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MACHINE CONTROLS
SY500H Excavator OMM
Fuse and Relay Locations
R10
R13
R15
R14
R11
R12
R16
F12
F7
F27
F22
F20
F17
F16
F18
F19
F26
F6
F24
F23
F25
F21
R5
R1
R3
R6
R2
R4
R7
R9
R8
F14
F28
F5
F11
F9
F13
F3
F2
F10
F4
F1
F8
F15
0005100
Figure 3-43
Fuses
Relays
F1 – Charging indicator fuse (10A)
F17 – Starter relay (20A)
R1 – Cap lamp relay (24V/20A)
F2 – Monitor (10A)
F18 – Emergency system (10A)
R2 – Travel alarm relay (24V/5A)
F3 – Radio (10A)
F19 – DEF relay coil (5A)
R3 – Work light relay (24V/20A)
F4 – 12V Power (10A)
F20 – DEF relay breaker (10A)
R4 – Pilot valve relay (24V/10A)
F5 – Wiper/washer (5A)
F21 – DEF pump motor (10A)
R5 – Power-off relay (24V/10A)
F6 – A/C (20A)
F22 – DEF heater relay (15A)
R6 – Overload alarm relay (24V/5A)
F7 – HCU power (20A)
F23 – ECU power fuse (30A)
R7 – Horn relay (24V/15A)
F8 – Fuel (10A)
F24 – Not used (10A)
R8 – Alarm lamp relay (24V/10A)
F9 – Power-off delay (10A)
F25 – Starter circuit (20A)
R9 – Starter relay (24V/20A)
F10 – Travel alarm (5A)
F26 – Cab (5A)
R10 – Starter cutoff relay (24V/20A)
F11 – Work light (20A)
F27 – Not used (10A)
R11 – Emergency system 1 relay (24V/10A)
F12 – Pilot valve (10A)
F28 – Not used (10A)
R12 – Emergency system 2 relay (24V/10A)
F13 – Cap lamp (20A)
R13 – DEF sensor relay (24V/10A)
F14 – Horn (15A)
R14 – DEF pump motor relay (24V/10A)
F15 – Overload alarm (5A)
R15 – DEF heater relay (24V/15A)
F16 – Alarm lamp (10A)
R16 – Fuel relay (24V/10A)
Summary of Contents for SY500H
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