Husqvarna 4421-D Owner's Manual page 37

PERIODIC SERVICE SCHEDULE
REGULAR INTERVAL
Annual service by trained technician only
(or every 100 hours of operation, whichever
comes first)
WARNING
• If any problems are found during scheduled inspection or service, do not operate vehicle until repairs
are made. Failure to make necessary repairs could result in fire, property damage, severe personal
injury, or death.
SERVICE
Engine
Radiator
Engine air intake system
General vehicle
Fuel filters
Periodic Service Schedule
appropriate maintenance and service
manual.
Check for leaks around gaskets, fill plugs, etc.
Kawasaki gasoline engines: Adjust valve
clearance. See Kawasaki FH680D Service
Manual.
Gasoline vehicles: Inspect, clean, and
gap spark plug; replace if necessary. See
authorized dealer or trained technician for
service.
Diesel vehicles: Check the v-belt for proper
tension or damage. Adjust or replace if
necessary.
Diesel vehicles: Change engine coolant. See
Radiator and Cooling System Section in
the maintenance and service manual.
Diesel vehicles: Check clamps for tightness;
check hoses for cracks. Replace if necessary.
Replace air filter element. See Air Intake
System on page 47.
Check clamps for tightness; check hose for
cracks.
Check for loose hardware and tighten if
necessary.
Replace. Dispose of used filters properly.
2008 HUV 4421 Owner's Manual Page 35