Check Mower Blades; Check Safety Interlock System - Exmark LAZER Z Operator's Manual

Maintenance
the battery (see chart for recommended charger
settings).
Voltage Percent
Reading Charge
12.6 or 100%
greater
12.4 – 12.6 75–100%
12.2 – 12.4 50–75%
12.0–12.2 25–50%
11.7–12.0 0–25%
11.7 or less 0%
Note: For Kohler EFI units: Unplug the harness
from the ECU before performing any welding on the
equipment.

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
the Clean Grass Build-Up Under Deck section.
3. Inspect blades and sharpen or replace as required.
4. Reinstall the blades (if they were removed) in the
following order:
A. Install bushing through blade with bushing
flange on bottom (grass) side of blade.
Figure 11
1. Install bushing in blade prior to installing bushing in
spindle.
B. Install bushing/blade assembly into spindle.
Maximum Charging
Charger Interval
Settings
No
16 volts/7
Charging
amps
Required
30 Minutes
16 volts/7
amps
1 Hour
16 volts/7
amps
2 Hours
14.4 volts/4
amps
3 Hours
14.4 volts/4
amps
6 Hours or
14.4 volts/2
More
amps
1. Use wrench here for
blade installation. This
nut has been torqued to
90–110 ft-lb (122–149
N-m)
C. Apply lubricant to threads of blade bolt as
needed to prevent seizing. Copper-based
anti-seize preferable. Grease acceptable
substitute. Install blade bolt finger tight. Place
wrench on the top spindle nut then torque the
blade bolts to 55-60 ft-lb (75-81 N-m).
WARNING
Incorrect installation of the blade or
components used to retain the blade can
be dangerous. Failure to use all original
components and assembled as shown could
allow a blade or blade component to be
thrown out from under the deck resulting in
serious personal injury or death.
Always install the original Exmark blades,
blade bushings, and blade bolts as shown.
Check Safety Interlock
System
Service Interval: Before each use or daily
Note: To prevent engine cut-outs on rough terrain
the seat kill switch has a 1/2 second delay.
1. Check starting circuit. Starter should crank with,
parking brake engaged, PTO disengaged and
30
Figure 12
2. Torque to 55-60 ft-lb
(75-81 N-m) Apply
lubricant to threads
as needed to prevent
seizing. Copper-based
anti-seize preferable.
Grease acceptable
substitute.