Maintenance
SY50U Excavator OMM
5-26
Operation and Maintenance Manual — 0120
SANY
FUSES
If an electrical component fails, check the fuse first. See “Fuse Access Door” on page
* The four fuses below the fuse puller (1) are spare fuses.
NOTICE!
•
A fuse should be replaced if it is blown, corroded, or becomes loose in the fuse block.
•
Before replacing a fuse, make sure the key switch is in the OFF position and the batteries
are disconnected.
•
Always replace a fuse with one of the same rated voltage/amperage. Never replace a fuse
with one of a higher amperage which could cause damage to the machine or cause the
machine to operate improperly.
Fuse
Amperage
Circuit
F1
25A
Starting
F2
10A
Battery charging
F3
15A
Cab dome light, horn, and
access light
F4
25A
Work light
F5
15A
Washer, wiper, and radio
F6
5A
HVAC control panel
F7
10A
Global Positioning System
(GPS)
F8
20A
HVAC system fan
F9
10A
Power outlet (12V)
F10
10A
A/C compressor
F11
25A
Monitor controller
F12
25A
Fuel pump
F13
20A
Reserve
F14
15A
Reserve
K3
12V/35A
Starting
K5
12V/35A
Horn
K6
12V/35A
Work lights
K7
12V/35A
Cold weather start
K8
12V/35A
Monitor power down
K9
12V/35A
Spare
K12
12V/35A
HVAC system fan
K13
12V/35A
A/C compressor
Fig. 5-15
0002998
K13
K5
K7
K8
K6
K3
K9
K12
1