GVM-VAC GVM8000 User manual

Belt Driven Leaf Collector
Owner's Manual
Safety Manual
Pre-Operating Manual
Operating Manual
Maintenance Manual
Service Manual
Parts Catalog
Belt Driven Leaf Collector
GVM8000
GVM8000
GVM-VAC
800-632-7989
www.GVM-VAC.com
October 2013 edition
314201

IMPROPER USE OF ANY MACHINE CAN
RESULT IN SERIOUS INJURY!
STUDY AND FOLLOW ALL SAFETY
PRECAUTIONS BEFORE OPERATING OR
REPAIRING UNIT
DO NOT ATTEMPT TO OPERATE
OR REPAIR
THE LEAF COLLECTOR WITHOUT FIRST
READING AND UNDERSTANDING THIS
MANUAL
IF YOU HAVE ANY QUESTIONS CONCERNING THE
INSTALLATION OR OPERATION OF THIS UNIT, PLEASE CALL
GVM-Vac FOR ASSISTANCE BEFORE ATTEMPTING TO REPAIR
OR OPERATE THE UNIT.
THIS MANUAL IS AN INTEGRAL PART OF THE LEAF COLLECTOR AND SHOULD
BE KEPT WITH THE UNIT WHEN IT IS SOLD.

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SAFETY PRECAUTIONS
Read and understand this entire manual before operating, maintain-
ing or repairing the leaf vacuum.
DO NOT RIDE, SIT OR STAND ON UNIT
DO NOT MODIFY THE UNIT FOR RIDERS IN ANY
WAY. SERIOUS INJURY OR DEATH MAY OCCUR
If the decal above is missing or damaged call GVM-Vac immediately and we will send you a replacement
free of charge. Never operate a unit with damaged or missing safety decals.
GVM-Vac’s leaf collectors are NEVER to be used to accomodate riders. If your unit has been modi-
ed to accomdate riders, remove these modications immediately as this can result in serious injury
or death.

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GVM-VAC
800-632-7989
www.gvm-vac.com
Thank you and Congratulations on your puchase of your GVM-Vac Leaf Collector. Your GVM-
Vac leaf collector has been carefully designed and manufactured to give you a maximum amount
of dependability and years of trouble-free operation. Take comfort in the fact the GVM-Vac has
been manufacturing municipal products since 1910 and takes pride in our product's quality and our
customer service.
Please take the time to thoroughly read this manual, as well as the engine manual, in its entirety be-
fore operating, maintaining, servicing or repairing your leaf collector. Please thoroughly review and
follow all the safety procedures located in this manual.
Whenever you need replacement parts, service information or any question regarding your GVM-
Vac product please feel free to contact us at 800-632-7989 or www.GVM-Vacco.com.
Please record the following information for future reference:
THANK YOU
Model No.:
Serial No.:
Vin No:
Engine Serial No.:
Date of Purchase:

