Little Wonder HPV User manual

TECHNICAL MANUAL
MAN 600709 Rev. B
LITTLE WONDER
HPV
High Performance Vac
Self Propelled MODELS:
5621 & 5631

CALIFORNIA
Proposition 65 Warning
Diesel engine exhaust and some of
its constituents are known to the State
of California to cause cancer, birth
defects and other reproductive harm.
Californie Proposition 65
Avertissement
Les échappements des moteurs diesel
et certains de leurs composés sont
reconnus par l’Etat de Californie pour
être cancérigènes, provoquer des
défauts congénitaux et d’autres dangers
en matière de reproduction.
ADVERTENCIA
AVERTISSEMENT
WARNING
The engine exhaust from this product
contains chemicals known to the State
of California to cause cancer, birth
defects or other reproductive harm.
California Advertencia
de la Proposicion 65
El estado de California hace saber que
los gases de escape de los motores
diesel y algunos de sus componentes
producen cáncer, defectos de
nacimiento y otros daños en el
proceso de reproducción humana.
L’ é mission du moteur de ce mat é riel
contient des produits chimiques que
l’Etat de Californie consid è re ê tre
canc é rig è nes, provoquer des d é fauts
cong é nitaux et d’autres dangers en
mati è re de reproduction.
El estado de California hace saber
que los gases de escape de este
producto contienen productos
quÍmicos que producen cáncer,
defectos de nacimiento y otros daños
en el proceso de reproducción
humana.
CALIFORNIA
Proposition 65 Warning
Battery posts, terminals, wiring
insulation, and related accessories
contain lead and lead compounds,
chemicals known to the State of
California to cause cancer and birth
defects or other reproductive harm.
WASH HANDS AFTER HANDLING.

1
LITTLE
WONDER
HPV
5-2007
IMPORTANT MESSAGE
ThankyouforpurchasingthisSchiller-Pfeifferproduct. Youhavepurchasedaworldclassproduct,oneofthebest
designed and built anywhere.
This machine comes with a Technical Manual. The useful life and good service you receive from this machine
dependstoalargeextentonhowwellyoureadandunderstandthismanual. Treatyourmachineproperly,lubricate
and adjust it as instructed, and it will give you many years of reliable service.
YoursafeuseofthisSchiller-Pfeifferproductisoneofourprimedesign objectives. Manysafetyfeaturesarebuilt
in,butwealsorelyonyourgoodsenseandcaretoachieveaccident-freeoperation. Forbestprotection,studythe
manual thoroughly. Learn the proper operation of all controls. Observe all safety precautions. Follow all
instructionsandwarningscompletely. Donotremoveordefeatanysafetyfeatures. Makesurethosewhooperate
this machine are as well informed and careful in its use as you are.
See a Schiller-Pfeiffer dealer for any service or parts needed. Schiller-Pfeiffer service ensures that you continue
to receive the best results possible from Schiller-Pfeiffer products. You can trust Schiller-Pfeiffer replacement
parts because they are manufactured with the same high precision and quality as the original parts.
Schiller-Pfeifferdesignsandbuildsitsequipmenttoservemanyyearsinasafeandproductivemanner. Forlongest
life, use this machine only as directed in the manual, keep it in good repair and follow safety warnings and
instructions. You'll always be glad you did.
LITTLE WONDER
Division of Schiller-Pfeiffer, Incorporated
1028 Street Road, P.O. Box 38
Southampton, PA 18966
TABLE OF CONTENTS FIGURES PAGE
SAFETY ...................................................................................................................................................... 2-7
ASSEMBLY ............................................................................................................................................... 8-12
OPERATION .......................................................................................................................................... 13, 14
STORAGE & MAINTENANCE...................................................................................................................... 15
SERVICE................................................................................................................................................ 16, 17
PARTSASSEMBLY ............................................ FIGURE 1.................................................................. 18, 19
ENGINEASSEMBLY .......................................... FIGURE 2.................................................................. 20, 21
DECKASSEMBLY.............................................. FIGURE 3.................................................................. 22, 23
COLLECTORASSEMBLY.................................. FIGURE 4.................................................................. 24, 25
LINERASSEMBLY ............................................. FIGURE 5.................................................................. 26, 27
COLLECTORASSEMBLY.................................. FIGURE 6.................................................................. 28, 29

