Camshaft
每一侧都有一个凸轮轴组件。 3508 凸轮轴由五个轴承支承。 3512 凸轮轴由七个轴承支承。 3516 凸轮轴由九个轴承支承。 每个凸轮轴都由后齿轮总成驱动。
凸轮轴转动时，每个凸轮移动一个挺柱。 每个气缸有三个挺柱。 每个外侧挺柱都会移动一个推杆和两个气门。 该气门可以是进气门，或者是排气门。 中央挺柱会移动一个操纵单体喷油器的推杆。
凸轮轴必须与曲轴正时同步。 凸轮轴凸轮与曲轴位置的关系使每一缸的气门和单体喷油器能够在正确的时间进行操作。
Caterpillar Information System:
3500 Engines For Caterpillar Built Power Modules Crankshaft
3500 Engines For Caterpillar Built Power Modules Pistons, Rings and Connecting Rods
Electronic Modular Control Panel II+ (EMCP II+) GSC CID 0168 - FMI 04
Electronic Modular Control Panel II+ (EMCP II+) Engine Does Not Shutdown (for EUI Engines)
Electronic Modular Control Panel II+ (EMCP II+) Engine Does Not Shutdown (for MUI 3412C, 3508,3512, 3516 Engines)
C-10, C-12, C-15 and C-16 Industrial Engines Engine Cranks but Will Not Start
PM3516 Power Modules Reference Material
C-9 Engine for TK711, TK721, TK722, TK732, TK741, TK751, and TK752 Track Feller Bunchers Electronic Service Tool Will Not Communicate with ECM
C11 and C15 Engines for Caterpillar Built Machines Can Not Reach Top Engine RPM
Electronic Modular Control Panel II+ (EMCP II+) GSC CID 0248 - FMI 09 (for EUI Engines)
2000/11/01 Remanufactured Stanadyne Fuel Injection Pumps are Available for 3054 and 3056 Engines {1251}
3500 Generator Set Engines Valve System Components
3500 Marine Engines Cooling System Pressure Cap - Test
Installation Instructions For Product Link 101 Inline Timer{7602} Installation Instructions For Product Link 101 Inline Timer{7602}
3126B and 3126E On-highway Engines Engine Pressure Sensor Open or Short Circuit - Test
3500 Generator Set Engines Electrical System Operation
3500 Engines For Caterpillar Built Power Modules Alternator
JF Series Starting Motor Armature End Play - Adjust
3500 Generator Set Engines Magnetic Switch
3126B and 3126E On-highway Engines Engine Temperature Sensor Open or Short Circuit - Test
3500 Engines For Caterpillar Built Power Modules Starting Motor
PM3516 Power Modules Maintenance Recommendations
3500 Engines For Caterpillar Built Power Modules Engine Speed Sensor
JF Series Starting Motor Service Tools