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TABLE OF CONTENTS
Read and understand this entire manual before operating, maintaining or repair-
ing the leaf vacuum.
Contents
1.0 GENERAL SAFETY
1.1 Safety Symbol Denitions ....................................................................................................................10
1.2 Do’s and Do Not’s:.................................................................................................................................11
1.3 Training:.................................................................................................................................................13
1.4 Safety Decals ......................................................................................................................................14
1.5 VIN And Serial Number Locations........................................................................................................16
2.0 PRE-OPERATING SECTION
2.1 Instrument and Controls: .......................................................................................................................18
2.2 Safe Operations:.....................................................................................................................................20
2.3 Preparation For Operation......................................................................................................................22
2.4 Pre-Transport Checks.............................................................................................................................23
2.5 Personal Protective Equipment and Clothing ........................................................................................25
2.6 Work Site Preparation ............................................................................................................................26
3.0 OPERATING SECTION
3.1 Starting Engine.......................................................................................................................................28
3.2 Engaging the PTO..................................................................................................................................30
3.3 Fluid Drive Coupler (if equipped) .........................................................................................................32
3.4 Vacuuming Leaves .................................................................................................................................33
4.0 MAINTENANCE SECTION
4.1 Maintence Overview:.............................................................................................................................35
4.2 Maintenance and Lubrication ...............................................................................................................36
4.3 Lubrication:............................................................................................................................................37
4.4 Preventative Maintenance......................................................................................................................40
4.5 Torque Values ........................................................................................................................................44
5.0 SERVICE SECTION
5.1 Engine Electrical Troubleshooting Guide..............................................................................................48
5.2 Auto Mfg. Clutch Adjustment - 2008 and after .....................................................................................49
5.3 Hydraulic Boom Troubleshooting Guide...............................................................................................50
5.4 Impeller Installation and Removal.........................................................................................................51
5.4 Impeller Installation and Removal, continued.......................................................................................52
5.5 Belt Adjustment and Replacement Guide ..............................................................................................53
5.6 Flange Bearing Installation and Removal..............................................................................................54
5.7 Impeller Installation and Removal.........................................................................................................55
5.8 Replacing the Blower Housing Liners...................................................................................................56
5.8 Replacing the Blower Housing Liners; continued,................................................................................57
5.10 WIRING DIAGRAMS
5.10.1 Engine Wiring Diagram ....................................................................................................................59
5.10.2 Engine Main Harness - Enlarged ......................................................................................................60
5.10.3 Auxillary Engine Harness - Enlarged................................................................................................61

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TABLE OF CONTENTS
Read and understand this entire manual before operating, maintaining or repair-
ing the leaf vacuum.
5.10.4 Engine Wiring Harness Descriptions..................................................................................................... 62
5.10.4 Engine Wiring Harness Descriptions, continued ................................................................................... 63
5.10.5 Engine Rocker Switch Wiring Diagrams............................................................................................... 64
5.10.5 Main Circuit Board ................................................................................................................................ 65
5.10.6 Main Circuit Board Plug Diagrams ....................................................................................................... 66
5.10.7 Trailer Plug Wiring Diagram ................................................................................................................. 67
5.10.8 Trailer Wiring Diagram.......................................................................................................................... 68
5.10.9 Brake Wiring Harness ........................................................................................................................... 69
5.10.10 Boom Wiring Diagram......................................................................................................................... 70
5.10.11 Remote Throttle / Clutch Wiring Harness ........................................................................................... 71
6.0 ENGINE GROUP
6-0 ..................................................................................................................................................................... 73
6.1 Instrument Panel Group ............................................................................................................................. 74
6.2 Air Cleaner Group....................................................................................................................................... 75
6.3 Strobe Light Parts Group ............................................................................................................................ 76
6.4 Sheet Metal Group ...................................................................................................................................... 77
6.5 Engine Mount Group .................................................................................................................................. 78
6.6 Mufer (Exhaust) Assembly....................................................................................................................... 79
6.7 Radiator Assembly Group........................................................................................................................... 80
6.8 Engine Senders / Switch Group ................................................................................................................. 81
6.9 Battery Group.............................................................................................................................................. 82
6.10 Engine Miscelleous Parts Group............................................................................................................... 83
6.11 Remote Clutch / Throttle Circuit Board Assembly ................................................................................... 84
6.12 Remote Clutch and Remote Throttle Assembly........................................................................................ 85
6.13 Chaffe Eliminator Assembly, hinged ........................................................................................................ 86
7.0 CLUTCH GROUP
7-0 ..................................................................................................................................................................... 87
7.1 AutoHD PTO Clutch Group........................................................................................................................ 88
7.2 AutoHD PTO Assembly Group .................................................................................................................. 89
7.3 AutoHD PTO Linkage Group ..................................................................................................................... 90
7.4 Clutch Assist Group .................................................................................................................................... 91
7.5 Kraft Fluid Drive Group (Optional)............................................................................................................ 92
7.6 Kraft Fluid Drive Installation (Optional).................................................................................................... 93
7.7 Kraft Fluid Drive Breakdown (Optional) ................................................................................................... 94
7.8 Kraft Fluid Drive Common Parts (Optional).............................................................................................. 95
8.0 BLOWER HOUSING GROUP
8-0 ..................................................................................................................................................................... 96
8.1 Blower Housing Group............................................................................................................................... 97
8.2 Blower Housing Face Group - LCT600...................................................................................................... 98
8.3 Belt Drive Assembly ................................................................................................................................... 99
8.4 Pedestal Group.......................................................................................................................................... 100

