Restriction of Air Inlet and Exhaust
如果进气系统有阻力，发动机性能就会降低。 如果排气系统有阻力，发动机的性能也会降低。
空气流过空气滤清器会遇到阻力。 最大进气阻力为
背压是出口弯管的排气压力和大气压力的压力差。 最大排气背压为
Caterpillar Information System:
993K Wheel Loader C32 Engine Supplement Exhaust Cooler (NRS) - Remove and Install
3512C and 3516C Marine Engines Turbocharger
D6K2 Track-Type Tractor Systems General Information (Hydraulic System)
993K Wheel Loader Machine Systems Hydraulic Tank - Remove
D6K2 Track-Type Tractor Machine Systems Piston Pump (Winch)
986H Wheel Loader Hydraulic Tank Breaker Relief Valve - Clean
986H Wheel Loader Hydraulic System Oil Sample - Obtain
980K Wheel Loader Quick Coupler Operation (Block Handler) - If Equipped
986H Wheel Loader Hydraulic System Oil Filter (Hydraulic Fan Return) - Replace
C9.3 Tier 4 Final Engines Fuel Rail Pressure Leakage Is High
993K Wheel Loader Power Train Transmission Oil Pump - Remove
C9.3 Tier 4 Final Engines Fuel Rail Pressure Is Low While Cranking
993K Wheel Loader Power Train Transmission Oil Pump - Install
D6K2 Track-Type Tractor Systems Solenoid Valve (Pilot On/Off)
C7.1 Industrial Engine Cooling System
Supplemental Parts Information for the UAE 972H{0374, 7000} Supplemental Parts Information for the UAE 972H{0374, 7000}
993K Wheel Loader Power Train Axle Oil Cooler (Front) - Remove and Install
D6K Track-Type Tractor Daily Inspection
D6K2 Track-Type Tractor Systems General Information (Power Train System)
993K Wheel Loader Power Train Input Transfer Gears - Disassemble
993K Wheel Loader Power Train Input Transfer Gears - Assemble
D6K Track-Type Tractor Seat
2012/09/27 A New High-Temperature Tee Hose Is Available for Crankcase Breathers on 3500 Machine Engines {1317}
2013/08/21 A New High-Temperature Tee Hose Is Available for Crankcase Breathers on 3500, G3500, 3600, G3600, and C280 Engines {1317}