MULTIQUIP Whiteman Series User manual

The original manual copy is in American English.
OPERATION MANUAL
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
SERIES
WSHE/A SERIES
VIBRATORY TRUSS SCREED
(HONDA GX270UT2QA2 9HP
GX340UT2QAP2 11HP GASOLINE ENGINES)
Revision #0 (05/22/12)
PN: 36870
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PAGE 2 — WSHE/A VIBRATORY TRUSS SCREED • OPERATION MANUAL — REV. #0 (05/22/12)
FUEL AND CHEMICAL EXPOSURE WARNINGS
Gasoline engine exhaust and some of
its constituents, and some dust
created by power sanding, sawing,
grinding, drilling and other
construction activities contain
chemicals know to cause cancer, birth
defects and other reproductive harm.
Some examples of these chemicals are:
Lead from lead-based paints
Crystalline silica from bricks
Cement and other masonry products
Arsenic and chromium from chemically
treated lumber
Your risk from these exposures varies,
depending on how often you do this
type of work. To reduce your exposure
to these chemicals: work in a
well-ventilated area, and work with
approved safety equipment, such as
dust masks that are specially designed
to filter out microscopic particles.




ALWAYS
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WSHE/A VIBRATORY TRUSS SCREED • OPERATION MANUAL — REV. #0 (05/22/12) — PAGE 3
Grinding/cutting/drilling of masonry, concrete, metal and
other materials with silica in their composition may give
off dust or mists containing crystalline silica. Silica is a
basic component of sand, quartz, brick clay, granite and
numerous other minerals and rocks. Repeated and/or
substantial inhalation of airborne crystalline silica can
cause serious or fatal respiratory diseases, including
silicosis. In addition, California and some other
authorities have listed respirable crystalline silica as a
substance known to cause cancer. When cutting such
materials, always follow the respiratory precautions
mentioned above.
WARNING
Grinding/cutting/drilling of masonry, concrete, metal and
other materials can generate dust, mists and fumes
containing chemicals known to cause serious or fatal
injury or illness, such as respiratory disease, cancer,
birth defects or other reproductive harm. If you are
unfamiliar with the risks associated with the particular
process and/or material being cut or the composition of
the tool being used, review the material safety data
sheet and/or consult your employer, the material
manufacturer/supplier, governmental agencies such as
OSHA and NIOSH and other sources on hazardous
materials. California and some other authorities, for
instance, have published lists of substances known to
cause cancer, reproductive toxicity, or other harmful
effects.
Control dust, mist and fumes at the source where
possible. In this regard use good work practices and
follow the recommendations of the manufacturers or
suppliers, OSHA/NIOSH, and occupational and trade
associations. Water should be used for dust
suppression when wet cutting is feasible. When the
hazards from inhalation of dust, mists and fumes cannot
be eliminated, the operator and any bystanders should
always wear a respirator approved by NIOSH/MSHA for
the materials being used.
WARNING
SILICOSIS WARNING RESPIRATORY HAZARDS
SILICOSIS/RESPIRATORY WARNINGS
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PAGE 4 — WSHE/A VIBRATORY TRUSS SCREED • OPERATION MANUAL — REV. #0 (05/22/12)
TABLE OF CONTENTS
WSHE/A Vibratory
Truss Screed
Fuel And Chemical Exposure Warnings .................. 2
Silicosis/Respiratory Warnings ................................ 3
Table Of Contents .................................................... 4
Training Checklist .................................................... 6
Daily Pre-Operation Checklist ................................. 7
Safety Information .............................................. 8-12
Specifications ................................................... 13-15
Lifting Procedure ................................................... 16
Transporting Procedure ......................................... 17
General Information .......................................... 18-20
Components ..................................................... 21-22
Accessories ........................................................... 23
Engine Components .............................................. 24
Inspection ......................................................... 25-26
Assembly .......................................................... 27-33
Operation .......................................................... 34-35
Maintenance ..................................................... 36-40
Troubleshooting ................................................ 41-42
NOTICE
Specifications are subject to change without notice.
