Husqvarna HUV 4421 4421-D/DX/DXL User Manual page 36

Periodic Service Schedule
PERIODIC SERVICE SCHEDULE
REGULAR INTERVAL
Daily service by owner
Daily service by owner or trained technician
Monthly service by owner or trained
technician
Semiannual service by trained technician
only (or every 50 hours of operation,
whichever comes first)
Page 34 HUV 4421 Owner's Manual
SERVICE
Pre-Operation and Daily Safety Checklist
Performance Inspection
Engine
Fuel filters
Brakes
Engine
Tires
Transmission and differentials
General vehicle
Battery
Front wheel alignment and toe-in
Electrical wiring and connections
Brake system
See Pre-Operation and Daily Safety
Checklist on page 22.
See Performance Inspection on page 23.
Check engine oil level; add if necessary. See
Engine Oil Level Check on page 39.
Diesel vehicles: Check engine coolant; add if
necessary. See Engine Coolant Level Check
on page 46.
Diesel vehicles: Drain water from fuel filter.
See Draining Water from Fuel Filter on
page 49.
Check brake fluid; add if necessary. Check
brake pedal for proper operation. See
Performance Inspection on page 23.
Check engine circulating air passage; visually
inspect unshrouded area around engine
exhaust for grass and debris and clean if
necessary. Diesel vehicles: Check for grass
and debris around the radiator.
Check air pressure and adjust if necessary.
See Vehicle Specifications on page 56.
Check lubricant levels. Add if necessary.
See Lubrication Level Check for Front
Differential, Transmission, and Rear
Differential on page 44.
Wash engine compartment and underside of
vehicle. Do not wash engine when hot.
Clean terminals and wash dirt from casing;
check electrolyte level. Add distilled water if
necessary. See page 50.
Check and adjust if necessary. See Steering
and Front Suspension Section in the
appropriate maintenance and service
manual.
Check for tightness and damage.
Inspect master cylinder, brake lines, and hoses
for damage or leakage.
Check park brake cables for damage; replace
if necessary.
Check brake pads and discs; replace if
necessary. For brake wear-in procedure,
see Hydraulic Brakes in the Pre-Operation
and Daily Safety Checklist on page 22.
See also Brake System Section in the