Grasshopper 729 BT

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Take advantage of maximum productivity and versatility with the Grasshopper Model 729BT riding lawn mower. Out front mowing decks reach under low-hanging obstacles to reduce string trimming needs. Take advantage of zero-turn maneuverability and powerful performance that meets the demands of rugged daily use, while providing superior operator comfort. Use the PowerFold® deck lift/electric height adjustment feature to raise the deck for cleaning the underside. Cutting decks also remove to add a variety of turf renovation and snow removal implements.


Specs

ENGINE

Type/Horsepower/Cylinders
B&S Vanguard Big Block, V-Twin
Displacement
54.7 cu. in. (896 cc)
Lubrication System
Pressure Lube/Filter
Crankshaft
Horizontal
Cooling System
Air
Fuel
Gasoline - unleaded
Fuel Capacity
7.2 U.S. Gal. (27.3 l)
Optional Fuel Capacity
NA
Air Cleaner
Heavy-duty, remote mounted, cyclonic, dual element air filtration.
Muffler
Ultra quiet, single, industrial type

DURAMAX® DECKS

DECK
DuraMax
Mulching Package #
504567(52), 504569(61), 504571(72)
DURAMAX® DECK SIZE
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
*
– 61" Deck
*
– 72" Deck
*
CUTTING HEIGHT RANGE
1.25 to 5.0 in. (3.2 cm to 12.7 cm)
CONSTRUCTION (Robotic-welded steel)
Tubular 2.25 in. x 4 in. boxed members with 0.25 in. gussets. Formed double thickness hardened steel (0.269 in. 7.6% thicker than 0.25 in. (6.35 mm)) truss spindle plane and (3) Sentry™ spindles and a triple-strength upper deck, 1/2 inch thick in stress zones. Geometrically engineered design with 7 gauge skirts to withstand the brunt of commercial mowing.
BLADES (Tempered, alloy steel)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
(3) 18 in. (45.7 cm)
– 61" Deck
(3) 21 in. (53.3 cm)
– 72" Deck
(3) 25 in. (63.5 cm)
SPINDLE ASSEMBLIES
Sentry™ Spindle System, 2.5 cm (approx. 1 in.) O.D. shaft. Double bearings greasable from top of deck. Spindle head designed to eliminate fiber wrap. Spindle cones shield housing and lower bearings from fiber wrap and dirt ingestion.
SPINDLE HOUSINGS
8 in. (20.3 cm)-diameter machined aluminum housing with 6-bolt pattern.
BLADE DRIVE
Maintenance-free gearbox with single Kevlar V-belt and idler arm tensioning.
TRIMABILITY (Outside of std. tire to left trim side)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
1.0 in. (2.5 cm)***
– 61" Deck
8.5 in. (21.6 cm)***
– 72" Deck
13.75 in. (34.9 cm)***

STARTER & ELECTRICAL SYSTEM

Battery (maintenance-free)
12 Volt
Starter
Solenoid shift
Ignition
Breakerless
Interlock System
Prevents engine start when PTO clutch is engaged or steering levers are in drive position. Allows operator dismount without engine shutdown only when PTO is disengaged and steering levers are locked in neutral.

ULTIMATE OPERATOR STATION

Seat
Iso-mounted Premium Comfort Seat. Features include a high-back, deep-cushioned, foam-padded Cordura®-covered, padded arm rests, padded backrest with lumbar support, coil-spring suspension and embroidered Grasshopper logo on seat back.
Suspension
AntiVibe PowerPlatform™ with iso-mounted seat and footrest
Console-mounted Instruments
Low engine oil pressure and parking brake warning lights, digital hour meter, work lights, ignition and push/pull PTO switches. Choke integrated with throttle lever.
Work Lights
Standard - LED
Hour Meter
Standard