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PAGE 6 — WSHE/A VIBRATORY TRUSS SCREED • OPERATION MANUAL — REV. #0 (05/22/12)
TRAINING CHECKLIST
Training Checklist
No, Description OK? Date
1Read operation manual
completely.
2
Machine layout, location of
components, checking of engine
oil levels.
3 Fuel system, refueling procedure.
4Operation of controls (machine
not running).
5 Emergency stop procedures.
6 Startup of machine, engine choke
7 Alignment of blades
8 Concrete fi nishing techniques.
9 Shutdown of machine.
10 Lifting of machine .
11 Assembly of truss sections
12 Winch operation.
13 Cleanup procedures.
16 Machine transport and storage.
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WSHE/A VIBRATORY TRUSS SCREED • OPERATION MANUAL — REV. #0 (05/22/12) — PAGE 7
DAILY PRE-OPERATION CHECKLIST
Daily Pre-Operation Checklist      
1 Engine oil level
2 Bearing lubrication
3 Condition of blades
4 Blade alignment
5 Drive shaft alignment
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PAGE 8 — WSHE/A VIBRATORY TRUSS SCREED • OPERATION MANUAL — REV. #0 (05/22/12)
SAFETY INFORMATION
Do not operate or service the equipment before reading
the entire manual. Safety precautions should be followed
at all times when operating this equipment.
Failure to read and understand the safety
messages and operating instructions could
result in injury to yourself and others.
SAFETY MESSAGES
The four safety messages shown below will inform you
about potential hazards that could injure you or others. The
safety messages specifi cally address the level of exposure
to the operator and are preceded by one of four words:
DANGER, WARNING, CAUTION or NOTICE.
SAFETY SYMBOLS
DANGER
Indicates a hazardous situation which, if not avoided,
WILL result in DEATH or SERIOUS INJURY.
WARNING
Indicates a hazardous situation which, if not avoided,
COULD result in DEATH or SERIOUS INJURY.
CAUTION
Indicates a hazardous situation which, if not avoided,
COULD result in MINOR or MODERATE INJURY.
NOTICE
Addresses practices not related to personal injury.
Potential hazards associated with the operation of this
equipment will be referenced with hazard symbols which
may appear throughout this manual in conjunction with
safety messages.
Lethal exhaust gas hazards
Explosive fuel hazards
Burn hazards
Rotating parts hazards
Symbol Safety Hazard
Pressurized fluid hazards
Hydraulic fluid hazards
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WSHE/A VIBRATORY TRUSS SCREED • OPERATION MANUAL — REV. #0 (05/22/12) — PAGE 9
SAFETY INFORMATION
GENERAL SAFETY
CAUTION
NEVER operate this equipment without proper protective
clothing, shatterproof glasses, respiratory protection,
hearing protection, steel-toed boots and other protective
devices required by the job or city and state regulations.
Avoid wearing jewelry or loose fi tting clothes that may
snag on the controls or moving parts as this can cause
serious injury.
NEVER operate this equipment when not
feeling well due to fatigue, illness or when
under medication.
NEVER operate this equipment under the
infl uence of drugs or alcohol.
ALWAYS clear the work area of any debris, tools, etc.
that would constitute a hazard while the equipment is
in operation.
No one other than the operator is to be in the working
area when the equipment is in operation.
DO NOT use the equipment for any purpose other than
its intended purposes or applications.
NOTICE

This equipment should only be operated by trained and
qualifi ed personnel 18 years of age and older.

Whenever necessary, replace nameplate, operation and
safety decals when they become diffi cult read.
Manufacturer does not assume responsibility for any
accident due to equipment modifi cations. Unauthorized
equipment modifi cation will void all warranties.
NEVER use accessories or attachments that are not
recommended by Multiquip for this equipment. Damage
to the equipment and/or injury to user may result.
ALWAYS know the location of the nearest
fi re extinguisher.
ALWAYS know the location of the nearest
fi rst aid kit.
