Owners of high-end properties are a particular bunch. They want their lawns to be perfectly manicured. They want each blade to be in place. And they don’t want to see any grass clippings. The Navigator EFI was designed for such a job. With its exclusive Exmark deck and dedicated collection system, it leaves behind nothing but that “straight out of the pages of a magazine” lawn that customers demand. But let’s not forget that this mower comes with all of the advantages of being an Exmark, including better operator comfort, higher ground speed and undeniable productivity. Those are the kinds of benefits that impress a certain discriminating customer—you. These EFI mowers are available with 48-inch decks.
Mower Deck Widths: 48″
Equipment Specs
| Blade Spindles | Heavy Duty cast iron right-angle gearboxes. |
| Drive Tires | 18 x 10.5-10 Multi-Trac® C/S. |
| Tractor Frame | Channeled and fully welded 1.5″ x 1.5″ x 0.187″ wall tubing with a ground clearance of 4.0″, strategically located, continuous force counterweight springs. |
| Steering Control | FeatherTouch hand-control drive levers, low-force constant speed lever. |
| Front Caster Tires | 8 x 3.0-4 semi-pneumatic. |
| Parking Brake | Wet disc, internal in wheel motor. |
| Seat | Commercial grade high back contoured foam padded with hinged mounting. |
| Electrical | 12-volt battery with 20-amp alternator. |
| Engine Brand | Kohler® |
| Engine Model | ECH730 |
| Engine Displacement | 747 |
| Engine Series | Command™ EFI |
| Engine Type | Electronic Fuel Injected |
| Engine Speed | 3,600 rpm |
| Air Filter | Heavy-duty canister air filtration |
| Fuel Type | Gas EFI |
| Fuel Capacity | 7.5-gallon (28.4-L), pivoting tank for easier engine service. |
| Fuel Indicator | Translucent Visual |
| Drive | Hydro-Drive |
| Drive Description | New Dual Hydro-Gear 12 cc variable displacement pumps power Hydro-Gear H Series motors. |
| Speed | Infinitely variable speed selection from 0–7.0 mph (11.3 kmph) forward, 0–4.5 mph (7.2 kmph) reverse. |
| Carb Compliant | Yes |
| Safety Package | Operator Presence Controls (OPC) and drive system interlock. |
| ROPS | Optional 2-post foldable ROPS with seat belt and latch. |
| PTO Engagement | Lever-actuated clutching belt with 6″ brake band. |
| Drive Wheel Release | Allows movement without engine running. |
| Casters | 0.50″ thick rear caster fork |
| Model Description | Navigator 23 HP* Koh EFI ECH730 w/48″ CD Deck |
| Width / Cutting Deck | 48″ |
| Deck Style | Floating Deck |
| Deck Style Description | Full floating center discharge cutting deck for dedicated bagging with patented Fill Reduction Baffles and heavy duty gear driven spindle assembly. |
| Deck Construction | 7-gauge sides joined by a continuous bead weld to a 10-gauge top, 3/16″ wear guard is welded to the entire base of the deck, 7-gauge deck spindle supports, 0.25″-thick strap steel deck supports. |
| Blade Tip Speed | Approximately 18,500 fpm. |
| Cutting Heights | 1.0″ (2.54 cm) to 4.0″ (10.2 cm) in 0.25″ (0.64 cm) increments . |
| Blades | 2 Blades at 25″ Length |
| Bag Capacity | 9.5 bushel (76 gallons) |
| Width | 49.2 in. (125.0 cm) |
| Length | 94.5 in. (240.0 cm) |
| Height | 51.2 in. (130.0 cm) |
| Curb Weight | 1170 |
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