Smithco 73-000-B User manual

Product Support: Hwy SS & Poplar Ave; Cameron WI 54822
1-800-891-9435 [e-mail]
Operator’s
Big Vac Engine Drive
73-000-B
SN: 73045
October 2010

Introduction Service Diagrams Parts Accessories Reference
CONTENTS
Introduction..........................................1-10
Introduction..........................................................................1-11
Introduction..............................................................................1
Symbols................................................................................2-3
Safe Practices.........................................................................4
Specifications ..........................................................................5
Optional Equipment.................................................................5
Setup ....................................................................................6-7
Controls & Instruments............................................................8
Operation................................................................................. 9
Battery ...................................................................................10
Overloading Debris Hopper and Vacuum Housing Wear ..... 11
Diagrams ........................................................................... 12-15
Wiring Drawing ................................................................ 12-13
Hydraulic Drawing............................................................ 14-15
Other ........................................................................................16
Declaration of Conformity-English .............................................
Warranty .....................................................................................

1
Introduction
Informationneededwhenorderingreplacementparts:
1. ModelNumber ofmachine
2. SerialNumber ofmachine
3. Nameand Part Numberofpart
4. Quantityof parts
INTRODUCTION
Thankyou for purchasing a product.
Read this manual and all other manuals pertaining to the Big Vac V72-E carefully as they contain safety, operat-
ing, assembly and maintenance instructions. Failure to do so could result in personal injury or equipment dam-
age.
Keepmanuals in a safe placeafteroperator and maintenance personnel havereadthem. Right and left sidesare
fromthe operator’s seat,facing forward.
All machineshave a Serial Numberand Model Number. Both numbers areneeded when ordering
parts. The serial number plate on the Big Vac is located on the front cross member of the frame.
For easy access record your Serial and Model numbers here.
lb/kg Empty lb/kg Full

2
Introduction
SYMBOLS
ParkBrake ParkBrake
Release HydraulicOil
Level
Choke- OpenChoke- ClosedHandThrottle
HourMeter HourMeter Fuse
GlowPlugGlowPlug - OffGlow Plug - On
RPM Gasoline Diesel
Water
Temperature
Temperature
Light
EngineOil
Engine - Stop Engine - Start Engine-Run
No Electrical
Power
ElectricalPower
ReadOperator’s
Manual
Off / Stop On / Start

3
Introduction
SYMBOLS
NoSmoking Moving Parts Manual
Operation
Pinch Point Step HotSurface
HydraulicFluid
Penetration LiftArm Tractor
Engage Disengage PTO
GroundSpeed Fast Slow
HHigh LLow FForward
RReverse NNeutral Warning
Danger
Caution
Up/RaiseDown/LowerUp/DownArrow

4
Introduction
SAFEPRACTICES
1. It is your responsibility to read this manual and all publications associated with this machine (engine, accesso-
ries and attachments).
2. Never allow anyone to operate or service the machine or its attachments without proper training and instructions.
Never allow minors to operate any equipment.
3. Learn the proper use of the machine, the location and purpose of all the controls and gauges before you operate
the equipment. Working with unfamiliar equipment can lead to accidents.
4. Wear all the necessary Personal Protective Equipment (PPE) on your head, eyes, ears, hands and feet. Ear and
eye protection are required. Operate the machine only in daylight or in good artificial light.
5. Inspect the area where the equipment will be used. Beware of overhead obstructions and underground ob-
stacles. Stay alert for hidden hazards.
6. Never operate equipment that is not in perfect working order or without decals, guards, shields, or other protec-
tive devices in place.
7. Never disconnect or bypass any switch.
8. Carbon monoxide in the exhaust fumes can be fatal when inhaled, never operate a machine without proper
ventilation.
9. Never use your hands to search for oil leaks. Hydraulic fluid under pressure can penetrate the skin and cause
serious injury.
10. This machine demands your attention. To prevent loss of control or tipping of the vehicle:
A. Use extra caution in backing up the vehicle. Ensure area is clear.
B. Do not stop or start suddenly on any slope.
C. Reduce speed on slopes and in sharp turns. Use caution when changing directions on slopes.
D. Stay alert for holes in the terrain and other hidden hazards.
E. Operate equipment up and down slopes, never across the face.
11. Before leaving operator’s position for any reason:
A Disengage all drives.
B. Lower all attachments to the ground.
C. Shut engine off and remove the ignition key.
12. Keep hands, feet and clothing away from moving parts. Wait for all movement to stop before you clean, adjust or
service the machine.
13. The rubber fingers, sweeper and vacuum pick up and propel debris and small objects in the machines path
during operation. Keep the area of operation clear of all bystanders.
14. Never carry passengers.
15. Use parts and materials supplied by SMITHCO only. Do not modify any function or part.
16. Avoid sharp turns. Watch the tires of the tractor while turning to make sure they do not contact the tongue of the
BigVac.
17. Shut down power source before attempting to unclog any part of the machine.
18. If reel deck and/or blower began to vibrate abnormally, immediately shut off power and determine the cause.
These machines are intended for professional maintenance on golf courses, sports turf, and any other
area maintained turf and related trails, paths and lots. No guaranty as to the suitability for any task is
expressed or implied.

