Tensioning The Drive Belt; Replacing The Drive Belt; Environmental Protection - Evolution R255 SMS-DB Notice Originale

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the brushes replaced by a qualified technician.

TENSIONING THE DRIVE BELT

WARNING: Only attempt these procedures with
the machine disconnected from the power supply.
Note: Belt maintenance is not necessary if the
tool is used properly, however adjustments can
be made if the belt fails due to abuse. If the blade
doesn't rotate while the motor is running, inspect
the belt tension and condition.
WARNING: Under no circumstances should
the bearing retention bolts shown below
be adjusted or removed. If these bolts
are adjusted or removed this will void the
warranty of the machine.
Tensioning the belt:
• To gain access to the transmission case remove
the plastic case cover by unscrewing the three
(3) machine head bolts which hold it in place
with the supplied 4mm Hex Key. (Fig. 72)
• Loosen the four (4) socket headed screws
which secure the motor in place. (Fig. 73)
• The tensioning screw (Fig. 74) is accessed
through a hole in the rear of the aluminium
transmission case with the supplied 4mm
Hex Key.
• Use the supplied 4mm Hex Key to turn the
tensioning screw in the required direction,
clockwise to increase the tension, counter-
clockwise to reduce the tension.
• Place a finger underneath the drive belt and
gently push upwards to discern the tension.
• The belt should be fairly taut over the two
drive pulleys, with approximately 3mm (1/8in)
deflection detectable either side of the belt at
the midpoint between the pulleys. (Fig. 75)
• When the belt tension is correct, tighten the
four (4) socket headed screws and replace the
transmission case cover.

REPLACING THE DRIVE BELT

Note: Should the belt need replacing, a
genuine replacement belt can be purchased by
contacting the appropriate customer services
on page 3 of this manual.
Replacing the belt:
• To gain access to the transmission case remove
the plastic case cover by unscrewing the three
(3) machine head bolts which hold it in place
with the supplied 4mm Hex Key. (Fig. 72)
• Loosen the four (4) socket headed screws
which secure the motor in place. (Fig. 73)
• Remove all tension from the motor by turning
the tensioning screw (Fig. 74) counter-
clockwise.
• Remove the drive belt.
• Thread a new drive belt onto the two pulleys,
ensuring that the 'V's' in the belt fit into the 'V's'
machined in the pulleys, and that the belt fits
fully across the width of both pulleys.
• Tension the belt as described in the 'Tensioning
the Belt' section.
• Replace the transmission case cover.

ENVIRONMENTAL PROTECTION

(6.4)
Waste electrical products should not be
disposed of with household waste. Please
recycle where facilities exist. Check with your
Local Authority or retailer for recycling advice.
37
EN