2
LITTLE
WONDER
HPV
SAFETY
NOTICE !!!
Unauthorized modifications may present extreme
safety hazards to operators and bystanders and
could also result in product damage.
Schiller-Pfeiffer strongly warns against, rejects and
disclaims any modifications, add-on accessories or
productalterationsthatarenotdesigned,developed,
testedandapprovedbySchiller-PfeifferEngineering
Department. Any Schiller-Pfeiffer product that is
altered, modified or changed in any manner not
specifically authorized after original manufacture–
including the addition of “after-market” accessories
or component parts not specifically approved by
Schiller-Pfeiffer–will result in the Schiller-Pfeiffer
Warranty being voided.
Anyandallliabilityforpersonalinjuryand/orproperty
damage caused by any unauthorized modifications,
add-on accessories or products not approved by
Schiller-Pfeiffer will be considered the responsibility
of the individual(s) or company designing and/or
makingsuchchanges. Schiller-Pfeifferwillvigorously
pursue full indemnification and costs from any party
responsibleforsuchunauthorizedpost-manufacture
modifications and/or accessories should personal
injury and/or property damage result.
This symbol means:
ATTENTION!
BECOME ALERT!
Your safety and the safety of others is involved.
Signal word definitions:
Thesignalwordsbelowareusedtoidentifylevelsof
hazard seriousness. These words appear in this
manualandonthesafetylabelsattachedtoSchiller-
Pfeiffermachines.Foryour safety andthesafetyof
others, read and follow the information given with
thesesignalwordsand/orthesymbolshownabove.
DANGER indicates an imminently hazardous
situationwhich,ifnotavoided, WILL result in death
or serious injury.
WARNINGindicatesapotentiallyhazardoussituation
which, if not avoided, COULD result in death or
serious injury.
CAUTIONindicatesapotentiallyhazardoussituation
which,ifnotavoided,MAYresultinminorormoderate
injury. It may also be used to alert against unsafe
practices or property damage.
CAUTION used without the safety alert symbol
indicates a potentially hazardous situation which, if
not avoided, MAY result in property damage

3
LITTLE
WONDER
HPV
Unpacking
1. Remove Collector assembly, Nozzle assembly,
and Debris bag from the top section of the
package.
2. Remove cardboard insert.
3. Cut away short side of box and fold down.
4. Pull and latch “transaxle engagement lever.”
See page 9.
5. Roll HPV base unit out of box.
Safety and Warnings
Safety Decals
An important part of the safety system incorporated
in this High Performance Vac are the warnings and
informational decals (labels) found on various parts
of the unit.
These decals (labels) must be replaced if they
become illegible due to abrasion, etc.
It is your responsibility to replace the decals (labels)
when they become hard to read. The location of
these decals and their part numbers for ordering are
shown below.
SAFETY