5
Introduction
SPECIFICATIONS FORBIGVACENGINEDRIVE
WEIGHTSANDDIMENSIONS
Length 180"(458 cm)
Width 84"(214cm)
Height 87"(221cm)
Weight 2950lb (1338 kg)
SOUNDLEVEL
Atear level 98 dBA
At 30 ft (9.14 m) 92.5 dBA
ENGINE
Make Briggs&Stratton
Model# 543477
Type/Spec 0175G1
Horsepower 31 Hp (23 kW)
Fuel Unleaded87Octane
GasolineMinimum
CoolingSystem Air Cooled
LubricationSystem Full Pressure
Alternator 20Amp
TIRES&WHEELS Two26.5- 1400 x 12 NHS (18 psi(1.3 bar)) FairwayTypeTurfTires
Castor: 13 x 5 x 6 (20 psi (1.4 bar))
BATTERY(optional) Automotive type 45 -12volt
BCIGroup Size 45
ColdCrankingAmps 480minimum
GroundTerminalPolarity Negative(-)
MaximumLength 9" (23 cm)
Maximum Width 5.38" (14 cm)
MaximumHeight 9" (23 cm)
FLUIDCAPACITY
CrankcaseOil See EngineManual
Fuel 6 gallon(22.7 liters)
HydraulicFluid 3.2 gallon (12.2 liters)
Grade of HydraulicFluid SAE 10W-40API Service SJ or higher Motor Oil
OPTIONALEQUIPMENT
72-002 RubberFingerSweeperHead 73-003 StandardClevisHitch
72-005 NylonBrush Head 73-004 5th Wheel Hitch for Turf Trcukster w/ Electric brakes
72-006 ReplacementBrush Reel 73-005 5thWheelfor Tractor
22-073 Battery 73-006 Vacuum Hose HandHeld

6
Introduction
SETUP
The Big Vac V72-E arrives from with some setup required.
1. You will need a 40 HP (minimum) tow vehicle to remove the Big Vac V72-E from the trailer.
a. Clevis Hitch - You will need a 3/4diameter by 4" pin with some type of lock.
b. 3-Point Ball Hitch (optional) - You will need a 2" ball and a locking pin for the coupler.
2. Crank the jack on the Big Vac V72-E up so you can hook to tow vehicle.
3. Check the tire pressure. Big Vac V72-E: 18 psi (1.3 bar) Castor Wheels: 20 psi (1.4 bar).
4. Check hydraulic fluid level in tank. Look at the sight gauge on the front left side of the tank. The oil level should be
at 90°C (194°F). If level is low, add SAE 10W-40 API Service SJ or higher motor oil.
5. Machine should be greased before starting. See Maintenance part of manual.
6. Lower reel all the way down. Place rubber boot onto the bottom of the blower housing. Raise the reel up 3/4 of the
way. Stretch rubber boot around lip on reel. Lift and lower several times to ensure boot is on properly.
7. Read operating instructions before starting.
Connecting battery cables to the wrong post could result in
personal injury and/or damage to the electrical system.
Make sure battery and cables do not interfere or rub on
any moving part. Connect the red positive(+) cable (A) to
the battery first. When disconnecting remove the black
negative(-) cable (B) first.
7. Check the engine oil and add as necessary. The dip stick is located
on the right side, to the back of the engine. Oil fill is located on top of
valvecover,useSAE 10W-40APIServiceSJ or higher motoroil.DO
NOTOVERFILL.
8. Check coolant level. Coolant tank is located on the left side of the
engine.
9. Fill fuel tank, located on right side, with Unleaded 87 Octane gasoline (minimum).
Fuel is flammable. Caution must be used when storing or handling it. Do not fill fuel tank
while engine is running or in an enclosed area. Fumes are explosive and dangerous to
inhale. DO NOT SMOKE while filling the fuel tank. DO NOT OVERFILL.
10. Check hydraulic fluid level intank. Remove cap and add SAE 10W-40APIService SJ or higher motor oil if
necessary. Fluid level should be about 2"-21/2" (5 - 6.4 cm) from the top of the tank when cold.
11. Machine shouldbe greased before starting. SeeMaintenance part of manual.
12. Readoperatinginstructions before starting.