ALWAYS know the location of the nearest phone or
keep
a phone on the job site.
Also, know the phone numbers
of the nearest ambulance, doctor and
fi re department.
This information will be invaluable in the case of an
emergency.
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PAGE 10 — WSHE/A VIBRATORY TRUSS SCREED • OPERATION MANUAL — REV. #0 (05/22/12)
SAFETY INFORMATION
SCREED SAFETY
DANGER
Engine fuel exhaust gases contain poisonous carbon
monoxide. This gas is colorless and odorless, and can
cause death if inhaled.
The engine of this equipment requires an adequate free
fl ow of cooling air. NEVER operate this equipment in any
enclosed or narrow area
where free fl ow of the air is
restricted. If the air fl ow is
restricted it will cause injury
to people and property and
ser ious damage to the
equipment or engine.
NEVER operate the equipment in an explosive
atmosphere or near combustible materials. An
explosion or fi re could result causing severe
bodily harm or even death.
WARNING
If applicable, NEVER use your hand to fi nd
hydraulic leaks. Use a piece of wood or
cardboard. Hydraulic fl uid injected into the
skin must be treated by a knowledgable
physician immediately or severe injury or
death can occur.
ALWAYS keep clear of rotating or moving
parts while operating the screed.
NEVER disconnect any emergency or safety devices.
These devices are intended for operator safety.
Disconnection of these devices can cause severe injury,
bodily harm or even death. Disconnection of any of these
devices will void all warranties.
CAUTION
NEVER allow passengers or riders on the screed during
operation.
NEVER lubricate components or attempt service on a
running machine.
DANGEROUS
GAS FUMES
NOTICE
ALWAYS
keep the machine in proper running condition.
Fix damage to machine and replace any broken parts
immediately.
ALWAYS
store equipment properly when it is not being
used. Equipment should be stored in a clean, dry location
out of the reach of children and unauthorized personnel.
ENGINE SAFETY
WARNING
DO NOT place hands or fingers inside engine
compartment when engine is running.
NEVER operate the engine with heat shields or
guards removed.
Keep fi ngers, hands hair and clothing away
from all moving parts to prevent injury.
DO NOT remove the engine oil drain plug while the
engine is hot. The possibility of hot oil exists which could
cause severe scalding.
CAUTION
NEVER touch the hot exhaust manifold,
muffl er or cylinder. Allow these parts to cool
before servicing equipment.
NOTICE
NEVER
run engine without an air fi lter or with a dirty air
fi lter. Severe engine damage may occur. Service air fi lter
frequently to prevent engine malfunction.
NEVER tamper with the factory settings
of the engine or engine governor. Damage
to the engine or equipment can result
if operating in speed ranges above the
maximum allowable.
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WSHE/A VIBRATORY TRUSS SCREED • OPERATION MANUAL — REV. #0 (05/22/12) — PAGE 11
SAFETY INFORMATION
FUEL SAFETY
DANGER
DO NOT start the engine near spilled fuel or combustible
fl uids. Fuel is extremely fl ammable and its vapors can
cause an explosion if ignited.
ALWAYS refuel in a well-ventilated area, away from
sparks and open fl ames.
ALWAYS use extreme caution when working with
fl ammable liquids.
DO NOT fi ll the fuel tank while the engine is running
or hot.
DO NOT overfi ll tank, since spilled fuel could ignite if it
comes into contact with hot engine parts or sparks from
the ignition system.
Store fuel in appropriate containers, in well-ventilated
areas and away from sparks and fl ames.
NEVER use fuel as a cleaning agent.
DO NOT smoke around or near the
equipment. Fire or explosion could result
from fuel vapors or if fuel is spilled on a
hot engine.
TRANSPORTING SAFETY
CAUTION
NEVER allow any person or animal to
stand underneath the equipment while
lifting.
NEVER lift or transport screed with
personnel standing on the screed.
Use proper heavy lifting procedures when lifting the
screed.
NOTICE
Machine can be transported on fl atbed truck of proper
weight capacity.