4
LITTLE
WONDER
HPV
SAFETY

5
LITTLE
WONDER
HPV
SAFETY
1. Read and understand
manual.
2. Wear eye, hearing, and
breathing protection, proper
clothing and footwear.
3. While operating the machine always be sure of a
safe and
secure operating position, maintain a firm footing
and good balance at all times.
4. Keep area clear of children, pets, and
bystanders.
5. Never attempt to use an incomplete machine or
one fitted with an unauthorized modification.
6. Avoid contact with and inhalation of harmful
fluids, gases, mists, fumes, and dust.
7. Do not allow children to operate machine.
8. Do not override or remove any safety devices.
FAN COASTS AFTER THE ENGINE HAS BEEN
TURNED OFF.
12. Keep hands away from hose inlet and discharge
chute.
13. Disconnect spark plug wire before doing any
cleaning or maintenance.
14. Wear gloves to protect your hands.
15. Beware that the machine is loud and, during
normal operation; may interfere with speech
communication.
A. WARNINGS - "DON'TS"
Don’t attempt to remove materials from intake or
discharge when High Performance Vac is running, or
fan is rotating.
Don’t install or remove components while High
Performance Vac is running. Turn off engine to make
changeover. Be sure throttle is in the stop position,
and the High Performance Vac has come to a
complete stop. Remove the spark plug wire from the
spark plug before removing material.
Don’t attempt to repair High Performance Vac. Have
repairs made by qualified Little Wonder dealer or
repairman. See that only Little Wonder and
recommended engine manufacturers replacement
parts are used.
Don’t leave the engine running while the High
Performance Vac is unattended.
Don’t store, spill, or use gasoline near flames or
spark.
ROTATING FAN. DON'T ATTEMPT TO REMOVE
MATERIALS FROM INTAKE OR DISCHARGE
WHEN UNIT IS RUNNING, OR FAN IS
ROTATING.
DO NOT OPERATE UNIT IF EXCESSIVE
VIBRATION OCCURS; SHUT ENGINE OFF
IMMEDIATELY! REMOVE SPARK PLUG
WIRES AND CHECK FOR DAMAGED
IMPELLER, LOOSE IMPELLER BOLT, LOOSE
IMPELLER KEY, OR LODGED FOREIGN
OBJECTS.
DO NOT SMOKE WHEN FILLING FUEL TANK.

6
LITTLE
WONDER
HPV
B. WARNINGS - "DO'S"
Always dress properly. Do not wear loose clothing or jewelry. They can be caught in moving parts. Use of
sturdy gloves, non-skid footwear and safety glasses are recommended.
Always wear ear protectors where possible. Use face filter to avoid breathing dust.
Always stay alert. Watch what you are doing and use common sense. Do not operate High Performance
Vac when fatigued.
Always keep hands away from air intake and air outlet chute. Keep both hands on handles when power is
on.
Always maintain and examine High Performance Vac with care. Follow maintenance instructions given in
manual.
Always store High Performance Vac indoors. When not in use, store High Performance Vac indoors in a
sheltered area (a dry place) where it's not accessible to children. The High Performance Vac, as well as fuel,
should not be stored in a house. Keep throttle in the stop position.
Always be sure High Performance Vac is fully assembled. Never operate High Performance Vac without all
guards and deflectors in place. Ensure that all nuts, bolts, screws are installed and properly tightened.
Always keep the throttle in the “stop” position when not in use.
Always keep a safe distance between two or more operators when working together simultaneously.
SAFETY
DO NOT USE THE HIGH PERFORMANCE VAC IF
THE MUFFLER IS DEFECTIVE OR MISSING.
IF THE HIGH PERFORMANCE VAC IS USED
IMPROPERLY OR SAFETY PRECAUTIONS
ARE NOT FOLLOWED, THE USER RISKS
SERIOUS INJURY TO THEMSELVES AND
OTHERS.
READ AND UNDERSTAND THE FOLLOWING
BEFORE ATTEMPTION TO OPERATE THIS
HIGH PERFORMANCE VAC.
HANDLE FUEL WITH CARE. IT IS HIGHLY
FLAMMABLE. FUELING A HOT ENGINE OR
NEAR AN IGNITION SOURCE CAN CAUSE A
FIRE AND RESULT IN SERIOUS PERSONAL
INJURY AND/OR PROPERTY DAMAGE.

