Machine Maintenance; Daily Maintenance; Weekly Maintenance; Monthly Maintenance - Tennant EX-SC-3840 Manual Del Operario

MACHINE MAINTENANCE

To keep machine in good working condition, simply
follow machines daily, weekly and monthly
maintenance procedures.
FOR SAFETY: When servicing machine, unplug
cord from wall outlet.

DAILY MAINTENANCE

(Every 4 Hours of Operation)
1. Rinse out recovery tank and dome thoroughly.
2. Remove lint buildup from float shut--off screen,
located in recovery tank. (Figure 9)
FIG. 9
3. Drain leftover solution in solution tank.
4. Remove and rinse bladder tank screen.
5. Remove any entangled carpet fibers and debris
from brush.
6. Remove any clogged debris in pick up head.
7. Check cord for damage, replace if necessary. Coil
cord neatly after each use.
8. Clean machine with a nonabrasive, nonsolvent
cleaner.
EX- -SC- -3840 / EX- -SC- -3851 (04- -10)
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WEEKLY MAINTENANCE

(Every 20 Hours of Operation)
1. Inspect vacuum hose for holes and loose cuffs.
2. Inspect spray pattern for plugging. If plugged,
remove spray tips and soak in acetic acid solution
for up to six hours. Do not use pointed objects to
unplug tips, damage will occur.
3. Inspect cord and cord grip for damage. Replace
immediately if damaged.

MONTHLY MAINTENANCE

(Every 80 Hours of Operation)
1. Flush pump system with an acetic acid solution to
dissolve normal alkaline chemical buildup.
FOR SAFETY: When using machine, follow mixing
and handling instructions on chemical containers.
a. Premix .5L (16 oz) of an acetic acid solution
with 7.5L (2 gal) of hot water 60_C (140_F )
and pour into solution tank.
b. Turn on Vacuum/Pump switch.
c. Position brush over floor drain and operate
machine for one minute.
d. Shut off machine and allow remaining solution
to break down alkaline buildup overnight.
e. Next day, spray out remaining solution and
flush system with 11L (3 gal) of clean water.
2. Lubricate wheels with a water resistant oil.
3. Inspect machine for water leaks.
4. Inspect machine for loose screws.

QUARTERLY MAINTENANCE

(Every 250 of Hours of Operation)
Check vacuum motor for carbon brush wear. Replace
brushes when worn to a length of 10mm (0.38 in) or
less. Contact your Authorized Service Center for
carbon brush inspection.
OPERATION
EN
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