Yuchai YC6A Series, Operation & Maintenance Manual

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fuel filter for clogging; replace the rotary element.
⑦ 喷油泵柱塞磨损过大
Excessive wear of EUP plunger
检查、更换。
Check and replace
⑧ 传感器坏
Sensor fault
检查、更换
Check and replace
⑨ 增压补偿管损坏漏气
Turbocharged supplement pipe
broken and qir leak
更换。
Replace
⑩ 喷油器雾化不良
Poor atomization of fuel injector
检查喷油压力、清理积碳、调整及修理。
Check injection fuel pressure, clean carbon deposit,
adjust and repair.
⑾
配气相位不对
Incorrect air distribution phase
检查并调整配气定时及气门间隙。
Check and adjust air distribution timing and valve
clearance
⑿
供油提前角提前或迟后
Advanced or late of fuel supply
advanced angle
检查并调整。
Check and adjust
⒀
调速器高速调整过低
High speed of the governor too
low
检查并调整。
Check and adjust
⒁
气缸垫漏气
Air leak of cylinder gasket
按规定力矩、顺序拧紧气缸盖螺栓或更换气缸垫。
Tighten the cylinder head bolt to specified torque or
replace cylinder gasket
⒂
气门密封不良
Poor sealing of the valve
研磨或更换重新研磨。
Rub or replace
发动机过热冷却液温度过高
Engine overheating too high
coolant temperature
检查并修理散热器、调温器，调整风扇皮带张紧力。
Check and repair radiator and thermostat; adjust the
fan belt tension.
活塞环磨损过大，断裂
Piston ring is worn too much;
broken
更换
Replace it with a new one