HELI CQD16X1, Operation & Service Manual

Page: 94 / 105

90
227 NO CAN MSG.14
No
communication
to pump
controller
Check the connection between
3A11\3A12 and 2A20\2A21
231 DRV.SHRT A
Short circuit of
solenoid valve’s
1-8 drive
terminal
Change controller
232
DRV.OPEN A
Open circuit of
solenoid valve’s
1-8 drive
terminal
Change controller
243 COIL OPEN A
Open circuit of
solenoid valve’s
coil Check if the electromagnetic valve
has open circuit or if the harness
or connectors loose.
245 COIL OPEN EVP9
Open circuit of
front wheel
electromagnetic
brake’s coil
Check if the electromagnetic or
outskirt harness has open circuit.
246 DRV. SHRT EVP9
Short circuit of
front wheel
electromagnetic
brake’s drive
terminal
Check if the resistance between
front wheel electromagnetic drive
terminal B23 and B-is small or if
there is short circuit, change
controller.
247
DRV. OPEN EVP9
Open circuit of
front wheel
electromagnetic
brake’s drive
terminal
Change controller
4.9.4 Routine maintenance
Check the wear and connect condition of the contactor point. Check it every
three months.
Check the pedal and thumb switch. Make sure there is no resistance between
two contactors with a proper universal electric meter when turning off .or on switches,
make sure there is clear sound. Check the thumb switch every three months.
Check the cables of the battery, chopper and motor. Make sure they are insulate
and well connected. Check the main cables every three months.