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8.5 Exhaust Duct Assembly .............................................................................................................................. 101
9.0 TRAILER GROUP
9-0 ..................................................................................................................................................................... 102
9.1 Trailer Bed Group ....................................................................................................................................... 103
9.2 Fuel Tank Group ......................................................................................................................................... 104
9.3 Tongue Group ............................................................................................................................................. 105
9.4 Hydraulic Parking Jack - OPTIONAL........................................................................................................ 106
9.5 Axle Hub Assembly .................................................................................................................................... 107
9.6 Brake Assembly .......................................................................................................................................... 108
10.0 TRAILER GROUP
10-0 ................................................................................................................................................................... 109
10.1 Boom Group.............................................................................................................................................. 110
10.2 Intake Hose Group .................................................................................................................................... 111
10.3 M3219 Hydraulic Boom Pump................................................................................................................. 112
10.4 Curb Nozzle Assembly- OPTIONAL ....................................................................................................... 113
MULTI-AXIS BOOM SECTION
(OPTIONAL)
11-0 ................................................................................................................................................................... 114
11.1 (2 or 3X) Hydraulic Tank - Valve Body Group......................................................................................... 115
11.2 (2 Axis) Boom Assembly ......................................................................................................................... 116
11.3 Hinged Boom Frame Assembly ................................................................................................................ 117
INDEX
Index ................................................................................................................................................................. 119
TABLE OF CONTENTS
Read and understand this entire manual before operating, maintaining or repair-
ing the leaf vacuum.

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SAFETY PRECAUTIONS
Read and understand this entire manual before operating, maintain-
ing or repairing the leaf vacuum.
1.0 GENERAL SAFETY
1.0
GENERAL
SAFETY
Contents
1.0 GENERAL SAFETY
1.1 Safety Symbol Denitions .............................................................................................................. 10
1.2 Do’s and Do Not’s:........................................................................................................................... 11
1.3 Training:........................................................................................................................................... 13
1.4 Safety Decals ................................................................................................................................ 14
1.5 VIN And Serial Number Locations.................................................................................................. 16

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GVM-VAC
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SAFETY PRECAUTIONS
Read and understand this entire manual before operating, maintain-
ing or repairing the leaf vacuum.
DO NOT RIDE, SIT OR STAND ON UNIT
DO NOT MODIFY THE UNIT FOR RIDERS IN ANY
WAY. SERIOUS INJURY OR DEATH MAY OCCUR
If the decal above is missing or damaged call GVM-Vac immediately and we will send you a replacement
free of charge. Never operate a unit with damaged or missing safety decals.
GVM-Vac’s leaf collectors are NEVER to be used to accomodate riders. If your unit has been modi-
ed to accomdate riders, remove these modications immediately as this can result in serious injury
or death.

