Walker Model D21d

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D21d Model Overview

The D21d is a premium commercial GHS mower with impressive industrial power and agile, premium-quality mowing. Featuring the Kubota D722 liquid cooled, diesel engine, and a standard Grammer suspension seat, the D21d is designed for all day comfort and long machine life.

Type: Collection
Power: 20.9 HP
Engine: Kubota Diesel
Ideal Application: 
Commercial, Municipal and Institutional Properties
Key Attributes: Efficient, High Torque, Versatile
Standard Options: 18 x 9.5-8 Turf Tire, Suspension Seat

Decks: 7 Collection, 7 Discharge, 5 Mulching
Popular Add-ons:
Implement Hitch
Loader Bucket

 
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Specs

Engine

Manufacturer: Kubota

Model: D722

Displacement: 719 cc (43.9 cu. in.)

Max Power: 20.9 HP @ 3600 RPM

Max Torque: 34 ft-lbs

Cooling System: Liquid & radiator

Cooling Fan: Electric radiator cooling fan with reversible self-cleaning action

Fuel: Diesel (2-D)

Fuel Capacity: 4.7 gal (17.8 liter)


Electrical

Battery: 12 Volt, 41AH, 340 CCA (Interstate U1-SP40)

Charging System: 40 Amp Automotive Alternator

Charging Output: 40 Amp DC (Regulated)


Transmission

Manufacturer/Model: Dual Hydrostatic Eaton Model 7 transmission with ductile cast iron final drive, Each Wheel Independently Driven

Steering: Hand Lever Control, Individual Wheel

Forward Speed Control: Precision Friction Lock Lever, Cruise Control, with Neutral-Park Position

Parking Brake: Mechanical Pin Lock in Transmission Gear

Forward MPH (km/h): 0-6.5 MPH (0-10.5 km/h) Infinitely Variable

Neutral: Transmission Release by Manual Dump Valve


Blade Drive

PTO Shaft: Quick Disconnect Splined Shaft with Two (2) High-Speed U-Joints

Blade Drive Clutch and Brake: Manual Belt Tightener Clutch and Band Brake [Stops Blades within Five (5) Seconds of Disengagement]


Grass Handling

Blower: 10.5 in. Diameter, Three-Blade Paddle Wheel

Max. Blower RPM: 4000 RPM

Grass Catcher Capacity: 93 Gal / 10.0 Bu / 352 L

Full Signal: Grass-Pak® full signal alerts operator when catcher box is full

Powerfil®: Oscillating Delivery Spout Driven by 12 Volt Electric Gearmotor Spreads Material throughout Interior of Catcher @ 35 Cycles/Min


Deck

Recommended Cut Width: Collection: 36 to 52 in. (91 to 132 cm), Side Discharge 36 to 74 in. (91 to 188 cm) Mulch 36 to 52 in. (91 to 132 cm)

Cutting Height: 1 to 4 in (2.5 to 10 cm) or 1.5 to 4.5 in (4 to 11.5 cm) (DS52 and DS62 Belt Driven SD Decks Only)

Deck Suspension: Independent Torsion-Flex Frame with Caster Wheels and Counterweight Springs


Tires

Drive: 18 x 9.50-8 (Pneumatic 4-Ply, Standard)

Tailwheel: 13 x 5.00-6 (pneumatic 4-ply, standard dual) 13 x 8.00-6 (pneumatic 4-ply, optional single)

Deck Caster: 8 x 3.00-4 Foamed Rubber, All decks except DS52, DS62, DS74 8 x 3.00-4 Pneumatic 4-Ply (Optional)


Size & Weight

LENGTH

  • Tractor Only: 64.5 in (164 cm)
  • Tractor with C48 deck: 93 in (236 cm)
  • Tractor with deck tilted: 77 in (196 cm)
  • Tractor wheel base: 42.25 in (107 cm)

WIDTH

  • Tractor Only (Outside Tire): 39 in (99 cm)
  • Tractor with C48 deck: 49.25 in (125 cm)

HEIGHT

  • Tractor: 50 in (127 cm)

WEIGHT

  • Tractor Only: 1,000 lbs (454 kg)
  • Tractor with C48 deck: 1,219 lbs (553 kg)