5.1.2Check battery charge:
Service Interval: Monthly
Allowing batteries to stand for an extended period of time without recharging them will result in reduced performance and service life. To preserve optimum 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 | Percent | Maximum |
| Charging Interval | |
Reading | Charge | Charger Settings |
| ||
|
| ||||
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 | |
5.1.3Clean 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 can create a fire hazard.
HOW TO AVOID THE HAZARD
♦Clean all debris from the engine cooling air intake screen and behind the carburetor daily.
a)Stop engine, wait for all moving parts to stop, and remove key.
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.
5.1.4Clean grass
Service Interval: Daily
a)Stop engine, wait for all moving parts to stop, and remove key.
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.
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