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Under the high temperatures and complex working conditions in Africa, it is normal for machines to occasionally "throw a tantrum." Don't rush to shut down and call for repairs; often, a simple manual adjustment is all it takes. Mastering the following core techniques will save you hefty maintenance fees and long waiting times.
Diagnosis: Insufficient feed (chute not open enough) or roller gap too large (wheat not being gripped). Action: Gradually open the feed chute; adjust the handle to tighten the roller gap (loosen slightly after hearing a slight friction sound).
Diagnosis: Insufficient grinding force, or the sieve is torn. Action: Check the sieve for holes; if intact, tighten the roller gap.
Diagnosis: Danger signal! Usually caused by rollers touching (grinding empty), producing iron filings, or unclean raw grain. Action: Stop immediately! Check the inlet magnet for foreign objects; check if rollers are pressed too tightly.
Bearing Issue: "Gurgling" or screeching sounds usually indicate lack of grease or damage. Regularly add high-speed lubricant. Loose Foundation: Machine jumps as a whole, like it's "dancing." Tighten foundation bolts and ensure the base is stable. Foreign Object Impact: Clear metallic clanking sound. Cut power immediately and open the mill chamber to clear stones or nails.
Overload: Feeding too fast or too much. Reduce feed immediately. Low Voltage: Voltage drops during dry seasons causing current to rise. A voltage stabilizer is recommended. Belt Slippage: Press the middle of the belt; 1-2cm depression is ideal. Tension if too loose.
Replace when flour becomes coarse. Thoroughly clean sieve residue before changing; perform a light transmission check after installation to prevent leakage.
Do not wait until it breaks. Confirm model (A-type/B-type) when purchasing; replace in sets to avoid uneven stress from mixing old and new belts.
