Caster Wheels; Battery - Husqvarna MZ 54S Operator's Manual

MAINTENANCE

Caster Wheels

Check every 200 hours. Check that wheels rotate
freely. Foam filled tires or solid tires will void the
warranty.
To replace, remove nut and caster bolt. Pull the
wheel out of the yoke and take care with the
spacer. Reinstall in reverse order. Tighten the
caster bolt and torque to 45 ft-lbs (61 Nm).
NOTE: Tire must rotate freely but axle spacers
must not. If wheels do not rotate freely take the
unit to the dealer for service.

Battery

If the battery is too weak to start the engine, it
must be recharged. If jumper cables are used for
emergency starting:
1. Connect each end of the RED cable to the
POSITIVE (+) terminal on each battery, taking
care not to short against chassis.
2. Connect one end of the BLACK cable to the
NEGATIVE (-) terminal of the fully charged
battery.
3. Connect the other end of the BLACK cable
to a good CHASSIS GROUND on the mower
with the discharged battery, away from the
fuel tank and battery.
24
To remove cables, reverse order
1. Remove BLACK cable first from chassis and
then from the fully charged battery.
2. Remove RED cable last from both batteries.
CAUTION! Lead-acid batteries generate
explosive gases. Keep sparks, flame and
smoking materials away from batteries. Always
wear eye protection when around batteries.
IMPORTANT INFORMATION The mower is
equipped with a 12-volt negative grounded
system. The other vehicle must also be a
12-volt negative grounded system. Do not use
your mower to start other vehicles.
Battery
The mower is equipped with a maintenance
free battery and does not need servicing.
However, periodic charging of the battery with an
automotive type battery charger will extend its life.
• Keep battery and terminals clean.
• Keep battery bolts tight.
• See chart for charging times.
STD STATE
BATTERY OF
CHARGE
50 Amps
12.6V 100%
12.4V 75%
12.2V 50%
12.0V 25%
11.8V 0%
*Charging time depends on battery capacity,
condition, age, temperature and efficiency of charger
WARNING! Do not short battery
terminals by allowing a wrench or other objects
to contact both terminals at the same time.
Before connecting battery, remove metal
bracelets, wristwatch bands, rings, etc.
Positive terminal must be connected first to
prevent sparks from accidental grounding.
IMPORTANT INFORMATION Do not try
to open or remove caps or covers. Adding
or checking the level of electrolyte is not
necessary. Always use two wrenches for the
terminal screws.
APPROXIMATE CHARGING TIME*
TO FULL CHARGE AT 80
Maximum Rate at:
30 Amps 20 Amps
- FULL CHARGE -
20 min. 35 min. 48 min.
45 min. 75 min. 95 min.
65 min. 115 min. 145 min.
85 min. 150 min. 195 min.
F
O
10 Amps
90 min.
180 min.
280 min.
370 min.