WD615欧Ⅱ系列柴油机维修保养手册
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Maintenance Manual for WD615 Series EuroⅡDiesel Engine
9.4燃油消耗过大
Fuel consumption is too high
1.进气堵管
Air intake clogged (air cleaner choked)
检查空滤器、进气管路，清理之
Check air cleaner and air intake pipe, then
clean them
2.排气背压过高
Exhaust back pressure is too high
检查排气管道及制动阀，清理之
Check exhaust pipe and brake valve, then clean
them
3.燃油质量差
Poor quality of fuel
按规定更换燃油
Renew the fuel according to requirements
4.燃油管路堵塞
Fuel line choked
检查并修复之
Check and repair
5.燃油管路漏油
Fuel line leaked
检查并修复之
Check and repair
6.喷油器物化不良
Poor atomizing
检查并调整或修复之
Check, adjust and repair
7.配气或供油定时不对
Incorrect timing of valve gear or fuel delivery
按规定调整气门间隙及供油提前角
Adjust valve clearance and injection ad-vance
angle according to requirements
8.缸垫漏气
Leakage in cylinder gasket
检查压缩压力
Check compressed pressure
9.轴瓦间隙过大，发动机需大修
The clearance of main bearing shell is too large
Engine need to overhaul
检查及大修
Check and overhaul
10.活塞涨缸
Piston scuffing
更换气缸套、活塞及活塞环
Replace cylinder liner, piston and piston ring
11.增压系统压力不足
Insufficient pressure in supercharging system
检查排除管路和连接处泄漏
Check and block up the leakage of pipeline
12.增压器工作失常
Faults in turbocharger
检查并更换
Check and replace
13.中冷器损坏或漏气
Intercooler damaged or leaked
更换或修补
Replace or repair
