MBW ScreeDemon User manual

OPERATOR’S SAFETY
AND SERVICE MANUAL
MBW, Inc.
250 Hartford Rd • PO Box 440
Slinger, WI 53086-0440
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.mbw.com
MBW (UK) Ltd.
Units 2 & 3 Cochrane Street
Bolton BL3 6BN, England
Phone: [phone]
Fax: [phone]
MBW France S.A.R.L
Phone: [phone]
Fax: [phone]
SCREEDEMON
This manual covers the following serial numbers
and higher for each model listed:
WS500 . . . . . . . . . . . . . . . . . . . 1415760
L17763 / 09.17.S
©MBW, Inc. 2017
Printed in the USA
WET SCREED

TABLE OF CONTENTS
SAFETY INFORMATION . . . . . . . . . . . . . . . . . 1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . 3
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Before Starting & Operating . . . . . . . . . . . . . . . . . . . . 4
Attaching Blade. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Starting Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Stopping Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Handle Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Kickstand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Transporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . 7
Maintenance Schedule. . . . . . . . . . . . . . . . . . . . . . . . 7
Engine Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . 7
Engine Speed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Torque Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Engine Mounting Flange Removal . . . . . . . . . . . . . . . 8
Handle Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Exciter Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Exciter Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Engine Mounting Flange & Engine Assembly . . . . . . 9
Parts Replacement Cycles and Tolerances . . . . . . . 10
REPLACEMENT PARTS. . . . . . . . . . . . . . . . . 11
Main Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Exciter Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Engine and Engine Mount . . . . . . . . . . . . . . . . . . . . 16
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . 18

CALIFORNIA PROPOSITION 65 WARNING
Engine exhaust and some of its constituents are
known in the state of California to cause cancer, birth
defects, and other reproductive harm.
WARNING

- 1 -
SAFETY INFORMATION
Introduction
This Safety Alert Symbol is used to call attention
to items or operations which may be dangerous
to those operating or working with this equipment.
The symbol can be found throughout this manual
and on the unit. Please read these warnings and cautions,
along with all decals, carefully before attempting to operate
the unit. Make sure every individual who operates or works
with this equipment is familiar with all safety precautions.
WARNING
GENERAL WARNING. Indicates information
important to the proper operation of the equipment.
Failure to observe may result in damage to the
equipment and/or severe bodily injury or death.
CAUTION
GENERAL CAUTION. Indicates information
important to the proper operation of the equipment.
Failure to observe may result in damage to the
equipment.
Safety Precautions
LETHAL EXHAUST GAS: An internal
combustion engine discharges carbon
monoxide, a poisonous, odorless, invisible
gas. Death or serious illness may result if
inhaled. Operate only in a properly ventilated
area. NEVER OPERATE IN A CONFINED
AREA!
DANGEROUS FUELS: Use extreme caution
when storing, handling and using fuels, as
they are highly volatile and explosive in vapor
state. Do not add fuel while engine is running.
Stop and cool the engine before adding fuel.
DO NOT SMOKE!
SAFETY GUARDS: It is the owner's
responsibility to ensure that all guards and
shields are in place and in working order.
IGNITION SYSTEMS: Breakerless, magneto,
and battery ignition systems can cause severe
electrical shocks. Avoid contacting these units
or their wiring.
SAFE DRESS: Do not wear loose clothing,
rings, wristwatches, etc. near machinery.
NOISE PROTECTION: Wear OSHA specified
hearing protection devices.
EYE PROTECTION: Wear OSHA specified
eye shields, safety glasses, and sweat bands.
FOOT PROTECTION: Wear OSHA specified
steel-tipped safety shoes.
HEAD PROTECTION: Wear OSHA specified
safety helmets.
OPERATOR: Keep children and bystanders
off and away from the equipment.
DUST PROTECTION:Machining, crushing or
handling of stone, concrete, masonry, metal
and other materials may generate dust, mist
and fumes containing chemicals such as
silica, known to cause serious or fatal injury or illness, such
as respiratory disease, silicosis, cancer, birth defects, or
other reproductive harm.
• Control dust, mist and fumes at the source where possible.
Water should be used to control dust whenever feasible.
• Use good work practices and follow the recommendations
of the manufacture, OSHA/NIOSH and other occupational
trade associations.
• When hazards cannot be eliminated the operator and any
bystanders should always wear a OSHA specified respirator
for materials being handled.
REFERENCES: For details on safety rules and regulations
in the United States, contact your local Occupational Safety
and Health Administration (OSHA) office. Equipment
operated in other countries must be operated and serviced
in accordance and compliance with any and all safety
requirements of that country. The publication of these safety
precautions is done for your information. MBW does not by
the publication of these precautions, imply or in any way
represent that these are the sum of all dangers present near
MBW equipment. If you are operating MBW equipment, it is
your responsibility to insure that such operation is in full
accordance with all applicable safety requirements and
codes. All requirements of the United States Federal
Occupational Safety and Health Administration Act must be
met when operated in areas that are under the jurisdiction
of that United States Department.
Safety Decals
Carefully read and follow all safety decals. Keep them in
good condition. If decals become damaged, replace as
required. If repainting the unit, replace all decals. Decals are
available from authorized MBW distributors. Order the decal
set listed on the following page(s).

