Yangdong Co. Y90 Series Manuel de service télécharger pdf (Page 40)

OPERATION&MAINTENANCE MANUAL

the requirement of noise-damping, but also the resistance not exceed the

permissible value(13～20kPa）,power loss of the diesel not exceed than 3%～

4%.

4 Fan of diameter 420mm is a standby accessories for turbcharging diesel.

We recommend to use the fan whose a diameter no less than 420mm when

change it.

Heat radiation area: heat radiation area for YSD490ZL turbo charging

diesel according to the power. It shall be adjusted and checked during install

the whole engine. Air guide cover must be installed, 20mm away from the fan

in axial distance. Front end surface of the fan shall be at least 20mm away

from the radiator.

6 Fuel injection pump and adjuster of the diesel have been adjusted to the

best conditions at the leaving factory test and sealed. If the lead seal is

damaged or it is adjusted, the customers shall bear its responsibilities. If any

adjustment is required, please contact the nearest service center of our

factory to conduct for you, then seal.

7 After the diesel is started, running at idling speed of 2-3 minutes is

required before loading more capacity to ensure lubricate. Immediate loading

may lead to insufficient lubrication of bearing in the turbocharger and damage

to the bearing.

8 If customers wants to repair the diesel by itself , need to assembly or

disassembly the turbocharger, please prevent any foreign material from

entering into turbocharger and inlet or inlet system. Otherwise cause deadly

damage to the turbocharger and diesel. If we find the damage of the

turbocharger due to foreign material in the inlet and outlet system, the

customer bears the responsibility. Attention: do not take the push rod for

exhaust valve mounted outside of the bypass type turbocharger as a

carry-gripe. Do not push it without purpose, otherwise, it may affect sensitivity

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Yangdong Co. Y90 Series Manuel de service Page 40