RISK ASSESSMEMT FOR OPERATORS OF SHRINK WRAPPING MACHINERY
The operator, before starting to work with the machine, must have acquired enough knowledge on the location and the functions of the controls, characteristics of the machine etc and must have read the use and maintenance manual in all its entirety.
It is anyway the duty of the operator, to scrupulously and completely adhere to both the prevention of accidents and safety regulations and general rules with regards to safety contained in the manual.
C.E. Conformity statement – The manufacturer takes exclusive responsibility that the machine conforms to the directives listed below and declares that the following standards have been applied EN291-1, EN292-2, EN60335-1, EN6024-1.
.No. 9837 EC (Directive on machines)
.No. 73/23 EEC (Directive on low tension)
.No. 80/1107 EEC, 83/477, 86/188, 88/642 with regards to workers’ protection against risks due to exposure to chemical, fisical and biological agents at the place of work.
.No. 90/394 EEC with regards to workers’ protection against risks due to exposure to cancerogenic agents at the place of work.
.No. 77/576 EEC and no. 79/640 on safety signals at place of work.
.No. 89/656 EEC and EEC and no. 89/686 with regards to the usage of individual protection gear.
.No. 89/336 EEC on materials of electromagnetic compatibility.
1) Burns to skin
2) Electric Shock
3) Physical contact injuries
4) General risks due to improper use
1) Burns to skin-
Do not touch sealing blade unless the machine has been switched off for more than an hour.
Do not place hands inside shrink tunnel
2) Electric Shock-
Do not remove any panels from the machine at any time.
Switch off at the wall if there is any visible damage to the plug or cable.
3) Physical Contact Injuries
Do not touch the moving conveyors.
Do not use the machine without the guards.
Do not reach inside Perspex guards.
Do not reach inside tunnel.
4) General Risks Due To Improper Use
Do not wrap products of less than 50 grammes
Do not wrap products of more than 15kg
Do not wrap products of more than 150mm in height
Do not wrap products smaller than the tunnel roller gaps.
Do not wrap liquids in fragile containers
Do not wrap wet products
Do not wrap inflammable products
Do not wrap explosive products
Do not wrap Aerosol products
Do not wrap volatile products
Do not wrap powders in fragile containers
PRECAUTIONS DURING ROUTINE MAINTENANCE
Before starting any maintenance operation, described in this chapter, unless otherwise required, switch the machine off, switch the voltage off, acting on the main switch and pull out the power supply cable from the mains.
Sealing blade cleaning and tunnel roller cleaning
Heat the blade, performing two or three idle sealing operations (with no film) in a quick succession.
After the third sealing, quickly clean the blade using a dry cloth or a ball of film, making sure not to touch any hot parts with your hands.Do not clean the blade using a metal object
While the rollers are still warm use a dry cloth to remove any film residue. Do not use sharp or abrasive items
Use exclusively a damp cloth to clean any pespex. Do not use any detergents or solvents, since these could damage its transparency.
Replacing the Teflon and the rubber
Replacing Teflon Tape
-Remove the worn Teflon Tape on a regular basis
-Apply the new adhesive Teflon strips in a linear and flat manner, making sure that where they meet the edges match.
-The rubber bases are long lasting and replacement method is obvious
Be extremely careful not to touch or make dirty the adhesive side of the Teflon strips during application.
Lubricate tunnel chains with high temp oil on a monthly basis
POLYOLEFIN SHRINK FILM
Polyolefin is a new heat-sealable shrink film. It excels in high shrink properties. This film has low shrunk force and is easy to seal. It resists tear initiation, has superior seal strength and high tear propagation resistance. Stays flexible at freezing temperatures. Available centre folded or single wound.
Fully recyclable, contains no contaminants, not harmful to environment.
Polyolefin should be sealed at the lowest possible temperature so as to eliminate fuming. Fumes are non-toxic, non acidic and there is generally no need for specific ventilation/ extraction measures.
It should be stored in a cool, dry environment. Maximum storage temperature: 25 C/77 F.
The above table is based on test data believed to be reliable. Since it is not possible to anticipate the different and varying conditions under which Polyolefin films may be used, however, purchasers are advised to carry