Monthly Maintenance; Quarterly Maintenance - Tennant 5400 Manual Del Operador

OPERATION
2. If equipped with ESt option, clean ESt float
switch located inside recovery tank (Figure 63).
NOTE: If scrubbing an area where metal
shavings are present, it is recommended that you
clean the ESt float switch more frequently. The
ESt float switch is equipped with a magnet which
will attract metal shavings.
FIG. 63
3. Check fluid level in battery cells (See BATTERY
MAINTENANCE).
4. Clean battery tops to prevent corrosion (See
BATTERY MAINTENANCE).
5. Check for loose or corroded battery cables.
6. Check air pressure in tires. Proper air pressure for
standard pneumatic tire is 315 to 345 kPa (45 to
50 psi).

MONTHLY MAINTENANCE

(Every 80 Hours of Use)
1. Flush solution system. Pour 11.3 L (3 gal) of hot
water into solution tank. Add an alkaline detergent
according to mixing instructions. Over a floor
drain, briefly operate machine, ESt option and
wand option for 30 seconds each. Turn key off and
leave machine overnight. Next day, disperse
remaining alkaline detergent and rinse solution
system.
2. Check brushes for proper adjustment (See
ADJUSTING SCRUB HEAD).
3. Lubricate caster grease fittings with a water
resistant grease.
4. Lubricate all pivot points and rollers with silicone
spray then coat with a water resistant grease to
maintain smooth operation.
24
Clean behind hinge
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5. Cylindrical Brush Scrub Head: Check brush belt
tension. Proper belt deflection should be 3 mm
(0.1 in) at midpoint, with 1.13–1.22 Kg (2.5–2.7
lbs) force (Figure 64).
FOR SAFETY: When servicing machine,
disconnect battery connections before working on
machine.
FIG. 64
ATTENTION: Contact an Authorized Service
Center for machine repairs.
6. Check machine for water leaks and loose nuts and
bolts.

QUARTERLY MAINTENANCE

(Every 250 Hours of Use)
1. Check drive transaxle, vacuum and brush motors
for carbon brush wear, replace brushes when worn
to a length of 10 mm (0.38 in) or less.
Contact an Authorized Service Center for motor
maintenance.
2. FaSTt Model Only: Remove and clean out the air
filter with compressed air. The FaSTt system air
filter is attached to the air pump (Figure 65).
FIG. 65
Tennant 5400 (05–03)