Ingersoll Rand BMDLN Série Manuel D'utilisation page 5

WARNING
Certain operations outlined in this section are very dangerous
and could injure people if performed by unskilled personnel.
Maintenance
• The Balancer's design is such that it is maintenance-free for its
entire work life. But if it is used under particularly harsh conditions
and requires any Maintenance, ensure that the spring-drum group
(13) is unloaded before disassembling the Balancer.
• The spring is a dangerous component. It is housed inside the
drum (13) that is lubricated for life. The spring-drum spare part
(13) is supplied complete: do not remove the spring for any reason
whatsoever.
WARNING
Do not disassemble the spring group as this is a dangerous
operation.
Replacing the cable
• Discharge the drum spring.
• Remove the stop ring 11 and the washer 12.
• Hold bush 6 in place, using a 30-mm wrench, widen the spring 9
and lift the spring and the bush and then remove the plate 4.
• Remove screws ABC and loosen screw D by a few millimeters,
raise flange E and replace the cable (15). Refit and tighten screws
ABC and D.
Reassembly
• Repeat the foregoing operations in reverse order.
WARNING
Before you position the drum into the cover, check that the slot
of cam 5 has been inserted into the matching pawl of lever 8 and
that spring 7 is in place. For model Series BMDLLN pay attention
to the position of the centrifugal masses X.
WARNING
In order to insert the drum into the cover, the cable must pass
through the specific notch G in the flange F.
WARNING
After having inserted the bush 6 into the plate 4, insert it into
the drum 13 by coupling the spring and then place everything
inside the cover.
Hold bush 6 in place using a 30-mm wrench, widen the spring
9 and then move down the bush 6 until it has entered the drum
completely.
The use of other than Ingersoll Rand replacement parts may result in safety hazards, decreased performance and increased
maintenance, and may invalidate all warranties. Repairs should be made only by authorized trained personnel. Consult your nearest
Ingersoll Rand Authorized Service Centre.
When the life of the Balancer has expired, it should be returned to the nearest authorized Ingersoll Rand Service Center for
dismantling and recycling.
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This part of the manual is intended for maintenance personnel ONLY.
NOTICE
If the greater diameter of bush 6 does not lower until it touches
plate 4, this means that bush 6 has not entered the drum's
support: stretch open spring 9 and oscillate the bush 6 until it is
completely inserted.
Finish the assembly by inserting Washer 12 and Ring 11.
Drum spring Breakage
• If the Balancer is locked, check that the drum's spring is not
completely discharged (this condition would trigger a locking as if
the spring were broken); if you are unable to charge the Balancer
complying with the procedure outlined in paragraph "Adjusting
the Balancer", this means that the drum's spring is probably
broken.
Before carrying out any type of check, make sure the spring is
discharged in actual fact.
Never open the drum and/or attempt to replace the spring for
any reason whatsoever. This operation is extremely dangerous
and could cause very serious injury.
Carry out the procedure outlined in paragraph "Replacing the
cable" to disassemble the Balancer and replace the entire drum
(the spring is NOT supplied as a separate spare part).
Dispose of the drum containing the broken spring as specified by
prevailing laws and regulations. DO NOT abandon it or dispose
of it together with other types of waste and/or scrap because if it
opens, even by accident, it is VERY DANGEROUS and could cause
serious damage to anyone.
NOTICE
WARNING
WARNING
DANGER
DANGER
EN
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