GEISMAR MP.12, Manual

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Ref. : 450100 FR P a g e
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1.4 – Specific safety instructions
1.4.1 – Risks that can be generated by
use of the MP.12 type grinding
machine
The main risks that “MP12” type rail
grinding machines may generate for
their users and those around them,
are as follows:
■ FIRES
further to fuel handling.
■ FIRES
caused by sparks
encountering a flammable material.
■ BURSTING
of wheels used in
abnormal conditions.
■ INJURIES
by flying sparks (eye
protection is particularly necessary)
or, in some cases, flying wheel
debris.
■ BURNS,
severe, should part of the
body come into contact with the
rotating wheel.
■ BREATHING IN
of particles due to
grinding: if necessary wear a
protective device preventing you
from absorbing these particles.
General notions
- Do not use wheels that are damaged, split or
cracked
- Rotate new or reassembled wheels off-load for
30 seconds. Personnel should stand away during
this test, except for the control operator who
should remain at the controls of his machine
outside the wheel rotating area, ready to stop the
engine if required.
- During grinding, do not stand in a direct line with
the grinding sparks. If necessary, insert a shield
that will intercept the jet before it reaches any
dangerous points (bush fire hazard in summer).
- Ensure the wheel is not struck during its
operation, as this could result in it bursting.
- Ensure that the wheel is never in contact with a
sleeper or ballast or with any other foreign object.
- Before starting the machine, check proper
condition and fastening of the wheel protective
cap. Never modify it.
- Fit a new cap if the wheel bursts or whenever its
resistance appears to be decreased.
- Regularly take wheel and engine rotation speed
measurements, particularly after reassembling
the machine. Correct if necessary.
- Only use authorised wheel types, both in terms
of dimensions and composition characteristics.
- Never use wheels at speeds greater than the
maximum speed recommended by the
manufacturer. This speed must be marked on
each wheel.
- Before derailing the machine, or between two
grinding sequences causing a displacement, stop
the engine and put back the wheel, so that it is
retracted inside its protective guard.
ONLY USE WHEELS:
- With a maximum operating speed greater than
the maximum speed of the wheel-holder shaft,
marked on the machine.
- With an outer diameter less than or equal to the
maximum authorised diameter marked on the
machine.
- Authorised by applicable regulations for this
machine type.