Camshaft
1 型
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| 图 1 | g00562795 |
185-9699 凸轮轴总成 | |
(1) 排气凸轮
(2) 喷油器凸轮
(3) 进气凸轮
注: 用按 50/50 比例混合的 8T-2998 润滑剂 和清洁发动机机油润滑凸轮轴凸轮。
(4) 轴承轴颈
- 轴承轴颈直径 ... 84.85 ± 0.02 mm (3.341 ± 0.001 in)
注: 安装凸轮轴之前，先用清洁的发动机机油润滑凸轮轴轴承。
(5) 凸轮轴前部
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| 图 2 | g00466866 |
(6) 凸轮轴凸轮升程
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规定的凸轮轴凸尖升程
- 排气凸轮 ... 8.515 mm (0.3352 in)
- 进气凸轮 ... 9.431 mm (0.3713 in)
- 喷油器凸轮 ... 10.451 mm (0.4115 in)
- 进气凸轮 ... 9.431 mm (0.3713 in)
(7) 凸轮轴凸轮高度
(8) 基圆
利用以下程序确定凸轮升程：
- 测量凸轮轴凸轮高度 (7) 。
- 测量基圆 (8) 。
- 从凸轮轴凸轮高度（步骤 1）中减去基圆测量值（步骤 2）。 二者之差即为实际凸轮升程。
实际凸轮升程（步骤 3）与新凸轮轴的规定凸轮升程之间的最大允许差值 ... 0.13 mm (0.005 in)
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| 图 3 | g00544839 |
(9) 螺栓
- 拧紧将盖固定在缸盖的螺栓至以下扭矩值。 ... 13 ± 3 N·m (10 ± 2 lb ft)
2 型
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| 图 4 | g00562795 |
(1) 排气凸轮
(2) 喷油器凸轮
(3) 进气凸轮
注: 用按 50/50 比例混合的 8T-2998 润滑剂 和清洁发动机机油润滑凸轮轴凸轮。
(4) 轴承轴颈
- 轴承轴颈直径 ... 84.85 ± 0.02 mm (3.341 ± 0.001 in)
注: 安装凸轮轴之前，先用清洁的发动机机油润滑凸轮轴轴承。
(5) 凸轮轴前部
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| | |
| 图 5 | g00466866 |
(6) 凸轮轴凸轮升程
-
规定的凸轮轴凸尖升程
- 排气凸轮 ... 8.515 mm (0.3352 in)
- 进气凸轮 ... 9.702 mm (0.3820 in)
- 喷油器凸轮 ... 10.451 mm (0.4115 in)
- 进气凸轮 ... 9.702 mm (0.3820 in)
(7) 凸轮轴凸轮高度
(8) 基圆
利用以下程序确定凸轮升程：
- 测量凸轮轴凸轮高度 (7) 。
- 测量基圆 (8) 。
- 从凸轮轴凸轮高度（步骤 2）中减去基圆（步骤 1）。 二者之差即为实际凸轮升程。
实际凸轮升程（步骤 3）与新凸轮轴的规定凸轮升程之间的最大允许差值 ... 0.13 mm (0.005 in)
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| | |
| 图 6 | g00544839 |
(9) 螺栓
- 拧紧将盖固定在缸盖的螺栓至以下扭矩值。 ... 13 ± 3 N·m (10 ± 2 lb ft)
Caterpillar Information System:
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836G Landfill Compactor and 834G Wheel Dozer Power Train Axle Guards (Front) - Remove and Install
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