Hoover PowerMAX Operating instructions

PowerMAX Canisters
PowerMAX canister models were introduced in 1993
as replacements for Spectrums, which they resemble
in appearance.
ALL PowerMAX canisters have power nozzles.
Nozzle motors are turned on (rug) and off (bare) at the
hose grip.
POWER
VARIABLE
CONTROL
Power nozzles packed with PowerMAX models are all
the style shown at the left with two brush brush roll,
headlight and belt check window,
All nozzles used with the PowerMAX have a belt check
window on the top.
On all models (on/off on unit or hose) the hose must be
plugged into the P.T.O. receptacle of the cleaner
before the canister will operate.
Variable speed motors are in some PowerMAX models.
Motor speed can be varied on the unit on some models
and on the hose on others. See drawings.
ALL POWERMAX models:
•Use Type "S", 7 quart, micro filtration T/A bags (std
"S" bags will work)
• Have reusable secondary filters in the bag cavity to
catch any fine dirt which may get past the T/A bag,
These filters can be washed in warm water.
• Have washable micro filters to clean exhaust air
even more before it is returned to the room. See
drawing.
• Have 25' cords on a cord reel
• Have covered tool storage on the cleaner
• Include a 4 piece tool set
• Have "check bag" indicators
• Have bag lid hinges designed to break away if the
lid is opened too far
4/93

Prominent parts of one PowerMAX model are shown
in the drawing below.
Refer to the Hoover Service Manual for repair proce-
dures and to the Microfiche Parts Catalog -- (dark
brown header) - for spare parts.
REMOTE
CONTROLS
SECONDARY
FILTER
CORD
REEL
TIA MICRO
BAG FILTER MOTOR
POWERON
LIGHT
POWER
ON/OFF
CHECK BAG
INDICATOR
WINDOW
LAMP
BRUSH ROLLER BELT
4/93

SERVICE INSTRUCTIONS
POWERMAX/SPECTRUM/FUTU RA
CLEANERS
Service Dept. 1/96

PowerMAX/Spectrum
AL
!BRAKE
ARM SWITCH
POWER LIGHT
MOTOR
MOTOR RETAINER
SWITCH
MOUNTING PLATE
HEOSTAT
SPEED CONTROL
,SPRING
BAG UD
EXHAUST
FURNITURE
GUARD
EXHAUST RLTER CASSETTE
BAG LID BAG
;AG COLLAR
SEAL RLTER
RETAINER
CORD REEL __
ASSEMBLY COLLAR
SUPPORT
SECONDARY RLTER
RECEPTACLE
ASSEMBLY
CORD
_. HANNEL
COVER
WHEEL
CARRIER
ASSEMBLY

I. General
The Futura, Spectrum and PowerMAX clean-
ers are straight air suction type canisters
designed to work efficiently at 120 Volts, 50
Hertz.
Features include:
Full bag indicators
Tool storage (hinged tool covers on Spectrum
and PowerMAX models)
150 ohose swivel at suction inlet
Seven quart throw away bag - Type S
Cord reels on deluxe models
Power Surge on deluxe Spectrum models
Powered nozzles on deluxe models
II. Basic operation
Futura
On Futura models, an on/off switch on the unit
provides power to the unit and powered
nozzle (where applicable). All models are
single speed.
Spectrum
On top of the line models, both the on/off
switch on the unit and hose must be activated
to power the unit. A rheostat located on either
the unit or the hose controls the motor speed.
Some models have a surge button on the
hand grip to increase the speed of the pow-
ered nozzle motor.
PowerMAX
On top of the line models, both the on/off
switch on the unit and hose must be activated
to power the unit. A rheostat located on either
the unit or the hose controls the motor speed.
Top of the line models incorporate an on/off
switch on the grip that controls the powered
nozzle.
Wiring diagrams are listed in the back of this
instruction.
III, Disassembly
A. Hose Assembly
Futura current carrying: This hose cannot be
disassembled and must be replaced as an
assembly.
• Futura straight air: To remove the hose grip,
use a flat punch to push in on the plastic
bosses on both sides of the grip while pulling
outward on the hose.
HOSE GRIP
To remove the hose connector, grasp and pull
outward while twisting•
HOSE CONNECTOR
Spectrum-PowerMAX hoses: The grip control
panel assm. (Rheostat and rocker switch)
latch, ring, inner tube and connector assm.
can be replaced by disassembling the right
and left hand grip halves.

Current
Hose Assembly INSULATING
SLEEVE
GRIP CONTROL PANEL
ASSEMBLY (Includes
Rocker Switches & Rheostat)
\._RIP- L,H,
RELEASE
LATCH
PLUG
LATCH
HOSE GRIP
(MALE END)
RE'TAINING
RING
,. LATCH
RING
GRIP - R.H. 4NER TUBE
ASSEMBLY
1. Remove retaining ring on end of hose grip.
a. Retaining ring is a bayonet type assembly -
rotate ring counterclockwise and pry off end
of grip.
2. Remove four screws in handle grip.
Note the position of wiring for ease of reas-
sembly.
B. Hose/Hose grip (male end)
The hose grip cannot be disassembled. If the
hose or grip are damaged the hose must be
replaced as an assembly.
The pigtail cord in the grip can be repaired
using a service repair kit.
DESCRIPTION
40300051 Service cord repair kit
2 wire
40300052 Service cord repair kit
3wire
Cleaner assembly
Note: Before making any repair or adjustment,
bag lid and paper bag should be removed.
A. Bag lid
1. Lift bag lid latch and open bag lid.
2. Push lid open past the first detent, lid will
release.
Note: To reattach lid, align hinges with
appropriate slots and push them into main
body.
3. Remove hinges (snap fit - release tab - lift
out).

