11. Troubleshooting
Fault
Possible causes
Motor does not start
• Engine brake lever not pressed
• Spark plug defective
• Fuel tank empty
• Petrol cock closed
Engine performance
• Soil is too firm
drops
• Housing clogged
• Roller badly worn
Imprecise scarifying
• Roller worn
result
• Wrong working depth
Motor is running, roller is
• Toothed belt is torn
not rotating
Rectification
• Press the engine brake lever
• Replace spark plug
• Top up fuel
• Open petrol cock
• Change working depth
• Clean housing
• Replace roller
• Replace roller
• Correct working depth
• By customer service workshop
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