(A) Keep in mind the direction of rotation of the wheel fastening bolts. The nut on the right side wheel is made into right-hand thread (orthodontic), and the nut on the left side wheel is made into left-hand thread (reverse teeth). Therefore, when loosening the left wheel nut, it should be forced clockwise. When tightening, it should be counterclockwise.
(2) Twist the nut by means of diagonal, cross, 3 or 4 twisting movements to prevent the disc from being deformed and the force concentrated on the individual wheel bolts.
(3) When disassembling, first use a socket wrench to loosen the wheel nut and temporarily remove it. Then use the jack to lift the axle, until the tire leaves the ground slightly, then loosen the nut and lift the wheel.
(D) Apply lithium-based or calcium-based grease on the threads before installation to reduce the possibility of sliding. When lifting and lifting the wheel, align the bolt holes so as not to damage the bolt threads. When tightening the nut first hand-tighten, and then use a special wrench to loosen under the wheel, lift the jack, let the wheel fall to the ground, and then tighten the nuts of each wheel with a torque of 200 N • M – 400 N • m.
(5) When installing the tire assembly, align the valve of the tire with the inclined surface of the brake drum.
(6) For the rear tires equipped with twins, attention should be paid to the following points: 1. If the wear of the two tires is not the same, one with a larger diameter and lighter wear should be installed on the outside to accommodate the arched road surface. Need to drive; 2. If you only replace the outer tire, first tighten the inner wheel inner nut, and then install the outer wheel; 3. When the two tires are replaced at the same time, use the jack to lift the wheel twice, respectively, within the installation, Outer tires; 4. The brake gap inspection holes on both wheels should be staggered; 5. The inner and outer wheel valves should be arranged symmetrically to facilitate inspection and adjustment of the inner tire pressure.
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