Demco 55 GALLON SKID MOUNT LAWN AND GARDEN SPRAYER User manual

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OPERATORS MANUAL
LAWN AND GARDEN SPRAYER
55 GALLON SKID MOUNT
DEMCO Dethmers Mfg. Co. 4010 320th St. P.O. Box 189 Boyden, IA51234
PH: [phone] Toll Free: 1-800-543-3626 FAX: [phone]
www.demco-products.com
ASSEMBLY
CALIBRATION
OPERATION
REPLACEMENT PARTS
READ complete manual CAREFULLY
BEFORE attempting operation.
12-04
AS20008, Rev 3
DOING OUR BEST TO PROVIDE YOU THE BEST

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Thankyou forpurchasing aDemco sprayer. Wefeel youhave madea wisechoice andhope youare
completelysatisfiedwithyournewpieceofequipment.Ifyouhaveanyquestionsregardingapplications
of certain solutions or chemicals, contact your chemical supplier and follow chemical manufacturer
recommendations as well as all licensing and use restrictions or regulations.
Table of Contents
Generalinformation.............................................................................................................2
WarrantyRegistration........................................................................................................ 3-4
Safety,SignalWords...........................................................................................................5
EquipmentSafetyGuidelines..............................................................................................6
Lighting and Marking ...........................................................................................................6
Safety Sign Locations.........................................................................................................7
Safety Sign Care ................................................................................................................8
BeforeOperation............................................................................................................... 8-9
DuringOperation .................................................................................................................9
FollowingOperation ...........................................................................................................10
HighwayandTransportOperations .....................................................................................10
PerformingMaintenance ....................................................................................................11
BoltTorque .........................................................................................................................12
FrameAssembly Parts Breakdown and List.......................................................................13
GasEngine/Roller PumpPlumbing PartsBreakdown (w/12Boom) ..................................14
GasEngine/Roller Pump PlumbingParts List andOperating Instructions (w/12Boom)....15
GasEngine/Roller PumpPlumbing PartsBreakdown (w/TrussTBoom)............................16
GasEngine/Roller Pump Plumbing Parts Listand Operating Instructions(w/Truss-T) .......17
DiaphragmPump Plumbing PartsBreakdown ....................................................................18
DiaphragmPump Parts List, Operation and Maintenance Instructions ...............................19
Electric Pump Plumbing Parts Breakdown and Parts List ..................................................20
12Boom (DB12)Assembly Parts Breakdown and List ......................................................21
Truss T Boom MountingAssembly Parts Breakdown and List............................................22
SprayWand(30L22425 18)Parts Breakdownand List .......................................................23
RollerPump (C4101)Parts Breakdownand List .................................................................23
Electric Pump (8000 543 150) Parts Breakdown and List ...................................................23
OptionalElectric Pump (2088 343 135) Parts Breakdown andList .....................................23
OptionalElectric Pump (10983)Parts Breakdown andList.................................................24
DiaphragmPump (D19GR) Parts Breakdown and List........................................................25
By-PassValve (8460) PartsBreakdown and List................................................................26
Direct-o-valve(6B1) PartsBreakdown and List ..................................................................26
TeeValve(AA171) Parts Breakdown and List.....................................................................26
SprayerChecklist ..............................................................................................................27
GENERAL INFORMATION
1. Unlessotherwisespecified,high-strength (grade5)
(3 radial-line head markings) hex head bolts are
used throughout assembly of this sprayer.
2. Whenever terms "LEFT" and "RIGHT" are used in
this manual it means from a position behind the
sprayer and facing forward.
3. When placing a parts order, refer to this manual for
proper partnumbers and placeorder by PART NO.
and DESCRIPTION.
WARNING: TO AVOID PERSONALINJURY OR PROPERTYDAMAGE, OBSERVE
FOLLOWING INSTRUCTIONS:
Chemicals are dangerous. Know exactly what you're going to do and what
is going to happen before attempting to work with these products. Improper
selection or use can injure people, animals, plants and soil.
Alwayswear protective clothing such ascoveralls,goggles and gloves when
working with chemicals or sprayer.
Be sure to dispose of all unused chemicals or solutions in a proper and
ecologically sound manner.

