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Manuale di montaggio, uso, manutenzione, immagazzinamento

IST-01 ing Rollers
ASSEMBLY, USER, MAINTENANCE
AND STORE MANUAL
ROLLERS FOR CONVEYOR BELTS
Summary of conformity data according to ATEX rules (94/9/CE) Rulli Rulmeca Spa – 24011 Almè (BG) – Italia – Via A. Toscanini,1
Tel: +39-035.4300111 Fax:+39-035.545523 e.mail: rulmeca@rulmeca.it Web: www.rulmeca.it
ASSEMBLY, USER, MAINTENANCE
AND STORE MANUAL
ROLLERS for conveyor belts
CONFORMITY DATA SUMMARY

Rulli Rulmeca series PSV

with flat steel tube, or with vulcanised rubber coating,
or with impact and return rubber rings.

component according to ATEX (94/9/CE), to be assembled to build CE certified equipments type: Group I category M2

Group II category 2G

Group II category 2D – high protection for dusts
Group II category 3G

Group II category 3D
Suitable to be inserted in belt conveyor systems for the handling of materials, built to operate in explosion hazard areas classified as Z1, Z2, Z21, Z22.

Attention!
This component cannot be installed in areas classified as Z0 o
Z20, or on equipments to be certified CE Ex I M1 or
CE Ex II 1, namely with a very high protection from
explosion hazard.

Rulli Rulmeca Spa – 24011 Almè (BG) – Italia – Via A. Toscanini,1
Tel: +39-035.4300111 Fax:+39-035.545523 e.mail: rulmeca@rulmeca.it Web: www.rulmeca.it
ASSEMBLY, USER, MAINTENANCE
AND STORE MANUAL
ROLLERS for conveyor belts
APPLICATION USAGE

these are rollers with special characteristics specifically for conveyor belts operating in very
hard environmental conditions, where huge volumes and sizes of materials are involved.
At the same time, thanks to their design characteristics, they require minimum maintenance.
Usual fields of application are: mines, quarries, cement works, coal power works and ports.
PSV rollers are lubricated for life with a large quantity of water repellent lithium grease,
which guarantees the correct lubrication during all the roller.
Working temperature range with standard components and grease: – 20°C and + 100°C.
It is possible to reach temperatures over this range by using special grease, bearings and
sealing.
Attention!
In case of installation in areas classified for the presence of inflammable
substances to be transported, it is recommended to use PSV return rollers
equipped with proper rubber rings (except in long conveyors using the
return belt reversed or in Pipe Conveyors).

3) ASSEMBLY

INSTRUCTIONS
ROLLERS ASSEMBLY - Install the rollers in the transoms and check that there is no more than 1 or 2 mm free axial play between the supports. In case, close the supports by a hammer or other system in order to have that little roller play. - Also check the Ch dimension of the roller milled slots is according to the support groove, with max 1 mm difference, in order to avoid roller shaft rotation in the support after some working time and the relative wear. - No special equipments, tools and controls are necessary during rollers assembly. Rulli Rulmeca Spa – 24011 Almè (BG) – Italia – Via A. Toscanini,1
Tel: +39-035.4300111 Fax:+39-035.545523 e.mail: rulmeca@rulmeca.it Web: www.rulmeca.it
ASSEMBLY, USER, MAINTENANCE
AND STORE MANUAL
ROLLERS for conveyor belts
USER INSTRUCTIONS
There are no special instructions, alarms or ways to operate with Rulmeca rollers and transoms. Follow the normal rules as per all the conveyor operation recommendations considering the specification and load capacity limits reported in our catalogues. Attention!
Avoid using rollers for a long time in defective conditions, namely when
worn out, blocked, broken or in critical mechanical conditions. For that, it is
necessary to foresee periodical inspections of each working roller by
experienced maintenance personnel, detecting possible defects and rapidly
replacing the damaged components.