- 2 -
EXCITER
LOCATION
U.S. PATENT 7,201,537
6,988,851 ; 7,204,659
19379
Safety Decals (Decal Set #17782)
EXCITER
LOCATION
17769
17768
17768

- 3 -
SPECIFICATIONS
Blade Specifications
Specifications subject to change without notice
500H
Operating Weight 29 lbs (13.2 kg)
Engine Make Honda
Engine Model GX35NTT3
Displacement (2.13 in3) 35 cm3
Spark Plug NGK CMR5H
Electrode Gap 0.024 -0.028in (0.6-0.7mm)
Engine Oil Type SAE 10W30
Engine Oil Capacity 3.4 oz (0.1L)
Fuel Type Regular Unleaded
Fuel Tank Capacity 0.17 gal (0.64 L)
Part # Width Weight
17804 4 ft (1.21 m) 8.1 lb (3.7 kg)
17806 6 ft (1.83 m) 12.1 lb (5.5 kg)
17808 8 ft (2.44 m) 16.1 lb (7.3 kg)
17810 10 ft (3.05 m) 20.1 lb (9.1 kg)
17812 12 ft (3.66 m) 24.0 lb (10.9 kg)
17814 14 ft (4.27 m) 28.0 lb (12.7 kg)
17816 16 ft (4.88 m) 32.0 lb (14.5 kg)
17818 18 ft (5.49 m) 36.0 lb (16.3 kg)
17820 20 ft (6.10 m) 40.0 lb (18.1 kg)
17824 24 ft (7.32 m) 47.9 lb (21.7 kg)
500H

