RIDGID R2720 Operator's Manual page 17

MAINTENANCE
TIMING BELT REPLACEMENT
See Figures 13 - 14.
n Unplug the sander.
n Remove dust bag.
n Lay belt sander on side as shown.
n Remove sanding belt from sander. Follow instructions on
page 12 to remove sanding belt.
NOTE: Removing sanding belt will simplify the process
of installing a new timing belt.
n Remove belt cover screw and belt cover.
n Force old timing belt from large pulley with a screwdriver
and remove it from small pulley. If it is worn out, simply
cut the old timing belt and remove.
n Install new timing belt over small pulley first.
n Holding the timing belt as shown in Figure 14, press belt
onto the large pulley turning it as you press the belt on.
n Reassemble belt cover and screw.
n Tighten screw securely.
n Install the sanding belt.
WARNING:
Never attempt to operate the belt sander without
belt cover in place.
SCREW
SMALL
PULLEY
SANDER SHOWN WITH DUST BAG AND
SANDING BELT REMOVED
APPLY PRESSURE HERE AND
TURN LARGE PULLEY
17
BELT
COVER
LARGE
PULLEY
TIMING
BELT
Fig. 13
Fig. 14