Gas Pressure Regulator - Check
检查气体压力调节器前面和后面的燃气压力。 表 1 列出了燃气压力调节器所需的燃气压力。
Show/hide table
| 通往燃气压力调节器的燃气压力规格 | |
| 燃气系统 | 压力 |
| 供自然吸气式发动机使用的低压燃气 | 10.3 到 34 ± 2 kPa (1.50 到 5 ± 0.25 psi) |
| 供涡轮增压式发动机使用的高压燃气 | 172 到 207 ± 7 kPa (25 到 30 ± 1 psi) |
供给到空燃混合器的燃气压力
燃气压力调节器保持空气和供给到空燃混合器的燃气之间的压差。 该压差设定后，燃气压力调节器将对空气压力的变化作出反应，保持此压差。
使用水柱气压计来测量压差。 在发动机运行在高怠速转速时进行测量。 施加负载后，燃气压力通常将降低大约 0.1 到 0.25 kPa（0.50 到 1 英寸 H2O 柱）。 如果气体压力调节器的性能不稳定，则气体压力调节器可能需要维修。
天然气
将燃气供给压力设置为高于环境气体压力 1 到 1.2 kPa (4 到 4.5 inH2O)的最大值。
丙烷
将燃气供给压力设置为低于环境气体压力 −0.37 ± −0.06 kPa (−1.5 ±0.250 inH2O)。 请参阅专门说明书, REHS0371, "G3300 和 G 3400 发动机的安装和初始起动步骤"。
Caterpillar Information System:
3412E Petroleum Engine System Configuration Parameters
C15 and C18 Petrolem Generator Set Engines Switch Circuits - Test
C-15 Petroleum Engine Turbocharger
3408E and 3412E Engines for Caterpillar Built Machines Engine Oil Temperature Sensor - If Equipped
C9 On-Highway Truck Engines Modulating Valve - Remove and Install
Center Steering Arm Straight Bore Inspection and Salvage Procedure for Off-Highway Trucks {4305} Center Steering Arm Straight Bore Inspection and Salvage Procedure for Off-Highway Trucks {4305}
C7 On-Highway Engine Modulating Valve - Remove and Install
C13, C15, and C18 Generator Set Engines Injector Solenoid Circuit - Test
3412E Engine for Caterpillar Built Machines Replacing the ECM
C-10 Petroleum Engine Reference Material
C13, C15, and C18 Generator Set Engines Engine Temperature Sensor Open or Short Circuit - Test
C-10 Petroleum Engine Refill Capacities and Recommendations
C13, C15, and C18 Generator Set Engines Ether Injection System - Test
G3600 Engines Crankshaft Vibration Damper - Inspect
3126B Petroleum Engine Engine Crankcase Pressure (Blowby) - Test
C18 Generator set and C18 Marine Engines Fuel Transfer Pump - Remove
C18 Generator set and C18 Marine Engines Fuel Transfer Pump - Install
3126B Petroleum Engine Belt Tension Chart
G3300 Engines Engine - Clean
G3520C and G3520E Engines Thermostatic Valve
G3600 Engines Cooling System Coolant Level - Check
2004/03/01 Listing of Deutsch Connector Components {7553}
C18 Petroleum Generator Sets Engine Description
G3520C and G3520E Engines Thermostatic Valve