Zero Turn Lawn Mowers

Walker MD Series

$31990

A favourite tractor for municipal, institutional and government customers is the MD. This is in part because of the powerful Kubota, three-cylinder, liquid-cooled diesel engine. One innovation highlight of the D21d is a self-reversing fan to keep radiator clean. The D-series shares the same basic design as the T-series and is capable of using most all of the decks, implements and attachments built for the grass collection style machines.

20.9-hp Kubota, 3 cylinder., liquid-cooled, 722cc diesel engine
Electric radiator fan with reversible, self-cleaning action
Clam-shell style body completely exposes drive train and engine
Shock-mounted instrument panel with warning lights and horn, also includes ignition switch, light switch, water temperature gauge, voltmeter and hourmeter
Remote engine air intake
Belt tightener clutch/band brake
10.0 Bushel Catcher and 10.5″ blower on GHS model
Designed for grass handling, side discharge or mulch decks up to 74″
Splined PTO drive shaft with Quick-Disconnect Coupler
4.7 gallon fuel tank
Parking brake

Engine Specifications

MD

Manufacturer/Model

Kubota D722, 3-Cylinder

Displacement

44.0 cu. In. (722cc)

HP/RPM

20.9 @ 3600

Max Torque [ft-lb (N’m) @ RPM]

34 (43.0) @ 2600

Fuel

Diesel (2-D)

Fuel Capacity

4.7 Gallons (17.8 litres)

Cooling System

Liquid, Radiator

Lubrication System

Full Pressure with Filter

Muffler

Engine Tuned (Lo Tone)

Electrical System

Battery

12 Volt (340 CCA)

Charging System

40-Ampv Automotive Alternator

Ignition

Diesel with  Glow Plug

Starter

12 Volt Electric Key and Solenoid Operated

Interlock Switch System

Ignition Lockout by Seat Switch, Transmission Neutral & Blade Clutch

Tractor Drive

Transmission/Final Drive

Dual Hydrostatic Eaton Model 7, Each wheel independently driven

Steering

Hand Lever Control, Individual Drive Wheel

Forward Speed Control

Precision Friction Lock Lever, Cruise Control with Neutral Park Position

Brake

Dynamic Braking through Hydrostatic Transmissions

Parking Brake

Mechanical Pin Lock in Transmission Gear

Ground Speed

0-5 MPH (8 Kph) Infinitely Variable (Forward/ Reverse),                                 7.0 MPH w/ (11.2 Kph) Optional Kit

Turning Radius

Zero (0°)

Mower Deck

 

Cutting Width (Inches)

36-74 (15 Decks)

Cutting Height (Inches)

1 to 4 (2.54 to 10.16 cm), 1/2” (1.27 cm) Increments

Blade

0.197 inch Stamped Steel, 10B38 Alloy, Tempered

Maximum Blade Speed

2900 RPM (16700 FPM with 22” Blade)

Blade Drive

Splined PTO Drive Shaft/2 High Speed U-Joints, Shear Pin for Shock Protection on Times Gear Drive on Deck

Blade Clutch & Brake

Manual Belt Tightener/Band Brake

Deck Suspension

Torsion-Flex Fame with Caster Wheels and Counterweight Springs

Construction

 

Frame/Body

All Welded Unitised Steel Frame/14 Gauge Steel Body Shell

Mower Deck

11 Gauge Welded Steel

GHS Catcher & Chutes

Molded cross-Linked Polyethylene (High Impact Material, UV Stabilised)

Seat

Grammer Suspension Seat with Armrests (Adjustable for Operator Weight)

Tire Size

 

Deck Caster Wheel

Standard 8 x 3 Pneumatic (4 Ply), Optional 8 x 3 Foamed Rubber

Drive

18 x 9.50-8

Rear Tire

11 x 4-5

Dimensions

 

Outside Dimensions*

44 in. (112 cm) H x 43 in. (109 cm) W x 88 in. (224 cm) L

Wheel Base (Tractor)

42-1/4 in. (102 cm)

Tread Width (Tractor)

29-3/4 in. (75 cm)

Curb Weight (Approx.)

 

SD Tractor Only

787 lbs. (357 kg)

GHS Tractor Only

932 lbs. (424 kg)

Tractor and Mower

1125 lbs. (510 kg)

Warranty

3 Years 300 Hours

 

MD21d   20.9hp Kubota Diesel Engine  $31990

MD21d-H  20.9  Kubota Diesel Engine Hi-Dump   $37890

Price for mower only, deck options additional – please enquire