Gear Group (Rear)
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图 1 | g00838735 |
典型示例 |
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图 2 | g00838736 |
(1) 凸轮轴驱动齿轮
(2) 板
(3) 螺栓
按照以下步骤拧紧凸轮轴驱动齿轮的螺栓。
- 拧紧凸轮轴齿轮的固定螺栓。
扭矩 ... 360 N·m (265 lb ft)
注: 在组装前确保凸轮轴端锥和凸轮轴齿轮的锥孔清洁、干燥,无残渣非常重要。
- 在凸轮轴齿轮的螺栓头处画一条垂直线。 请参考图 3。
- 用冲头顶住凸轮轴齿轮固定板。 用锤子敲击冲头 3 到 4 次。
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图 3 | g01226674 |
垂直线 |
- 再次拧紧凸轮轴齿轮的固定螺栓。
扭矩 ... 360 N·m (265 lb ft)
- 重复步骤 3 和步骤 4,直到螺栓上的标记转过至少 90 度。 请参考图 4。
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图 4 | g01226685 |
(4) 凸轮轴惰轮齿轮
(5) 螺栓
- 扭矩 ... 240 ± 20 N·m (175 ± 15 lb ft)
(6) 轴
-
将轴承装至齿轮内后必须将轴承加工至规定尺寸。
- 直径 ... 81.000 ± 0.010 mm (3.1890 ± 0.0004 in)
- 以下数值为经过加工的轴承孔孔径。 ... 81.060 ± 0.010 mm (3.1913 ± 0.0004 in)
- 最大粗糙度平均值 (Ra) ... 0.8 微米 (32 微英寸)
- 以下数值为经过加工的轴承孔孔径。 ... 81.060 ± 0.010 mm (3.1913 ± 0.0004 in)
(7) 惰轮齿轮组
(8) 轴
-
将轴承装至齿轮内后必须将轴承加工至规定尺寸。
- 直径 ... 74.990 ± 0.010 mm (2.9524 ± 0.0004 in)
- 以下数值为经过加工的轴承孔孔径。 ... 75.060 ± 0.010 mm (2.9551 ± 0.0004 in)
- 最大粗糙度平均值 (Ra) ... 0.8 微米 (32 微英寸)
- 以下数值为经过加工的轴承孔孔径。 ... 75.060 ± 0.010 mm (2.9551 ± 0.0004 in)
(9) 螺栓
- 扭矩 ... 140 ± 10 N·m (105 ± 5 lb ft)
(10) 板
(11) 凸轮轴驱动齿轮
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图 5 | g00838740 |
(12) 定位标记
惰轮齿轮上的标记必须和曲轴齿轮上的标记对准。
(13) 曲轴齿轮
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