Sedgwick SM255t, Operation And Maintenance Instructions, Page: 17 / 32

SM255t Operation/Maintenance Instructions Page 17 of 32
The motor is face mounted to a hinged platform, which is adjustable for position along a slot
in which the locking lever runs. To change the selected speed the lever must be unlocked,
and the motor plate pulled forward to release the tension on the drive belt. The poly-vee belt
may then be relocated on the pulleys, the motor plate pushed away to re-tension the belt,
and the lever re-locked. Always ensure that the belt is fully engaged within the full set of
grooves for each speed setting on both motor and spindle pulleys before starting the
machine.
7.0 Tool Selection
Only tools conforming to EN847-1:1997 and marked MAN should be fitted to this machine
(refer to manufacturer’s sales literature).
Only use tooling with the manual feed cutter block s usually mark with ‘MAN’.
LIMITED CUTTER PROJECTION TOOLING
Where possible,
always use limited cutter projection tooling.
The following information is cont ained in the HSE Information Sheet ‘PUWER 98: Selection of
tooling for use with hand-fed woodworking machines’:
Limited cutter projection tooling (sometimes referred to as chip thickness limitation
tooling) significantly reduces:
● the severity of i njury if a machine operator’s fingers contact the rotating tool;
● the risk of workpiece kickback.
Most ac cidents at woodworking machines are due to the operator’s hands or fingers
encountering the rotating cutters. Amputation usually results. Between 1993 and 1996
there were 165 injuries (amputations and severe lacerations) at machines where
limited cutter projection tooling could have been fitted. It is estimated that limited
cutter projection tooling would have reduced the seriousness of injury in 90% of these
accidents. By reducing the risk of kickback, this type of tooling can also help prevent
many other serious injuries.