Bush Hog TH420 Operator's Manual page 50

Item
Engine Cylinder
Head/Cylinderr
Base Fasteners
s Engine Oil-Level
s Engine Oil -
H Change
s Oil Filter
H
H Engine breather
hose
Carburetor Float
Bowl
n Throttle Cable
H Choke (Enricher)
Cable
Shift Linkage
n Drive Belt
n Steering
s Front Suspension
s Rear Suspension
Engine Mounts
n Valve Clearance
H
H Spark Plug
n Ignition Timing
H
n Front Hub Bearings 100 hrs
Frequency
25 hrs.
25 hrs.
100 hrs.
100 hrs.
100 hrs.
50 hrs.
50 hrs.
50 hrs.
50 hrs.
50 hrs.
50 hrs.
50 hrs.
50 hrs.
300 hrs.
300 hrs.
100 hrs.
100 hrs.
48
Remarks
Re-torque required at first
service only
Check level daily; break-in
service at 25 hrs.
Change oil at 100 hours;
more often in cold weather
use
Replace with oil change
Inspect
Drain bowl periodically and
prior to storage
Inspect; adjust, lubricate,
replace if necessary
Inspect;adjust, replace if
necessary
Inspect; adjust
Inspect; adjust, replace if
necessary
Inspect; lubricate
Inspect; lubricate, tighten
Fasteners
Inspect; tighten fsteners
Inspect
Inspect; adjust
Inspect; replace if necessary
Inspect and adjust as needed
Check at 100 hrs. and
replace as needed