The easiest way to lift the screed is to attach lifting hooks
to the screed frame. Lifting hooks should be placed at
equal distances from each end of the screed.
A strap or chain can be attached to these hooks, allowing
a forklift or crane to lift the screed up onto and off of a slab
of concrete. The strap or chain should have a minimum
of 2,000 pounds (1,000 kg) lifting capacity and the lifting
device must be capable of lifting at least this amount.
Always make sure crane or lifting device has been
properly secured to the lifting hooks on the equipment.
ALWAYS shutdown engine before transporting.
NEVER lift the equipment while the engine is running.
Tighten fuel tank cap securely and close fuel cock to
prevent fuel from spilling.
Use adequate lifting cable (wire or rope) of suffi cient
strength.
DO NOT lift machine to unnecessary heights.
ALWAYS tie down equipment during transport by
securing the equipment with rope.
TOWING SAFETY
CAUTION
Check with your local county or state safety
towing regulations, in addition to meeting
Department of Transportation (DOT)
Safety Towing Regulations, before towing
your screed.
In order to reduce the possibility of an accident while
transporting the screed on public roads, ALWAYS
make
sure the trailer that supports the screed and the towing
vehicle are mechanically sound and in good operating
condition.
ALWAYS shutdown engine before transporting

Make sure the hitch and coupling of the towing vehicle
are rated equal to, or greater than the trailer “gross
vehicle weight rating.”
ALWAYS inspect the hitch and coupling for wear.
NEVER
tow a trailer with defective hitches, couplings, chains, etc.
Check the tire air pressure on both towing vehicle and
trailer.
Trailer tires should be infl ated to 50 psi cold.
Also check the tire tread wear on both vehicles.
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PAGE 12 — WSHE/A VIBRATORY TRUSS SCREED • OPERATION MANUAL — REV. #0 (05/22/12)
ALWAYS make sure the trailer is equipped with a safety
chain.
ALWAYS properly attach trailer’s safety chains to towing
vehicle.
ALWAYS make sure the vehicle and trailer directional,
backup, brake and trailer lights are connected and
working properly.
DOT Requirements include the following:
• Connect and test electric brake operation.
• Secure portable power cables in cable tray with tie
wraps.
The maximum speed for highway towing is 55 MPH unless
posted otherwise. Recommended off-road towing is not to
exceed 15 MPH or less depending on type of terrain.
Avoid sudden stops and starts. This can cause skidding,
or jack-knifi ng. Smooth, gradual starts and stops will
improve towing.
Avoid sharp turns to prevent rolling.
Trailer should be adjusted to a level position at all times
when towing.
Raise and lock trailer wheel stand in up position when
towing.
Place chock blocks underneath wheel to prevent rolling
while parked.
Place support blocks underneath the trailer’s bumper to
prevent tipping while parked.
Use the trailer’s swivel jack to adjust the trailer height to
a level position while parked.
ENVIRONMENTAL SAFETY/DECOMMISSIONING
NOTICE
Decommissioning is a controlled process used to safely
retire a piece of equipment that is no longer serviceable.
If the equipment poses an unacceptable and unrepairable
safety risk due to wear or damage or is no longer cost
effective to maintain (beyond life-cycle reliability) and is to
be decommissioned (demolition and dismantlement),be
sure to follow rules below.
DO NOT pour waste or oil directly onto the ground, down
a drain or into any water source.
Contact your country's Department of
Public Works or recycling agency in your
area and arrange for proper disposal of
any electrical components, waste or oil
associated with this equipment.
When the life cycle of this equipment is over, it is
recommended that the screed frame and all other metal
parts be sent to a recycling center.
Metal recycling involves the collection of metal from
discarded products and its transformation into raw
materials to use in manufacturing a new product.
Recyclers and manufacturers alike promote the process
of recycling metal. Using a metal recycling center
promotes energy cost savings.
NOTICE
The gasoline engine used in this equipment has been
designed to reduce harmful levels of carbon monoxide
(CO), hydrocarbons (HC) and nitrogen oxides (NOx)
contained in diesel exhaust emissions.
