
120 SEBU8213-04
Maintenance Section
Hydraulic System Oil - Change
Note: Mini circ
uit breakers protect the electrical
system from damage that is caused by overloaded
circuits. Replace the mini circuit breakers if the
blower fan mot
or or condenser fans are intermittent
or inoperable. Repair the circuit or replace the
component, if necessary.
On a machine that is equipped for the fire plow, three
15 amp circuit breakers protect the lighting electrical
circuit.
Condenser fan 2 – 20 Amp mini circuit
breaker
Dome light (Radio) – 10 Amp
Radio – 10
Amp
Lighting switches – 10 Amp
Fuse Block 2
Circuit breaker – 30 Amp (spare)
ECM1 – 15 Amp machine ECM
Indicators on the dash – 15 Amp
Fan – 15 Amp
Heating and air conditioning blower
fan – 30 Amp mini circuit breaker
Engine stop – 15Amp(engineelectrical
system)
Rear working lights and front working
lights
2
– 20 Amp
Horn – 10 Amp
Raise/lower switch (Heat switch) – 20
Amp
Power port – 10 Amp
Dash light
s and left front working light
1
– 20 Amp
Key start switch – 10 Amp
Dozer blade – Three15Ampfuses(Grade
Control)
The following power port fuse is instead of one for
the dozer blade, if equipped.
Power port – 15 Amp (fire plow)
i03323501
Hydraulic System Oil - Change
SMCS Code: 5050
Note: S·O·S oil analysis must be performed at every
500 service hours or 3 months in order to extend the
hydraulic oil change interval. The normal hydraulic
oil change interval is every 2000 service hours or 1
year. By performing S·O·S oil analysis, the hydraulic
oil change interval may be extended to 4000 service
hours or 2 years. If S·O·S oil analysis is not available,
the hydraulic oil change interval must remain at every
2000 service hours or 1 year.