- 4 -
OPERATION
Introduction
MBW equipment is intended for use in very severe
applications. They are powered by four cycle engines and
are available in different sizes and a selection of engines.
This parts manual contains only standard parts. Variations
of these parts as well as other special parts are not included.
Contact your local MBW distributor for assistance in
identifying parts not included in this manual.
Before Starting & Operating
• REMEMBER! It is the owner’s responsibility to
communicate information on the safe use and proper
operation of this unit to the operators.
• Review ALL of the Safety Precautions listed on page 1 of
this manual.
• Familiarize yourself with the operation of the machine
and confirm that all controls function properly.
• Know how to STOP the machine in case of an
emergency.
• Make sure hands, feet, and clothing are at a safe
distance from any moving parts.
• OIL LEVEL - Check the oil level in the engine. For more
information see “Lubrication” under the respective
engine’s “Owners Manual” or the Maintenance section of
this manual.
• AIR CLEANER - Check to ensure element is in good
condition and properly installed.
• FUEL SUPPLY - The engines on MBW equipment
require an automotive grade of clean, fresh, unleaded
gasoline.
• FUEL FILTER - If clogged or damaged, replace.
Attaching Blade
Refer to Figure 1.
1. Loosen the bolts that secure the clamps to the exciter
assembly.
2. Lay the float blade on the floor with the decals facing
upward.
3. Center the exciter between the “Exciter Location”
decals on the float blade.
4. Tilt the exciter forward and hook the small leg of the
clamping plates under the front lip of the float blade.
5. Set the exciter onto the blade so the rear part of the
exciter casting lines up with the rear cavity of the float
blade.
6. Tighten the clamping plate bolts.
Starting Engine
1. Turn engine switch to “ON”.
2. Press the primer bulb repeatedly until fuel can be
seen in the clear plastic return tube.
3. Choke engine if necessary (you may not need to
choke a warm engine).
4. Pull starter rope repeatedly until engine starts.
5. If choke was moved to the closed position to start,
gradually move it to the open position as the engine
warms up.
6. Allow engine to warm up for one or two minutes.
Stopping Engine
1. Move throttle to idle position.
2. Let engine idle for one or two minutes.
3. Turn switch on engine to “STOP” position.
4. Turn off fuel valve.
WARNING
Always stop the engine before:
Adding fuel.
Leaving the equipment unattended for any
amount of time.
Before making any repairs or adjustments to the
machine.
Float Blade
Exciter
Clamping
Plate
Bolt
Figure 1.

- 5 -
Operation
Before placing the ScreeDemon in concrete make sure the
clamps securing the exciter to the float blade are tight.
CAUTION
Keep the blade clamps tight at all times. Operat-
ing the ScreeDemon with the clamps loose will
damage the float blade.
CAUTION
Never run the ScreeDemon above idle when the
float blade is not in contact with concrete. This
can damage the float blade.
The ScreeDemon can be used with or without forms. The
following describes the use of the ScreeDemon without
forms.
1. Use a hand float to make a 12-18” diameter wet pad
(A) at the desired grade in the four corners of the area
you wish to screed. The outer extents of the wet pads
should not exceed the length of the float blade being
used.
NOTE: Use a laser receiver, transit level, or grade
stakes to help establish the correct grade.
2. Run the ScreeDemon between the wet pads to create
two parallel strips (B) that define the grade for the
remainder of the wet screeding. These strips should
be 12-18” wide.
3. Place one end of the float blade on each of the
parallel strips (B) and screed the concrete (C) in
between the strips. Be sure the float blade follows
the contour of the parallel strips.
Blade Length
12-18"
AA
AA
Step 1.
B
B
Step 2.
B
B
C
Step 3.

- 6 -
Handle Adjustment
The operator can adjust the handle on the
ScreeDemon to a comfortable position.
Refer to Figure 2.
1. Loosen the handle by turning the handle
adjustment knob counter-clockwise.
2. Move the handle to the desired position.
3. Tighten the handle adjustment knob.
Kickstand
The kickstand will support the ScreeDemon in an
upright position when not in use.
Transporting
It is recommended to transport the ScreeDemon with the
float bar removed. The float bar is more likely to be
damaged if attached to the main unit during transport.
The handle can be collapsed for easier transport. See
Figure 3.
Figure 2.
Kickstand
Handle
Adjustment
Knob
Figure 3.

