3126B Engines for Caterpillar Built Machines Caterpillar


Pistons and Connecting Rods - Assemble

Usage:

120H 124

组装步骤

表 1
所需工具    
工具     零件号     零件说明     数量    
A     1U-6683     活塞环扩张器     1    


注意

保持所有零件清洁无杂质。

杂质会造成快速磨损和缩短部件寿命。



注意

验证活塞和连杆是否正确组装。 确保连杆和连杆盖上刻的号码处在正确的位置。 连杆和连杆盖的标号对应应该安装的气缸。





    图 1g00988681

  1. 检查活塞环 (5) 的端隙。 请参阅技术规格手册, "活塞和活塞环"。

    注: 油环必须安装在弹簧上,并且两端的缝隙与油环弹簧接缝相差 180 度。

  1. 利用工具 (A) 安装机油控制活塞环。 应从活塞环端隙转动弹簧两侧 180 度。

  1. 安装中间活塞环时使标有 "UP-2" 的一侧朝向活塞顶部。 利用工具 (A) 安装中间活塞环。

  1. 安装顶活塞环时使标有 "UP-1" 的一侧朝向活塞顶部。 利用工具 (A) 安装顶部活塞环。



    图 2g00988732

  1. 通过将新轴承压入连杆内更换连杆轴承 (6) 。 关于正确的工具和安装程序,请参阅专门说明书, SEHS7295。



    图 3g01027812

  1. 此活塞为两件式组件。 此活塞由活塞冠 (7) 和活塞裙 (8) 组成。 轴承 (9) 不可维修。



    图 4g00988677


    注意

    挡圈安装不当可导致活塞和连杆在发动机运行中分离。 此现象可造成活塞裙断裂和发动机严重损坏。


  1. 将活塞 (1) 定位到连杆 (3) 上。 在销钉 (4) 上涂抹干净的机油后安装销钉 (4) 。 确保挡圈位于活塞 (1) 的环槽内。

End By: 安装活塞和连杆。 请参阅 拆解和组装, "活塞和连杆 - 安装"。

Caterpillar Information System:

2000/06/19 5T-5925 Guide Assembly No Longer Used {7258}
C15 and C18 Engines for Caterpillar Built Machines CID 0266 FMI 02 Incorrect Crank-without-inject inputs
2000/05/22 Correction to Operation and Maintenance Manual, SEBU6652 and to Operation and Maintenance Manual, SEBU7356 for the Transmission Oil {7560, 7581}
3126B Engine for Lexion 450, Lexion 460, and Lexion 460 R Combines No Diagnostic Codes Detected
3408E and 3412E Engines for Caterpillar Built Machines CID 0264 FMI 08 Decel Throttle Position signal abnormal
3408E and 3412E Engines for Caterpillar Built Machines CID 0091 FMI 02 Incorrect Throttle Switch inputs
143H and 163H Motor Graders Seat - Inspect
3408E and 3412E Engines for Caterpillar Built Machines CID 0091 FMI 00 Throttle Switch not released
2000/05/15 A Special Instruction for the Installation of the 187-6171 Open ROPS Heater Gp is now Available {7304}
2000/05/22 A New Plate for the Fuse Panel Deflects Rain and Water {7323, 7451}
TH62, TH63, TH82, TH83 and TH103 Telehandlers Machine Systems Counterweight - Remove and Install
725 and 730 Articulated Trucks Steering, Suspension, and Body Hoist Hydraulic Systems Suspension System
2001/05/14 New Keypads Are Used {7490}
228 and 248 Skid Steer Loaders Machine Systems Pump Flow - Test
3114, 3116, and 3126 Engines Governor - Adjust
3176C, 3196 and 3406E Engines for 725, 730, 735, 740, and 740 Ejector Articulated Trucks Low Power/Poor or No Response to Throttle
3408E and 3412E Engines for Caterpillar Built Machines CID 0277 FMI 08 Timing Calibration signal abnormal
776D Wheeled Tractor and 777D and 777D HAA Off-Highway Trucks Power Train Traction Control Valve - Remove
3456 Engine, 836G Landfill Compactor, 834G Wheel Dozer and 988G Wheel Loader CID 0799 FMI 12 Need Service Tool update
24H Motor Grader Hydraulic and Steering System Disc Pack Preload for Circle Drive - Adjust
24H Motor Grader Hydraulic and Steering System Axle Toe-In (Front) - Adjust
HDB Series and M1 Series Heavy Duty Brushless Alternators Service Tools
CS-431C, CP-433C and CS-433C Vibratory Compactors Auxiliary Hydraulic System Metering Pump (Steering)
D400E Series II Ejector Truck Steering, Suspension, and Ejector Body Hydraulic Systems Relief Valve (Ejector) - Test and Adjust
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