EXCESSIVE WEAR OF KNUCKLE PINS AND BUSHINGS
CAUSE REMEDY
Inadequate or improper lubrication Consult lubrication chart for proper
lubricant, lubrication intervals and
procedures. Increase lubrication frequency
when operating in extreme conditions.
FRONT AXLE SHIMMY OR VIBRATION
CAUSE REMEDY
Incorrect caster setting Adjust caster
Wheels and/or tires not properly balanced Balance
Worn shock absorbers Replace
T300-1_T500-1_T780
Troubleshooting
390 P/N 12261-683
REVISED: January 2015
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