- 7 -
MAINTENANCE
WARNING
Always exercise the stopping procedure before
servicing or lubricating the unit.
After servicing the unit, replace and fasten all
guards, shields, and covers to their original
positions before resuming operation.
CAUTION
Always verify fluid levels and check for leaks after
changing fluids.
Do not drain oil onto ground, into open streams,
or down sewage drains.
Maintenance Schedule
1. Check all hardware after the first 5 hours of use, then follow the maintenance schedule.
Engine Maintenance
Refer to the engine owner’s manual for maintenance
intervals and procedures.
Engine Speed
The idle speed of the engine should not exceed the
following:
Honda - 3500 rpm
If the idle speed is greater the clutch may not disengage.
Check engine owner’s manual for procedure on setting idle
speed.
Cleaning
Clean any concrete from the ScreeDemon immediately
after each use. DO NOT allow concrete to harden on
the screed.
1. Use a hose to remove any excess concrete.
2. Remove any buildup with hard plastic bristle brush.
NOTE: DO NOT use a wire brush, hammer, or pressure
washer to remove concrete from the main unit or
float blade.
3. Remove the blade.
4. Start engine and run the exciter for about 10 seconds.
5. Shut down the engine.
SYSTEM MAINTENANCE EACH USE EVERY 20
HOURS
EVERY 100
HOURS YEARLY
Engine Refer to engine operator/owner manual X
Hardware Check and tighten as needed1XX
Shockmounts Check for cracks or tears XX

- 8 -
SERVICE
Assembly and disassembly should be performed by a
service technician who has been factory trained on MBW
equipment. The unit should be clean and free of debris.
Cleaning unit before disassembly is recommended.
• Prior to assembly, wash all parts in a suitable cleaner or
solvent.
• Check moving parts for wear and failure. Refer to the
Replacement section in this manual for tolerance and
replacement cycles.
• All shafts and housings should be oiled prior to pressing
bearings. Also, ensure that the bearings are pressed
square and are seated properly.
• All bearings should be replaced when rebuilding any
exciter or gearbox.
• All gaskets and seals should be replaced after any
disassembly.
Torque Chart
Engine Mounting Flange Removal
Refer to Engine and Engine Mount, page 16.
1. Disconnect the throttle cable (#18, page 12) from the
engine (#8).
2. Loosen the 6mm socket head cap screw (#2) located
at the base of the engine.
3. Pull the engine off the engine mounting flange (#4).
NOTE: Silicon is used to seal the connection between
the engine and the engine mounting flange.
Rotating the engine will help break this seal.
4. Remove the three hex head cap screws and sealing
washers (#20 & #5, page 12) from the engine
mounting flange.
5. Remove the plug (#1) from the engine mounting
flange.
6. Use an 1/8” allen wrench to loosen the pipe plug
(#12, page 14) inside the exciter housing (#4, page
14) directly below the hole.
7. Stick a rod or screwdriver straight down through both
holes.
8. Rotate the spline shaft (#6) until the exciter hits the
rod and the spline shaft can no longer turn.
9. Use a pliers to grab the spline shaft below the spline.
Rotate the shaft counter-clockwise to remove the
engine mounting flange.
Handle Removal
Refer to Main Assembly, page 12.
1. Disconnect the throttle cable (#18) from the engine.
2. Remove the hex head cap screw (#26) and
lockwasher (#27) securing the rear shockmount (#2)
to the exciter (#15).
3. Remove the two hex head cap screws (#26) and
lockwashers (#27) located at the base of the handle
mount (#9).
4. Remove the handle mount from the exciter.
Exciter Disassembly
Refer to Exciter Assembly, page 14.
The engine mounting flange must be removed before
disassembling the exciter. See Engine Mounting
Flange Removal, page 8.
1. Unthread the three shockmounts (#7) from the exciter
housing (#4). Unthread the shockmount from the
exciter shaft (#6).
SIZE GRADE 2 GRADE 5 GRADE 8
1/4-20 49 in•lbs 76 in•lbs 9 ft•lbs
1/4-28 56 in•lbs 87 in•lbs 10 ft•lbs
5/16-18 8 ft•lbs 13 ft•lbs 18 ft•lbs
5/16-24 9 ft•lbs 14 ft•lbs 20 ft•lbs
3/8-16 15 ft•lbs 23 ft•lbs 33 ft•lbs
3/8-24 17 ft•lbs 26 ft•lbs 37 ft•lbs
7/16-14 24 ft•lbs 37 ft•lbs 52 ft•lbs
7/16-20 27 ft•lbs 41 ft•lbs 58 ft•lbs
1/2-13 37 ft•lbs 57 ft•lbs 80 ft•lbs
1/2-20 41 ft•lbs 64 ft•lbs 90 ft•lbs
9/16-12 53 ft•lbs 82 ft•lbs 115 ft•lbs
5/8-11 73 ft•lbs 112 ft•lbs 159 ft•lbs
M 6 3 ft•lbs 4 ft•lbs 7 ft•lbs
M 8 6 ft•lbs 10 ft•lbs 18 ft•lbs
M 10 10 ft•lbs 20 ft•lbs 30 ft•lbs
CONVERSIONS
in•lbs x 0.083 = ft•lbs
ft•lbs x 12 = in•lbs
ft•lbs x 0.1383 = kg•m
ft•lbs x 1.3558 = N•m