This engine has been certifi ed to meet US EPA Evaporative
emissions requirements in the installed confi guration.
Attempting to modify or make adjustments to the engine
emission system by unauthorized personnel without proper
training could damage the equipment or create an unsafe
condition.
Additionally, modifying the fuel system may adversely affect
evaporative emissions, resulting in fi nes or other penalties.
Emission Control Label
The emission control label is an integral part of the emission
system and is strictly controlled by regulations.
The label must remain with the engine for its entire life.
If a replacement emission label is needed, please contact
Discount-equipment.
SAFETY INFORMATION
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WSHE/A VIBRATORY TRUSS SCREED • OPERATION MANUAL — REV. #0 (05/22/12) — PAGE 13
SPECIFICATIONS
Table 1. Engine-Powered Screeds
Recommended Slump 3 in (76 mm)
Max. Concrete Depth 8 in (203 mm)
Max Screed Width 65 ft (19.8 m)
Model Description Weight lb. (kg)
WSHE20 2 foot (.61 m) truss with eccentric shaft vibration 46 (20)
WSHE25 2.5 foot (.76 m) truss with eccentric shaft vibration 50 (23)
WSHE50 5 foot (1.5 m) truss with eccentric shaft vibration 95 (43)
WSHE75 7.5 foot (2.3 m) truss with eccentric shaft vibration 136 (62)
WSHE100 10 foot (3.1 m) truss with eccentric shaft vibration 190 (86)
Accessories
Model Description Weight lb. (kg)
WSHEH End handles (two each) 54 (27)
WSHW Manual Winches, set of two 42 (19)
WSHSPW(L) Self-propelled winch (left side), includes 2.5 foot truss 105 (48)
WSHSPW(R) Self-propelled winch (right side), includes 2.5 foot truss 105 (48)
WSHRBE Reinforcement bracket, engine screed 6 (2.7)
WSKITAEB Adjustable end brackets, set of two, skid type 24 (11)
WSKITAEBR Adjustable end brackets, set of two, roller type 26 (12)
WSHEKITUJ Invert/crown kit, for adjustments up to ¼-inch per foot 22 (10)
WSHEIC Invert/crown kit, for adjustments in excess of ¼-inch per foot 98 (41)
WSHEKIT9H 9 HP Engine Kit 112 (51)
WSHE50KIT9H 9 HP Engine Kit
installed on 5 foot truss section 207 (94)
WSHEKIT11H 11 HP Engine Kit 112 (51)
WSHE50KIT11H 11 HP Engine Kit
installed on 5 foot truss section 207 (94)
36243 Truss screed dolly 50 (23)
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PAGE 14 — WSHE/A VIBRATORY TRUSS SCREED • OPERATION MANUAL — REV. #0 (05/22/12)
Table 2. Air-Powered Screeds
Recommended Slump 2 in + (51 mm +)
Max. Concrete Depth 12 in (305 mm)
Max Screed Width 65 ft (19.8 m)
Model Description Weight lb. (kg)
WSHA20 2 foot (.61 m) truss 45 (20)
WSHA25 2.5 foot (.76 m) truss with 2 air piston vibrators 50 (23)
WSHA50 5 foot (1.5 m) truss with 4 air piston vibrators 95 (43)
WSHA75 7.5 foot (2.3 m) truss with 6 air piston vibrators 136 (62)
WSHA100 10 foot (3.1 m) truss with 8 air piston vibrators 190 (86)
Accessories
Model Description Weight lb. (kg)
WSHAH End handles (two each) and air regulator kit 54 (27)
WSHW Manual Winches, set of two 42 (19)
WSHRBA Reinforcement bracket, air screed 6 (2.7)
WSKITAEB Adjustable end brackets, set of two, skid type 24 (11)
WSKITAEBR Adjustable end brackets, set of two, roller type 26 (12)
WSHAIC Invert/crown kit, for adjustments in excess of ¼-inch per foot 62 (28)
36243 Truss screed dolly 50 (23)
SPECIFICATIONS
NOTES:
1. Sound Pressure and Power Levels are “A” weighted Measures per ISO 226:2003 (ANSI S1.4-1981). They are measured with the operating
condition of the machine which generates the most repeatable but highest values of the sound levels. Under normal circumstances, the sound
level will vary depending on the condition of the material being worked upon.
