Operating The Machine; Use On Vignole Rail - GEISMAR MP.12 Manual

4.2 – Operating the machine
4.2.1 – Use on Vignole rail
Roll the machine on the rail using its two flat rollers. The guide flanges,
located on either side of the rail, hold it in place laterally (Refer to 3.3
Adjusting the guide rollers).
Start the engine (refer to the engine handbook and to 4.1 Starting and
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stopping).
Release the handle Item ③ to raise and lower the wheel.
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Start by trimming the part to be ground, up to roughly 1mm of rail
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surface. To do this, work in a series of quick runs, driving the machine in
short movements back and forth along the rail. On each run, turn by a
fraction of a turn the flywheel Item ① moving the wheel forward. Start
with the horizontal surface choosing the position of the operating arm
Item ② furthest with respect to the machine. To this end, loosen the
handle Item ⑤, separate the two parts (arm/machine) as far as possible,
and retighten the handle Item ⑤.
Trim the sides, having first brought the operating arms Item ② as close
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as possible to the machine. To do this, release the handle Item ⑤ and bring
up the two parts until they touch the limit stops Item ④. Two intermediate
positions are indicated by a ball-type clip-on mechanism. These positions
must be chosen to grind the rail curve. However, it is also possible to work
in any other position.
To finish, return to the rail top grinding position. Then adjust the wheel
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precisely with respect to the rail profile. To do this, skim the wheel along
the rail (some sparks will appear). You do not need to perform this
operation in zones close to the weld but rather in zones where rail profile
is correct.
Ref. : 450100 FR
Grind the entire profile until all weld traces have vanished (starting with
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the top, then the side and finally the curve). Finish by spreading the fillet
over roughly 10 cm on either side of the weld. Check flatness using a
perfectly rectilinear rule. If necessary, compensate wheel wear using the
flywheel Item ①. On no account can an indentation be formed if these
instructions are complied with.
Once grinding is complete, rotate by 3 or 4 turns in an anti-clockwise direction
the wheel forward flywheel Item ①. The wheel is protected in its casing and
there is no risk of it coming into contact with the next weld.
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