- 9 -
2. Loosen the three socket head cap screws (#13)
securing the exciter cover (#8) to the exciter housing.
Back the socket head cap screws out about 1/4”.
3. Gently tap on the socket head cap screws with a
rubber mallet to push the exciter cover out of the
exciter housing.
4. Remove the socket head cap screws and the fiber
washers (#11) after the exciter cover is free from the
exciter housing.
5. Remove the bearings (#5) from the exciter housing,
exciter cover, and exciter shaft.
6. Remove the socket head cap screw (#13) securing
the exciter weight (#3) to the exciter shaft (#6).
Exciter Assembly
Refer to Exciter Assembly, page 14.
1. Press a bearing (#5) into the exciter housing (#4) and
exciter cover (#8).
2. Slide the exciter weight (#3) onto the exciter shaft
(#6).
3. Apply a medium strength threadlocker to the socket
head cap screw (#13) and use it to secure the exciter
weight into the exciter shaft.
4. Turn the exciter housing up-side-down and place the
the threaded end of the exciter shaft/weight
assembly into the bearing in the housing.
5. Apply a light coat of grease to the top step of the
exciter cover (#8). Place a new o-ring (#1) onto the
greased step.
6. Apply medium strength thread locker to the threaded
holes in the cover.
7. Line up the mounting holes between the exciter
housing and exciter cover and assemble the exciter
cover to the exciter housing. Take care not to cut the
o-ring. Secure the cover with three socket head cap
screws and fiber washers (#11).
8. Thread the four shockmounts (#7) into the exciter
housing and exciter shaft.
9. Apply medium strength thread locker to the socket
head set screw (#12) and thread it into the exciter
housing.
Engine Mounting Flange & Engine Assembly
Refer to Engine and Engine Mount, page 16
1. Inspect the rubber seal (#9). Remove if there are any
tears or if it is worn. If the rubber seal is in good
condition, skip to step #5.
2. Clean the surfaces of the engine mounting flange
(#4) where the rubber seal was glued.
3. Apply a small bead of Loctite 426 adhesive (MBW
#17885) to the lip on the engine mounting flange.
See Figure 4.
4. Place a new rubber seal onto the engine mounting
flange and hold it in place for 10 seconds to allow the
adhesive to set up.
5. Position the engine mounting flange (#4) so the plug
hole lines up with the socket head set screw (#12,
page 14) on the exciter.
NOTE: Do not use any sealant or adhesive between the
bottom of the rubber seal and the top of the exciter.
6. Set the engine mounting flange in place while turning
the spline shaft (#6) clockwise to thread the shaft into
the center shockmount (#7, page 14) on top of the
exciter housing (#4, page 14). This only needs to be
hand tight.
7. Secure the engine mounting flange with three sealing
washers (#5, page 12) and three hex head cap
screws (#20, page 12).
8. Replace the plug (#1).
9. Place a small bead of 100% silicon sealant around
the engine mounting flange about 1/2” from the top.
Also fill the slot on the engine housing with silicone.
10. Orient the engine (#8) so the fuel tank faces away
from the operating position and slide the engine over
the engine mounting flange.
NOTE: Make sure the engine slides all the way down to
the step on the engine mounting flange. The
engine may have to be lifted and rotated to engage
the splines.
11. Tighten the socket head cap screw (#2) at the base
of the engine.)
12. Reattach the throttle cable (#18, page 12 to the
engine.
APPLY
ADHESIVE
HERE
Figure 4.

