1. Matengenezo na ubadilishaji wa skrini. Skrini imetengenezwa kwa chuma cha karatasi au chuma cha feri kilichopigwa. Wakati skrini imechoka au imevunjika na vitu vya kigeni, ikiwa uharibifu si mkubwa, inaweza kutengenezwa upya kwa kuunganishwa kwa riveti au solder; ikiwa eneo ni kubwa, skrini mpya inapaswa kubadilishwa. Wakati wa kufunga skrini, upande wa burr wa skrini unapaswa kuelekea ndani, upande wenye mng'ao kuelekea nje, na skrini na fremu ya skrini inapaswa kushikamana kwa tightly. Wakati wa kufunga skrini ya pete, muungano wa lap unapaswa kuwa katika mwelekeo wa mzunguko ili kuzuia nyenzo kukwama kwenye muungano wa lap.
Second, the lubrication and replacement of the bearings. The grinder wa mahindi is cleaned after every 300 hours of operation. If the bearing is oil lubricated, it is advisable to fill the bearing housing clearance by 1/3 when adding new oil, and the maximum is not more than 1/2. Just tighten the capped oil cup cover a little before operation. When the grinder wa mahindi bearing is seriously worn or damaged, it should be replaced in time, and pay attention to strengthen lubrication; if using tapered roller bearing, pay attention to check the axial spacing of the bearing to keep it 0.2-0.4 mm. If there is discomfort, increase it. Reduce the paper pad at the bearing cover to adjust.
Third, the replacement of the claws and hammers. Among the pulverizing parts, the pulverizing claws and the hammer pieces are the wearing parts in the grinder wa mahindi, and are also the main components affecting the pulverizing quality and productivity. The pulverizing claws and the hammer pieces should be replaced in time after being worn. When the jaw crusher replaces the claws, the disc should be pulled out first. Before pulling out, first open the round nut lock piece on the back of the disc, use a hook wrench to unscrew the round nut, and then pull the disc out with a special puller. In order to ensure the balance of the rotor operation, it is necessary to pay attention to the complete set of replacement when changing the teeth. After the replacement, static balance test should be done to make the grinder wa mahindi work stable. Be sure to tighten the nut when assembling the jaws, and be careful not to miss the spring washer. The qualified parts should be selected when changing the teeth. The weight difference of the single teeth should be no more than 1.0-1.5 grams.