SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 33
5)
Remove the worn V-belt. Inspect the electric motor and
transmission pulleys for wear and damage. Install the
replacement belt, P/N SFB45.
a)
Do not install replacement belt if the pulleys have
excessively worn grooves. Such pulleys should be
replaced to insure proper belt fit. Operating the V-
belt in worn pulley grooves will accelerate wear,
reduce horsepower and torque levels and
significantly reduce component service life.
b)
A V-belt should never be forced over a pulley. More
belts are broken from this cause than from actual
failure in service.
c)
Keep the belt as clean and free of foreign material
as possible. Do not use belt dressing
6)
Rotate the take-up cap screws clockwise until the V-
belt has enough tension to not allow it to fall off the
pulleys.
MAINTENANCE/SERVICE
REPLACING THE LORD® TYPE ELASTOMERIC MOUNTS
ON THE MULTI-ACCESSORY DISC
Lord® type elastomeric rubber mounts are utilized to allow
each multi-accessory disc to maintain full contact with the
work surface. The rubber mounts afford a constant flex rate
for the multi-accessory disc throughout its service life. The
rubber compound is resistive to the effects of ultraviolet
radiation and most common chemicals encountered when
operating the SURFACE GRINDER .
During the manufacturing process, the rubber mounts are
pressed into specially machined cavities in the disc
mounting plate. Under normal usage and job applications,
the Lord® type rubber mounts will deliver appropriate
performance for the expected service life of the SURFACE
GRINDER. However, an attachment mounted in the multi-
accessory disc that directly strikes a ver tical floor
obstruction with sufficient impact force can cause one or
more of the mounts to become separated from the mounting
plate. This occurrence will not allow the multi-accessory
disc to maintain full contact with the work surface. This
occurrence is also intended to protect the transmission gears
and bearings from costly damage and the operator from an
impact force that could cause personal injury.
Tools Required:
1 each, 5/16 allen wrench.
2 each, 5/8 wrenches.
1 each, arbor press of sufficient capacity and stability.
Parts Required:
Elastomeric Mount, P/N SFJ62502 (as required).
1 container each: Installation Lubricant (or approved
equivalent).
1)
Disconnect the extension cord or SURFACE GRINDER
from the power source.
2)
Position the SURFACE GRINDER on a suitable work
bench with the multi-accessory disc at waist level
3)
Remove the belt guard from the main frame. Clean the
inside of the belt guard with an appropriate safety
solvent. Check for signs of wear and damage. Secure
in a proper storage area.
Observe all applicable safety precautions for the
solvent.
CAUTION
CAUTION
CAUTION
CAUTION
CAUTION
CAUTION
4)
Tilt the SURFACE GRINDER back until the operator
handle comes in contact with the surface. Appropriate
wheel chocks are recommended.
5)
Utilizing the Allen wrench, remove the affected
aluminum multi-accessory disc (if still attached) from
the SURFACE GRINDER.
6)
Utilizing the 9/16-inch wrenches, remove the cap screws
that retain the Lord® rubber mounts to both the mounting
plate and transmission shaft.
7)
Inspect the appropriate cavities in the mounting plate
for wear and damage. Any nick or burr must be removed
by the use of an appropriate file, followed by the use of
240 grit sandpaper.
8)
Apply the installation lubricant to the exterior surface
of the elastomeric mount to minimize damage when
pressing into the mounting disc. If the factory supplied
lubricant is not available, an acceptable alternative is
the use of common liquid soap.
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