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DFG-SERIES SURFACE GRINDERS OPERATION AND PARTS MANUAL REV #3 (07/13/06) PAGE 48
TROUBLESHOOTING
OPERATIONAL PROBLEMS.
Application: All Models.
UNEVEN MULTI-ACCESSORY ATTACHMENT
WEAR
Incorrect installation of the attachment in the
aluminum disc. See INSTALLING A MULTI-
ACCESSORY ATTACHMENT ON THE
COUNTERROTATING DISCS.
Worn or damaged gimbal head Lord® rubber
mounts. Replace mounts.
Accumulation of foreign material on the multi-
accessory attachment. Clean and/or replace the
attachment components as necessary.
Flails and spacer washers are mounted too tight on
the scarifier frame. Remove and/or replace flails and
spacer washers. See MULTI-ACCESSORY
ATTACHMENTS AND APPLICATIONS.
EXCESSIVE JUMPING ON THE WORK SURFACE
Incorrect installation of the attachment in the
aluminum counterrotating disc. See INSTALLING A
MULTI- ACCESSORY ATTACHMENT ON THE
COUNTERROTATING DISCS.
Worn or damaged gimbal head Lord® rubber
mounts. Replace mounts.
Loose gimbal head fasteners. Retorque fasteners as
required.
ACCELERATED V-BELT WEAR
Misaligned and/or improperly tensioned pulleys.
Readjust pulleys and V-belt. See SERVICE section.
Worn pulleys. Replace pulleys as required. See
INSTALLING A REPLACEMENT V-BELT OR
PULLEY.
Improper V-belt. Replace with a name brand B50
series V-belt. Never replace a single belt. Always
replace both V-belts at the same time in matched
sets. See INSTALLING A REPLACEMENT V-BELT
OR PULLEY.
ACCELERATED BEARING WEAR AND/OR
FAILURE
Misaligned and/or improperly tensioned pulleys.
readjust pulleys and V-belts. See SERVICE section.
Bent transmission input or output shaft. Replace
affected shaft(s).
Improper lubrication. See LUBRICATION
REQUIREMENTS.
UNEVEN GRINDING ACTION
Excessive material build-up on the caster wheel face
surface. Remove the material.
Excessive caster wheel bearing wear. Replace the
caster wheel. Excessive axle wear. Replace axle.
Flails and/or spacer washers are mounted too tight
on the scarifier frame. Remove and/or replace flails
and spacer washers. See MULTI ACCESSORY
ATTACHMENTS AND APPLICATIONS.
Mixing new and worn flails, silicon carbide stones,
etc. Remove and replace with components of the
same, approximate size and diameter. See MULTI
ACCESSORY ATTACHMENTS AND APPLICATIONS.