate (power
cannot be turned on).
Return all operating control(s) to the OFF position after verifying the isolation of
the machine.
The machine is now locked out.
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