Bush Hog TH420 Operator's Manual page 51

Item
n Fuel System
H
Fuel Filter
Spark Arrestor
s Front Gearcase Oil 100 hrs.
n Clutches (drive
and driven)
n Brake Fluid
n Front Wheel
Bearings
H Idle Speed
Engine Side Cover As required
n Toe Adjustment
Frequency
100 hrs.
100 hrs.
100 hrs.
100 hrs.
200 hrs.
300 hrs.
As required
As required
49
Remarks
Check for leaks at fuel cap
lines, fuel valve, filter, pump
and carburetor.Replace
lines every two years.
Replace annually
Clean out
Check monthly; change
annually
Inspect; clean
Change every two years
Inspect; replace if necessary
Adjust
Drain moisture after driving
in water.
Periodic inspection, adjust
when parts are replaced