Model 490 Operator Training
Controls Operating Procedures Troubleshooting Quiz
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Troubleshooting
Troubleshooting
Excessive mix leakage from
door spout.
Cause: Wrong type lubricant being used
(Example: petroleum base lubricant).
Remedy: Use proper lubricant (Example:
Taylor Lube).
Cause: Inadequate lubrication of draw
valve o-rings.
Remedy: Lubricate properly.
Cause: Missing or worn draw valve o-rings.
Remedy: Install or replace regularly.
Excessive mix leakage into drive
shaft drip pan.
Cause: Drive shaft seal installed inside out.
Remedy: Install seal properly.
Cause: Missing or worn drive shaft seal on
drive shaft.
Remedy: Install or replace regularly.
Cause: Worn rear shell bearing.
Remedy: Call service technician to replace
rear shell bearing.
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