7
LITTLE
WONDER
HPV
SAFETY
C. Engine/ Fuel Warnings - “Don’ts”
Don’t fuel, refuel or check fuel while smoking or near an open flame or other ignition source. Stop engine and
be sure it is cool before refueling.
Don’t leave the engine running while the High Performance Vac is unattended. Stop engine before
transporting High Performance Vac from one place to another.
Don’t start or run this High Performance Vac indoors, or in an improperly ventilated area as poisonous
carbon monoxide and other gasses are emitted.
Don’t run engine when electrical system causes spark outside the cylinder. During periodic checks of the
spark plug, keep plug a safe distance from cylinder to avoid burning of evaporated fuel from cylinder.
Don’t check for spark with spark plug or plug wire removed and grounded. Use an approved tester. Sparks
can ignite fumes.
Don’t run engine when the odor of gasoline is present or other explosive conditions exist.
Don’t operate the unit if gasoline is spilled. Clean up spill completely before starting engine.
Don’t refuel indoors or in an improperly ventilated area.
Don’t operate your High Performance Vac if there is an accumulation of debris around the muffler or
cooling fins.
Don’t touch hot mufflers, cylinders or cooling fins as contact may cause serious burns.
D. Engine/ Fuel Warnings - “Do’s”
Always use fresh gasoline. Stale gasoline can cause difficult starting, poor performance and leakage.
Always pull starter cord slowly until resistance is felt. Then pull cord rapidly to avoid kickback and prevent
arm or hand injury. The use of spark arrestor mufflers is required by law in the state of California (Section
4442 of the California Public Resources Code), as well as in other states or municipalities. Federal laws apply
on federal lands.
Always handle fuel with care; it is highly flammable. Never add fuel to a machine with a running or hot
engine. Do not inhale fuel fumes as they are toxic.
The spark ignition system meets all requirements of the Canadian Interference Causing Equipment
Regulations.

8
LITTLE
WONDER
HPV
ASSEMBLY
ASSEMBLY
1. Attach the collector assembly to the base unit:
• Bolt the collector assembly to the frame with
4 sets of bolts, washer, and nuts
• Slide the rectangular end of the collector
over the housing and mount the flange with 2
sets of washers and nuts
2. Attach the throttle control cable to the handle
on the collector assembly:
• Bolt throttle control lever to handle with
washer and nut
• Secure throttle cable to handle with cable
ties in 2 places
3. Install the band clamp into the debris bag (wear
gloves when handling band clamp):
• Slide the bracket end of the band clamp
through the left side opening of the sleeve on
the debris bag until it emerges from the right
side
• Feed the tail end of the band (on the clasp
side) behind the bracket in the sleeve
• Pinch the wire form on the clasp together
and connect it through 2 holes in the
adjustment bracket such that it will close
tightly over the collector
4. Connect the debris bag by placing it over the
bottom lip of the collector and closing the clasp
to secure the bag. Adjust the clasp wire form to
the appropriate hole position on the bracket to
insure a tight fit. If the bag will not fit tight within
the range of the 3 adjustment holes, insert the
bag seal strap:
• Unhook the wire form from the bracket
• Pull the tail end of the band back out from
behind the bracket
• Feed one end of the seal strap behind the
metal band and through the channel to the
other side
• Tuck the other end of the seal strap behind
the bracket (overlapping the lead end of the
seal strap)
• Feed the tail end of the band clamp behind
the bracket (overlap the seal strap)
• Connect the wire form to the appropriate
holes in the bracket and secure the debris
bag to the collector
5. Attach nozzle assembly to base unit:
• Attach one end of the hose to the nozzle
assembly with the bridge clamp Assembly
• Slide the other end of the hose over the
edge of the inlet on the front plate
• Hook one side of the nozzle bracket over
the front axle
• Bend the other end of the nozzle bracket
inward to hook it over the axle and engage
the pins on the wheel bracket with the slots
on the nozzle bracket
• Secure the hose to front plate inlet with the
bridge clamp
• Attach the nozzle cable end fitting through
the hole in the nozzle bracket
6. To remove nozzle assembly (for purposes of
storage, or clearing blockages):
• Turn engine off and disconnect spark plug
• Loosen hose clamp on the front plate with
flathead screwdriver or 5/16 wrench
• Slide hose off of front plate inlet
• Bend one side of nozzle bracket inward and
twist the assembly to remove the hook from
the axle
• Twist back and lift to remove the other side
of nozzle bracket from the axle
NEVER RUN OR OPERATE YOUR MACHINE
UNLESS DISCHARGE BAG IS ATTACHED,
AND THE INTAKE NOZZLE IS INSTALLED.

