Ingersoll-Rand BMDL-4 User manual

Form 32048-EU
Edition 3
December 1994
INSTRUCTIONS FOR MODELS BMDL-4, BMDL-6, BMDL-8,
BMDL-10, BMDL-12 MEDIUM DUTY BALANCERS
IMPORTANT SAFETY INFORMATION ENCLOSED.
READ THIS MANUAL BEFORE OPERATING BALANCER.
IT IS THE RESPONSIBILITY OF THE EMPLOYER TO PLACE THE INFORMATION
IN THIS MANUAL INTO THE HANDS OF THE OPERATOR.
FAILURE TO OBSERVE THE FOLLOWING WARNINGS COULD RESULT IN INJURY.
FORSEEN USE
. Models BMDL-4, BMDL-8, BMDL-8, BMDL-10, BMDL-12
Medium Duty Balancers are designed to counter-balance
the weight of Power Tools.
. Ingersoll-Rand is not responsible for customers using
these balancers for other applications on which
Ingersoll-Rand was not consulted.
PLACING BALANCER IN SERVICE
Always operate, inspect and maintain this balancer in
accordance with all regulations (Local, state, federal and
country), that may apply to hand held, hand operated
powertools and balancers.
. Calculate the total load to be supported by the balancer.
equipment, accessories and those sections of hose or
cable to be lifted by the balancer. The whole load to be
balanced must be within the specified capacity range of
the balancer. (See balancer capacity shown in the
specifications).
. To achieve the best performance, hang the balancer in A
for capacities up to 4 kg (Fig.1a) and in A for higher
capacities (Fig. 1 b), at a height which allows the use of the
central section of the cable stroke 11.
Connect the suspension in the free hole with a flexible
cable to a suitable support leaving a maximum extra
stroke to 100mm (Fig.1a - 1b). The balancer must be free
to line up with the load.
If screwed fasteners are used to connect the balancer at
point A or S, either self locking systems and/or split pins
should be used.
Hang the load on the hook 15.
Do not lubricate balancers with flammable or volatile
liquids such as kerosene, diesel or jet fuel.
. Do not remove any labels. Replace any damaged label.
ADJUSTMENTS
. To increase capacity rotate the axis F counter-clockwise
using a wrench D (Fig. 2).
To decrease capacity, press spring 8 in a clockwise
direction whilst rotating axis F counter-clockwise using a
wrench D (Fig. 3).
During working the cable must not unwind its total length.
It must stop at least 50mm before the lower limit of the
stroke. If necessary adjust the clamp 13 to limit the
upwards stroke (Fig. 4).
. Since a correct spring tension keeps the drum rotating
freely, the balancer must not be used for lesser loads than
its minimum capacity.
. If the drum blocks during initial adjustment, it could be due
to an insufficient load. Increase capacity by using the
wrench D as in (Fig. 2). Check that with the cable 11
completely wound, the working is regular.
If the drum blocks with the load at the top of the stroke,
proceed as in the previous section, either by increasing
the capacity, or by limiting the upwards stroke by adjusting
clamp 13. If this does not solve the problem, replace the
balancer with one of a lower capacity.
USING THE BALANCER
When the balancer with its load is installed, check that
working conditions are correct (smooth movement with
minimum effort)
For a correct and safe use periodically check the status of
the upper attachments A and S (if screws are used, the
status of self locking systems and/or split pins should be
checked).
Periodically check that parts under strain (hook, cable,
balancer suspension parts and connections to the tool) are
safe and not weakened by wear.
The main balancing spring, together with its housing drum and the centrifugal safety disc are only supplied as one complete item (5).
It IS dangerous for unqualified personnel to dismantle this balancer.
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 authorised trained personnel. Consult your
nearest Ingersoll-Rand Authorised Service Centre.
SAVE THESE INSTRUCTIONS, DO NOT DESTROY.
When the life of the balancer has expired, it should be returned to the nearest Authorised Ingersoll-Rand Service Center for
dismantling and recycling.
Refer all Communications to the nearest
Ingersoll-Rand Office or Distributor.
PROFESSIONALTOOLS