54
REGULAR CHECKS AND MAINTENANCE WORK
EVERY 50 SERVICE HOURS
Battery Charging
3
CAUTION
To avoid personal injury:
When the battery is being
activated, hydrogen and oxygen
gases in the battery are
extremely explosive. Keep
open sparks and fl ames away
from the battery at all times,
especially when charging the
battery.
When charging battery, remove
battery vent plugs.
When disconnecting the cable
from the battery, start with
the negative terminal fi rst.
When connecting the cable
to the battery, start with the
positive terminal fi rst.
Do not check battery
charge by placing a metal
object across the terminals.
Use a voltmeter or hydrometer.
1. Make sure each electrolyte level is to the
bottom of vent wells, if necessary add
distilled water in a well-ventilated area.
2. The water in the electrolyte evaporates
during recharging. Liquid shortage
damages the battery. Excessive liquid
spills over and damages the excavator
body.
3. To slow charge the battery, connect the
battery positive terminal to the charge
positive terminal and the negative to the
negative, then recharge in the standard
fashion.
4. A boost charge is only for emergencies.
It will partially charge the battery at a
high rate and in a short time.
When using a boost-charged battery, it
is necessary to recharge the battery as
early as possible.
Failure to do this will shorten the battery’s
service life.
5. When the specifi c gravity of electrolyte
falls between 1.27 and 1.29 charge has
completed.
6. When exchanging an old battery for
a new one, use a battery of equal
specifi cation.
Greasing of Swing Bearing Teeth
1. Pump greace with the grease gun
through the grease nipple.
2. Grease at each 90º (1.58 rad.) position of
the swing frame.
3. Fill with approx. 50g of grease (approx. 20
pumps with the grease gun). Distribute
the grease over the teeth.
(1) Grease nipple (for Bearing teeth)
