Haulotte Group HT21RT O, Maintenance Book

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250 4000511390 E03.16 USA / GB
HT21RT O - HT21RT O SW - HT61RT O - HT21RT PRO - HT21RT PRO SW - HT61RT PRO -
HT23RTJ O - HT23RTJ O SW - HT67RTJ O - HT23RTJ PRO - HT23RTJ PRO SW - HT67RTJ PRO
E
Trouble shooting and diagram
N.B.-:- VAR[A
CTIVE
F
AILURE
] = 1
IF ONE OR MORE OF THE FOLLOWING FAILURES ARE IN ACTIVE STATE
Failure Code Description
F02 : Contactor
Emergency Pump
Chk KM120
F02.02 (D)
Safety pump relay failure while safety pump on (open circuit or short circuit)
--> KM120
• Check relay
• Check connection to ground
• Check connection to U100 ECU
• Check connection on PCB
Power Contactor
Chk KMP
F02.04 (D)
Incoherence between the emergency stop status and the presence of voltage on power
line
--> EMSTOP = 0 & (VC>5V / VD>5V)
• Check emergency stop
• Check KMP relay
• Check fuse
• Check wiring
• Check connection on PCB
Heating Relay
Chk KM160
F02.05 (D)
Prehating relay failure (open circuit or short circuit)
--> KM160
• Check relay
• Check connection to ground
• Check connection to U100 ECU
• Check connection on PCB
F03 : Relay
Horn relay
Chk KA9
F03.06 (D)
Horn relay failure (Open circuit or short circuit)
--> KA9
• Check relay
• Check connection to ground
• Check connection to U100 ECU
• Check connection on PCB
Start Relay
Chk KA2
F03.08 (D)
Start relay failure (Open circuit or short circuit)
--> KA2
• Check relay
• Check connection to ground
• Check connection to U100 ECU
• Check connection on PCB
Supply / KeySwitch
Rel
Chk KA1
F03.09 (D)
Engine supply relay failure (Open circuit or short circuit)
--> KA1
• Check relay
• Check connection to ground
• Check connection to U100 ECU
• Check connection on PCB
Accelerator Relay
Chk KA45
F03.11 (D)
Accelerator pull relay / accelerator hold output failure (Open circuit or short circuit)
1 --> KA5
2 --> AccHold
• Check relay
• Check connection to ground
• Check connection to U100 ECU
• Check connection on PCB
Generator relay
Chk KA5
F03.10 (D)
Generator relay failure while generator on (Open circuit or short circuit)
1 --> KA5
2 --> AccHold
• Check relay
• Check connection to ground
• Check connection to U100 ECU
• Check connection on PCB
F04 : Electrovalves