7
Introduction
SETUP
Before servicing or making adjustments to machine, stop engine on tow vehicle and remove key from
ignition.
Use all procedures and parts prescribed by the manufacturer's. Read the engine manual
before operation.
LUBRICATION
UseNo.2GeneralPurpose Lithium Base
Grease and lubricate DAILY. The Big Vac
has 13 grease fittings. All bearings are
sealedbearings. When inserting grease,
be careful not to ruin the seal, if this hap-
pens, replace the bearing at once. Be
sureto wipe grease fitting cleanbefore
injecting grease. Give only one or two
pumpsof grease at each lubrication.
REF# LOCATION
1 One on all four castor
wheels.
2 Two onthefan shaft.
3 Oneoneachmountedbearingforreelshaft.
4 One on all four castor wheel mount brackets.
5 One on the jack stand.
HYDRAULICOIL
1. Use SAE 10W-40API Service SJ or higher motor oil.
2. Forproper warranty,changeoil every 500 hours orannually, which ever is firstandchange the filter after
thefirst 20 hours, then at 100 hours, thenevery250hours thereafter.
3. Inspect hydraulic lines for damage or leaks. Never use hands to inspect leaks.
4. Check hydraulic fluid level in tank. Look at the sight gauge on the front left side of the tank. The oil level
should be at 90°C (194°F). If level is low, add SAE 10W-40API Service SJ or higher motor oil.
5. Afterchanging oil and/orfilter, operate themachinefora few minutes. Check oil level and for leaks.
6. Always use caution when filling hydraulic oil tank or checking level to keep system free of contaminants.
Checkandservice more frequently when operating in extremely cold, hot or dustyconditions.
7. If natural color of fluid is now black or smells burnt, it is possible that an overheating problem exists.
8. If fluid becomes milky, water contamination may be a problem.
9. Ifeither of the above conditions happen, changeoiland filter immediately after fluid is cool andfindcause.
Take fluid level readings when system is cold.
10. In extreme temperatures you can use straight weight oil. We recommend SAE 30WAPI Service SJ or
higherwhen hot (above90°F(33°C)) and SAE10WAPI Service SJor higher whencold(below 32°F (0°C))
ambient temperature. Use either motor oil or hydraulic oil, but do not mix.
11. Oil being added to the system must be the same as what is already in the tank. Mark tank fill area as to
which type you put in.

8
Introduction
CONTROLS&INSTRUMENTS
A. Oil Light - The oil light should come on when ignition is on without engine running. The oil light will
light when the oil pressure is low. If oil light should come on, shut off engine immediately and find the
cause.
B. Hour Meter -The hour meter indicates hoursofmachine operation. The hour meteroperateswhen
ignition switch is on.
C. Tailgate Lever - The tailgate lever is used to open and close the tailgate. Refer to decal for direction.
D. Reel Off-On Valve - Turns the reel on or off. Refer to decal for direction.
E. Ignition Switch - The ignition switch has three positions: Off - Run - Start.
F. Hand Throttle - The hand throttle is used to regulate engine speed.
G. Reel Lift Lever - The reel lift lever is used to raise and lower the reel. Refer to decal for direction.
(Optional)
HOPPERLIFTSAFETY
The Hopper Lift Safety is used to support the
ramonthehopperbottomintheextended
position so you may service or repair the
machineunderthe hopper.Whennot in use
the Hopper Lift Safety can be stored on the
hopperbedframe.

