تصحيح أعطال محطم الفك — المشاكل الشائعة والحلول

Jaw Crusher Troubleshooting Guide

Jaw crushers are robust machines, but operating conditions can cause problems that reduce efficiency and lead to costly downtime. This guide helps diagnose and solve the most common jaw crusher problems.

Problem: Excessive Vibration

Possible Causes:

• Loose foundation bolts
• Worn or damaged bearings
• Unbalanced flywheel or counterweight
• Misaligned drive components
• Feed material hitting unbalanced areas

Solutions:

• Tighten all foundation bolts to specified torque
• Check bearing condition and clearance
• Inspect flywheel for damage or buildup
• Check pulley alignment and belt tension
• Verify feed distribution is even

Problem: Abnormal Noise

Possible Causes:

• Metal-on-metal contact in crushing chamber
• Worn bearings
• Loose components
• Foreign material in crusher

Solutions:

• Inspect jaw dies for wear — replace if worn to limit
• Check bearing condition and lubrication
• Tighten all bolts and fasteners
• Clear any foreign material from chamber

Jaw Crusher Troubleshooting — Common Problems

Problem: Reduced Throughput

Possible Causes:

• Worn jaw dies reducing effective crushing
• Incorrect CSS setting
• Feed material too large
• Screen blinding (if in closed circuit)
• Hydraulic pressure issues

Solutions:

• Measure and replace jaw dies if worn
• Reset CSS to proper specification
• Pre-screen to remove oversize feed
• Check and clear any blockages
• Verify hydraulic system operation

Problem: Jaw Plate Damage

Possible Causes:

• Material contains uncrushable objects
• Incorrect jaw plate installation
• Wrong jaw plate profile for application
• Excessive shock loading

Solutions:

• Install metal detector upstream
• Reinstall plates correctly with proper seating
• Select correct tooth profile
• Regulate feed rate to prevent shock loading

Problem: Bearing Overheating

Possible Causes:

• Insufficient lubrication
• Wrong lubricant grade
• Contaminated lubricant
• Excessive belt tension
• Ambient temperature too high

Solutions:

• Check oil level and lubricate properly
• Use correct lubricant grade for temperature
• Drain and replace contaminated oil
• Adjust belt tension
• Improve ventilation or cooling

WSHT provides comprehensive jaw crusher technical support and genuine replacement parts for all major jaw crusher brands and models.