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VARVEL
IUM
MAINTENANCE SCHEMES
VARIATORS SERIES VR
Friction ring replacement
Friction ring replacement of variators VR VARVEL-ATEX must be carried out by appointed Service Centres .
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Unscrew the nuts (44) and remove the motor
•
Unscrew the screws (01) and remove motor flange (02)
•
Unscrew the screws (03) and remove the seal plate (04) and the bellows seal (40)
•
Unscrew the screws (13) and turn the hand wheel together with the shaft until the full disengagement is achieved
•
Unscrew the screws (18) and pull off the slides (10) to disengage the cone (07) with its support (39) and bearings
(05)
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Pull off the driving flange (34)
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Push outwards the used friction ring (35) from its seat, same as shown in Fig. 2
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Certainly, the hits will damage the friction ring to remove and therefore clean carefully the seat before fitting the new
friction ring
•
Fit the new friction ring according to Fig. 3: the fit assembling needs accurate centred pressure and parallel
adjustment
•
Re-assembling of the variator classified ATEX provides for Loctite 281 sealing of screws (01), (03), (13) and sealing
checking with air pressure test (40 mbar for 40 seconds)
Correspondence among Materials, Dangerous Zones and Categories (according to Directive 94/9/CE)
Products VARVEL-ATEX to not supply
MATERIALS
DANGEROUS ZONES
CATEGORIES
Zone 0
1G
Zone 1
1G
2G
Gases, Vapours or Clouds
Zone 2
1G
2G
3G
Zone 20
1D
Zone 21
1D
2D
Dusts
Zone 22
1D
2D
3D
ACNH B.V.
http://www.wentellagers.nl