9
Service
OPERATION
Before operating this machine, become familiar with all controls and functions of this unit and the tow vehicle.
Alsocompleteall maintenance requirements and read all safety warnings. By knowing bothmachinesthor-
oughly, how it operatesandby doing the prescribed maintenance steps,you can expect relatively trouble-free
operationfor years to come.
TOWVEHICLE
You will need a 40 HP minimum tow vehicle.
1. Clevis Hitch - You will need a 3/4diameter by 4" pin with some type of lock.
2. 3-Point Ball Hitch - You will need a 2" ball and a locking pin for the coupler.
DAILYCHECKLIST
1. Check engineoillevel in tow vehicle. Add as needed. DONOTOVERFILL.
2. Tire pressure should be 18 psi (1.3 bar) on Big Vac tires and 20 psi (1.4 bar) on castor wheels.
3. Check hardware for loose or missing nuts, bolts, screws, etc., and tighten or replace as needed.
4. Inspect hydraulic lines for damage or leaks. Never use hands to inspect leaks.
5. Check hydraulic fluid level in tank. Look at the sight gauge on the front left side of the tank. The oil level
should be at 90°C (194°F). If level is low, add SAE 10W-40API Service SJ or higher motor oil.
6. Checkcontrols for smooth, properworkingoperation. Lubricate as needed.
7. Checkand clean all debris fromblowerhousing.
ADJUSTMENTOFBELTTENSIONER
There are four maximum belt tensioners on the Big Vac. Two control the tension
on the belts on the blower housing, one each on the finger reel and the thatcher
reel. The proper tension of the idler should be 12 to 15 as per the gauge (A) on
the side of the tightener. Over tightening the belt will shorten the life of the belt
and the machine may not perform to the best of its ability. To adjust belt
tensioner, loosen bolt holding tensioner. Bring idler pulley tight to belts and turn
tensioner into belts to 15°. Tighten holder bolt.
STARTING ENGINE
1. Makesure the fuel flow valve,located on the fuel tank, is “ON.”
2. The ignition switch is located on remote operator control panel. Insert key (A)
and turn clockwise until engine starts (C). Release key and it will return to run
position (B). Use choke and hand throttle as necessary.
3. Allow engine to idle and warm up a few minutes.
4. Be sure the jack is all the way up and will clear all ground ob-
stacles.
CONTROLPANELADJUSTMENTARM
On the right hand side of machine is the adjustment lock arm, by lifting
upyou can adjust the control panel bymovingit forward or rearward.
Make certain that the lock arm is locked back in place after adjustment.
For up and down adjustment loosen the four adjustment bolts place the
control panel to where you want it and tighten the four bolts.

10
Introduction
BATTERY
BATTERY
Batteries normally produce explosive gases which can cause personal injury. Do not allow flames, sparks or any
ignited object to come near the battery. When charging or working near battery, always shield your eyes and
alwaysprovideproper ventilation.
Batterycable should be disconnected beforeusing“Fast Charge”.
Charge battery at 15 amps for 10 minutes or 7 amps for 30 minutes. Do not exceed the recommended charging
rate.If electrolyte startsboiling over, decrease charging.
Alwaysremovegrounded (-) battery clamp first and replace it last.Avoidhazards by:
1. Fillingbatteries in well-ventilatedareas.
2. Weareye protection andrubber gloves.
3. Avoidbreathing fumes whenelectrolyteis added.
4. Avoidspilling or dripping electrolyte.
Battery Electrolyte is an acidic solution and should be handled with care. If electrolyte is
splashed on any part of your body, flush all contact areas immediately with liberal amounts
of water. Get medical attention immediately.
JUMPSTARTING
Use of booster battery and jumper cables. Particular care should be used when connecting a
booster battery. Use proper polarity in order to prevent sparks.
Tojumpstart (negativegrounded battery):
1. Shield eyes.
2. Connect ends of one cable to positive (+) terminals of each battery, first (A) then (B).
3. Connectone end of other cabletonegative (-) terminal of "good" battery(C).
4. Connectother end of cable (D) to engineblockon unit being started (NOT tonegative(-) terminal of
battery)
To prevent damage to other electrical components on unit being started, make certain that engine is at idle
speedbefore disconnecting jumpercables.

11
Introduction
OVERLOADINGDEBRISHOPPERANDVACUUMHOUSINGWEAR
SMITHCOSWEEPER-VACSAREDESIGNEDTOCARRYTHEFOLLOWINGMAXIMUMLOADS:
Model 73-000 Big Vac V72E 1500 lbs. (608 kg)
Model72-000 Big VacV72 1500lbs.(608 kg)
PLEASENOTE THEFOLLOWING:
1. Loadsheavier than that will damage theunit.
2. Suchdamage is not covered by warranty.
3. Overloadingis particularly easy whencollectingaerifier cores.
4. The hoppers on the Big Vac are large in order to hold 7 and 4 cubic yards respectively, of thatch, grass
clippings,leaves and trash.
5. They will not hold 7 or 4 cubic yards of aerifier cores.
6. Themaximum depth (in the debris hopper)ofaerifier cores is:
Model73-000 Big Vac V72E 12 in. (30 cm)
Model72-000 BigVac 12 in. (30 cm)
VACUUMHOUSINGWEAR
TheBigVac are fitted withawearresistantliner in the vacuum housing.This will provide additional housing life.
Be sure the following points are explained to the user:
1. The vacuum housing and impeller must be cleaned each time the unit is used so the housing liner is
inspecteddaily. Only Smithco Sweeper-Vacs provide a clean out/inspection port for easy inspection and
cleaning.
2. When bare steel is visible at any point in the housing lining, the lining must be replaced. It is expected the
linerwill wear and be replaced. It isavast improvement over competitive units withnoliners.
3. Replacementof the liner or the vacuum housing duetiwearis normal and is not covered by warranty.
4. Collectionof aerifier cores causes extreme wear on theliner(and if unchecked, on the housing).
5. Caution users that, while Smithco Sweeper-Vacs do an excellent job collecting cores, the lining (and the
housing) will wear quickly in such use.
RUBBERIZEDBOOT
Therubberized boot between main unitandsweeper head is subject towearand damage from debris. Unless
defective,replacement of this boot isnotcovered by warranty.
STORAGE
1. Beforestoring clean machinethoroughly.
2. Check bolts and nuts, tighten as necessary.
3. Makeall repairs that are neededandremove any debris.
4. Store in a clean and dry area.

