Global Manufacturing Viber Mini Backpack Bedienungsanleitung

Global Manufacturing, Inc.®

1102 W. Daisy Gatson Bates

Little Rock, Arkansas 72202

501.374.7416 TEL

800.551.3569 TOLL FREE USA & CANADA

www.globalmanufacturing.com

www.viber-vibrators.com

Viber® Mini Backpack

Operating Instructions

INTERNAL CONCRETE VIBRATOR

PORTABLE GASOLINE POWERED BACKPACK

VMG-1750BP

SAFETY OPERATION INSTRUCTIONS

Your safety and the safety of the people around you are very important. Operating the

Viber® model VMG-1750BP backpack concrete vibrator system in a safe manner is the duty

of every user.

Certain sections of this manual will contain such key words as DANGER, WARNING and

CAUTION. When you see any of these key words in the manual, please read the informa-

tion following the key word very carefully.

DANGER, WARNING: Not obeying the instructions followed by these signal words may

lead to death or injury of the operator or those around him.

CAUTION: Not obeying the instructions following this signal can lead to personal injury

or damage to the equipment.

Before you use the VMG-1750BP please read through the entire set of operating instructions

and the Robin owner’s manual provided with each new unit. Both pieces of literature pro-

vide very important information about safety.

CAUTION

DANGER

WARNING

NOISE / SOUND

Hearing protection must be worn.

TABLE OF CONTENTS

I. INTRODUCTION

The Smart PartsTM System

Safety Precautions

II. ASSEMBLING YOUR INTERNAL CONCRETE VIBRATOR & QUICK DISCONNECT

III. OPERATION

IV. MOTOR MAINTENANCE

V. PARTS LIST

VI. PERFORMANCE SPECIFICATIONS

VII. TROUBLESHOOTING

VIII. Smart PartsTM SYSTEM RECOMMENDATIONS

I. INTRODUCTION

You have purchased a Viber® Gasoline Power Unit, the center of your Smart PartsTM

Internal Concrete Vibrator system. The other system components include a Viber®

vibrator head and a Viber® reversible flexible drive.

POWER UNIT+ FLEXIBLE DRIVE+ HEAD = Smart PartsTM SYSTEM

You build the right Smart PartsTM System for your application by choosing from the

wide range of Viber® components including nine different power options, fourteen

different flexible drives, and twenty different vibrator heads. These components all

use identical fittings so that Viber® components are completely interchangeable.

Any flexible drive can be used with any of the power units and any of the heads.

See Section VIII for recommendations for selecting the best Viber® power unit, head

and flex drive for your application.

When properly used, your Smart PartsTM system will effectively compact concrete

to remove entrapped air, producing high quality concrete that is dense, strong,

durable, and impermeable.

1. Inspect the vibrator system for damage. Never use a damaged vibrator.

2. Have all components of the vibrator system received proper maintenance?

VMG Gasoline Motors: Clean air filter every 25 hours and change engine

oil after every 50 hours of operation. Refer to the Robin Owner’s Manual for a

complete maintenance schedule.

Flexible Shafts: Re-grease core after every 50 hours of use or if core rattles excessively.

Vibrator Head: Monitor bearings. Viber® heads require no lubrication.

3. Are all vibrator system connections tight? Apply Teflon® tape to the casing threads,

before attaching the head, to give a watertight connection.

4. Do you have the proper fuel? Use unleaded gasoline with a pump octane rating of 86

or higher.

5. Check oil level in engine.

II. Assembling Your Internal Concrete Vibrator

& Quick Disconnect

The VMG-1750BP Gasoline Power Unit comes fully assembled except for the throt-

tle control. Mount the throttle control, using the two screws provided, to the holes

located on the lower left side of the frame (when facing the backpack frame from

the rear, engine side). Orient the control so the black knob points outward, FAST is

at the top, and STOP is at the bottom.

All Viber® system components are interchangeable. All flexible drives (cores and

casings) can be used to attach any head to any power unit. For optimum perfor-

mance and wear consult your Smart Parts™ SYSTEM GUIDE or the table in SECTION

VI for the best combination of components.

1. Attach the flexible drive (casing with lubricated core installed) to the power

unit. The VMG-1750BP comes with a quick disconnect for attaching flexible

drives to the power unit. To attach a quick disconnect drive fitting to the flex

drive, first apply a layer of Teflon® tape to the casing threads, add fitting and

turn it clockwise to tighten. Use a small pipe wrench or channel locks to be

sure the connection is tight. (If you do not have an assembled flex drive, the

core must be lubricated before installing it in the casing. Run the core

through a handful of Viber® Core Grease as it is inserted into the core.

Attach the end of the casing, where the core was inserted, to the quick

disconnect drive fitting.)

CAUTION CHECK YOUR EQUIPMENT

WARNING Always be sure the gasoline power unit’s ignition switch is in the “off”

position before assembling or disassembling your system.

WARNING NEVER attempt to change flexible drives while the engine is running

2. Place the flexible drive with installed quick disconnect fitting up to the quick

disconnect on the motor drive. Be sure the core engages in the motor drive.