4. Remove bag lid latch.
a. Release latch spring on indentation in bag
lid and slide latch out (snap fit).
5. Remove full bag indicator.
e. Snap fit - release holding tab on support
rib.
6. Remove bag collar seal.
B. Bag collar support
1. Snaps out -pivot support upward toward
handle.
C. Secondary filter/filter retainer
1. Pull off filter retainer, friction fit, lift out filter.
D. Tool lid (where applicable)
1. Friction fit -lift lid upward and tilt backwards
until lid pops free.
2. Remove cleaning tools.
E. Exhaust (micro) filter (Spectrum/
PowerMAX units)
1. Pull up - slide out.
\
2. Open grid on cassette and remove filter.
F. Motor cover
1. Remove the three mounting screws and lift
off cover (Screws are located in tool cavities.)
2. After the motor cover is removed, note
proper wire locations, then release sufficient
wires to allow easy removal of the cover.
G. Switch
1. Remove motor cover (step 1, item F).
2. Disconnect switch leads (one from crimped
insulator).
3. Remove switch pedal. Note: Remove pedal
carefully to prevent losing the spring.
a. Insert at blade screwdriver between pedal
and housing, on either side near hinge.

b. Pry enough to release hinge while pulling
up carefully on the pedal.
4. Remove switch mounting nut.* Switch then
drops down.
Note: When reinstalling switch be sure to
include switch mounting plate.
* The switch style was changed on PowerMAX
and Futura models in mid-1994. The current
switch is a snap-in design as shown below. To
accommodate the latest switch, the switch
pedal was modified by removing the extended
post that contacts the switch button. Both
switch pedals are available in service and
identified on the microfiche parts list as switch
pedal with post and switch pedal without post.
When changing an old style switch you must
also update the switch pedal or remove the
post on the existing pedal.
SWITCH
OLD NEW
_E_DED POST"
NEW
EXTENDED POST
REMOVED
H. Cord reel pedal/brake arm
BRAKE BRAKEARM
SWITCH
II
•MOUNTING
L.- WIRE CONNECTOR
1. Insert at blade screwdriver between pedal
and housing near the hinge pin nearest the
word cord. (This hinge pin is shorter)
2, Pry enough to release hinge and lift off.
3. Remove brake arm.
a. Lift flap on brake arm upward - release
brake arm body from slot in motor cover -snap
fit.
b, Lift out from top or bottom of motor cover.
I. Power light
1. Remove by pushing upward from beneath
cover.
2. Disconnect leads replace light assembly.

J. Rheostat (Models with rheostat in motor
cover)
1. Remove button on top of motor cover.
2. Release appropriate leads.
3. Release mounting tabs on each end of
rheostat - lift out.
K. Cord reel
The cord reel is replaced as an assembly
only.
1. Remove motor cover (step 1, item F).
2. Disconnect leads.
MOUNTING
SCREW
CORD
FERRELL
3. Push outward on side of main body and lift
cord reel straight up and out.
4. Lay reel aside and remove cord ferrell.
a. Remove mounting screw. (Early models)
b. Grasp back edge of ferrell and pull up and
out.
NOte: The ferrell is carried as part of the cord
reel. When reinstalling ferrell, insert top first
into opening, then push down and into place.
5. Install new cord reel assembly. When
reinstalling cord reel, be sure lead wires are
routed through retainer at bottom of reel. This
is to prevent interference with exhaust filter
frame.
L. Cord (cord reel models)
1. Repeat steps 1,2,3 and 4, section J.
2. Remove preturns on cord reel.
a. Depress brake pad and turn cord reel to
remove preturns. Bracket will turn counter-
clockwise.
3. Unwind the cord from the cord reel.
4. Remove the cord and terminal block.
a. Flex cord reel and slide locating tabs out
of cord reel housing.
b. Unlock the two end tabs and continue to
side the terminal block outward.

5. Removecordand replace.
6. Set cord reelat properpreturns (3).
a. Holdcord reelwith cord reel support
facing upand turncord reel support clock-
wise.
CORD REEL
SUPPORT_
MOTOR
BRUSH CARRIER
BALANCING
RING
FAN COVER
SPRING WASHER
THRUST
WASH:
BRUSH HOLDER
MOTOR
RING
MOTOR
MOUNT
ARMATURE FIELD
COiL
STAR
RING
BRUSH
FAN
M. Motor
1. Remove motor cover (step 1, item F).
2. Remove motor retainer (4 screws).
3. Disconnect the appropriate leads and
remove the motor.
4. Rotate the armature to check for noise or
bearing failure.
5. Remove brush carriers from the motor and
check carbon brushes. Be sure they slide
freely in the holder.
If brushes are worn, replace. Also, check
condition of commutator. If worn, replace
armature.
6. Remove fan cover.
a. Insert a screwdriver in indentations be-
tween fan cover and diffuser and tap with
mallet.