Quicke Q20, Техническое руководство

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5:6 2005-09
Trouble shooting
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Trouble shooting Electrodrive CDC
For installation and operation, see Operator’s Manual 12155016.
Symptom A ON/OFF lamp does not give light when P0 is activated
1. Press P4 and / or P5
a. If L1 and/or L2 gives light, exchange lamp in P0
b. If L1 and/or L2 doesn’t give light, check power source including fuses. See Wiring
diagram in Operator’s manual 12155016.
2. Check L10 and L11
a. If L10 and L11 doesn’t give light, connect connector C1 directly to C2. If then L10 and
L11 gives light, exchange CANBUS cable.
b. Disconnect seven-pole connector for loader
c. If L10 and L11 doesn’t give light, exchange control box. If that doesn’t help, see d.
d. If L10 and L11
doesn’t
give light, exchange joystick.
Symptom B No function for boom and bucket
1. Factory setting
a. Restore factory setting. See Manual 12155016.
2.Check error codes on control box and joystick
a. Check the reason for error code in error code list. Code 3+4 deactivated by pressing P5. See
Manual 12155016.
b. Connect ground cable between bracket for Joystick and chassis. See manual 12155016.
3. Check signal transmission
a. When manoeuvring the joystick in X- and Y- direction, L12, L13, L14 and L15 shall give
light for each respective direction. L16 is always giving light 30sec after start and 4sec after
manoeuvring.
4. Check CANBUS-cable
a. Connect connector C1 to C2
5. Check connector C3
a. Cleanse
b. Check connector pins in connector
6. Check servo pressure
a. Increase to 2000 rpm
b. Measure servo pressure in M (BSP 1/4”). Use equipment withstanding 0-210bar.
c. Override proportional pressure reducing valve ”C” (only for open centre) according
to”Symptom B”, 7a.
d. Check spool for servo pressure generating (only open centre)
7. Check proportional pressure reducing valves
a. Override proportional pressure reducing valves. Solenoids are activated mechanically in
hole Ø 2mm close to the connector. See manual 12155016.
b. Proportional pressure reducing valves are interchangeable
8. Check system pressure
a. Measure pressure in port P