12
Diagrams
WIRINGDRAWING

13
Diagrams
WIRINGPARTSLIST
REF# PART# DESCRIPTION QUANTITY
1 78-368 Electric Clutch 1
2 15-314 ToggleSwitch 1
15-472 Switch Boot 1
3 12-017 HourMeter 1
4 13-488 IgnitionSwitch 1
5 78-340 Oil Light 1
6 Plugon Engine 1
7 8975 30Amp Circuit Breaker 1
8977 CircuitBreaker Boot 1
8 48-147 Battery Cable Black 1
9 22-073 Battery (optional) 1
10 75-718 Red Battery Cable with Boot 1
78-442 Wire Harness (includes all wire colors with *)

14
Diagrams
HYDRAULICDRAWING

15
Diagrams
HYDRAULICPARTSLIST
REF# PART# DESCRIPTION QUANTITY
1 10-187 HydraulicCylinder 1
14-273 Seal Kit
HCP-12-200 Clevis Pin 1/2x 2 2
HP-18-100 Cotter Pin 1/8x 1 2
2 73-012 HydraulicHose 186" 1
3 73-011 Hydraulic Hose 206" 1
4 18-169 Adapter 3/8SAE 1
5 78-365 Adapterwith Orfice 1
6 60-473 OilTank 1
13-747 FillerBreather 1
13-586-03 Neck 1
7 17-019 MaleElbow 1
8 18-190 Tee 1
9 23-142 Connector 1
10 8917-9 5/8Suction Hose 9" 1
18-040 HoseClamp 2
11 73-015 Hydraulic Hose 90" 1
12 73-017 Hydraulic Hose53" 1
13 72-040 HydraulicCylinder 1
72-040-01 Seal Kit
14 23-184 MaleConnector 2
15 72-075 HydraulicHose 1
16* 72-199 HydraulicMotor 1
17 72-074 HydraulicHose 1
18 72-043 Quick Coupler 1/2" Male End 2
19 72-046 Quick Coupler 1/2" FemaleEnd 2
20* 78-413 HydraulicPump 1
21 23-006 Oil Filter 1
23-031 ReplacementFilter
22 73-016 Hydraulic Hose90" 1
23 73-013 Hydraulic Hose118" 2
24 73-014 Hydraulic Hose94" 1
25 78-416 Hydraulic 3-BankBank Valve 1
* No other parts are replaceable for hydraulic motor or pump.
HYDRAULICPRESSURES Front Rear
PumpDisplacement .90in3/rev .40in3/rev
PumpInput Speed (upto) 4000rpm 4000rpm
Max.Operating Pressure 3600 psi 3600psi
Max. Inlet Vacuum 10 in. Hg 10 in. Hg
Max. Case Pressure 80 psi 80 psi

16

Product Support: Hwy SS & Poplar Ave; Cameron WI 54822
1-800-891-9435 [e-mail]
Operator’s
Big Vac Engine Drive
73-000-A
SN: 73001
January, 2006

Introduction Service Diagrams Parts Accessories Reference
CONTENTS
Introduction..........................................1-10
Introduction..........................................................................1-10
Introduction..............................................................................1
Symbols................................................................................2-3
Safe Practices.........................................................................4
Specifications ..........................................................................5
Optional Equipment.................................................................5
Setup .......................................................................................6
Overloading Debris Hopper and Vacuum Housing Wear .......7
Controls & Instruments............................................................8
Operation................................................................................. 9
Battery ...................................................................................10
Diagrams ........................................................................... 12-15
Wiring Drawing ................................................................ 12-13
Hydraulic Drawing............................................................ 14-15
Other ........................................................................................16
Declaration of Conformity-English .........................................16
Warranty ....................................................... Inside Back Cover