Turn the large hand nut counter clockwise until tight (hand nut has left

hand threads to insure it will remain tight while operating the system).

3. Before attaching the head, check the length of core

extending from the head end of the flex drive. If this

length is greater than 2-3/4”, twist the core while

pushing it into the casing to make sure it is fully seated

in the motor. If the exposed core is greater than 2-3/4”

when it is fully seated in the motor it may bind and

cause damage to the core, casing, or head. Do not use

the system. Contact your dealer or Global Manufacturing at 1-800-551-3569.

4. To attach the head to the flex drive, be sure the core engages the drive

coupling in the head. First apply two layers of Teflon® tape to the casing

threads then tighten the head in a clockwise direction. Use a crescent wrench

on the machined flats on the head and channel locks or a small pipe wrench

on the casing fitting to make sure the connection is secure.

5. Use only fresh unleaded gasoline with a pump octane rating of 86 or higher.

Do not over fill tank.

III. Operation

Do NOT leave out the Teflon® tape! It is required to provide a watertight

seal between the various components of your vibrator system and pre-

vents the connections from coming loose during operation. If Teflon®

tape or a similar sealant is not used, the components can be damaged by water that pen-

etrates this connection, or the components can come apart and be lost in the concrete.

CAUTION

WARNING Improperly maintaining the engine, or failing to correct a problem before

operation, could cause malfunction in which you could be seriously

injured.

Always perform an inspection and correct any problems found before starting engine.

WARNING Always wear ear & eye protection, gloves and heavy boots when oper-

ating the backpack system

Refer to the Robin Engine owner’s

manual supplied with your

VMG-1750BP for engine

maintenance schedules and

detailed operating instructions.

To start the VMG-1750BP Gasoline Power Unit:

1. Remove any accumulated dirt or debris, especially from around the muffler

and recoil starter.

2. Check that all shields and covers are in place and all nuts, bolts, and screws

are tight.

3. Inspect the throttle, engine kill switch, and swivel joint, where the engine is

attached to the frame, to make sure they are in working order.

4. Check the engine oil level. Add oil if necessary.

5. Check the air filter. A dirty air filter will restrict airflow to the carburetor,

reducing engine performance.

6. Be sure the tank is full with fresh unleaded gasoline with a pump octane

rating of 86 or higher. Do not over fill the tank.

7. Place the VMG-1750BP on an elevated surface high enough to allow the

operator to put on the unit easily after starting.

8. Pump the fuel bulb on the carburetor to ensure fuel is in the float bowl.

9. For a cold engine, move the choke lever to the CLOSED position. To restart

a warm engine, leave the choke lever in the OPEN position.

10. Turn the red engine ignition switch to the ON position.

11. Place the throttle lever in the SLOW position.

12. Hold the VMG-1750BP unit in place with one hand. Pull the starter grip

lightly until you feel resistance, then pull briskly. Return the starter grip

SLOWLY to its initial position.

CAUTION Do NOT start the engine with the throttle lever in the FAST position. This

will engage the vibrator head as soon as the engine starts. Running the

vibrator head in air without regularly submersing it in the concrete will overheat the bearings.

DANGER

WARNING This unit creates carbon monoxide gas when operating. Carbon Monoxide

is a colorless, odorless gas, which can cause injury or death.

Use only outdoors or where fresh air is constantly being introduced into the environment.

13. If the choke lever was moved to the CLOSED position to start the engine,

gradually move it to the OPEN position as the engine warms up.

14. Place the VMG-1750BP unit on your back just as you would a backpack.

Place your arms through the spaces between the straps and the frame. Buckle

the chest strap. Adjust the shoulder and chest strap as needed.

15. You are now ready to vibrate concrete with your VMG-1750BP.

i. Use the black throttle lever on the left side of the frame to regulate the

vibrator speed. Keep in mind, that when consolidating concrete, faster is

not always better. The best performance might be obtained with the

throttle lever in a position below FULL throttle.

ii. The VMG-1750BP is equipped with a centrifugal clutch. By moving the

throttle to the SLOW position, the clutch will disengage allowing the

vibrator head to stop. Do not leave the vibrator head running in air.

RUNNING THE VIBRATOR HEAD IN AIR WITHOUT REGULARLY

SUBMERSING IT IN THE CONCRETE WILL OVERHEAT THE BEARINGS.

If the head is to be held out of the concrete, move the throttle lever to the

SLOW position to prolong bearing life.

iii. To stop the engine at any time, simply move the throttle lever to the SLOW

(fully down) position, and turn off Stop Switch.

Follow the guidelines below when using your Viber® Internal Concrete Vibrator

for consolidating concrete:

1. DO NOT leave the vibrator running in air. Totally submerse the vibrator

head in the concrete. This cools the bearings. Running the vibrator in air

without regularly submersing it in the concrete will overheat the bearings.

2. Avoid making sharp bends in the flexible shaft.

3. Make sure you can see the concrete surface. Use lighting if necessary.

4. Place the concrete in layers no deeper than the length of the vibrator head

plus 4-6”. Layers should not exceed 18-20”, otherwise the weight of the

concrete will prevent the entrapped air from escaping.

