Haulotte HT23RTJ O, Maintenance Book

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489 4001055250 E 10.21 USA / GB
HT23RTJ O - HT23RTJ O SW - HT67RTJ O - HT23RTJ PRO - HT23RTJ PRO SW - HT67RTJ PRO
E
- Trouble shooting and diagram
Failures N Dec Bit Description
Electrovalves
• For each failure, check the internal code.
For failures about digital electro valves controlled by the U104 ECU (platform slave ECU) :
• The detected failures are "open circuit" or "short circuit", check the harness between the ECU and the hydraulic block controlling
the movement, check the valves.
For failures about proportional or digital electro valves controlled by U106 ECU (turret master ECU) :
• The detected failures are open circuit ( OC), short-circuit to VBAT (SC+) , short-circuit to GROUND ( SC-), low current ( LC) and
power supply error ( PSE)
• First check the type of failure by reading the status of the output in the menu "INPUTS-OUTPUTS => DIGITAL OUTPUTS /
ANALOGUE OUTPUTS".
If OC/SC+/SC-/LC :
• check harness, check there is no misconnection between signal and ground supply or power supply.
If PSE :
• Check the supplies are well connected : 12VD1 (1B.18), 12VD2 (2A.08), 12VD3 (2B.02), 12VD4 (3A.01), 12VF1 (1B.32), 12VF2
(2A.07), 12VF4 (3A.07).
Failures are acknowledged if :
• Movement set point corresponding to the failing electro valve is neutral.
• AND movement control corresponding to the failing electro valve is neutral.
AND electrovalve failure state corresponds to the "no failure" flag (generally state =OK, or for safety electrovalve state =OC)
F04.01
Steering
YV901 / YV150L /
YV150R
D
1 b0 Proportional output's failure : Steering movement --> YV902=FAIL
2 b1 Digital output's failure : Left steering movement --> YV150L=FAIL
4 b2 Digital output's failure : Right steering movement --> YV150R=FAIL
F04.02
Compensation
YV902 / YV720U /
YV720D
D
1 b0 Proportional output's failure : Basket level movement --> YV901=FAIL
2 b1 Digital output's failure : Platform level raise movement --> YV720U=FAIL
4 b2 Digital output's failure : Platform level descent movement --> YV720D=FAIL
F04.03
Turret rotation
YV250L / YV250R /
YV805 / GND5
D
1 b0 Proportional output's failure : Leftwards turntable rotate movement --> YV250L=FAIL
2 b1 Digital output's failure : Rightwards turntable rotate movement --> YV250R=FAIL
4 b2
Digital output's failure : Safety turntable rotate movement --> YV805=FAIL
Failure is detected only during turntable or boom descent movement ( GND5 is the
common ground supply for YV805 and YV807 electrovalves). Otherwise, YV805 is
seen as open circuit.
8 b3
Digital output's failure : Safety ground turntable rotate movement --> GND5=FAIL
Failure is detected only during turntable or boom descent movement ( GND5 is the
common ground supply for YV805 and YV807 electrovalves). Otherwise, GND5 is
seen as open circuit.