9
LITTLE
WONDER
HPV
ASSEMBLY

10
LITTLE
WONDER
HPV
ASSEMBLY
SPEED CONTROLLER SETUP
1. Attach the Lower Connecting Rod Assembly to
the Lower Bellcrank.
•Attach Lower Connecting Rod Assembly to
the Lower Bellcrank using a 3/8"-24 locknut.
•Tighten using 9/16" and 1/2" wrenches.
2. Setup the Speed Controller Mechanism -
Critical for proper operation.
•Verify that the Self-Locking Acorn Nut is
tightened sufficiently to hold the Upper
Connecting Rod Assembly firmly in place. If
not, slightly tighten the Self-Locking Acorn
Nut.
•Verify the Actuator reversing function by
depressing the Reversing Lever (Red) and
then releasing it. It should work smoothly
and, when released, it should fully return to
the "normal" position.
•If the Actuator does not work smoothly, binds
up, or does not fully return to the "normal"
position, loosen the Self-Locking Acorn Nut
slightly and recheck the operation. Repeat
as needed to achieve proper operation.
•Depress the Reversing Lever and then press
lightly on the Bail Handle until the Front Face
of the Rear Slot on the Bail Handle just
touches the Actuator Pin (also refer to
picture in next step below).
•The Front Face of the Rear Slot and the
Actuator Pin Bushing should be in contact
with each other and appear as shown below:

11
LITTLE
WONDER
HPV
•If the Actuator Pin does not enter into the
Rear Slot as shown below, the Upper
Connecting Rod Assembly is too short and
must be lengthened.
•Remove the nut that holds the Rod End to
the Upper Bellcrank.
•Disconnect the Rod End from the Upper
Bellcrank.
•Adjust the Rod End outwards by unscrewing
it counterclockwise.
•Reattach the Rod End to the Upper Bellcrank
and secure it with the nut (hand tightened).
•Repeat this adjustment as needed to position
the Rear Slot and Actuator Pin as shown on
Page 10.
•Remove the nut that holds the Rod End to
the Upper Bellcrank.
•Disconnect the Rod End from the Upper
Bellcrank.
•Adjust the Rod End inwards by screwing it
clockwise.
•Reattach the Rod End to the Upper Bellcrank
and secure it with the nut (hand tightened).
•Repeat this adjustment as needed to position
the Rear Slot and Actuator Pin as shown
above.
•If the Actuator Pin enters into the Rear Slot
as shown below, the Upper Connecting Rod
Assembly is too long and must be shortened.
•While holding the Reversing Lever down,
gradually press down on the Bail Handle.
The Actuator Pin should engage the Rear
Slot smoothly with minimal or no "snapping'
action when the Bail Handle is depressed. It
may be necessary to readjust the Rod End
as described aboe to fine-tune this action.
•Release the Bail Handle. It should return to
its full upright position and the Actuator
Assembly should also return to its "normal"
position as shown below.
ASSEMBLY

