Exmark Lazer Z XS - Manual (Page 27)

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battery performance and life, recharge batteries in storage when the open
circuit voltage drops to 12.4 volts.
Note: To prevent damage due to freezing, battery should be fully charged
before putting away for winter storage.
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: Make sure the negative battery cables are disconnected and
the battery charger used for charging the battery 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
Percent
Charge
Maximum
Charger Settings
Charging Interval
12.6 or greater 100% 16 volts/7 amps No Charging Required
12.4 – 12.6 75 – 100% 16 volts/7 amps 30 Minutes
12.2 – 12.4 50 – 75% 16 volts/7 amps 1 Hour
12.0 – 12.2 25 – 50% 14.4 volts/4 amps 2 Hours
11.7 – 12.0 0 – 25% 14.4 volts/4 amps 3 Hours
11.7 or less 0% 14.4 volts/2 amps 6 Hours or More
4.1.3 Clean engine cooling system:
Service Interval: Daily or more often in dry conditions
CAUTION
POTENTIAL HAZARD
♦ Excessive debris and damaged or
missing rubber baffles can cause the
engine and hydraulic system to overheat.
WHAT CAN HAPPEN
♦ Excessive debris around the engine
cooling air intake and inside of the pump
drive belt compartment can create a fire
hazard.
HOW TO AVOID THE HAZARD
♦ Clean all debris from inside of pump drive
belt compartment daily.
a) Stop engine, wait for all moving parts to stop, and remove key. Engage
parking brake.
b) Clean all debris from rotating engine air intake screen and from around
engine shrouding.
c) Inspect rubber engine baffles for proper fit. Replace if necessary.
4.1.4 Clean grass build-up under deck.
Service Interval: Daily
a) Stop engine, wait for all moving parts to stop, and remove key. Engage
parking brake.
b) Raise deck to the transport (5” (12.7 cm) cutting height) position. Lift the
front of unit and support unit using jack stands or equivalent support.