Bolens 131-410A - Manual (Page 18)

AIR CLEANER
Service air cieaner every 25 hours under normal
conditions. Clean every few hours under extreme­
ly dusty conditions. Poor engine performance and
flooding usually indicates that the air cleaner
should be serviced. Refer to separate engine
manual.
SPARK PLUG
The spark plug should be cleaned and the gap
reset to a 0.030-inch clearance once a season.
Spark plug replacement is recommended at the
start of each mowing season; check engine
manual for correct plug type.
NOTE
Whenever the spark plug is removed
for cleaning, it is advisable to
replace the spark plug gasket with a
new gasket.
BATTERY MAINTENANCE
1. Check periodically (every two weeks or before
and after charging) to be sure electrolyte level
is above the lowest line on battery. Add only
distilled water or good quality drinking water.
NEVER add additional acid or other chemicals
to battery after initial activation.
2. The battery should be checked with a
hydrometer after every 25 hours of operation.
If the specific gravity is less that 1.225,
remove battery and recharge.
3. Coat the terminals and exposed wiring with a
thin coat of grease or petroleum jelly for
longer service and protection against elec­
trolyte corrosion.
4. The battery should be kept clean. Any
deposits of acid should be neutralized with
soda and water. Be careful not to get this solu­
tion in the cells.
BATTERY STORAGE
1. Charge battery using normal methods.
NEVER store discharged battery as it will not
recover.
2. When storing battery for extended periods,
disconnect battery cables. Removing battery
from unit is recommended.
3. Store in cold, dry place.
4. Recharge battery whenever the specific gravi­
ty is less than 1.225, before returning to ser­
vice, or every two months, whichever occurs
first.
COMMON CAUSES FOR BATTERY FAILURE ARE:
1. Overcharging
2. Undercharging
3. Lack of water
4. Loose hold downs and/or corroded connec­
tions
5. Excessive loads
6. Battery electrolyte substitutes
7. Freezing of electrolyte
NOTE
THESE FAILURES DO NOT CON­
STITUTE WARRANTY.
BELT REMOVAL AND REPLACEMENT
-NOTE
It is recommended that the entire
instructions on belt removal and re­
placement be read before changing
the belts.
Preparation
1. Remove the battery from the unit.
2. To prevent gasoline from leaking from the
engine, remove the fuel tank cap, place a
piece of thin plastic over the neck of the fuel
tank and screw on the cap.
3. Disconnect the spark plug wire and ground it
against the engine.
7 ■■ '
FIGURE 31.
18