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SAFETY PRECAUTIONS
SYMBOL MEANING
SAFETY ALERT SYMBOL: Indicates danger, warning or caution. At-
tention is required in order to avoid serious personal injury. May be used in
conjuction with other symbols or pictographs.
Read and understand this entire manual before operating, maintain-
ing or repairing the leaf vacuum.
Disregarding this safety warning WILL result in serious equipment
damage, injury or possible death.
Disregarding this safety warning CAN result in serious equipment
damage, injury or possible death.
Disregarding this safety warning MAY result in minor or moderate
injury or property damage.
1.1 Safety Symbol Denitions
This manual provides the owners/operator with procedures for safe opera-
tion, maintenance and repair of your leaf collector. As with any machine,
there are hazards associated with their operation. For this reason safety is
emphasized throughout this manual. To highlight specic safety information
the following safety denitions are provided to assist the reader.
The purpose of safety symbols are to attract your attention to possible
dangers. The safety symbols, and their explanations, deserve your care-
ful attention and understanding. The safety warnings do not by themselves
eliminate any danger. The instructions or warnings they give are not substi-
tutues for proper accident prevention measures.

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SAFETY PRECAUTIONS
Read and understand this entire manual before operating, maintain-
ing or repairing the leaf vacuum.
1.2 Do’s and Do Not’s:
This section contains some general safety precautions to do and not to do. This
is not an all inclusive list and and it is the responsibilty of the operator to have
proper training and use common sense in work situations.
DO NOT:
1. DO NOT operate, maintain or repair this unit without having fully read and
understood ALL the aspects of this manual.
2. DO NOT ride, sit or stand on unit at anytime.
3. DO NOT modify the leaf vacuum for any reasons to allow for riders.
4. DO NOT operate the unit in a state of disrepair.
5. DO NOT operate the unit with ANY guards or safety devices broken, miss-
ing, or inoperable.
6. DO NOT operate the unit without wearing proper safety equipment.
7. DO NOT operate this unit while under the inuence of any alcohol or medi-
cation.
8. DO NOT operate this unit if you have a record of mental instability or dizzi-
ness which could result in injury to yourself or others.
9. DO NOT operate this unit if you are under 18 years of age.
10.DO NOT operate this unit without fully inspecting the unit for any damage or
leakage.
11. DO NOT operate if the unit has any excessive vibration.
12.DO NOT operate unit with the inspection door limit switch damaged or miss-
ing.
13.DO NOT operate unit unless it is properly connected to a leaf collection box.
14.DO NOT operate unit unless it is properly attached to the tow vehicle.
15.DO NOT tow unit without using all the safety chains.
16.DO NOT tow unit with a damaged tongue.
17.DO NOT ll fuel tank with engine running. Allow engine to cool for 5 minutes
before refueling.
18.DO NOT operate unit if fuel is spilled or with fuel cap off.
19.DO NOT smoke or weld near the unit.
20.DO NOT run engine in an enclosed area.
21.DO NOT place hands or feet near moving or rotating parts.
22.DO NOT operate engine with an accumulation of grass, leaves or other de-
bris on the engine.

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SAFETY PRECAUTIONS
Do Not, continued;
23.DO NOT run engine with air cleaner removed.
24.DO NOT leave leaf machine unattended while in operation.
25.DO NOT park machine on steep grade or slope.
26.DO NOT vacuum a leaf pile without looking for foreign objects such as
metal, glass, plastic or large pieces of wood.
Do’s:
1. DO completely read and understand the owner’s manual before operat-
ing, maintaining or repairing the leaf collector.
2. DO follow engine and PTO manufacturer operating and maintenance
instructions.
3. DO check fuel lines and ttings frequently for cracks or leaks. Replace if
necessary.
4. DO completely inspect the unit before leaving the service garage.
5. DO check the tow tongue each day for cracks.
6. DO inspect and be attentive to what is being vacuumed.
7. DO check the impeller, liners and blower housing for cracks or holes
daily.
8. DO wear proper safety equipment as described in this manual.
9. DO watch for pedestrians, animals and other foreign material when vacu-
uming leaves.
10.DO replace any worn or missing safety stickers immediately.

