Motor Maintenance; Battery Maintenance - Tennant ReadySpace R14 Operator's Manual

5. Flush the plumbing system with an acetic acid
solution to dissolve normal alkaline buildup. This
procedure requires the machine to sit overnight.
a. Remove rollers/brushes from the scrub head.
b. Pour 3 gal / 11 L of hot water into the solution
tank. Do not exceed 140°F / 60°C.
c. Add the acetic acid solution according to the
mixing directions on the bottle.
FOR SAFETY: When using chemicals follow mixing
and handling instructions on chemical containers.
d. Place the machine in an area with a floor drain.
e. Operate both cleaning technologies for one
minute each.
f. Turn the key off and let the machine sit
overnight to allow the acetic acid solution to
breakdown the alkaline buildup.
g. Next day, disperse the remaining acetic acid
solution and rinse the solution system with 11
liters (3 gal) of clean water.
6. Check the belt tension on the two brush motors.
Tighten the belt if able to twist it more than 90° at
midpoint (Figure 61).
FOR SAFETY: When servicing machine,
disconnect the battery connections.
7. Clean the batteries and check the fluid levels (See

BATTERY MAINTENANCE).

8. Check for loose or worn battery cables. Replace if
worn.
9. Lubricate all pivot points with a water resistant
grease.
10. Check the machine for water leaks.
11. Check the machine for loose nuts and bolts.
Tennant R14 (09- -06)
FIG. 61
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MOTOR MAINTENANCE

Contact an Authorized Tennant Service Center for
carbon brush replacement.
Replace the carbon brushes as directed.
Carbon Brush Replacement
Propel Motor
Vacuum Motors
Brush Motors
WARNING: Electrical Hazard. Disconnect
Battery Cables Before Servicing Machine.
BATTERY MAINTENANCE
WARNING: Fire Or Explosion Hazard.
Batteries Emit Hydrogen Gas. Keep Sparks And
Open Flame Away. Keep Battery Compartment
Open When Charging.
FOR SAFETY: When servicing batteries, wear
protective gloves and eye protection. Avoid
contact with battery acid.
To prolong the life of the batteries only recharge the
batteries if the machine is used for a total of 30 minutes
or more. Never leave batteries discharged for lengthy
periods.
1. Check battery fluid levels before and after
charging. The fluid should be at the level shown
(Figure 62). Add distilled water if low. DO NOT
OVERFILL. The fluid will expand and may overflow
when charging.
CORRECT BATTERY FLUID LEVEL:
Before Charging
Fluid level slightly
above battery plates
OPERATION
Hours
750
1000
After Charging
Fluid level slightly
below sight tubes
FIG. 62
23