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2 Operational safety User Manual SIPLACE CS 2.9 Lock o ut and tag out procedur e Software Version SR. 408.xx03/2006 US Edition 56 Æ Reliev e store d energy S tor ed energy in the co mpress ed air s upply or el ectric al …

User Manual SIPLACE CS 2 Operational safety

Software Version SR.408.xx 03/2006 US Edition 2.9 Lock out and tag out procedure

2.9 Lock out and tag out procedure

2.9.1 Purpose and scope

Before performing any preventive maintenance work or service work, a procedure of locking and

tagging must be followed. The procedure, when followed correctly eliminates the possibility of an

employee being injured.

NOTE:

These procedures represent the minimum lock/tag out requirements for maintenance and servic-

ing work. 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

2.9.2 Description

Whenever it becomes necessary to isolate, control and release energy, the following procedure

is to be followed

Æ Notify affected employees.

Æ Shut down the equipment. Carry out all normal stopping procedures:

– Press the stop button.

– Shut down the station computer.

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

Æ Isolate the machine from all its energy sources:

– Shut off the compressed air supply

– Shut off the main power supply

Æ Lock out the machine.

– Apply the lock and the lockout whenever possible.

–

The tag out alternative:

If a machine can be locked out, it must be. However, there are situations where energy

isolating devices cannot accommodate locks. In these cases, the energy isolating devices

must be tagged to warn employees that the machine is de-energized 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.

2 Operational safety User Manual SIPLACE CS

2.9 Lock out and tag out procedure Software Version SR.408.xx03/2006 US Edition

Æ Relieve stored energy Stored energy in the compressed air supply or electrical energy in elec-

trolytic capacitors must be released by appropriate means.

– After switching off the placement machine wait until the voltages and the compressed air

have discharged to be able work without any risk (see sections 2.6

and 2.7.

Æ Verify the lock out.

– Testing the lock out can be done simply by pressing the start button.

Æ The following steps must be taken to restore the machine to operation.

Æ Check the area. Authorized employees should remove all of their tools and reinstall all guards.

Æ Notify all affected employees. Before removing even one lock or tag, inform all workers in the

area that the machine is going to be restarted.

Æ Remove locks/tags Each authorized employee must remove his or her own lock. Each autho-

rized employee will have his or her own lock.

Æ Turn the machine on. Authorized workers should observe the equipment in operation to insure

repairs were done correctly.

2.9.3 Testing

The maintenance or electrical person may test the circuits by energizing the circuit for a short

period of time without voiding the lock out procedure provided. 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.

User Manual SIPLACE CS 2 Operational safety

Software Version SR.408.xx 03/2006 US Edition 2.9 Lock out and tag out procedure

2.9.4 Responsibilities

It shall be the responsibility of the maintenance and electrical personnel to make sure this proce-

dure is adhered to.

It shall be the responsibility of the maintenance and electrical personnel’s immediate supervisor

to instruct his personnel on this procedure.

It shall be the responsibility of the Safety Officer with assistance from the Safety Committee,

Health Service Department, and the various managers and Vice-presidents to administer the Lock

Out / Tag Out Procedure.

2.9.5 Training

– Employee training

The safety regulations require training for every individual, of course every employee is not ex-

posed to the same degree of danger or is involved with Lock Out/Tag Out 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 recog-

nize all energy sources and measure the amount of energy. Authorized employees 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 machinery or equipment that may 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 instructed about the nature of the en-

ergy 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.