Table 3. Noise and Vibration Emissions for WSHEKIT9H
Guaranteed ISO 11201:2010 Based
Sound Pressure Level at Operator Station in dB(A) 88
Guaranteed ISO 3744:2010 Based
Sound Power Level in dB(A) 105
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WSHE/A VIBRATORY TRUSS SCREED • OPERATION MANUAL — REV. #0 (05/22/12) — PAGE 15
SPECIFICATIONS
Table 4. Engine Specifications/Dimensions
Model Honda GX270UT2QA2 Engine Honda GX340UT2QAP2 Engine
Type Air-cooled 4 stroke, Single Cylinder, OHV,
Horizontal Shaft Gasoline Engine
Air-cooled 4 stroke, Single Cylinder, OHV,
Horizontal Shaft Gasoline Engine
Bore X Stroke 3.0 in. X 2.3 in. (77 mm x 58 mm) 3.4 in. X 2.5 in. (88 mm x 64 mm)
Displacement 16.4 cu-in. (270 cc) 23.7 cu-in. (389 cc)
Max. Output 9.0 H.P. @ 3600 RPM 11.0 H.P. @ 3600 RPM
Fuel Tank Capacity Approx. 1.95 U.S. Gallons (6.0 Liters) Approx. 1.95 U.S. Gallons (6.0 Liters)
Fuel Unleaded Gasoline Unleaded Gasoline
Lube Oil Capacity 1.06 qt. (1.1 liters) 1.06 qt. (1.1 liters)
Oil Type 4-Stroke API, SF or SG
SAE 10W-30 General Use
4-Stroke API, SF or SG
SAE 10W-30 General Use
Speed Control Method Centrifugal Fly-weight Type Centrifugal Fly-weight Type
Cooling System Forced Air Forced Air
Starting Method Recoil Start Recoil Start
Spark Plug Type BPR6ES NGK BPR6ES NGK
Spark Plug Gap 0.028-0.031 in. (0.70 - 0.80 mm) 0.028-0.031 in. (0.70 - 0.80 mm)
Dimension (L x W x H) 15.0 x 16.8 X 16.6 in. (381 X 428 X 422 mm) 15.9 x 18.1 X 17.6 in. (406 X 460 X 448 mm)
Dry Net Weight 55.1 lbs (25 Kg.) 69.8 lbs (31.7 Kg.)
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PAGE 16 — WSHE/A VIBRATORY TRUSS SCREED • OPERATION MANUAL — REV. #0 (05/22/12)
LIFTING PROCEDURE
LIFTING THE SCREED
The following procedure and Figure 1 describe how to lift
the vibratory screed.
1. Attach the U-shaped hanger and associated hardware
to the top of each truss frame section as shown in
Figure 1. Tighten hanger securely so that it will not slip.
WARNING
NEVER lift the screed to unnecessary heights.
ALWAYS make sure that no one is standing underneath
the screed while it is being lifted.
2. Utilize a spreader bar of proper length and lifting
capacity. Secure lifting straps from both ends of the
spreader bar to the attached lifting hangers.
3. Connect lifting cables from the spreader bar to the
lifting hook of a crane or forklift. Ensure that the lifting
hook and chain are of appropriate lifting capacity.
4. Use crane or forklift to hoist screed onto a flatbed truck
for transporting or onto the form for screeding.
Figure 1. Lifting the Screed
FRONT
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WSHE/A VIBRATORY TRUSS SCREED • OPERATION MANUAL — REV. #0 (05/22/12) — PAGE 17
TRANSPORTING PROCEDURE
TRANSPORTING THE SCREED
Place the screed on a flatbed truck during transportation as shown in Figure 2. Attach suitable tie-down straps to the screed
to secure it to the truck. Route tie-down straps over truss frame sections as required.
