42
Speed Scrub 350 9016424 (09-2017)
MAINTENANCE
BATTERIES
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, and remove key.
The lifetime of the batteries depends on proper
maintenance. To get the most life from the
batteries:
• Do not charge the batteries more than once a
day and only after running the machine for a
minimum of 15 minutes.
• Do not leave the batteries partially discharged
for long period of time.
• Only charge the batteries in a well-ventilated
area to prevent gas build up.
• Allow the charger to complete charging the
batteries before re-using the machine.
• Maintain the proper electrolyte levels of
fl
ooded (wet) batteries by checking levels
weekly.
Your machine is equipped with either
fl
ooded
(wet) lead-acid or maintenance-free (Sealed AGM)
batteries supplied by Tennant.
FOR SAFETY: When servicing machine, keep
all metal objects off batteries. Avoid contact
with battery acid.
MAINTENANCE-FREE BATTERIES
Maintenance-free (Sealed AGM) batteries do
not require watering. Cleaning and other routine
maintenance is still required.
FLOODED (WET) LEAD-ACID BATTERIES
The
fl
ooded (wet) lead-acid batteries require
routine watering as described below. Check the
battery electrolyte level weekly.
NOTE: If machine is equipped with the automatic
or manual battery watering system, proceed to the
BATTERY WATERING SYSTEM instructions.
The electrolyte level should be slightly above the
battery plates as shown before charging. Add
distilled water if low. DO NOT OVERFILL. The
electrolyte will expand and may over
fl
ow when
charging. After charging, distilled water can be
added up to about 3 mm (0.12 in) below the sight
tubes.
Before Charging
After Charging
CHECKING CONNECTIONS / CLEANING
After every 200 hours of use, check for loose
battery connections and clean the surface of the
batteries, including terminals and cable clamps to
prevent battery corrosion. Use a scrub brush with
a strong mixture of baking soda and water. Do not
remove battery caps when cleaning batteries.