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How satisfied are you with our product? ❍❍❍❍
How satisfied are you with the dealership/distributor sales staff? ❍❍❍❍
Dealer/Distributor Name City State
How satisfied are you with the company sales staff? ❍❍❍❍
How satisfied are you with the delivery? ❍❍❍❍
Did you have any contact with a Demco Representative? YES NO
If YES, how satisfied were you? ❍❍❍❍
I would recommend this product to my family and friends. YES NO
Would you purchase again from DEMCO? YES NO
Since taking delivery, have you been contacted by the dealer? YES NO
Did you have any problems with this DEMCO product? YES NO
If YES, are you satisfied with the company’s resolution of your problem? ❍❍❍❍
Why did you purchase this product?
Please list the specific source of information prompting this purchase.
After purchasing this product, do you see any needed product improvement? If yes, what improvement?
What other products would you like to see DEMCO offer?
Comments
Owner’s Name: Mailing Address:
City: State: Zip Code:
Model#:
Serial #:
Purchase Date:
Owner’s Signature:
Please return to DETHMERS MFG. CO. By FAX or tri-folding this form to the backside, it is pre-addressed.
Ag ❍
RV ❍
Rental ❍
Brakes ❍
Marine ❍
Warranty Registration
Dethmers Manufacturing Company
4010 320th Street • Box 189 • Boyden, Iowa 51234
Toll Free 800-54DEMCO (800-543-3626) • FAX [phone]
www.demco-products.com Very
Satisfied Satisfied
Very
Dissatisfied
Dissatisfied

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Postage
Dethmers Manufacturing Company
4010 320th Street, Box 189
Boyden, Iowa 51234

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SAFETY
TAKE NOTE! THIS SAFETY ALERT SYMBOL FOUND THROUGHOUT THIS
MANUAL IS USED TO CALL YOUR ATTENTION TO INSTRUCTIONS INVOLVING
YOUR PERSONAL SAFETY AND SAFETY OF OTHERS. FAILURE TO FOLLOW
THESE INSTRUCTIONS CAN RESULT IN INJURY OR DEATH.
THIS SYMBOL MEANS
ATTENTION
BECOME ALERT
YOUR SAFETY IS INVOLVED!
SIGNAL WORDS
Note use of the following signal words DANGER,
WARNING, and CAUTION with safety messages.
Appropriatesignal wordforeachhasbeenselected
using the following guidelines:
DANGER:
Indicates an imminently hazardous situation that,
if not avoided, will result in death or serious injury.
Thissignal wordistobelimitedtothemostextreme
situationstypicallyfor machinecomponentswhich,
for functional purposes, cannot be guarded.
WARNING:
Indicates a potentially hazardous situation that, if
not avoided, could result in death or serious injury,
and includes hazards that are exposed when
guards are removed. It may also be used to alert
against unsafe practices.
CAUTION:
Indicates a potentially hazardous situation that, if
notavoided,mayresultin minorormoderateinjury.
Itmayalsobe usedtoalertagainstunsafepractices.
Ifyou havequestionsnotansweredinthismanual ,requireadditionalcopies,orifyour manualisdamaged,
please contact your dealer or Dethmers Mfg. Co., P.O. Box 189, 4010 320th Street, Boyden, IA 51234
ph: [phone] or [phone] Toll Free: 1-800-543-3626 Fax: [phone]
http://www.demco-products.com

