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This service information is designed for experienced repair technicians only and is not
designed for use by the general public. It does not contain warnings or cautions to advise
non-technical individuals of potential dangers in attempting to service a product. Products
powered by electricity should be serviced or repaired only by experienced professional
technicians. Any attempt to service or repair the product or products dealt with in this
service information by anyone else could result in serious injury or death.
WARNING
TABLE OF CONTENTS
SPECIFICATIONS...................................................................................................................... Front Cover
WIRING DIAGRAM AND WIRE MANAGEMENT DRAWING ...................................................................... 3
EXPLODED VIEW (GENERAL PARTS) ..................................................................................................... 4
EXPLODED VIEW (NOZZLE HOUSING) ................................................................................................... 5
PARTS LIST (NOZZLE HOUSING)............................................................................................................. 6
EXPLODED VIEW (AGITATOR ASSEMBLY) ............................................................................................. 6
PARTS LIST (AGITATOR ASSEMBLY)....................................................................................................... 6
EXPLODED VIEW ( BODY, MOTOR HOUSING, AND MOTOR).................................................................. 7
PARTS LIST ( BODY, MOTOR HOUSING, AND MOTOR) ........................................................................... 8
EXPLODED VIEW (MOTOR FAN ASSEMBLY) .......................................................................................... 9
PARTS LIST (MOTOR FAN ASSEMBLY).................................................................................................... 9
EXPLODED VIEW (PACKING MATERIALS) ............................................................................................. 10
PARTS LIST (PACKING MATERIALS) ...................................................................................................... 10
COMPONENT REMOVAL CHART............................................................................................................ 11
LOWER PLATE REMOVAL/INSTALLATION.............................................................................................. 12
AGITATOR ASSEMBLY REMOVAL/INSTALLATION ................................................................................. 12
BELT REPLACEMENT .............................................................................................................................. 13
NOZZLE HOUSING REPLACEMENT ....................................................................................................... 14
SWITCH COVER AREA WIRING MANAGEMENT.................................................................................... 15
POWER CORD/ON-OFF SWITCH REPLACEMENT .......................................................................... 15-16
MOTOR PROTECTOR REPLACEMENT .................................................................................................. 16
MOTOR REPLACEMENT ......................................................................................................................... 17
CARBON BRUSH REPLACEMENT.......................................................................................................... 17
MOTOR FAN REPLACEMENT ................................................................................................................. 18
TROUBLESHOOTING GUIDE .................................................................................................................. 19
CONDITION
CHECKPOINT
METHOD OF INSPECTION
CAUSE/REMEDY
• Power source
• Measure power source voltage at plug
• Power source is fault if voltage
(plug socket).
socket by use of tester.
is lower than specified.
• Power cord.
• Remove AC plug from the AC wall outlet.
Connect ohm-meter across both ends of
the power cord plug and operate the
ON/OFF switch. If the meter indicates
continuity, the AC cord, switch, motor
winding are OK.
• If no continuity is found, proceed as
follows:
Remove dust cover and the switch
cover, short across AC plug ends, open
the ON/OFF switch and read across
the black and white leads of the AC cord.
If continuity, cord is OK.
If no continuity, AC cord is open.
• Replace AC cord.
• Motor continuity.
• Check continuity of motor.
• If there is no continuity of motor
replace motor.
• Motor carbon brush is
• Remove noise suppressor and
• If there is gap between carbon
in contact with rotor.
check if there is gap between carbon
brush and rotor, cause is
brushes and rotor.
either dust accumulated in
brush holder or carbon brush
worn out. Adjust or replace.
• ON/OFF switch continuity.
• Remove switch cover, and check
• If there is no continuity between
continuity across switch terminals.
both terminals, ON/OFF switch
must be defective.
• Dust bag.
• Check quantity of dust accumulated in
• Replace dust bag if full. (Paper)
dust bag.
Empty dust bag. (Cloth)
• Filters.
• Check for dirty filter.
• Clean and/or Change Filters.
• Nozzle hose.
• Remove nozzle hose and check.
• If clogged, remove clog.
• Dust in motor fan.
• Check dust accumulated in motor fan.
• Clean dust out of motor fan and
check filter condition.
• Carbon brushes.
• Check uneven wear of carbon brushes.
• Replace carbon brushes. (Be sure
to replace both carbon brushes
at same time.)
• Agitator roller
• Hold bearing units in hand, and turn
• If noise is abnormal, agitator
bearing noise.
agitator, check rolling noise the agitator
end cap is defective.
pulley section makes.
Replace defective end cap.
• Lower housing
• Agitator should turn freely without
• Lower housing is worn.
agitator grooves.
any drag or friction.
• Belt.
• Check condition of belt.
• Replace belt if necessary.
MOTOR FAILS
TO ROTATE,
(NO NOISE IS
HEARD AT
ALL).
SUCTION POWER
IS TOO WEAK.
NOISE OR
VIBRATION.
AGITATOR DOES
NOT ROTATE.
TROUBLESHOOTING GUIDE
