Hustler Turf 4420 Lawn Mower User Manual


 
Operating RPM – 3000 (max. load), 3200 (no load)
Starter – 12-volt Ford, external solenoid.
Charging System – 12-volt, negative ground, 55 amp,
belt driven alternator.
Crankcase Capacity – 3.5 U.S. qts. (3.25 l) with filter
change.
Fuel – Unleaded gasoline.
Common specifications
Traction drive system
Type – Dual hydrostatic, closed loop system.
Pumps – Tandem hydrostatic pump. Variable
displacement, axial piston type. Each pump powers one
drive wheel motor.
Pump Drive – V-belt drive from engine crankshaft with
manual clutch.
Final Drive – Direct drive, high torque wheel motors.
One for each drive wheel.
Filter – 10 micron, pressure side, replaceable spin-on
type.
Ground Speed – 0-10 mph (0-16.1 kph) forward, 0-6
mph (0-9.7 kph) reverse, infinitely variable.
Steering – One hand, Tee lever steering provides
independent control of each of two drive wheels. Speed,
turning, forward, reverse, and braking are all controlled
through the dual hydrostatic transmissions.
Turning Radius – True 0 degrees. Turns within its own
length. Counter-rotating, independently powered drive
wheels provide maximum in maneuverability.
Brakes
Service – Independent, dynamic braking through
hydrostatic transmissions.
Parking – Positive, automotive type drum and shoe.
Hand operated lock-over-center control lever on left side of
operator. Adjustable tension.
Frame Constructed of 3/16 in. (.5 cm) welded steel and
2 in. x 2 in. (5 cm x 5 cm) steel torsion tubes with 1/8 in. and
3/16 in. (.3 cm and .5 cm) wall thickness.
Attachment drive PTO shaft, splined, 2-high speed
U-joints. PTO shaft speed, 3000 RPM.
Attachment clutch Electromagnetic
Attachment lift Hydraulic cylinder with hand lever
control.
Attachment tool bar Two-point tool bar, quick
disconnect type. Removing 2 pins and flotation springs
releases any attachment. Constructed of 1/4 in. x 1/2 in. (.6
cm x 1.3 cm) welded steel.
Auxiliary hydraulics Auxiliary hydraulic valve
with manual control lever and quick-couplers.
Tires Standard rear tires - 13 x 6.50-6 with rib tread.
Three drive tire options:
Regular – 23 x 8.50-12 with turf tread.
Wide – 23 x 10.50-12 with turf tread.
Wide – 23 x 10.50-12 with bar tread.
Capacities
Fuel tank – 11 U.S. gal. (41.6 l)
Hydraulic oil system – 3.5 U.S. gal. (13.2 l)
Cooling system
3.25 U.S. gal (12.3 l) (models 4300 & 4500)
2.50 U.S. gal (9.5 l) (model 4200)
2.75 U.S. gal (10.4 l) (model 4400/4420/4600)
Dimensions
Length – 100 in. (254 cm)
Width – 50 in. (128 cm)
Height – 50.5 in. (128 cm)
Weight – 1500 lbs. (681 kg)
Seats Three seat options:
Regular padded, backrest type with molded vinyl.
Heavy-duty, adjustable suspension seat with armrests and
fore and aft adjustment.
Safety features Safety interlock system with seat
switch connected to neutral lock and PTO switches.
Steering levers must be locked in neutral and PTO switch
must be off before engine will start.
Controls Hand operated throttle, ignition switch, PTO
clutch switch, pump clutch lever, parking brake lever,
attachment lift lever, and auxiliary valve lever. Ignition
switch controls solenoid activated engine shut-off and glow
plugs (models 4200/4400/4420/4600 only). Choke lever
(models 4300 & 4500 only).
Indicators Hour meter, glow plug indicator light*, oil
pressure warning light, engine heat warning light and
alternator warning light. Audible signal for high engine
temperature or low engine oil pressure.
*Model 4200/4400/4420/4600 only.
728444 Rev. 11/02
9-2