Zoomlion QY30V, Руководство пользователя

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D i a g n o s t i c s D i a g n o s t i c s
9.1 Diagnosis and troubleshooting 9.1 Diagnosis and troubleshooting
If failures occur during crane operation, carry out a thorough checks and anal If failures occur during crane operation, carry out a thorough checks and analysis to find ysis to find
out the causes, and remedy them. Troubleshooting for common failures is listed in the out the causes, and remedy them. Troubleshooting for common failures is listed in the
following tables for reference. following tables for reference.
For serious failures, please contact our company o For serious failures, please contact our company or distributor. r distributor.
9.2 Chassis, troubleshooting 9.2 Chassis, troubleshooting
– – Emer Emer gen gen cy cy meas meas ur ur es es
If there is no compressed air supplied when the air brake system is failed, the If there is no compressed air supplied when the air brake system is failed, the
springs installed in the brake chamber for intermediate and rear axles are actuated springs installed in the brake chamber for intermediate and rear axles are actuated
to make the vehicle in brake state. to make the vehicle in brake state.
If you want to move the vehicle compulsorily, the parking brake condition must be If you want to move the vehicle compulsorily, the parking brake condition must be
released. Detailed steps are as follows: released. Detailed steps are as follows:
 
Loosen Loosen the the nuts nuts at at the the chamber chamber tail tail with with spanner; spanner;
 
Screw Screw out out the the threaded threaded rod rod for for about about 64mm. 64mm.
Once air source is supplied or the faults are rectified, screw in the threaded Once air source is supplied or the faults are rectified, screw in the threaded
rod timely; ot rod timely; ot herwise herwise, pa , parking brake will no rking brake will no t be in t be in function. function.
Force of spring under working conditions is about 800kgf; therefore, Force of spring under working conditions is about 800kgf; therefore,
dismantling must dismantling must be carrie be carried out d out by specialists with special atte by specialists with special attention. ntion.
If the engine defects cannot be eliminated according to If the engine defects cannot be eliminated according to Maintenance and Service Maintenance and Service
Manual for QSC series Diesel Engine Manual for QSC series Diesel Engine and the following tables, send the vehicle to and the following tables, send the vehicle to
factory for repairing. factory for repairing.
Caution Caution
Warning Warning