TRANSMISSION & STEERING

Type
T6® hydrostatic transmission with tandem 16 cc Parker pumps-in-reservoir, in-line CoolFan™ for cooling efficiency, design-matched Parker high-torque wheel motors. AntiVibe Power Platform® reduces vibration for the operator.
Filtration/Hydro Fluid
Integrated, replaceable, high-efficiency, fine-particle filter / Grasshopper CoolTemp Hydro-Max™ fluid withstands high and low temperature extremes for 1,000 hour change intervals.
Speed
0 - 10.0 mph (0 - 16.1 kph) forward 0 - 6.0 mph (0 - 9.7 kph) reverse
Turning Radius
True zero degree, turns within own length with counter-rotating, independently powered drive wheels. Seat is pivot point.
Steering
One- or two-hand operation with adjustable HydraSmooth™ QuikAjust Tilt™ dual levers with 9-inch adjustment for a custom fit that automatically return to neutral from either forward or reverse position.
Brakes
Dynamic braking through hydrostatic transmission.
Parking Brake
Disc parking brakes, one for each drive wheel.
Attachment Drive
Telescoping PTO shaft with two high-speed U-joints, Quik-D-Tatch® coupler and heavy-duty electric Mag Stop® blade clutch/brake.

TIRE SIZES

MidMount
Drive Wheels - Standard (4-ply rated)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
NA
– 61" Deck
NA
– 72" Deck
NA
Drive Wheels – Optional (4-ply rated)
NA
Front Wheels – All Models
NA
FrontMount
Drive Wheels – Standard (4-ply rated)
22x11.00x10 bar tread, high flotation, 4-ply rated
Drive Wheels – Optional (4-ply rated)
22 x 11.00-10, turf tread, 4-ply rated
22 x 11-12 Michelin® X® Tweel® airless turf tread
Single Tail Wheel
13x6.50x6 rib tread, pneumatic (2)
Wide Stance Single Fork Tail Wheel
NA
Deck Tires (4-ply rated)
– 41" Deck
NA
– 42" Deck
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
9x3.50x4 (flat proof), 4-ply rated
– 61" Deck
11 x 4.00-5 (flat-proof), 4-ply rated
– 72" Deck
13x6.50x6 rib tread, pneumatic, 4-ply rated

DIMENSIONS

Height (Seat Back)
47.0 in. (119.4 cm)
Height (Seat Cushion)
30.5 in. (77.5 cm)
Height (ROPS)
69.0 in. (175.3 cm)
Length (frontmount w/ DuraMax® Deck - Mowing Position)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
105.5 in. (268.0 cm)
– 61" Deck
107.5 in. (273.0 cm)
– 72" Deck
117.5 in. (298.5 cm)
Length (FrontMount Power Unit + DuraMax® Deck - Folded Up)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
88.5 in. (224.8 cm)
– 61" Deck
91.0 in. (231.1 cm)
– 72" Deck
104.0 in. (264.2 cm)
Deck Width (Side Discharge)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
65.5 in. (166.5 cm)
– 61" Deck
74.5 in. (189.2 cm)
– 72" Deck
85.5 in. (227.3 cm)
Deck Width (Mulch*)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
53.5 in.* (135.9 cm)
– 61" Deck
62.5 in.* (158.8 cm)
– 72" Deck
73.5 in.* (186.7 cm)
FrontMount PowerUnit Only (Width/Length)
50.0 in. (127.0 cm)/67.0 in. (170.2 cm)
FrontMount Power Unit (Wheelbase)
51.5 in. (130.8 cm)

WEIGHT

(Uncrated)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
1300 lbs. (589.7 kg)
– 61" Deck
1350 lbs. (612.3 kg)
– 72" Deck
1475 lbs. (669.0 kg)
FrontMount Power Unit Only (uncrated)
930 lbs. (421.8 kg)
FrontMount Deck Only - Side Discharge (uncrated)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
370 lbs. (167.8 kg)
– 61" Deck
420 lbs. (190.5 kg)
– 72" Deck
545 lbs. (247.2 kg)
Mulching Package
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
29 lbs. (13.2 kg)
– 61" Deck
36 lbs. (16.3 kg)
– 72" Deck
44 lbs. (20.0 kg)

All specifications and information displayed on this Web site are subject to change without notice.