Fault Phenomenon: Skyjack SJ4632 LE scissor lift aerial work platform during operation, the exhaust pipe glows red, posing a fire risk.

Troubleshooting Process:
– Checked injection timing: timing too late.
– Checked load: prolonged overload.
– Checked intake: insufficient intake.
– Checked exhaust: exhaust restricted.

Root Cause: Injection timing is too late or exhaust is restricted, causing afterburning.

Required Parts: Adjust injection timing or clean exhaust system.