\
Figure 2. Screed Tie-Down Points
TIE-DOWN
STRAPS
TYPICAL TIE-DOWN APPLICATION
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PAGE 18 — WSHE/A VIBRATORY TRUSS SCREED • OPERATION MANUAL — REV. #0 (05/22/12)
GENERAL INFORMATION
BULL FLOAT
BLADE
2x4 FORMS
CONCRETE
2 BLADES
WINCH
TRAVEL DIRECTION
FORM STAKES
WINCH CABLE
Figure 3. Vibratory Screed Application
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WSHE/A VIBRATORY TRUSS SCREED • OPERATION MANUAL — REV. #0 (05/22/12) — PAGE 19
GENERAL INFORMATION
Multiquip vibratory truss screeds are used for leveling
pavement and industrial floors. They are available in air-
powered and engine-driven configurations. The vibratory
truss screeds provide dependable performance on job
after job. Its modular design allows the ability to configure
the screed by adding or removing sections as needed.
Figure 3 represents a typical vibratory screed application.
HEAVY-DUTY STEEL CONSTRUCTION
The Multiquip vibratory truss screed uses a triangular frame
design (Figure 4), built to take the abuse of rough handling
on a jobsite. Unlike the lightweight aluminum screed, the
steel screed will hold its precise shape better on long pours
and over a longer period of time. Additionally, the heavier
steel screed will stay down on the forms and will not ride up
during a pour. This vibratory screed weighs approximately
14 pounds per foot.
STEEL TRUSS DESIGN
The steel construction keeps the screed from riding up on
stiff concrete mix designs.
The vibratory truss screed features top pipe manufactured
from schedule 80 steel and features 16 TPI thread to
provide fine grade control should crowns or inverts be
required.
Figure 4. Screed Cross Section
SCHEDULE 80
TOP PIPE
3/8" TRUSS ROD
VIBRATION
DAMPENING 1/2" DIA.
TRUSS RODS
3/8" X 1-1/2"
BOTTOM TRUSS
SUPPORT
BULL FLOAT
BLADES
STRIKE-OFF
BLADES
2"
(51 MM)
16"
(406 MM)
3"
(76 MM)
12-3/8"
(314 MM)
DIRECTION
OF TRAVEL
ENGINE SIDE
OF SCREED
FOUR DIFFERENT LENGTHS
Multiquip Vibratory Screeds come in four lengths: 2-1/2 ft.,
5 ft., 7-1/2 ft. and 10 ft. sections.
STANDARDIZATION (AIR AND ENGINE DRIVEN)
Multiquip uses the same frame for both the air and engine
driven screeds. The top pipe is drilled and tapped to allow
air connections for the air vibrators.
SCREED BLADES
The screed blades are constructed of 10-gauge galvanized
steel for rust resistance and maximum durability. The front
blades consist of two 1-1/2" high x 2" wide angles. This
gives the screed blades 2-1/2 inches of concrete surcharge
and 4 inches of screed surface. The rear (bull float) blade is
a single blade 2-1/2" wide. A total of 7 inches of concrete
surface contact is provided by the screed.
BOLT-ON BLADE DESIGN
The WSHE/A vibratory truss screeds features a bolt-
on blade design to allow easy replacement of worn or
damaged blades.
AIR-POWERED SCREED
Air vibrators offer high frequency (up to 9500 vibrations per
minute at 60 PSI) for excellent consolidation of low slump
mixes. The screed is capable of striking off slabs up to 11
inches thick (performance may vary according to mix design
and job requirements).
The vibrators are placed on 30-inch centers and located
at both front and rear blades for uniform vibration. Air
consumption is approximately 4CFM for each vibrator at
60 PSI. Crowns/Inverts up to 1/4" per foot are attainable
without an optional kit.
