00198654-01_UM_Nozzle_Cleaning_Station_EN.pdf - 第20页
2 Operational safety 2.8 Locking and attaching the warning labels 20 User Manual SIPLACE Nozzle Cleaning Station 09/2019 2.8 Locking and attaching the warning labels 2.8.1 Purpose and scope Before performing any preventi…
2 Operational safety
2.6 Disabling the compressed air supply and discharging the pressure
User Manual SIPLACE Nozzle Cleaning Station 09/2019 19
2.6 Disabling the compressed air supply and discharging the
pressure
CAUTION
Risk of injury from compressed air!
Risk of injury when disconnecting the compressed air lines.
► Never disconnect compressed air lines while they are still pressurized.
Fig.6: NCS - compressed air unit
1 Location of the compressed air unit 2 Compressed air connection
3 Stop valve in the "CLOSED" position 4 Compressed air supply
5 Compressed air supply for cleaning 6 Compressed air filter
7 Manometer for the nozzle cleaning station supply pressure
Target pressure: 0.50 ± 0.01MPa, 5.0 ± 0.1bar (display range 0–1.0MPa, 0–10bar)
The compressed air working pressure of the nozzle cleaning station is set to 0.51 ± 0.01 MPa (5.1
± 0.1bar). The position of the compressed air unit is shown below. The supply of compressed air to
the nozzle cleaning station can be interrupted with the shutoff valve(3).
► Turn the lever of the shutoff valve(3) to the right.
► Monitor the operating pressure manometer(5). When the nozzle cleaning station switched off,
the pressure discharges to 0MPa (0bar) within 1minute.
2.7 Safety instructions on hazardous materials
CAUTION
Observe the safety data sheets
Observe the applicable safety data sheet, when handling hazardous materials (e. g. Vigon
SC or KG15+).
2 Operational safety
2.8 Locking and attaching the warning labels
20 User Manual SIPLACE Nozzle Cleaning Station 09/2019
2.8 Locking and attaching the warning labels
2.8.1 Purpose and scope
Before performing any preventive maintenance work or service work to the nozzle cleaning station,
a procedure of locking and tagging must be followed. The following procedure, when followed cor-
rectly, eliminates the possibility of an employee being injured by electrical shock in connection with
unexpected movement.
NOTICE
Minimum requirements
These procedures represent the minimum lock/tag out requirements for the preventive
maintenance or service work on the nozzle cleaning station. Any additional safeguards
needed to complete work safely can be specified by facilities supervision, the safety officer,
the safety committee and the health department.
2.8.2 Description
Whenever it becomes necessary to isolate, control and release energy for the nozzle cleaning sta-
tion, the following procedure is to be followed.
► Notify affected employees.
► Isolate the nozzle cleaning station from all its energy sources:
– Shut off the compressed air supply.
– Shut off the main power supply.
► Lock out the machine.
– Attach a lock whenever possible (e.g. to the main switch).
► Alternatively: tag out procedure
If the nozzle cleaning station can be locked out, it must be. However, there are situations
where energy isolating devices cannot accommodate locks. In these cases, the energy isolat-
ing devices must be tagged to warn employees that the nozzle cleaning station is de-ener-
gized for servicing. The tag must be securely fastened, it must be placed in a position visible
to all and it may only be removed by the person who attached it.
► Release stored energy
Stored energy in the compressed air supply or electrical energy in electrolytic capacitors must
be released by appropriate means.
– After switching off the nozzle cleaning station, wait the specified discharge or pressure un-
loading time before the nozzle cleaning station can be operated again without risk.
► Verify the lock out.
Testing the lock out for the nozzle cleaning station can be done simply by pressing the start
button.
► The following steps must be taken to restore the nozzle cleaning station to operation:
– Check the area. Authorized employees should remove all their tools and reinstall all
guards.
– Notify all affected employees.
– Before removing even one lock or tag, inform all workers in the area that the nozzle clean-
ing station is going to be restarted.
– Remove locks/tags
– Each authorized employee must remove his or her own lock. Each authorized employee
will have his or her own lock.
– Turn the nozzle cleaning station on. Authorized workers should observe the equipment in
operation to insure repairs were done correctly.
2 Operational safety
2.8 Locking and attaching the warning labels
User Manual SIPLACE Nozzle Cleaning Station 09/2019 21
2.8.3 Testing
Service personnel may test the circuits by activating them briefly without canceling the locking
method. This may be done only when no other work is being performed by any other person on the
equipment being tested. It is extremely important that all remote start switches be tagged with the
Do Not Operate tag to prevent inadvertent operation of the equipment during these periods.
2.8.4 Responsibility and obligations
●
It shall be the responsibility of the maintenance and service personnel to make sure this pro-
cedure is adhered to.
●
It shall be the responsibility of the maintenance and service personnel’s immediate supervisor
to instruct his personnel on this procedure.
●
It shall be the responsibility of the safety officer to manage the procedure for lockout and tag-
ging the nozzle cleaning station.
2.8.5 Training
●
The safety regulations require training for every individual. Of course, not every employee is
exposed to the same degree of danger or is involved with LO/TO as others are. So extensive
training is not necessary for everyone.
●
To determine how much training to provide for each worker, the employees are divided into
three groups. Each group has its own level of training:
– Authorized employees
These workers actually install the locks and tags and do the preventive maintenance or
service work. So they must know the most about controlled energy. First, they must be
able to recognize all energy sources and measure the amount of energy. Authorized em-
ployees must look for energy sources out of the realm of the obvious. These energy
sources include electrical, mechanical, hydraulic, pneumatic, chemical, thermal and gravit-
ational. Once these workers can recognize all energy sources they must be taught how to
isolate, control, and release the energy without any risk.
– Affected employees
These are workers who operate the nozzle cleaning stations or equipment that may be
deenergized. Other employees who may be affected include those who work in an area
that contain equipment that may be locked/tagged out. These employees have to be in-
structed about the nature of the energy control program. They must know why lock/tag out
is important, what tags and locks look like and why they must not remove tags or locks.
– All others
As the name implies, any employee who is not affected or authorized fits into this category.
There employees include office personal, managers, and upper management. Although
they do not have a direct relationship to the machinery being locked or tagged, they have
to receive some training.