12
LITTLE
WONDER
HPV
ASSEMBLY
•Depress the Bail Handle and verify that the
Actuator Pin smoothly engages the Front
Slot on the Bail Handle.
•Verify the forward and reverse operations
several times to assure that the set up is
correct.
•Lock the Rod End of the Upper Connecting
Rod Assembly by holding the Rod End in
position with a 1/2” wrench and then
tightening the nut with a 9/16” wrench as
shown below:
•Verify that Rod End is straight and not
cocked as depicted below:
•Remove the standard 3/8”-24 Nut from the
Rod End of the Upper Connecting Rod
Assembly and replace it with the 3/8”-24
Nyloc Nut. Tighten using both a 9/16” & 1/2”
wrench.
Setup of Speed Controller complete.
HANDLE FUEL WITH CARE. IT IS HIGHLY
FLAMMABLE. FUELING A HOT ENGINE OR
NEAR AN IGNITION SOURCE CAN CAUSE A
FIRE AND RESULT IN SERIOUS PERSONAL
INJURY AND/OR PROPERTY DAMAGE.
PUT OIL AND GASOLINE IN ENGINE
BEFORE STARTING
CGC, Inc. recommends using SAE 30 Oil. The use
of multi-viscosity oil will result in high oil consumption
and possible engine damage.
Add gasoline to the fuel tank, and you are ready to
start.
See Engine Operating & Maintenance instructions for
a more detailed description of type and amount of oil
and gasoline used.
USE OF LIFTING LUG
CGC, Inc.'s High Performance Vac is supplied with a
convenient Lifting Lug that can be used when you
need to move or tie down the unit.
DO NOT USE OR SERVICE THE UNIT WHEN IT'S
SUSPENDED FROM THE LIFTING LUG.
OPERATION
THE OPERATOR OF THIS HIGH PERFORMANCE
VAC IS RESPONSIBLE FOR ACCIDENTS OR
HAZARDS OCCURRING TO HIMSELF, OTHER
PEOPLE OR THEIR PROPERTY.

13
LITTLE
WONDER
HPV
STARTING INSTRUCTIONS
FUEL IS EXTREMELY FLAMMABLE. HANDLE IT
WITH CARE. KEEP AWAY FROM IGNITION
SOURCES. DO NOT SMOKE WHILE FUELING
YOUR EQUIPMENT.
Perform pre-starting checks (engine oil and gas
level, all safety inspections, etc. Read entire Owners’
Manual for all pre-starting information.)
Release the Transaxle Engagement Lever.
Make sure Gas Supply Knob (located above Recoil
Starter) is turned to the On position.
Move Choke Lever (located above and to the left of
the Recoil Starter) to Choke position.
Move Throttle Control Lever (located on Left
Handlebar) to Middle Position or Full Position (toward
Rabbit symbol.)
Pull Recoil Starter Handle slowly until resistance is
felt, then pull firmly to start engine.
When engine starts, slowly move Choke Lever to
the Open position.
Increase Throttle Control Lever to Full Speed if
desired.
NOTE: If engine is difficult to start: Press Belt
Tension Lever down with your left foot before pulling
Recoil Starter Handle. (This disengages the belt for
easier starting). When engine starts, slowly release
your foot from the Belt Tension Lever.
SELF-PROPELLED INSTRUCTIONS
With engine running (and Transaxle Lever in Engage
position) slowly press Bail Handle downward to
selfpropel vacuum FORWARD. The farther down you
press the Bail Handle, the faster the speed of the
vacuum. Slowly release the Bail Handle to reduce
speed or to stop.
To self-propel in Reverse, first press downward on
the Reverse Lever, and (with the Reverse Lever
pressed down) press downward on the Bail Handle.
The farther down you press the Bail Handle, the
faster the speed of the vacuum in REVERSE. Slowly
release the Bail Handle to reduce speed or to stop.
Releasing the Bail Handle at any time stops the
vacuum from movement.
ENGINE EMITS CARBON MONOXIDE. DO NOT
OPERATE OR REFUEL IN ENCLOSED AREA.
OPERATION

