Simex PL 4520, Use And Maintenance Manual

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9.13 General operating conditions
A- Adjust the planing depth, as outlined in para.
9.8;
B- Move the machine (self-levelling planer) over
to the work equipment (fig. 1). Try to keep the
machine as central as possible in relation to the
side shift to ensure better balance overall, and
then lower the machine so it is a few centimetres
off the ground;
C- Tilt the machine forwards slightly so it is resting
on the ground at the front, and the front wheels of
the prime mover are raised (fig. 2);
D- Start the drum turning slowly (see para. 9.11),
keeping the prime mover engine idling, then
accelerate gradually until top engine speed is
reached (fig. 3);
E- Using the prime mover bucket tilt controls,
lower the self-levelling planer until the drum
penetrates the material to be planed and the skids
are gripping the ground (fig. 4);
F- Proceed, slowly at first, then increasing
constantly until the work speed reached is
convenient but not so fast that the cutter drum
jams.
N.B. PLEASE SEE THE PRIME MOVER’S INSTRUCTION MANUAL FOR INFORMATION ON THE
MACHINE’S OPERATING CONTROLS.
For respiratory protection purposes, use of a safety mask during operation is compulsory.

When carrying out shallow planing, it is advisable to keep the machine tilted forwards.

If the machine jams:
1- move backwards slightly, so that the drum starts turning again;
2- start working again but proceeding at a slower pace.