5. Keep the vibrator head at least 3-4” from the forms. It can damage them

causing surface defects in the concrete.

6. Do not allow the vibrator head to touch reinforcements, such as rebar.

Vibration can break the bond between the reinforcement and preceding

layers of stiffened concrete.

WARNING The backpack system must be worn on the operators back for it to func-

tion properly. Do not attempt to operate the vibrating head while the

backpack is not being worn.

IMPORTANT To stop the engine at any time, turn engine stop switch to “off”.

WARNING When putting on the backpack, lift the unit by bending your knees. Do

not lift with your back.

7. Let the vibrator head penetrate to the bottom of the layer as quickly as

possible under its own weight.

8. Keep the vibrator head vertical to minimize voids and enhance the release of

entrapped air. For shallow flat slabs, lay the vibrator head horizontally and

drag it through the concrete.

9. Withdraw the vibrator head slowly. Be sure concrete fills in behind leaving

no hole. Do not attempt to “stir” the concrete.

10. Use repeated placements of the vibrator in a systematic pattern to be sure the

entire surface has been vibrated. The area of action can be observed by noting

how far from the vibrator head bubbles appear on the surface. Placements of

the head should insure overlapping of the areas of action.

11. When compacting concrete placed on a previously compacted layer, push the

vibrator 4-6” into the lower layer. Move the vibrator up & down for 5-15

seconds to “knit” the two layers together.

12. Avoid placing the concrete in “heaps”. If it is necessary to flatten a heap,

insert the vibrator head around the perimeter of the heap using as many place-

ments as necessary.

13. Consolidation is complete when no new bubbles come to the top, a glistening

layer of mortar covers the concrete surface, and the “whine” of the motor

indicates that the vibrator speed has leveled off.

14. Clean all vibrator parts immediately following each use.

IV. Motor Maintenance

Routine monthly maintenance is recommended unless the power unit is used for multiple

shifts per day or in harsh environments (heavy dust, snow, sand, etc.). Refer to the Robin

Engine Owner’s Manual provided with your VMG-1750BP for details on performing engine

maintenance.

1. Engine Oil (SAE10W-30, API SJ): Check before each use. Change after the

first 10 hours of use and every 50 hours there after. Change every 25 hours in

high ambient temperatures.

2. Air Filter: Check before each use. Clean every 25 hours or more frequently

if used in dusty areas.

3. Spark Plug: Clean and adjust gap every 25 hours. Replace every two years.

4. Quick Disconnect: Require no lubrication and no routine maintenance. To order

additional quick disconnect drive fittings or for other replacement parts, contact your

dealer or Global Manufacturing at 1-800-551-3569.

DO NOT place anything on top of the motor.

DO NOT stand on the backpack frame or engine.

ALWAYS store the unit with its engine upright and the base on a flat level surface.

Do not store the unit on its side. Oil or gasoline may leak as a result. Leaking oil or gaso-

line is toxic and a fire hazard.

For long-term storage, it is recommended that the gasoline tank be drained and the engine

operated until the remaining fuel is consumed.

CAUTION

V. Parts List

Part # Part Description

VI. Smart PartsTM System Recommendations

To select the proper head and drive length to use with the VMG 1750BP for your

application refer to the table below:

1 2 3

Application Slump Space Limitations Head Diameter

Block Walls & Small Diameter Fills:

Plastic and ﬂowing concrete for very thin

members & walls & conﬁned places.

>3” 2.5” x 2.5” 7/8”

VH-14

Thinnest Prestressed Sections: Plastic

and ﬂowing concrete for very thin members

& walls & conﬁned places.

>3” 3” x 3” 1”

VH-16

Thin Prestressed Sections: Plastic

concrete in thin walls, columns, beams,

precast piles, thin slabs, and along con-

struction joints.

3-5” 3.25” x 3.25” 1-1/4”

VH-20

Thin Wall Sections & General Use:

Plastic concrete in thin walls, columns,

beams, precast piles, thin slabs, and along

construction joints.

3-5” 3.5” x 3.5”

1-1/2”

VH-24

1-3/4”

VH-28-PH

Polly Head

General Use: Plastic & stiff plastic con-

crete in general construction such as walls,

columns, beams, pre-stressed piles, and

heavy slabs.

2-4” 3.75” x 3.75”

1-3/4”

VH-28

2”

VH-32-PH

Polly Head

Shallow Pours: Plastic & stiff plastic con-

crete in slabs and other shallow pours less

than 12” thick.

2-4” 4” x 4”

2-1/8”

VH-34-SP

2-3/8”

VH-38-SP

Polly Head

ICF Applications: Plastic and ﬂowing

concrete for very thin members & walls &

conﬁned places where insulated concrete

forms are used.

> 4” 2.5” x 2.5” 7/8”

VH-14-LF

1 - Find the description in column 1 that matches your application.

2 - Use column 2 to adjust for any size restrictions due to reinforcements, such as rebar,

or other limiting structures.

3 - Column 3 gives the diameter of the vibrator head needed.

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