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1310 3012 08
1.9 Safety
valve
All adjustments or repairs are to be done by an authorized representative of the valve supplier.
Following checks must be carried out:
1
A check of the opening of the lifting gear,1 or 2 times a year. This can be done by lifting the ring or lever.
2
A check of the set pressure once a year according to the local regulations, if required. This check may not be done with the
compressor supplying the air pressure and must be carried out on a proper test bench.
1.10 Injury Prevention
1
Stationary housing guards are provided on all rotating or reciprocating parts not otherwise protected and which may be
hazardous to personnel. Machinery shall never be put into operation, when such guards have been removed, operate only
when guards are securely reinstalled.
2
Do not open electrical cabinets, cubicles or other equipment while voltage is supplied. If such cannot be avoided, e.g. for
measurements, tests or adjustments, have the action carried out by a
qualified electrician only, with appropriate tools, and ascertain that the required bodily protection against electrical hazards is
applied.
3
Noise, even at reasonable levels, can cause irritation and disturbance which, over a long period of time, may cause
severe injuries to the nervous system of human beings.
When the sound pressure level, at any point where personnel normally has to attend, is:
below 70 dB(A):
no action needs to be taken,
above 70 dB(A): noise-protective devices should be provided for people continuously being present in the room,
below 85 dB(A):
no action needs to be taken for occasional visitors staying a limited time only,
above 85 dB(A):
room to be classified as a noise-hazardous area and an obvious warning shall be placed permanently at
each entrance to alert people entering the room, for even relatively short times, about the need to wear ear
protectors,
above 95 dB(A):
the warning(s) at the entrance(s) shall be completed with the recommendation that also occasional visitors
shall wear ear protectors,
above 105 dB(A): special ear protectors that are adequate for this noise level and the spectral composition of the noise shall
be provided and a special warning to that effect shall be placed at each entrance.
4
Insulation or safety guards of parts the temperature of which can be in excess of 80 ºC (175 ºF) and which may be accidentally
touched by personnel shall not be removed before the parts have cooled to room temperature.
5
When hot parts have to be handled, e.g. shrink fitting, special heat-resistant gloves shall be used and, if required, other body
protection shall be applied.
6
If the working process produces fumes, dust or vibration hazards, etc., take the necessary steps to eliminate the risk of
personnel injury.
7
Before lifting machines, all loose parts which could be liable to fall down shall be removed or secured; pivoting parts such as
doors, etc. shall be safely immobilized.
8
To lift heavy parts, a hoist of ample capacity, tested and approved according to local safety regulations, shall be used.
9
When lifting machinery, only hooks or shackles meeting local safety regulations shall be applied. Never shall cables, chains or
ropes be applied directly on or through lifting eyes. Never allow sharp bends in lifting cables, chains or ropes.
10 Lifting hooks, eyes, shackles, etc. shall never be bent and shall only have stress in line with their design load axis. The
capacity of a lifting device diminishes when the lifting force is applied at an angle to its load axis.
11 For maximum safety and efficiency of the lifting apparatus all lifting members shall be applied as near to perpendicular as
possible. If required, a lifting beam shall be applied between hoist, and load.
12 When heavy parts are being lifted with a hoist, it is strictly forbidden to dwell or pass under the load or in the space which is
liable to be hit if the load or part of it should topple over or come loose. Never leave a load hanging on a hoist. Lifting
acceleration and retardation shall be kept within safe limits.
13 A hoist has to be installed in such a way that the object will be lifted perpendicular. If that is not possible, the necessary
precautions must be taken to prevent load-swinging, e.g. by using two hoists, each at approximately the same angle not
exceeding 30deg from the vertical.
14 When using compressed air or inert gas to clean down equipment, do so with caution and use the appropriate protection, at
least safety glasses, for the operator as well as for any bystander. Do not apply compressed air or inert gas to your skin or
direct an air or gas stream at people. Never use it to clean dirt from your clothes.
15 Before blowing compressed air or inert gas through a hose, ensure that the open end is held securely, so that it cannot whip
and cause injury.
16 When washing parts in or with a cleaning solvent, provide the required ventilation and use appropriate protection such as a
breathing filter, safety glasses, rubber apron and gloves, etc.
17 Safety shoes should be compulsory in any workshop and if there is a risk, however small, of failing objects, wearing of a safety
helmet should be included.
18 If there is a risk of inhaling hazardous gases, fumes or dust, the respiratory organs must be protected and, depending on the
nature of the hazard, so must the eyes and skin.
19. Remember that where there is visible dust, the finer, invisible particles will almost certainly be present too; but the fact that no
dust can be seen is not a reliable indication that dangerous, invisible dust is not present in the air.
20. When using cartridge type breathing filter equipment, ascertain that the correct type of cartridge is used and that its useful
service life is not surpassed.