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SAFETY...YOU CAN LIVE WITH IT
EQUIPMENT SAFETY GUIDELINES
Every year many accidents occur which could have been avoided by a few seconds of
thought and a more careful approach to handling equipment. You, the operator, can avoid
many accidents by observing the following precautions in this section. To avoid personal
injury, study the following precautions and insist those working with you, or you yourself,
follow them.
In order to provide a better view, certain illustrations in this manual may show an assembly
witha safetyshieldremoved.However,equipmentshouldneverbeoperatedin thiscondition.
Keep all shields in place. If shield removal becomes necessary for repairs, replace shield
prior to use.
Replace any caution, warning, danger or instruction safety decal that is not readable or is
missing. Location of such decals is indicated in this booklet.
Do not attempt to operate this sprayer under the influence of alcohol or drugs.
Review safety instructions with all users.
Operator should be a responsible adult. DO NOT ALLOW PERSONS TO OPERATE OR
ASSEMBLE THIS UNIT UNTIL THEY HAVE DEVELOPED A THOROUGH UNDERSTANDING
OF SAFETY PRECAUTIONS AND HOW IT WORKS.
To prevent injury or death, use a tractor equipped with a roll over protective system (ROPS).
Do not paint over, remove, or deface any safety signs or warning decals on your sprayer.
Observe all safety signs and practice instructions on them.
Never exceed limits of a piece of machinery. If its ability to do a job, or to do so safely is in
question-DON'T TRY IT.
LIGHTING AND MARKING
Itistheresponsibilityofcustomertoknowlightingandmarkingrequirementsof localhighway
authorities and to install and maintain sprayer to provide compliance with regulations. Add
extra lights when transporting at night or during periods of limited visibility.

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SAFETY SIGN LOCATIONS
Types of safety sign and locations on equipment are shown in the illustration below. Good
safety requires that you familiarize yourself with various safety signs, type of warning, and
area or particular function related to that area, that requires your SAFETY AWARENESS.
WARNING
To prevent serious injury or death
ï Refer to chemical supplier and manufacturer recommendations as well as all
licensing restrictions or regulations.
ï Always wear recommended protective clothing when working with chemicals or
sprayer.
ï Be sure to dispose of all unused chemicals or solutions in proper and ecologically
sound manner. Improper use can injure people, animals, plants and soil.
04/99 AB21014
This decal is located near the sprayer
lid. Replacement part # is AB21014.

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SAFETY SIGN CARE
Keep safety signs clean and legible at all times.
Replace safety signs that are missing or have become illegible.
Replacement parts that displayed a safety sign should also display current sign.
Safety signs are available from your distributor, dealer parts department, or factory.
How to install safety signs:
Be sure that installation area is clean and dry.
Decide on exact position before you remove backing paper.
Remove smallest portion of split backing paper.
Align decal over specified area and carefully press small portion with
exposed sticky backing in place.
Slowly peel back remaining paper and carefully smooth decal into place.
Air pockets can be pierced with a pin and smoothed out using piece of backing paper.
BEFORE OPERATION:
Carefully study and understand this manual.
Do not wear loose-fitting clothing which may catch in moving parts.
Always wear protective clothing and substantial shoes.
It is recommended that suitable protective hearing and eye protection be worn.
The operator may come in contact with certain materials which may require specific safety
equipment relative to handling of such materials. (Examples: extremely dusty, molds,
fungus, bulk fertilizers, etc.)
Give sprayer a visual inspection for any loose bolts, worn parts, or cracked welds, and make
necessary repairs. Follow maintenance safety instructions included in this manual.
Be sure there are no tools lying on or in equipment
Do not use sprayer until you are sure that area is clear, especially around children and
animals.
Don't hurry learning process or take sprayer for granted. Ease into it and become familiar
with your new equipment.
Practice operation of your equipment and its attachments. Completely familiarize yourself
and other operators with its operation before using.
Use a tractor equipped with Roll Over Protection System (ROPS) and fasten your seat belt
prior to starting engine.
Manufacturer does not recommend usage of a tractor with ROPS removed.

