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DFG-SERIES SURFACE GRINDERS OPERATION AND PARTS MANUAL REV #3 (07/13/06) PAGE 45
MAINTENANCE/SERVICE
FIGURE 49
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.
CAUTION
Do not install an elastomeric mount without the
use of an approved lubricant. Installation without
an approved lubricant can produce tears in the
mount, resulting in substandard operational
performance and service life.
9) Support the elastomeric mount, socket and
mounting plate as depicted in FIGURE 50. The
mounting plate must be suspended from the
arbor press to allow the mount to clear when the
pressing process is completed. A short section
of 1-1/2 inch inside diameter steel tubing can be
utilized for this purpose. Using the arbor press,
apply a steady force in a straight line direction to
the mount until it fully penetrates the cavity in
the mounting disc. Do not attempt to push the
elastomeric mount through the mounting disc
with excessive force. Damage to the elastomeric
mount will result.
10) Reassemble the mounting discs to the
transmission shaft.
11) Reassemble the mounting plate to the mounting
disc.
12) Reassemble the aluminum multi-accessory disc
to the mounting plate.
13) Check to determine that the replacement
elastomeric mounts allow for proper position of
the aluminum multi-accessory disc. If the
elastomeric mounts are not properly positioned,
they will require removal and reinstallation. The
removal process can produce tears and
abrasions in the mount that will require new
replacements.
FIGURE 50
LUBRICATION REQUIREMENTS.
Application: All Models.
Parts Required:
1 each, standard grease gun filled with one of the
following: ESSO Beacon 325, Shell Alvania #2,
Chevron SRI, or equivalent.
1 each, container of dry film lubricant.
1) Lubricate the caster wheel bearings with a dry
film lubricant only. Dry film lubricants dry
immediately upon contact. Use sparingly.
Excess lubricant will attract the fine grained,
powdered materials described and directly affect
bearing service life.
CAUTION
Do not lubricate the caster wheels with any type
of grease material. Grease will attract foreign
material accumulations that can accelerate
bearing wear.
2) The transmission gears are supported by extra
capacity, ball bearing units. Bearings are
lubricated at the time of manufacture and do not
require additional servicing when placing the unit
in initial service. Zerk grease fittings can
promote improper service schedules and an
excessive amount of over lubrication. Excess
grease escaping from around the bearing insert
seals will attract foreign material accumulations
that can drastically shorten their service life.