Tires; Mower Deck; Dimensions; Torque Requirements - Exmark Navigator NAV20KC Operator's Manual

2.8 TIRES

Quantity
Tread
Size
Ply Rating
Pressure

2.9 MOWER DECK

2.9.1 Models
Discharge
Cutting Width
2.9.2 Deck Drive: Clutching belt on horizontal engine shaft. Dual "A" section hexagon
belt with spring tensioned idler to jackshaft and blower. Heavy-duty cast iron,
spiral bevel gearbox is final drive to blades.

2.10 DIMENSIONS

Overall Width
Overall Height
Overall Length
Curb Weight
Tread Width (Center to Center of Drive Wheels)
Wheel Base (Center of Drive Wheel to Center of Rear Caster Wheel)

2.11 TORQUE REQUIREMENTS

Bolt Location
Blade Mounting Bolt.....................................................85-110 ft-lbs. (115-149 N-M)
Engine Mounting Bolts ......................................................30-35 ft-lbs. (41-47 N-M)
Wheel Lug Nuts .............................................................90-95 ft-lbs. (122-129 N-M)
Wheel Motor Mounting Bolts............................................72-77 ft-lbs. (98-104 N-M)

3. ASSEMBLY INSTRUCTIONS

3.1 UNCRATE MOWER

3.2 SERVICE BATTERY

WARNING: Battery posts, terminals, and related accessories contain lead compounds, chemicals known
to the State of California to cause cancer and reproductive harm. Wash hands after handling.
The machine is shipped with a filled lead acid battery.
POTENTIAL HAZARD
♦ Charging the battery may produce explosive gasses
WHAT CAN HAPPEN
♦ Battery gasses can explode causing serious injury.
HOW TO AVOID THE HAZARD
♦ Keep sparks, flames, or cigarettes away from battery.
♦ Ventilate when charging or using battery in an
enclosed space.
♦ Make sure venting path of battery is always open once
battery is filled with acid.
Drive
Pneumatic (Air-Filled)
2
Multi Trac C/S
18 x 10.50-10
4
15 psi (103 kPa)
(Sold Separately)
CD42CD
Center Discharge
42 in. (106.7 cm)
Without deck
42.6" (108.2 cm)
51.2" (130.0 cm)
67.3" (170.9 cm)
850 lbs (386 kg)
DANGER
- 12 -
Front Caster
Semi-Pneumatic
2
Smooth
8 x 3.00-4
CD48CD
Center Discharge
48 in. (121.9 cm)
With 42" Deck
43.2" (109.7 cm)
51.2" (130.0 cm)
91.8" (233.2 cm)
1145 lbs (519 kg)
32.7" (83.1 cm)
44.2" (112.3 cm)
Rear Caster
Semi-Pneumatic
1
Smooth
13 x 8.00-6
With 48" Deck
49.2" (125.0 cm)
51.2" (130.0 cm)
94.5" (240.0 cm)
1170 lbs (531 kg)
Torque