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General malfunction and correct treatment wreck method
1 The telescopic speed of the wreck of the boom is slow and low
2 telescopic vibrations of the lifting arm a tow truck
Reason: problem Arrow slider problem ② Non-normal telescopic cylinder
3 the lifting arm of each section of the convenience store can not be compensated
Reason: fault solenoid valve fault Fault circuit fault
Elimination Method: Clean the oil filter, replace the electromagnet ② check the external line fault
4 Automatic return of the Wrecker lift arm
Reason: cylinder telescopic cylinder fault fault fault balance valve
5 The convenience store lifting mechanism does not move or move slowly .
Exclusion method: Check treatment ② Spring replacement setting
6 discontinuity of the movement of the wreck during lifting mechanism
Cause: fault Failure of the check valve
Elimination Method: cleaning, replacement
7 the load loses control when the convenience store is hanging
Cause: Val Balance Valve failure
Exclusion method: ① Disassembly cleaning
8 brakes of the lifting mechanism of the wreck are not open
Reason: ① Bypass Valve ② Internal Ventilation of Bypass Valve Seal BAD Brake Piston Seal
Exclusion method: Revision Shuttle Valve ② Shuttle Valve Service ③ Revision Brake, Replace Gasket
9 rise above the limit, the winding the bell does not ring
Cause: ① Damage related to ringing ② Damage to coil relay
Ten wreck wreck automatic lofing cylinder
Reason: ① cylinder itself fault fault fault balance valve
Exclusion Method: Inspection treatment ② Disassemble cleaning, replace damaged components
a variable vibration amplitude tow truck cylinder
a failure to retract the leg of the wreck
Cause: hydraulic Hydraulic bidirectional lock fault
Elimination Method: check, repair 2-Way Hydraulic Lock
- automatic retraction of the legs lifting weight
- no movement or slow movement while pulling up
Exclusion Method: check the repair
the temperature of the oil has risen
Exclusion method: replacement or repair must be replaced or completed with hydraulic oil
- the convenience store's hydraulic pump is not running
Cause: failure of or its operating gas path
Exclusion Method: check, repair or exchange electrical and road systems
Elimination method: should be replaced filter
Cause: Dam Joint damage ② Faulty pipe connection Damage Damage to the pipe
Exclusion Method: Replace the gasket ② tighten or replace the connector ③ replace the tube
+ bad power of the swivel joint
Cause: ① Brush and slip ring between the contact seals the wire connections Weld open
Exclusion method: repair, repair the wire