Camshaft
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图 1 | g01460189 |
注: 组装前,将 8T-2998 润滑剂 涂敷在止推垫圈的侧面。 将一薄层 8T-2998 润滑剂 涂敷在凸轮轴轴承与止推垫圈凹槽接触的区域。
(1) 止推垫圈的尺寸
- 新止推垫圈的厚度 ... 8.50 ± 0.05 mm (0.335 ± 0.002 in)
- 新凸轮轴槽的厚度 ... 8.75 ± 0.05 mm (0.344 ± 0.002 in)
- 新凸轮轴的端隙 ... 0.15 到 0.35 mm (0.006 到 0.014 in)
- 新凸轮轴槽的厚度 ... 8.75 ± 0.05 mm (0.344 ± 0.002 in)
注: 将凸轮轴组装至缸体前,将一薄层 8T-2998 润滑剂 涂敷在每个凸轮轴轴颈和凸轮轴轴承的外径上。
(A) 轴颈表面尺寸
- 轴承轴颈直径 ... 91.88 ± 0.02 mm (3.617 ± 0.001 in)
- 组装后凸轮轴上的轴承孔径 ... 92.152 ± 0.015 mm (3.6280 ± 0.0006 in)
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图 2 | g01460209 |
(2) 8 个拔梢锁紧双头螺柱的扭矩 ... 35 ± 5 N·m (26 ± 4 lb ft)
(B) 定位销自前凸轮轴端部的伸出量 ... 11.5 ± 0.5 mm (0.45 ± 0.02 in)
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图 3 | g01420238 |
按照以下步骤得出实际凸轮升程:
- 测量凸轮轴凸轮高度 (D) 。
- 测量基圆 (E) 。
- 从凸轮高度值 (D) 中减去基圆 (E) 。 二者之差就是实际凸轮轴凸轮升程 (C) 。
(C) 凸轮轴凸轮规定升程
- 进气凸轮 ... 12.448 mm (0.4901 in)
- 排气凸轮 ... 17.184 mm (0.6765 in)
Caterpillar Information System:
MINEGEM Machine Control ; Guidance Products Display Description
2008/05/05 Improved Service Brake and Service Brake Lines Group Reduces Seal Leaks {4251, 4257}
277C, 277C2, 287C, 287C2 and 297C Multi Terrain Loaders Machine Systems Gear Motor (Fan, Aftercooler)
2008/03/03 An Improved Electrical Circuit for the Level Alarm on the Hydraulic Tank is Now Used on Asphalt Pavers {1408, 5056, 7422}
24M Motor Grader Power Train Torque Converter - Install
24M Motor Grader Power Train Torque Converter - Remove
C4.4 Industrial Engine Engine Rating Conditions
C4.4 Industrial Engine Engine Rating Definitions
R2900G Load Haul Dump Secondary Steering - If Equipped
R2900G Load Haul Dump Indicators
MINEGEM Machine Control ; Guidance Products General Information
2008/04/21 The Engine Oil Filler and Oil Level Gauge Groups are Improved {1316, 1326, 7513}
24M Motor Grader Machine Systems Fuel Tank - Remove
24M Motor Grader Machine Systems Fuel Tank - Install
C4.4 Engines For Caterpillar Built Machines Start Relay Circuit - Test
Replacement of the Cab Roof on Certain Caterpillar Machines {7301} Replacement of the Cab Roof on Certain Caterpillar Machines {7301}
3512C Engine for Caterpillar Built Machines Water Temperature Regulators - Remove
511 Track Feller Buncher, 521 Track Feller Buncher, 522 Track Feller Buncher and 532 Track Feller Buncher Machine Systems Piston Pump (Main Hydraulic)
2008/02/25 New Software For the Machine ECM Is Now Available {7620}
966H Wheel Loader and 972H Wheel Loader Power Train MID 081 - CID 0621 - FMI 03
3512C Engine for Caterpillar Built Machines Water Temperature Regulators - Install
3512C Engine for Caterpillar Built Machines Water Pump - Remove
C13, C15, and C18 Generator Set Engines Camshaft
3500B Engines and 776D, 777D, 784C, 785C, 789C, 793C and 793D Off-Highway Truck/Tractors Crankcase Breather