User Guide

. Minor grease egress
Description
g Slight trails of grease leaking from the openings or
seal caps
Cause
• Becauseofthedesign,smallamountsofgrease
seepage is permissible
Effect
• None
Remedy
• Noremedialmeasuresrequired
. Heavy grease leakage
Description
• Greaseegress greater than 20 g
g Housing covered with grease
Effect
• Lackoflubricationofthearcsprings
Remedy
• ReplaceDMF
. Balance weights
Description
• Looseormissing
g Indicated by clearly visible welding spots
Cause
• Incorrect handling
Effect
• DMFoutofbalance
g Loud humming
Remedy
• ReplaceDMF
5 DMF failure diagnoses
. Visual inspection/damage patterns