RIDGID R2720 Manual Del Operador página 12

MAINTENANCE
WARNING:
When servicing use only identical RIDGID
replacement parts. Use of any other parts may
create a hazard or cause product damage.
WARNING:
Always wear safety goggles or safety glasses with
side shields during power tool operation or when
blowing dust. If operation is dusty, also wear a
dust mask.
GENERAL MAINTENANCE
Avoid using solvents when cleaning plastic parts. Most
plastics are susceptible to damage from various types of
commercial solvents and may be damaged by their use. Use
clean cloths to remove dirt, dust, oil, grease, etc.
WARNING:
Do not at any time let brake fluids, gasoline,
petroleum-based products, penetrating oils, etc.,
come in contact with plastic parts. Chemicals can
damage, weaken or destroy plastic which may
result in serious personal injury.
Electric tools used on fiberglass material, wallboard, spack-
ling compounds, or plaster are subject to accelerated wear
and possible premature failure because the fiberglass chips
and grindings are highly abrasive to bearings, brushes, com-
mutators, etc. Consequently, we do not recommended using
this tool for extended work on these types of materials. How-
ever, if you do work with any of these materials, it is extremely
important to clean the tool using compressed air.
LUBRICATION
All of the bearings in this tool are lubricated with a sufficient
amount of high grade lubricant for the life of the unit under
normal operating conditions. Therefore, no further lubrica-
tion is required.
BRUSH REPLACEMENT
See Figure 12, page 15.
NOTE: This belt sander is equipped with externally acces-
sible brushes.
 Unplug the sander.
NOTE: FIGURES (ILLUSTRATIONS) START ON PAGE 14
AFTER FRENCH AND SPANISH LANGUAGE SECTIONS
WARNING:
Failure to unplug the tool could result in accidental
starting causing possible serious injury.
NOTE: There are 2 brush caps located on either side of
front housing below the front handle.
 Remove brush caps (2) using a screwdriver.
 Remove brush assemblies (2).
 Check for wear. Replace both brush assemblies when
either has less than 1/4 in. length of carbon remaining.
NOTE: Do not replace one side without replacing the
other.
 Reassemble using new brush assemblies. Make sure
curvature of brush matches curvature of motor and that
brush moves freely in brush tube.
 Reassemble by reversing the steps listed above.
 Tighten all brush caps securely. Do not over tighten.
TIMING BELT REPLACEMENT
See Figures 13 - 14, page 15.
 Unplug the sander.
 Remove dust bag.
 Lay belt sander on side as shown.
 Remove sanding belt from sander. Follow instructions on
page 10 to remove sanding belt.
NOTE: Removing sanding belt will simplify the process
of installing a new timing belt.
 Remove belt cover screw and belt cover.
 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.
 Install new timing belt over small pulley first.
 Holding the timing belt as shown in Figure 14, press belt
onto the large pulley turning it as you press the belt on.
 Reassemble belt cover and screw.
 Tighten screw securely.
 Install the sanding belt.
WARNING:
Never attempt to operate the belt sander without
belt cover in place.
12 - English