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SAFETY PRECAUTIONS
Improper use of the GVM-Vac leaf collector CAN result in severe
personal injury or death. All personnel using this leaf vacuum must
be trained and qualied with all the operations, maintenance, repair
and safety procedures dened in this manual.
1.3 Training:
The warnings and procedures regarding safety in this manual are to be
used as a guideline only. It is impossible to cover all the events that
could happen in the vacuuming process. For this reason, it is vital that
the owner accept the responsibility to implement a training program that
will provide every operator or mechanic the basic skills and knowledge to
make good judgement in all situations.
This training program must include the entire scope of hazards, precau-
tions and government regulations encountered in the vacuuming process.
The program should stress the need for regularly scheduled preventive
maintenance and detailed equipment safety checks.
It is strongly recommended that all training programs be documented to
ensure all operators and mechanics receive initial training on not just the
operation but the safety features of the leaf collector.

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SAFETY PRECAUTIONS
Danger--Do Not Open Cover While in Operation
Danger--Do Not Ride, Sit or Stand on Unit
Danger--Head, Eye and Ear Protection Required
Leaf Collector sticker
Do Not Over-Lubricate bearings
Use Diesel Only
Danger--Flammable
Do Not Engage PTO over 1,000 RPM
Danger--Rotating Parts
Danger--Explosion Hazard
Danger--Check Impeller and Liners Daily for Wear
Danger--Inspect Tow Bar for Damage
Warning--Check Lug nuts
GVM-Vac leaf collection systems sticker
Throttle decal
Safety Shut off-Ignition decal
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
ITEM
NO.
PART
NUMBER DESCRIPTION
200182
200179
200181
200109
200055
200177
200059
200183
200178
200189
200180
200104
200120
200112
LH Side
5,6,7
Inside Pedestal
(2 of each)
1,9,6
on outside
of lid
11
1
13
12
1
8
13 13
10
4,3,2
RH Side
Front Rear
14
15
16
1.4 Safety Decals
Decals
shown at end
of section
1.4

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SAFETY PRECAUTIONS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1.4 Safety Decals - Decal Layout for LCT60C/600/650/6000

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SAFETY PRECAUTIONS
Serial Number Tag
1.5 VIN And Serial Number Locations
The serial number tag and Vehicle Identication Number
(VIN) sticker is located in front of the unit to the right of
the the tongue. (See gure 1.5a).
The VIN sticker gives the user critical information regard-
ing the trailer speccations such as Gross Vehicle Weight
Rating (GVWR) which is the maximum allowable total
weight of the fully loaded trailer, including liquids, cargo
and the tongue weight of any towed vehicle, the GAWR
or Gross Axle Weight Rating which is the maximum al-
lowable weight the axles are designed to carry. The tire
ination pressure is also on the sticker.
gure 1.5a
VIN Number Tag
Make sure each operator knows and understands the
load ratings of the towed vehicle and that he/she is
qualied to tow the vehicle.
Serial Number Tag
VIN Number Tag
Tire and Load Information
Thoroughly read and understand the safety and pre-
operating sections of this manual before starting the
engine.

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Read and understand this entire manual before operating, maintain-
ing or repairing the leaf vacuum.
2.0 PRE-OPERATING SECTION
2.0
Pre-Operating
Section
2.0 PRE-OPERATING SECTION
2.0 PRE-OPERATING SECTION
2.1 Instrument and Controls: .......................................................................................................18
2.2 Safe Operations:.....................................................................................................................20
2.3 Preparation For Operation......................................................................................................22
2.4 Pre-Transport Checks.............................................................................................................23
2.5 Personal Protective Equipment and Clothing ........................................................................25
2.6 Work Site Preparation ............................................................................................................26

