What causes fault code CONV-GEARBOX1 (Conveyor Gearbox Fault — Noise / Temperature / Oil Leak)?

Gear oil level low — leak or not filled after last oil change. Gear oil degraded — water contamination, extreme age, or wrong oil type. Internal bearing failure — generates noise, heat, and metal particles in oil. Gear teeth worn or chipped — overloading or insufficient lubrication over time. Output shaft seal worn — oil leaking onto conveyor frame or floor

How do I fix fault code CONV-GEARBOX1?

Check oil level through sight glass or dipstick — top off if low with correct oil type. Check oil condition — dark color, metallic sheen, or milky appearance indicates problems. Listen for abnormal noise — grinding means gear contact issue, whining means bearing issue. Measure gearbox surface temperature with IR gun — compare to historical readings or similar gearbox. If leaking from output seal, plan for seal replacement — requires pulling the gearbox off the conveyor. Collect an oil sample for analysis — particle count and composition tells you exactly what is wearing. Plan gearbox replacement if internal damage is confirmed — do NOT run until failure, a catastrophic gearbox failure can destroy the conveyor shaft

Conveyor Gearbox Fault — Noise / Temperature / Oil Leak

CONV-GEARBOX1

Conveyor drive gearbox exhibiting abnormal noise, elevated temperature, or oil leakage. Indicates internal gear wear, bearing failure, or seal degradation.

high conveyor packaging palletizer

conveyor gearbox oil bearing gear noise temperature

Probable Causes (ranked)

Gear oil level low — leak or not filled after last oil change
Gear oil degraded — water contamination, extreme age, or wrong oil type
Internal bearing failure — generates noise, heat, and metal particles in oil
Gear teeth worn or chipped — overloading or insufficient lubrication over time
Output shaft seal worn — oil leaking onto conveyor frame or floor

Fix Steps

1 Check oil level through sight glass or dipstick — top off if low with correct oil type
2 Check oil condition — dark color, metallic sheen, or milky appearance indicates problems
3 Listen for abnormal noise — grinding means gear contact issue, whining means bearing issue
4 Measure gearbox surface temperature with IR gun — compare to historical readings or similar gearbox
5 If leaking from output seal, plan for seal replacement — requires pulling the gearbox off the conveyor
6 Collect an oil sample for analysis — particle count and composition tells you exactly what is wearing
7 Plan gearbox replacement if internal damage is confirmed — do NOT run until failure, a catastrophic gearbox failure can destroy the conveyor shaft

Field Trick

Put a magnet on the gearbox drain plug (magnetic drain plug). When you drain the oil, check the magnet. A few fine particles is normal. Metal flakes or chunks means gears are chipping and the gearbox has limited life left. This $5 drain plug is your early warning system.

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