- 10 -
Parts Replacement Cycles and Tolerances
Bearings Replace anytime a bearing is rough, binding, discolored or removed from housing or
shaft.
Engine Components Refer to your engine manufacturer’s Owner’s Manual.
Hardware Replace any worn or damaged hardware as needed. Replacement hardware should
be grade 5 and zinc plated unless otherwise specified.
Safety Decals Replace if they become damaged or illegible.
Seals, O-rings, & Gaskets Replace if a leak is detected and at every overhaul or teardown.

- 11 -
MBW, Inc.
250 Hartford Rd • PO Box 440
Slinger, WI 53086-0440
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.mbw.com
MBW (UK) Ltd.
Units 2 & 3 Cochrane Street
Bolton BL3 6BN, England
Phone: [phone]
Fax: [phone]
Contact Information
MBW France S.A.R.L
Phone: [phone]
Fax: [phone]
REPLACEMENT PARTS
The warranty is stated in this book on page 19. Failure to
return the Warranty Registration Card renders the warranty
null and void.
MBW has established a network of reputable distributors/
dealers with trained mechanics and full facilities for
maintenance and rebuilding, and to carry an adequate parts
stock in all areas of the country. Their sales engineers are
available for professional consultation. If you cannot locate
an MBW distributor in your area, contact MBW or one of our
Sales Branches listed below.
When ordering replacement parts, be sure to have the
following information available:
• Model and Serial Number of machine when ordering
MBW parts
• Model and Serial Number of engine when ordering
engine parts
• Part Number, Description, and Quantity
• Company Name, Address, Zip Code, and Purchase
Order Number
• Preferred method of shipping
REMEMBER - You own the best! If repairs are needed,
use only MBW parts purchased from authorized
MBW distributors.
The unit’s serial number can be found in the following
locations:
• The model/serial number decal is located on the handle
support on the underside of the handle clamp.
• The serial number is stamped on the handle support
below the serial number decal.
• The serial number is also stamped on the underside of
the exciter housing between the exciter and the
shockmount bolt.
Write Model Number here
Write Serial Number here
DECAL
STAMP
STAMP

- 12 -
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













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
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Main Assembly

- 13 -
DD
ITEM PART NO. DESCRIPTION QTY
1. 18472 GRIP, HANDLE 2
2. 17170 SHOCKMOUNT, 2” OD X 1-3/4” LONG 1
3. 17245 DOWEL PIN, 1/4” X 1.75” 1
4. 17263 LEVER, THROTTLE 1
5. 17639 WASHER, SEALING 3
6. 20887 KNOB, CLAMPING W/ STEEL STUD 1
17647 KNOB, CLAMPING SERIAL NO. 1415759 & LOWER 1
7. 17649 CLAMP 1
8. 17651 STUD, 1/2-13 X 1-1/2” LONG 1
9. 17727 MOUNT, HANDLE(INCLUDES ITEMS 3, 7, & 8) 1
10. 17656 HANDLE, LIFTING 1
11. 17660 STAND 1
12. 17661 WASHER, NYLON 2
13. 17662 CAP 2
14. 17719 HANDLE 1
15. 17726 EXCITER ASSEMBLY 1
16. 17804 4’ FLOAT 1
17806 6’ FLOAT 1
17808 8’ FLOAT 1
17810 10’ FLOAT 1
17812 12’ FLOAT 1
17814 14’ FLOAT 1
17816 16’ FLOAT 1
17818* 18’ FLOAT
17820* 20’ FLOAT
17824* 24’ FLOAT
17. 17831 END CAPS, FLOAT (CONTAINS ALL 4 CAPS NEEDED FOR FLOAT) 1
18. 17919 CABLE, THROTTLE (HONDA ENGINE) 1
17793 CABLE, THROTTLE (ROBIN ENGINE) 1
19. F013203TCS THREAD CUTTING SCREW, #6-32 X 3/8” 2
20. F042004HCS HEX HEAD CAP SCREW, 1/4”-20 X 1/2” 3
21. F042032HCS HEX HEAD CAP SCREW, 1/4”-20 X 4” 1
22. F0420ELN LOCKNUT, 1/4”-20 1
23. F05SW WASHER, 5/16” 1
24. F051808SCS SOCKET HEAD CAP SCREW, 5/16”-18 X 1” 2
25. F05LW LOCKWASHER, 5/16” 2
26. F081306HCS HEX HEAD CAP SCREW, 1/2”-13 X 3/4” 3
27. F08LW LOCKWASHER, 1/2” 3
KITS:
20949 KIT, SCREED DEMON KNOB & A-FRAME (INCLUDES ITEMS 6, 9, & 23)
*Dual power heads required for 18’ blades and above.

