MAINTENANCE
Tennant 1230 (7–99)
18
MAINTENANCE REQUIREMENTS
The
DAILY, WEEKLY, and MONTHLY maintenance
requirements listed here may be performed without
tools by the machine operators. Instructions for these
maintenance requirements are provided in this
section of the manual.
The
EVERY SIX MONTHS maintenance
requirements should only be performed by a qualified
mechanic.
DAILY
Perform all duties listed under
PRE-OPERATION and POST-OPERATION
Sections
If machine is to be transported or stored under
freezing conditions, machine (and any options)
must be freeze protected. See
FREEZE
PROTECTION.
WEEKLY
Remove and flush out the solution dispensing
nozzles in the intake head and powerbrush
head.
Clean and flush out the vacuum intake nozzle in
the intake head at the front of the machine.
MONTHLY
Flush the solution system of alkaline residue
with diluted vinegar solution. See
RINSING
SOLUTION SYSTEM under SOLUTION
SYSTEM.
Lubricate brush housing pivot pins/bearings with
light oil.
Check and tighten all fasteners/hardware.
EVERY SIX MONTHS
Six month and yearly maintenance is
recommended to be performed by a service
mechanic from your authorized Service Center.
Six month maintenance includes weekly and
monthly maintenance, plus:
Drive belt inspection/replacement.
Scrub brush replacement (if required).
Replace the brush when the remaining
bristles measure 10 mm (0.38 in) or less in
length.
Motor carbon brush inspection/replacement
in brush, vacuum motors.
Brush bearing and seal inspection/
replacement.
SOLUTION SYSTEM
The solution system can accumulate an alkaline
buildup. The pumping/nozzle system should be
flushed monthly, or more often if hard water is used.
RINSING SOLUTION SYSTEM
1. Mix a solution of 1 L (0.26 gal) white vinegar to
8 L (2.1 gal) water.
2. Pour the solution into the solution tank. Position
the machine over a floor drain.
3. Plug in the power cord and press the bottom (l)
of the hand tool switch. The pump will start and
spray through the nozzles to the floor.
4. Run the pump until all solution has been
dispensed through system.
5. Rinse the solution system again with 8 L of
water only. Check the solution dispensing
nozzles for plugging.
SOLUTION DISPENSING NOZZLES
AND VACUUM INLET
The intake head contains four solution dispensing
nozzles. There is also one dispensing nozzle
contained in the powerbrush head. Remove and rinse
these nozzles every week, or if they are plugged.
Remove any debris caught in the vacuum inlet and
flush with water.
ATTENTION: Plugged nozzle(s) can cause
streaking of carpets, and create a back-pressure
that can damage the solution pump. Always
remove and clean nozzles as soon as plugging
occurs.
To clean nozzles and vacuum inlet:
1. Unplug the power cord from the wall outlet.
