C-12 Engine Caterpillar


Belts - Inspect/Adjust/Replace

Usage:

C-12 9SM

检查

皮带张紧度应该在发动机运行的最初 20 至 40 小时之间作首次检查。

首次检查后,应每隔 PM 级别 1 个月或 3 个月检查一次皮带张紧度。

为使发动机性能最大化,检查皮带是否磨损和断裂。 更换损坏或磨损的皮带。

对于需要多根传动皮带的应用,要更换相配的整组传动皮带。 由于旧皮带已被拉伸,只更换一组中的一条皮带会使新皮带承受更多的负载。 额外负载就会加到新皮带上,从而造成皮带断裂。

如果皮带过松,振动会引起皮带和皮带轮不必要的磨损。 松弛的皮带可能打滑而引起过热。

如果佩戴太紧的话,就会在皮带轮和皮带上施加了不必要的应力。 此应力可能会缩短部件的使用寿命。

拆下传动皮带护罩。 检查交流发电机和附属驱动皮带(如有配备)的状况和调整情况。

要检查皮带张力,在皮带轮中间施加 110 N (25 lb ft) 的力。 调整正确的皮带将下垂 9 mm (0.35 inch)15 mm (0.59 inch)

如果皮带不需要更换或调整,则安装皮带罩。 如果皮带需要调整或更换,执行下述程序以便调整皮带张紧度。

  • 如果发动机配备制冷压缩机,则以下部件将配备自动皮带张紧器:用于风扇驱动、交流发电机和附件的皮带。

  • 如果发动机没有配备制冷压缩机的话,则使用交流发电机来调整皮带张紧度。

调整

交流发电机传动带



图 1g00485289
典型交流发电机的安装
(1) 调整螺母
(2) 安装螺栓

  1. 松开固定螺栓 (2) 和调整螺母 (1)。

  2. 移动皮带轮以调整皮带张紧度。

  3. 拧紧调整螺栓 (1) 和固定螺栓 (2)。 参见技术规格手册, "扭矩规格"主题。

  4. 安装皮带护罩。

如果安装了新皮带,应在发动机以额定转速运转 30 分钟后再次检查皮带张紧度。

Caterpillar Information System:

C-12 Engine Belt Tensioner - Check
120M Series 2, 12M Series 2, 140M Series 2 and 160M Series 2 Motor Graders All Wheel Drive Power Train Control Manifold (All Wheel Drive)
Reusability Recommendations for Duo-Cone Seals {7555, 7561} Reusability Recommendations for Duo-Cone Seals {7555, 7561}
2011/01/12 An Improved Procedure for Using an ECM for a Machine Test Is Now Available {7610}
Procedure to Use a Machine Electronic Control Module (ECM) for Machine Testing{7610} Procedure to Use a Machine Electronic Control Module (ECM) for Machine Testing{7610}
C-12 Engine Air Compressor - Check
C-12 Engine Configuration Parameters
2010/12/23 New Colors for the Injector Seals for C175-16 Generator Set Engines {1251, 1254, 1290, 1713, 7555}
C175 Generator Sets Engine Oil Sample - Obtain
C-12 Engine Plate Locations and Film Locations
C-12 Engine Product Description
3512B Oil Well Servicing Engines Air Shutoff
UPSB220 Uninterruptible Power Supply Logged Events
UPSB220 Uninterruptible Power Supply Measurement System
UPSB220 Uninterruptible Power Supply Statistics
UPSB220 Uninterruptible Power Supply Time and Date Adjustment
2010/12/23 The Adapter for the High Pressure Fuel Rail Pressure Sensor Is Not Serviced for C175-16 Generator Set Engines {127A, 1718}
C15 and C18 Petroleum Generator Sets Coolant Temperature Regulator - Replace
C-12 Engine Engine Valve Lash - Check
C-12 Engine Fuel Injector - Inspect/Adjust
Installation of the Water-Cooled Throttle for G3500C and G3500E Generator Set Engines{1265} Installation of the Water-Cooled Throttle for G3500C and G3500E Generator Set Engines{1265}
2011/02/09 New Software is Now Used for C9 Industrial Engines {1901, 1902, 1920}
2010/12/20 Make Sure that the Radiator Fan for the 3500 Generator Set Engine Operates at the Correct Speed {1356, 1360}
C7 Engines for Combat and Tactical Vehicles Product Description
Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.