ENGINE DRIVEN SCREED
The engine-driven screed has an eccentric shaft design
that produces 8,000 vibration cycle nodes per minute. It
is ideal for slab, bridge, and highway applications. The
engine-driven screed is powered by either a 9 HP or 11 HP
Honda engine. Engine kits are available factory installed on
5-foot truss sections for reduced setup time at the job site.
Winch options include manual or self-propelled models.
NOTICE
It is best to allow a minimum overhang past the forms
(6" to 12" is ideal).
To order go to Discount-Equipment.com

PAGE 20 — WSHE/A VIBRATORY TRUSS SCREED • OPERATION MANUAL — REV. #0 (05/22/12)
GENERAL INFORMATION
Self-propelled models are each mounted on a 2.5-foot
section of the screed. Crowns/Inverts may be obtained
with optional kits.
ROTATING ECCENTRIC SHAFT (RES)
VIBRATORY SCREED
The rotating eccentric shaft produces over 8000 VPM. The
shaft is built of 3/4" diameter, high strength steel with 1-3/8"
diameter dual eccentrics bolted on 30" centers. The shaft
is supported by heavy-duty, solid-mounted pillow block
bearings (the bearings are greaseable and provide long
life and solid transmission of vibration through the lower
frame and blades into the concrete).
PROPELLING THE SCREED
Several options are available for moving the screed during
a pour.
1. Manual Winches — Heavy Duty 2500 lb., 2 speed
winches with 100 feet of 1/8" aircraft cable can be
located on either end of the screed or with the addition
of a pulley kit, both sides of the screed can be winched
from on side.
2. Hydraulic Winches — By adding a pulley to the
rotating eccentric shaft, power can be harnessed
to drive a small Parker hydraulic pump. This pump
provides power to an Eaton drive motor driving the
winches located on either side of the screed. The speed
of the winch is variable from 0 to 12 feet per minute.
INVERTS AND CROWNS
Multiquip Vibratory Screeds can be aligned to form inverts
or crowns with the use of special Invert/Crown Brackets,
Flex-Joint or U-Joint kits. Crowns of up to 1/4-inch per foot
are considered normal. Most highway specifications call for
1/4-inch per foot or 2% crowns. (.25 inches per 12 inches)
SCREED WIDTH
The recommended maximum length is 65 feet for both
air and engine driven screeds. With lengths over 35 feet,
the engine should be mounted on a center section of the
screed. This increases efficiency and equalizes the load
on the driveshaft.
SLAB THICKNESS
Like soil compaction, slab thickness is variable. Maximum
slab thickness depends on the concrete mix, type of forms
used, travel speed and other variables. The Rule of Thumb
is: 8 to 9 inches for the RES type and up to 12 inches for
the air screed.
RATE OF TRAVEL
The rate of travel for the screed varies. The men working
the concrete should maintain a slight discharge of concrete
in front of the screed. (DO NOT allow concrete to flow over
the screed blades by more than 2-1/2".) As you move the
screed forward, you should be getting a nice, creamy
surface behind the bull float blade. Increase the travel speed
until the surface deteriorates and then slow down slightly
to achieve maximum travel speed.
COMMONLY ASKED QUESTIONS:
1. “How wide can I go with the vibratory screed?”
Recommended maximum length is 65 feet for both air
and engine driven screeds. With lengths over 20 feet,
the engine should be mounted on a center section of
the screed. This increases efficiency and equalizes the
load on the driveshaft.
2. “What is the maximum slab thickness I can expect to
effectively consolidate?”
Like soil compaction, this is variable. It depends on
the concrete mix, type of forms used, travel speed and
other variables. The rule of thumb is: 8 to 9 inches for
the RES type and up to 12 inches for the air screed.
3. “At what rate of travel should I work the screed?”
It varies. The men working the concrete should maintain
a slight discharge of concrete in front of the screed.
(Do not allow concrete to flow over the screed blades
by more than 2-1/2".) As you move the screed forward,
you should be getting a nice, creamy surface behind
the bull float blade. Increase the travel speed until the
surface deteriorates and then slow down slightly to
achieve maximum travel speed.
To order go to Discount-Equipment.com