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Pre-Operating Section
(Typical)
Always make sure the PTO is
disengaged before starting unit.
2.1 Instrument and Controls:
Ignition Switch:
Used to power the accessories and start the unit. Unit will not
start without Murphy switch depressed.
ACCESSORIES - rst position
STARTER ENGAGE - second position (springs return to rst
position)
Murphy Switch:
This switch overrides the low oil pressure and high temperature
cutoff control. This switch must be depressed before the starter
engages. After the engine starts, wait for oil pressure to rise
before releasing the button.
Throttle:
This control provides positive locking and vernier adjustment of
engine.
Combination Tachometer / Hour Meter:
This gauge indicates the engine r.p.m’s. The sender is located
on the tachometer. The hour meter is digital and indicates
the accumulated hours of the engine. This should be used to
schedule maintenance.
Volt Meter:
The gauge shows the status of the engine charging system.
When the charging system is operating properly it should read
approximately 14 volts. If the gauge reads below 13 volts, the
alternator is not charging the battery and the system should be
checked by a qualied technicican.
Oil Pressure Gauge:
Conrms and indicates the presense and pressure of engine
oil. If the gauge reads low, it should be checked by a qualied
technician.
Engine Temperature:
Indicates the engine coolant temperature. If the gauge reads
over 240 degrees the unit should be checked by a qualied
technician.
Hour Meter:
Indicates the accumulated hours of the the engine. This should
be used to schedule maintenance.

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Pre-Operating Section
2.1 Instrument and Controls, cont.:
(Typical)
Always make sure the PTO is
disengaged before starting unit.
SAFETY SWITCH INDICATOR LIGHTS
These lights work with the Murphy (safety) shut off switch. When
the light is on it indicates that the shut off switch has been tripped
and the light indicates which device caused the trip.
Low Oil Pressure Indicator Light:
When lit the engine has reached a low oil pressure reading and
has tripped (thus shut off the engine) the safety shut off (Muprhy)
switch . This light will illuminate when the engine is rst started
until engine oil pressure has been established.
High Water Temperature Indicator Light:
Indicates the engine coolant temperature has reached 225 degrees
and has tripped (thus shut off the engine) the safety shut off (Mu-
prhy) switch.
Inspection Door Indicator Light:
Indicates that the limit switch located on the blower housing in-
spection door has been tripped (thus shut off the engine).
Emergency Stop Switch Indicator Light:
Indicates that the emergency stop switch (on the LCT650 only)
has been depressed, tripping the safety switch and shutting off the
engine.
ROCKER SWITCHES
Strobe Light Switch:
Turns the strobe light on or off
Remote Throttle Switch (optional):
Increases or decreases the engine throttle. Pressing and holding
the top of the switch increases the thottle. The longer the button is
pressed the higher the throttle is advanced. Pressing the bottom of
the switch decreases the throttle in the same manner as increasing
the throttle.
Remote PTO Switch (optional):
Engages or disengages the PTO. Pressing the top of the switch
engages the PTO while pressing the bottom of the switch disen-
gages the PTO.
Engine Heat Switch (Cummins engines only):
Press the top of the switch for 20 – 30 seconds initiates the glow
plug to aid in starting a cold engine.

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Pre-Operating Section
ALL personnel using, maintaining or servicing this unit must be
trained in all safety procedures outlined in this manual. Improper
or careless use of this equipment CAN result in personal injury or
death.
2.2 Safe Operations:
Operations shall be restricted to:
1. Properly trained, qualied and experienced operators and/or qualied and
experienced maintenance and test personnel.
2. Trainees under the direct supervision of qualied and experience
personnel.
3. Qualied and experienced maintenance and service personnel.
Operators who qualify to operate this equipment under the above restric-
tions shall also comply with the following physical requirements:
1. Have good vision and the ability to read and understand this manual as
well as all safety and operational decals on the equipment.
2. Be capable of hearing, with or without a hearing aid, at a level needed to
safely operate this equipment.
3. A record of mental stability with no history of epileptic seizures, dizziness,
or any other disability that may result in injury to himself or others.
If any of these requirements are not satised at any time, the person failing to
meet these requirements MUST NOT OPERATE THIS EQUIPMENT.