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Maintenance Instructions CHECKING/SERVICING
CHECKING/SERVICING
Security of Air Filtration Components
NOTE: The following inspection is only an external
inspection and should be done without “disturb-
ing” the filtration components.
On a daily basis, visually inspect the external condi-
tion of the complete air cleaner system. The
following items should be inspected:
1. Check the Cummins/Fleetguard OptiAir™ air
cleaner canister for damage. Make sure the
cover is in place and the cover latch is secure -
do not run the engine without the air cleaner
cover in place and secure.
2. Inspect the air intake hose for cracks, nicks,
cuts, etc., and check the hose clamps for
tightness.
3. Check to make sure the air flow indicator is in
place and tight.
Battery
NOTE: For initial battery service during setup, refer
to Battery Service in Assembly Instructions.
IMPORTANT: Make sure battery is securely
mounted in the frame. A loose battery may cause
damage to the case resulting in acid leakage and
severe damage to the machine. A hazard may be
created by damage to critical working parts and
safety systems.
Cleaning the Terminals
If battery terminals are corroded, remove battery
from the mower. Using a wire brush, remove corro-
sion with a solution of one part baking soda and
four parts water. Rinse with clean water. Coat the
terminals with petroleum jelly or terminal protector
spray to retard further corrosion.
Charging the Battery
Check the battery charge by measuring the specific
gravity of electrolyte; if specific gravity is less than
1.225, the battery will need to be charged as follows:
• Charge the battery at 15 amps for 10 minutes.
DO NOT exceed 20 amps maximum recommended
charging rate. Charge until specific gravity is at
least 1.250. Total charging time should not exceed
one (1) hour.
Tire Pressure
Inflate tires to pressures shown below:
Deck Caster Wheel = 20 PSI (137 kPa)
Drive = 15 PSI (103 kPa)
Rear = 20 PSI (137 kPa)
Wheel Nuts Torque
Check every 100 hours the eight (8) Drive Tire
mounting nuts. They should each be torqued to
75-85 ft-lbs. (101.7-115.2 N
·m).
Sharpen Mower Blades
Check mower blade(s) for straightness, sharp-
ness, condition of the cutting edge, and balance
every 10 hours of operation (or more often when
mowing abrasive type grass or operating on sandy
soils). Replace blades if worn, bent, cracked, or
otherwise damaged (refer to REPLACING/
REPAIRING the Mower Blades in this section).
Use the following procedure to check and sharpen
blades:
DANGER
To prevent accidental starting of the en-
gine when servicing or adjusting the ma-
chine, remove the key from the ignition
switch and disconnect the spark plug
wires.
DANGER
BATTERIES PRODUCE EXPLOSIVE
GASES
• Charge the battery in a well-ventilated
area, so that gases produced while charg-
ing can dissipate.
• Keep sparks, flames, and smoking ma-
terials away from the battery at all times.
• Make sure the battery cap vents are open
(check manifold vent on each cap).
• Make sure the battery charger is un-
plugged before connecting or discon-
necting cables to the battery.