14
LITTLE
WONDER
HPV
OPERATION
VACUUMING
Adjust nozzle to desired height by turning the nozzle
control knob, secure position with wing nut.
Vacuum debris from lawn or paved surfaces.
Vacuum the following: leaves, small twigs and sticks,
acorns, thistles, seed pods, grass clippings, straw,
wood chips, dry mulch, litter, small cans & bottles,
paper products, styrofoam products.
Avoid the following: excessively wet surfaces and
debris, gravel surfaces, large hard objects, rocks,
long fibrous materials (vines, rope, string etc). Do not
force anything into vacuum.
EMPTY DEBRIS BAG
Turn off engine and let it come to a complete stop
before removing the debris bag.
Roll vacuum to the desired unloading location
(compost pile, curb-side, wooded area, tarp, etc.).
Open clasp on band clamp to release bag to the
ground. Avoid dragging bag on surface to prolong
bag life.
Empty contents of debris bag (handle straps are
provided on the under side of the bag for aid in
dumping contents).
Reconnect bag to collector.
REFUELING THE ENGINE
Stop engine and allow it to cool for a few minutes
before refueling.
KEEP RECOIL STARTER SCREEN AND ENTIRE
ENGINE CLEAR OF ALL DEBRIS. DO NOT
OPERATE ENGINE WITH AN
ACCUMULATION OF GRASS, DIRT, LEAVES
OR OTHER COMBUSTIBLE MATERIAL NEAR
MUFFLER.
DO NOT OPERATE UNIT IF EXCESSIVE
VIBRATION OCCURS; SHUT ENGINE OFF
IMMEDIATELY! REMOVE SPARK PLUG
WIRES AND CHECK FOR DAMAGED
IMPELLER, LOOSE IMPELLER BOLT, LOOSE
IMPELLER KEY, OR LODGED FOREIGN
OBJECTS.

15
LITTLE
WONDER
HPV
STORAGE & MAINTENANCE
STORAGE
After each use, run HPV with the empty bag attached
to help clear out any loose material in the housing.
When not in use store High Performance Vac in
sheltered area (a dry place) not accessible to
children. Keep throttle in the “Stop” position.
The High Performance Vac, as well as fuel, should
not be stored in a house or poorly ventilated areas.
Do not store fuel in the engine’s gas tank longer than
30 days.
AERA
YREVE ESU YREVE SRH5 TSRIFRETFA ESUFOSRH8 YREVE SRH52 YREVE SRH05
enignE* launaMenignEeeS
rofaerarelffumkcehC sirbedfonoitalumucca X
noitarbivevissecxerofkcehCX
strapdegamadr
oesoolroftcepsnIX
elzzonekatninaelcroftcepsnIX
noitidnocslebaltcepsnIX
levelliokcehCX
egnahCliO* XX
renaelcriaec
ivreS X
gulpkrapstcepsnidnanaelC retserra X
erusserperitkcehCX
reporproflortnocdeepstcepsnI noitarepo X
,raewev
issecxeroftleBVkcehC .cteskcarc X
htoomsrofsyellupreldikcehC noitarepo X
* See Engine Operating & Maintenance instructions for mor detail maintenance and service schedule.
** Change oil every 25 Hrs if operating under heavy load or high ambient temperatures.

16
LITTLE
WONDER
HPV
SERVICE
IMPORTANT INFORMATION
A. Introduction
On behalf of everyone at CGC, Inc., we would like to
thank you for your purchase of a Little Wonder High
Performance Vac. This professional debris handling
machine was designed to the highest standards to
ensure you many hours of uninterrupted service.
This manual provides the information necessary for
safe and efficient operation and service. For your
safety, it is critically important that you read and
understand this entire manual before operating your
High Performance Vac.
Specifications:
Model Dry Weight Max Rpm
5621 ............................. 258lbs. ...............3400
5631 ............................. 260lbs. ...............3400
B. Service Information
High Performance Vac Unit
Contact your local Little Wonder dealer.
Engine:
Contact an authorized Briggs & Stratton dealer.
Dealers are listed in the Yellow Pages under “Lawn
and Garden Equipment Supplies”, “Lawn
maintenance” or “Lawn Mowers”. Your dealer will
need to know the model and serial number of your
engine. For their location, please consult the
operator’s manual provided with your engine.
REMOVING BLOCKAGE IN MOVING
PARTS
Support the housing with 2x4 lumber so that the front
wheels are 1” above the ground.
Chock the rear wheels with blocks.
Remove the nozzle assembly from the front plate.
(See Assembly Instruction 6.)
Remove the front wheel assembly.
Remove the front plate.
Wear gloves and clear out debris from around the
impeller and housing.
TURN OFF ENGINE BEFORE YOU DISCONNECT
HOSE, AND MAKE SURE ALL MOVING
PARTS COME TO A COMPLETE STOP.
BE SURE THROTTLE IS IN "STOP" POSITION,
AND FAN HAS COME TO A COMPLETE
STOP.
DISCONNECT THE SPARK PLUG WIRES
BEFORE ANY CLEANING OR MAINTENANCE!
WEAR GLOVES, THE CLOG MAY CONTAIN
SHARPMATERIALS.