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Move tractor wheels to widest recommended settings to increase stability.
Do not allow anyone to stand between tongue or hitch and towing vehicle when
backing up to sprayer.
DURING OPERATION
Beware of bystanders, PARTICULARLY CHILDREN! Always look around to make sure that it
is safe to start engine of towing vehicle or move sprayer. This is particularly important with
higher noise levels and quiet cabs, as you may not hear people shouting.
NO PASSENGERS ALLOWED- Do not carry passengers anywhere on or in the tractor or
sprayer.
Keep hands and clothing clear of moving parts.
Do not clean, lubricate, or adjust your sprayer while it is moving.
When halting operation, even periodically, set tractor or towing vehicles brakes, disengage
PTO, shut off engine, and remove ignition key.
Be especially observant of operating area and terrain- watch for holes, rocks, or other hidden
hazards. Always inspect area prior to operation.
- DO NOT operate near edge of drop-offs or banks.
- DO NOT operate on steep slopes as overturn may result.
- Operate up and down (not across) intermediate slopes. Avoid sudden starts and stops.
Pick the most level possible route when transporting across fields. Avoid edges of ditches,
gullies, and steep hillsides.
Be extra careful when working on inclines.
Periodically clear sprayer of brush, twigs, or other materials to prevent buildup of dry
combustible materials.
Maneuver tractor or towing vehicle at safe speeds.
Avoid overhead wires. Contact with overhead lines could cause serious injury or death.
Avoidloosegravel,rocks,andholes;theycanbedangerousforsprayeroperationormovement.
Allow for unit length when making turns.
Do not walk or work under raised components or attachments unless securely supported.
Keep all bystanders, pets, and livestock clear of work area.
Never stand alongside of unit with engine running or attempt to start engine and/or operate
machine while standing alongside of unit.
Never leave running equipment attachments unattended.
Asaprecaution,alwaysrecheckhardwareonequipmentfollowingevery100hoursofoperation.
Correct all problems. Follow maintenance safety procedures.

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FOLLOWING OPERATION
Following operation, or when unhitching, stop tractor or towing vehicle, set brakes,
disengage PTO and all power drives, shut off engine and remove ignition key.
Store unit in an area away from human activity.
Donot parkequipmentwhereitwillbeexposed tolivestockforlongperiodsoftime.Damageand
livestock injury could result.
Do not permit children to play on or around stored unit.
Make sure all parked machines are on a hard, level surface and engage all safety devices.
HIGHWAY AND TRANSPORT OPERATIONS
Adopt safe driving practices:
- Keep brake pedals latched together at all times. NEVER USE INDEPENDENT BRAKING
WITH MACHINE IN TOW, LOSS OF CONTROL AND/OR UPSET OF UNIT CAN RESULT.
- Always drive at a safe speed relative to local conditions and ensure that your speed is low
enough for an emergency stop. Keep speed to a minimum.
- Reduce speed prior to turns to avoid risk of overturning.
- Always keep tractor or towing vehicle in gear to provide engine braking when going
downhill. Do not coast.
- Do not drink and drive!
Comply with state and local laws governing highway safety and movement of farm machinery.
Use approved accessory lighting flags and necessary warning devices to protect operators of
other vehicles on highway during transport. Various safety lights and devices are available
from your dealer.
Use of flashing amber lights is acceptable in most localities. However, some localities prohibit
their use. Local laws should be checked for all highway lighting and marking requirements.
Whendrivingatractorandsprayerunder20mph(40kph)dayornight,useflashingamberwarning
lights and a slow moving vehicle (SMV) identification emblem.
Plan your route to avoid heavy traffic.
Be a safe and courteous driver. Always yield to oncoming traffic in all situations, including narrow
bridges, intersections, etc.
Be observant of bridge loading ratings. Do not cross bridges rated lower than gross weight at
which you are operating.
Watch for obstructions overhead and side to side while transporting.
Always operate equipment in a position to provide maximum visibility at all times. Make
allowances for increased length and weight of sprayer when making turns, stopping, etc.