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2 Operational safety Instruction manual SIPLACE SX1/SX2 Edition V2 and V3 2.9 Locking and attaching the warn ing labels From software versi on SC .713.1 Edition 12/2020 98  Alternatively: T ag out procedure If the place…

Instruction manual SIPLACE SX1/SX2 Edition V2 and V3 2 Operational safety

From software version SC.713.1 Edition 12/2020 2.9 Locking and attaching the warning labels

2.9 Locking and attaching the warning labels

2.9.1 Purpose and scope

Before performing any preventive maintenance work or service work to the placement machine,

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.

2.9.2 Description

Whenever it becomes necessary to isolate, control and release energy for the placement ma-

chine, the following procedure is to be followed.

 Notify affected employees.

 Switch off the placement machine and any auxiliary devices. Carry out all normal stopping

procedures:

– Press the stop button.

– Shut down the control computer.

– Switch the placement machine off at the main power switch.

 Isolate the placement machine 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).

PLEASE NOTE

Minimum requirements

These procedures represent the minimum lock/tag out requirements for the preventive

maintenance or service work on the placement machine. Any additional safeguards

needed to complete work safely can be specified by facilities supervision, the safety of-

ficer, the safety committee and the health department.

2 Operational safety Instruction manual SIPLACE SX1/SX2 Edition V2 and V3

2.9 Locking and attaching the warning labels From software version SC.713.1 Edition 12/2020

 Alternatively: Tag out procedure

If the placement machine can be locked out, it must be. However, there are situations where

it is not possible to attach a lock in order to isolate the energy. In these cases, the energy-

isolated placement machine must be tagged to warn employees that the placement machine

is isolated 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 placement machine, wait the specified discharge or pressure un-

loading time (see sections 2.7

, page 92, and 2.8, page 95), before the placement ma-

chine can be operated again without risk.

 Verify the lock out.

Testing the lock out for the placement machine can be done simply by pressing the start but-

ton.

 The following steps must be taken to restore the placement machine to operation:

 Check the area. Authorized employees should remove all of 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 placement

machine 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 placement machine on. Authorized workers should observe the equipment in

operation to insure repairs were done correctly.

2.9.3 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.

Instruction manual SIPLACE SX1/SX2 Edition V2 and V3 2 Operational safety

From software version SC.713.1 Edition 12/2020 2.9 Locking and attaching the warning labels

2.9.4 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 placement machine.

2.9.5 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

gravitational. 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 placement machines or equipment that is to be de-

energized. 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 cate-

gory. There employees include office personal, managers, and upper management. Al-

though they do not have a direct relationship to the machinery being locked or tagged,

they have to receive some training.