Hoover WindTunnel Owner's Manual page 12

Lubrication
The
motor is equipped with bearings
that contain sufficient lubrication for the
life of the motor.
The
addition of lubri-
cant could cause damage.
Therefore,
do not add lubricant to motor bear-
ings.
The
agitator is equipped with two ball
bearings that should be lubricated peri-
odically by a Hoover Factory Service
Center or an Authorized Hoover
Warranty Service Dealer (Depot).
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Hoover Oleaning
Performance
This Hoover Cleaning Performance
System is for comparing the relative pro-
gressive performance of
Hoover
uprights only _ind not for comparison
with any other brands.
The
majority of
this rating is b_lsed upon the American
Society for Testing and Materials
(ASTM)
Carpet Cleaning Effectiveness Testing
(ASTM Test F608). Other performance
factors include
Hose Power
(ASTM
Test
F558),
Surface Litter Cleaning, Hard
Floor Cleaning, Edge Cleaning, Air
Filtration and Cleaning Width.
.-11"a , 11r_
Thermal protector
An
internal thermal protector has been
designed into your cleaner to protect it
from overheating.
When the thermal protector activates,
the cleaner will stop running. Ir this
happens, proceed as follows:
1. Turn the cleaner
OFF
and discon-
nect it from the electrical outlet.
2. Check secondary and final filters
for dirt accumulation.
3. Refer to "Clearing blockages" sec-
tion.
4. When cleaner is unplugged and
the motor cools for 30 minutes, the
thermal protector automatically resets
and cleaning may continue.
If the thermal protector continues to
activate after following the above steps,
your cleaner may need servicing (see
"Service" section).
If a minor problem occurs, it usually can
be solved quite easily when the cause
is found by using the checklist below.
Possible Cause
Possible Solution
• Not firmly plugged in
• Plug unit in firmly
• No voltage in wall plug
• Check fuse or breaker
• Blown fuse or tripped breaker
• Replace fuse or reset breaker
•Thermal protector activated
• Allow cleaner to cool for 30 minutes
(this will reset the thermal protector)
Possible Cause
Possible Solution
• Broken or worn belt(s)
• Replace belt(s)
• Brush r011worn
• Replace brush roll
• Filter bag full
• Change filter bag
• Incorrect carpet height setting
•
Move
carpet height control to lower
setting
• Blockage in air flow passage
• Clear blockage (see "Clearing block-
ages section)
Possible Cause
Possible Solution
• Incorrect carpet height setting
•
Move
carpet height control to a higher
setting
Possible Cause
Possible Solution
• Flat belt broken or worn
• Replace belt
• Self-propel button in OFF position
• Slide button to ON
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Possible Cause
Possible Solution
• Brush roll in OFF position
• Move brush roll control to ON position
(carpet)
• Flat belt broken or worn
• Replace belt
Olearing blockages
Disconnect cleaner from electri-
cal outlet.
Warning - Brush roll can start
suddenly. Unplug cleaner when it
is turned over.
Low
suction or pick up may be due to a
blockage in the system. Refer to the
following steps to check for blockages
continuing with each step until the
blockage is found:
1. Check fullness of filter bag; change if
needed.
Checking airflow path
2. Plug cleaner in and turn
ON.
Check for
suction at end of hose (A).
a. If there is
suction,
continue with
step 3.
b. If there is rl0
suction,
check for
blockage in hose and dirt tube as
follows:
1) Disconnect hose from dirt duct (C)
by reversing procedure for "Attach
hose" on p. 4, Figs. 1-5 and
1-6.
2) Clear out hose.
3) Look into (C) and remove blockage.
3. Check connection at hose tube (B);
remove any blockage.
4. Turn
cleaner
OFF
and unplug.
Checking under bottom plate
5. Remove bottom plate ( Fig.
3-9)
and
brush roll (Fig.
3-15).
Look
into opening
(F),
in channr/els (G)
and around liner (H), and remove any
accumulated debris.
12