Monthly Maintenance; Quarterly Maintenance - Tennant ASC-15 Manual Del Operario

8. Clean machine with an all purpose cleaner and
damp cloth (Figure 41).
FIG. 41
9. Inspect spray gun pattern. Clean or replace orifice
if spray pattern will not pin--point. Use a 5/64"
Allen wrench to remove orifice (Figure 42).
FIG. 42

MONTHLY MAINTENANCE

(Every 80 Hours Of Use)
1. Flush solution system with an acetic acid solution
to dissolve normal alkaline chemical buildup.
a. Premix 16 oz / .5 L of an acetic acid solution
with 2 gallons / 7.5 L of hot water,140_ F /
60_ C maximum, and pour into solution tank.
FOR SAFETY: When using machine, follow mixing
and handling instructions on chemical containers.
b. Turn off pump switch.
c. Over a floor drain operate spray gun 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 3 gallons / 11 L of clean
water.
2. Lubricate wheels and casters with a water
resistant oil.
3. Inspect machine for water leaks and loose
hardware.
ASC- -15 / ASC- -57 (04- -10)
Home Find... Go To..
4. Every 40 hours of use, pump must be greased.
Refer to hour meter. Each new machine is
equipped with a grease gun (#190022).
a. Open machine to access pump (See
ACCESSING INTERNAL COMPONENTS).
b. Remove safety cover from pump by pinching
tabs and pulling outward.
c. Insert grease gun nozzle onto pump's grease
fitting (Figure 43).
d. Slowly push plunger completely down one to
two times. Do not over grease pump, seals
may damage.
ATTENTION: Do not use air powered or hand lever
grease guns, pump damage may result.
e. Apply a generous dab of grease to outer
diameter of cam bearing at top and bottom
where bearing contacts connecting rod.
f. Check pump periodically and remove any
excess grease from pump cavity.
FIG. 43

QUARTERLY MAINTENANCE

(Every 250 Hours Of Use)
Every 250 hours of use check vacuum motors for
carbon brush wear. Replace brushes if worn to a
length of 0.38 in / 10 mm or less (Figure 44).
FIG. 44
WARNING: Electrical Hazard. Unplug Power
Cord Before Servicing Machine.
OPERATION
EN
17