17
LITTLE
WONDER
HPV
SERVICE
REMOVING THE FAN AND
REINSTALLATION
Remove spark plug wire from spark plug.
Remove nozzle assembly.
Remove front plate assembly.
Remove the bolt that secures the fan to the engine
crankshaft.
The fan has a 3/4-16 nut welded on the fan hub.
Insert a 3/4-16 x 5" long grade 5 (or better) bolt and
jack or push the fan off the engine. (CGC, Inc.
P/N 910505 pressure screw is recommended.)
Replace damaged or worn fan with a new one. If
during fan removal the key (#915) was removed from
the keyway, reinstall it by applying a few drops of the
Loctite 380 instant adhesive (“Black Max” P/N
38050) on the key, and load the key in the keyway of
the shaft. (Cure time is approx. 1 min.)
Use a new bolt (#600524) (add Loctite 242 to new
bolt) and washer (#910527) and complete fan
installation. Insure a secure fit upon re-assembling.
Torque bolt to 39-51 Ft. lbs.
CHANGING V-BELT
Turn off engine. Remove Spark Plug Wire from park
Plug. Chock or block wheels of vacuum to prevent it
from rolling.
Remove Debris Bag from vacuum.
Remove 3 hex head bolts that attach Belt Guard to
Deck. (Use 7/16” wrench or socket.) Set Belt Guard
aside.
Note how V Belt goes around each of 4 pulleys
and how it “twists.”
Remove 4 hex head bolts that attach Recoil Starter
Cover to Engine Standoffs. (Use 8 millimeter nut
driver, socket or wrench.) Remove Recoil Starter
Cover.
Loosen (but do not remove) 2 hex head bolts that
attach Fixed Idler Bracket to Deck.
(Use 7/16” wrench or socket.) This allows clearance
for belt to be removed.
Press down on Belt Tension Lever and lift V Belt off
its pulley. Release Belt Tension Lever. Remove V
Belt from Engine Pulley.
Remove V Belt from large horizontal pulley of
transaxle (under Deck.) Pushing V Belt forward with
both hands, then lifting V Belt up, then pulling V Belt
backwards should remove it from large pulley.
Remove V Belt from under Deck.
Reverse above steps to replace V Belt. Install V Belt
with the same “twists” that the old V Belt made
around the pulleys. Make sure the “V” side of the V
Belt goes into each pulley. Before replacing Belt
Guard or starting engine, pull Recoil Starter Handle
several times to make sure V Belt rides in the
grooves of each pulley.
Make sure Belt Tension Lever and return spring
operate smoothly. If it sticks or does not operate
smoothly, lubricate the Belt Tension Lever and its
mounting bracket with a few drops of Motor Oil, or
other medium weight oil. Push Belt Tension Lever
down and release it several times to allow lubrication
to penetrate between lever and mounting bracket.
Proper operation of the Belt Tension Lever and its
return spring will insure that your V Belt will operate
properly and last many hours of use.

18
LITTLE
WONDER
HPV
PARTS ASSEMBLY
FIGURE 1
59 29
30
14
12
17
16
17
30
14
13
29
11
12
46
10
52
45
9
40
49
8
33
42
50
6
7
31
55
32
15
56
25
28
3
46
39
46
25
39
39
56
46 15
32
55
31
26 24
41
53
38
2
5
54
36
46
35
44
4
21
22
23
19
45
18
47
52
45
46
1
34
51
43
58
60
CONNECT TO ENGINE
THROTTLE LEVER
37
20
57
48