- 14 -
14
5
3
18
17
6
10
4
8 16
13
2
12
9
1
11
15
4
7
Exciter Assembly

- 15 -
ITEM PART NO. DESCRIPTION QTY
1. 06237 O-RING, 4.33 ID X 0.103 1
2. 17170 SHOCKMOUNT, 2” OD X 1-3/4” LONG 2
3. 17629 HOUSING, EXCITER 1
4. 17640 BEARING, BALL 2
5. 17643 SHOCKMOUNT, 1” OD X 1” LONG 4
6. 17645 COVER, EXCITER 1
7. 18547 KIT, CLAMPS (INCLUDES TWO CLAMPS AND ALL NECASSARY HARDWARE) 1
8. 17736 NUT, SQUARE, 3/8”-16 2
9. 17863 WASHER, FIBER, 0.25 X 0.38 X 0.03 3
10. 19864 EXCITER, SCREEDEMON 1
11. F042003SSS SOCKET HEAD SET SCREW, 1/4-20 X 3/8” 1
12. F042008SCS SOCKET HEAD CAP SCREW, 1/4”-20 X 1” 3
13. F061618HCS HEX HEAD CAP SCREW, 3/8”-16 X 2-1/4” 2
14. F0616DLN LOCKNUT, 3/8”-16 DEFORMED 2
15. F06LW LOCKWASHER, 3/8” 2
16. F06SW WASHER, 3/8”
17. F081306HCS HEX HEAD CAP SCREW, 1/2”-13 X 3/4” 2
18. F08LW LOCKWASHER, 1/2” 2

- 16 -
4
8
9
2
1
5
6
7
10
11
3
Engine and Engine Mount

- 17 -
ITEM PART NO. DESCRIPTION QTY
1. 09618 FITTING, PLUG 1
2. 15304 SCS, M6 X 25mm 1
3. 17296 SWITCH, ENGINE STOP 1
4. 17634 FLANGE, ENGINE MOUNT 1
5. 17635 BEARING, BALL, SEALED, 6800 1
6. 17636 SPLINE SHAFT (DOES NOT INCLUDE ITEM 8) 1
7. 17637 STUD, 1/4-20 X 3/4 1
8. 17711 RUBBER SEAL 1
9. 19211 ENGINE, HONDA GX35NTT3 (INCLUDES 3, 10 & 11) 1
10. 19226 SPACER, KILLSWITCH, PLATED 1
11. M05C025BCS BCS, M5 X 25mm 1
KITS:
17638 MOUNT, ENGINE (INCLUDES ITEMS 4 TO 8) 1
17885 ADHESIVE, 426 LOCTITE, 10g (NOT SHOWN) 1