5) MAINTENANCE

Rulmeca rollers are greased for life in factory with long lasting water repellent lithium
grease; no need of periodical maintenance, greasing, or lubrication charts system.
- Check monthly the idlers and rollers for possible breakdowns or conveyor problems.
The possible defects can be caused by:
• falling of material or stones between rollers and brackets which might cause early • blocking of bearing and seals of the roller due to pollution, water, sand or • built up of material around the rollers, in contact with the belt, overall in the return rollers. This fact can cause belt misalignment and out of tracking. Pay attention also to possible built-up of product under the return roller stations. In these both cases install or improve the belt cleaners. • excessive wearing of the roller shell that can produce holes and sharp edges on the - The remedy to these breakdowns is to replace the faulty rollers as soon as possible, before they can damage the belt or the conveyor system. If the quantity of faulty rollers, most of all if return rollers, is high, as described above, install or improve the belt cleaning system. - Possible bent supports that don't firmly keep the rollers, must be re-adjusted, reinforced or replaced. Rulli Rulmeca Spa – 24011 Almè (BG) – Italia – Via A. Toscanini,1
Tel: +39-035.4300111 Fax:+39-035.545523 e.mail: rulmeca@rulmeca.it Web: www.rulmeca.it
ASSEMBLY, USER, MAINTENANCE
AND STORE MANUAL
ROLLERS for conveyor belts
STORE INSTRUCTIONS

- Rollers, during the time before they are assembled in a new conveyor or for their
conservation as spare parts for working conveyors, must be stored in a closed dry room or at
least covered under a roof area, with enough circulation of air in order to avoid wet
condensation or direct rain that can provoke oxidation.
- In case of long storing time, check that the boxes or envelops of products are covered on
the top but that air circulation is guaranteed on the side and bottom of them
- In case the rollers start to get rusty, open the cases and envelops and treat the rollers by
waxed protection liquid as Tectyl oil, type 100 or the similar Metaltyl 7.
7)
INSTRUCTIONS FOR PROTECTION AGAINST EXPLOSION HAZARD
Maximum surface temperatures Rollers always have to work in the temperature conditions foreseen by the manufacturer (see par. 2). Rollers normally don't produce important over-temperatures in comparison with the environment where they work. The materials they are made with, don't allow to form up inflammable substances to a limit of 220 °C temperature. In case you work in the presence of inflammable dusts, roller surfaces in contact with the external environment never have to reach temperatures that can light mixes of dusts which the materials to be handled can produce. Attention!

It is a good rule to always check the ignition temperature of the conveyed
material, in the relevant safety sheet at Customer's disposal.
Protection against mechanical dangers Avoid as much as possible anomalous direct contacts between the metal surfaces of the roller and the materials handled. Preventing the ignition Rollers are totally made of metal and are conductors, therefore they are produced antistatic and allow, even when moving, the discharging of possible electrostatic charges from the rollers surface to the supporting transoms. Rulli Rulmeca Spa – 24011 Almè (BG) – Italia – Via A. Toscanini,1
Tel: +39-035.4300111 Fax:+39-035.545523 e.mail: rulmeca@rulmeca.it Web: www.rulmeca.it
ASSEMBLY, USER, MAINTENANCE
AND STORE MANUAL
ROLLERS for conveyor belts
Attention!
Check that the metallic structure to which rollers and transoms are mechanically fixed, is always electrically connected to the ground, in order to discharge eventual static electricity to earth, avoiding sparks. Prevention and/or limitation of dust accumulation In case you work in the presence of inflammable dust, always foresee systems to reduce the emission of dusts like: - spraying of the conveyed dusty material, - use of covers of the carrying loaded belt, - use of pipe conveyor, - use of cleaners at the discharge point, - periodical actions to clean the roller conveyor, in order to prevent the production and the accumulation of dust on the exposed surfaces of rollers and transoms. Information and specs on the possible use of tools No use of tools is foreseen: neither to assemble nor to disassemble the rollers from the conveyor, nor to internally disassemble the rollers as they are lubricated for life and they don't need any maintenance. Rulli Rulmeca Spa – 24011 Almè (BG) – Italia – Via A. Toscanini,1
Tel: +39-035.4300111 Fax:+39-035.545523 e.mail: rulmeca@rulmeca.it Web: www.rulmeca.it

Source: http://www.rulmeca.fi/download/IST_01_ingRollersRev01.pdf

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