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DFG-SERIES SURFACE GRINDERS OPERATION AND PARTS MANUAL REV #4 (05/28/09) 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 counterrota
ting 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
Mis
aligned 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 c
arbide stones,
etc. Remove and replace with components of the
same, approximate size and diam et er . See MULTI
ACCESSORY ATTACHMENTS AND APPLICATIONS.