Sinoboom AB18EJ - Page 101

REPAIR PROCEDURES
AB18EJ&18HJ Maintenance Manual 6-19 © Oct 2020
Fault
Code
Description
Cause Check
39
Jib up solenoid
valve fault
Jib up solenoid valve fault Check the wiring of jib up solonoid valve
40
Jib down solenoid
valve fault
Jib down solenoid valve fault
Check the wiring of jib down solonoid valve
41
Function enable
valve fault
Function enable valve fault
Check the wiring of function enable valve
42
Main boom anti-fall
valve fault
Main boom anti-fall valve fault
Check the wiring of main boom anti-fall valve
43
Drive enable valve
fault
Drive enable valve fault
Check the wiring of drive enable valve
44 Brake valve fault Brake valve fault
Check the wiring of drive enable valve
45
Slewing enable
valve fault
Slewing enable valve fault Check the wiring of slewing enable valve
46
Front pump
discharge valve
fault
Front pump discharge valve
fault
Check the wiring of front pump discharge valve
47
Rear pump
discharge valve
fault
Rear pump discharge valve
fault
Check the wiring of rear pump discharge valve
48
Electrically
proportional relief
valve fault
Electrically proportional relief
valve fault
Check the wiring of electrically proportional relief
valve
49
Secondary boom
angle sensor
comparison error
Secondary boom angle
sensor comparison error
Check whether the secondary boom angle
sensor is correctly installed
50
Secondary boom
angle sensor fault
Secondary boom angle
sensor fault
Check the wiring of secondary boom angle
sensor
51
Main boom angle
sensor comparison
error
Main boom angle sensor
comparison error
Check whether the main boom angle sensor is
correctly installed
52
Main boom angle
sensor fault
Main boom angle sensor fault Check the wiring of main boom angle sensor
53
Secondary boom
relative angle
sensor comparison
error
Secondary boom relative
angle sensor comparison
error
Check whether the secondary boom relatvie
angle sensor is correctly installed
54
Secondary boom
relative angle
sensor fault
Secondary boom relative
angle sensor fault
Check the wiring of secondary boom relatvie
angle sensor
55
Main boom relative
angle sensor
comparison error
Main boom relative angle
sensor comparison error
Check whether the main boom relative angle
sensor is correctly installed
56
Main boom relative
angle sensor fault
Main boom relative angle
sensor fault
Check the wiring of main boom relative angle
sensor
57
Low battery level
alarm
Low battery level alarm Check whether the battery voltage is too low