Check Mower Blades - Exmark NAVIGATOR Operator's Manual

Figure 17
1. Positive (+) cable on discharged battery
2. Positive (+) cable on booster battery
3. Negative (–) cable on the booster battery
4. Negative (–) cable on the engine block
5. Booster battery
6. Discharged battery
7. Engine block
4. Connect the other end of the positive cable to the
positive terminal of the booster battery.
5. Connect the black negative (–) cable to the other
terminal (negative) of the booster battery.
6. MAKE THE FINAL CONNECTION ON
THE ENGINE BLOCK OF THE STALLED
VEHICLE (NOT TO THE NEGATIVE POST)
AWAY FROM THE BATTERY. STAND BACK.
7. Start the vehicle and remove the cables in the
reverse order of connection (the engine block
(black) connection is the first to disconnect).

Check Mower Blades

Service Interval: Before each use or daily
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Lift deck and secure in raised position as stated
in section Raising the Mower Deck to the
Service Position.
3. Inspect blades and sharpen or replace as required.
4. To remove blade, use a block of wood or locking
pliers to hold blade in place and remove the
1/2-20 x 2 1/4 inch blade bolt that secures the
blade and blade driver.
5. Re-install the blade driver (with new blades) by
using a block of wood or locking pliers to hold
the blade in place and torque the blade bolts to
85-110 ft-lb (115-149 N-m).
Note: Blade driver flats must be aligned with
the flats on the shaft when installing blade on the
mower deck.
6. Lower the mower deck to the operation position
(see section Lowering the Mower Deck to the
Operation Position).
WARNING
Operating a mower deck with loose or
weakened blade bolts can be dangerous. A
loose or weakened blade bolt could allow a
blade rotating at a high speed to come out
from under the deck, causing serious injury
or property damage.
• Replace the blade bolt after striking a
foreign object.
• Use only genuine Exmark replacement
parts.
• Do Not lubricate the threads of the bolt or
spindle before assembly.
• Torque the blade bolt to 85-110 ft-lb
(115-149 N-m).
• Torque the shear bolts to 80-100 in-lb
(922-1130 N-cm).
1. 1/2-20 x 2 1/4 blade bolt— torque to 85-110 ft-lb
(115-149 N-m).
2. Washer
3. Shear bolts—torque to 80–100 in-lb (922-1130 N-cm)
4. Blade driver
5. 1/4-20 nyloc nuts
33
Maintenance
Figure 18