345D MHPU and 349D MHPU Mobile Hydraulic Power Units Machine System Caterpillar


Stick Cylinder

Usage:

349D L DKN



图 1g01445714

注: 组装前,用 248-7522 液压油 润滑专用锁紧螺母 (2) 的表面和螺纹。

(1) 专用锁紧螺母的扭矩 ... 13500 ± 700 N·m (9960 ± 520 lb ft)

(2) 用清洁的润滑脂润滑三个环的内径和外径。

(3) 用清洁的润滑脂润滑密封件的内径和外径。

(4) 在要密封的缓冲器密封件的密封唇上稍涂润滑剂。

(5) 在要密封的 U 形杯密封件的密封唇上稍涂润滑剂。

(6) 在密封的地方,用润滑剂将唇型密封的密封唇稍加润滑。

(7) 将 4C-4032 轴承安装固定胶 涂在刮油密封槽上,然后再组装。

(A) 安装前套筒轴承的内径 ... 100.29 ± 0.02 mm (3.948 ± 0.001 in)

套筒轴承的安装深度 ... 10.00 ± 0.30 mm (0.394 ± 0.012 in)

(B) 活塞外径(两道棱上) ... 188.90 ± 0.03 mm (7.437 ± 0.001 in)

(C) 油缸组件孔 ... 190.00 ± 0.10 mm (7.480 ± 0.004 in)

(D) 杆组件的外径 ... 129.930 ± 0.030 mm (5.1153 ± 0.0012 in)

(E) 缸盖孔(两道棱上) ... 130.630 ± 0.030 mm (5.1429 ± 0.0012 in)

(F) 安装前套筒轴承的内径 ... 100.29 ± 0.04 mm (3.948 ± 0.002 in)

套筒轴承的安装深度 ... 10.0 ± 0.5 mm (0.39 ± 0.02 in)

(8) 组装后挡块的自由直线运动 ... 0.50 ± 0.26 mm (0.020 ± 0.010 in)

(9) 组装后 2 个挡圈的最大外径 ... 81.0 mm (3.19 in)

(10) 安装密封圈,确保切口朝向活塞。

Caterpillar Information System:

G3600 Engines Detonation Occurrence
G3600 Engines Cylinder Is Noisy
3516C Generator Set Engine Power Is Intermittently Low or Power Cutout Is Intermittent
3512C Engine and 785D Off-Highway Truck/Tractors Engine Shutdown Is Intermittent
G3600 Engines Crankcase Pressure Is High
G3600 Engines Coolant Temperature Is Low
2008/01/01 Update on the Hose for the Wastegate {1052, 1053}
2008/01/07 Update on the Hose for the Wastegate {1052, 1053}
3516C Generator Set Engine Engine Misfires, Runs Rough or Is Unstable
Maintenance Requirements for Engines with Crankcase Ventilation Systems{1051, 1054, 1063, 1317} Maintenance Requirements for Engines with Crankcase Ventilation Systems{1051, 1054, 1063, 1317}
3516B Engine for 994F and 994H Wheel Loaders Coolant Contains Fuel
3516C Generator Set Engine Acceleration Is Poor or Throttle Response Is Poor
C9 Engines for Caterpillar Built Machines Unit Injector Hydraulic Pump
349F and 352F Excavators Machine System Specifications Bucket Cylinder Lines
G3600 Engines Electrohydraulic System Oil Pressure Is Low
TH55-E70 and TH55-E90 Petroleum Transmissions Relief Valve (Torque Converter Inlet) - Remove
TH55-E70 and TH55-E90 Petroleum Transmissions Relief Valve (Torque Converter Inlet) - Disassemble
TH55-E70 and TH55-E90 Petroleum Transmissions Relief Valve (Torque Converter Inlet) - Assemble
TH55-E70 and TH55-E90 Petroleum Transmissions Relief Valve (Torque Converter Inlet) - Install
G3600 Engines Engine Cranks but Does Not Start
G3600 Engines Engine Has Mechanical Noise (Knock)
G3600 Engines Engine Misfires, Runs Rough or Is Unstable
C7 Petroleum Engine Zinc Rods - Inspect/Replace - If Equipped with an Aftercooler that is Cooled by Sea Water
C15 and C18 Engines for Caterpillar Built Machines Valve Actuator (Variable) - Remove
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.