Exmark Laser Z XP Operator's Manual page 30

a) Check the voltage of the battery with a digital voltmeter. Locate the voltage
reading of the battery in the table below and charge the battery for the
recommended time interval to bring the charge up to a full charge of 12.6
volts or greater.
IMPORTANT: When charging the battery, make sure the negative battery
cables are disconnected and the battery charger has an output of 16 volts
and 7 amps or less to avoid damaging the battery (see chart below for
recommended charger settings).
Voltage
Reading
12.6 or greater
12.4 – 12.6
12.2 – 12.4
12.0 – 12.2
11.7 – 12.0
11.7 or less
5.1.4 Clean engine cooling system:
a) Wipe debris from screen in engine cover. Rotate engine cover forward and
wipe debris from radiator core as required. Inspect seals in engine cover
and replace as necessary.
5.1.5 Clean grass build-up under deck.
a) Stop engine, wait for all moving parts to stop, and remove key.
b) Raise deck to the transport (5" cutting height) position. Lift the front of unit
and support unit using jack stands or equivalent support.
POTENTIAL HAZARD
♦ Raising the mower deck for service or maintenance
relying solely on mechanical or hydraulic jacks could
be dangerous.
WHAT CAN HAPPEN
♦ The mechanical or hydraulic jacks may not be enough
support or may misfunction allowing the unit to fall,
which could cause injury.
HOW TO AVOID THE HAZARD
♦ DO NOT rely solely on mechanical or hydraulic jacks
for support. Use adequate jack stands or equivalent
support.
c) Clean out any grass build-up from underside of deck and in discharge chute.
5.1.6 Check mower blades.
a) Stop engine, wait for all moving parts to stop, and remove key.
b) Lift deck and secure in raised position as stated in Section 5.1.5.
c) Inspect blades and sharpen or replace as required.
Percent Maximum
Charge Charger Settings
100% 16 volts/7 amps
75 – 100% 16 volts/7 amps
50 – 75% 16 volts/7 amps
25 – 50% 14.4 volts/4 amps
0 – 25% 14.4 volts/4 amps
0% 14.4 volts/2 amps
Service Interval: Daily or more often in dry conditions
Service Interval: Daily
CAUTION
Service Interval: Daily
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Charging Interval
No Charging Required
30 Minutes
1 Hour
2 Hours
3 Hours
6 Hours or More