Harper Straw Blower 1800 Operator's Manual

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Straw Blower 1800

OPERATOR’S

Straw Blower

5-2016

MANUAL

Straw Blower

Thank you for purchasing a Harper Straw Blower.

As with all Harper products, the Straw Blower has been developed through tough design and testing procedures to produce a top quality machine. This manual gives assembly, operating, and service information for the models 1800. Please read and understand all instructional material included with the Straw Blower or its components before assembling and operating the equipment.

A Straw Blower can present hazards to an operator who follows unsafe procedures in either the operation or maintenance of the unit. Therefore, SAFETY WARNINGS are presented at certain locations in the text.

THIS SYMBOL: SAFETY WARNING!

MEANING: Failure to understand and obey this warning may result in injury to you or others. Whenever this symbol is used, please pay very close attention to the information presented, and make sure you fully understand. If you do not, contact your dealer or Harper Industries, Inc. for

clarication.

SAFETY WARNING!

ALL SHIELDS AND GUARDS MUST BE IN PLACE FOR PROPER AND SAFE OPERATION OF THIS EQUIPMENT. WHERE THEY ARE SHOWN REMOVED IN THIS MANUAL, IT IS FOR PURPOSES OF ILLUSTRATION AND INSTRUCTION ONLY. DO NOT OPERATE THIS EQUIPMENT UNLESS ALL SHIELDS AND GUARDS ARE IN PLACE.

Harper Industries, Inc. is continually striving to improve the design and performance of its

products. We reserve the right to make changes in specications and design without thereby

incurring any obligation relative to previously manufactured products.

The Harper name is a registered trademark of Harper Industries, Inc. All other brand and product

names are trademarks or registered trademarks of their respective companies.

Straw Blower

LIMITED WARRANTY

The Harper SB 1800 Straw Blower is warranted against defects in workmanship and materials for a period of TWELVE MONTHS from the original date of retail purchase to the original purchaser.

Harper Industries will repair or replace, at our option, any part which our examination shows to be defective. Warranty is limited to parts, labor and ground freight delivery of replacement parts. The user will pay freight charges for parts submitted under this warranty.

No product or part may be returned for warranty consideration without prior approval from Harper Industries.

This warranty does not apply to parts subjected to misuse, abuse, alteration, improper or inadequate maintenance, or normal wear (including belts and broom).

Gasoline engines are not covered under this warranty. Refer to manufacturer’s warranty for specic warranty information. Harper Industries, its agents or representatives, make or imply no other warranties.

Evaporative Emissions Control System Warranty

The evaporative emission control system is warranted for two (2) years. If any evaporative emission-related part on your equipment is defective in material or workmanship, the part will be repaired or replaced by Harper Industries Inc..

Your evaporative emission control system may include parts such as: fuel tanks,

fuel lines, fuel line ttings, fuel caps, carbon canisters, canister mounting brackets, carburetor purge port connection, lters, vapor hoses, clamps, control valves,

control solenoids, electronic controls, vacuum control diaphrams, purge valves, liquid/vapor separator and other associated components.

RECORDS

Date of Purchase ________ / ________ / ________

Dealer’s Name _____________________________

Serial Number Machine ________________________

Serial Number Engine _________________________

Dealer’s Phone _____________________________

Straw Blower

Table of Contents

OPERATOR SECTION

To the Owner or Operator............................................

Warranty Statement......................................................

Table of Contents..........................................................

Specications................................................................

Control Identication

Tub....................................................................

Tub Engagement Lever....................................

Engine..............................................................

Safety Door.......................................................

Hose Adapter (option).......................................

Cutting Knife Engagement Lever......................

Retractable Bale Rack......................................

Safety Guidelines

Gasoline...........................................................

Guards & Shields..............................................

Safety Decals...................................................

Assembly

Tub Cover Shield..............................................

Super-Flex Hose Installation............................

Directional Spout Installation............................

Battery...............................................................

Fuel Tank..........................................................

Operation

To Begin Operation...........................................

To Stop Operation.............................................

Adjustments

Belt Tension......................................................

Cutting Depth....................................................

Knife Replacement...........................................

Service & Maintenance...................................................

Troubleshooting..............................................................

Standard Torque Chart....................................................

11 11

12 13 13 14 15 16

Parts

Blower Through Assembly...............................................

Blower Through & Bale Tub Base Installation.................

Engaging Handle Arm Assembly.....................................

Engaging Handle Stop Assembly....................................

1 2 3 4

5 5 5 5 5 5 5

7 7 7

8 8 8 9

Gear Box Assembly.........................................................

Tub Shift Assembly..........................................................

Main Frame Components................................................

Bale Tub Assembly..........................................................

Electrical Assembly.........................................................

Engine Screen Assembly................................................

Final Assembly................................................................

Decal Placement.............................................................

Hose Adapter Assembly..................................................

Directional Spout Assembly............................................

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

1.9

1.10

1.11

1.12

1.13

1.14

Straw Blower

Specications

Engine Kohler gasoline powered

Horsepower Rating 14 hp

Dimensions Width - 31” Height - 51” Length - 55” Weight 490 lbs (shipping weight 565 lbs) Cutting Device 4 blade impeller - 16.5” diameter Knives 32 Discharge 6” x 30’ Super-ex hose or directional

spout

Harper Industries, Inc. is continually striving to improve the design and performance of its products. We reserve the

right to make changes in specications and design without thereby incurring any obligation relative to previously

manufactured products.

The Harper Straw Blower chops and applies straw for erosion control, bedding and mulching. The depth of the cut is easily adjustable while in operation to handle a variety of materials* and conditions. The standard 30’ hose provides even layering and pinpoint placement. The hose is pliable down to 20° F. Temperatures below 20° may cause polyurethane to crack when stretched. A 360° directional spout is available for broadcast operations.

*NOTE: Do not shred cardboard with a Harper Straw Blower. The density of cardboard will cause damage to the cutting knives and the rotor.

Straw Blower

Control Identication

Tub – the tub secures the bale as it rotates and gravity pulls the bale down into the cutting knives.

Tub Engagement Lever – engages the rotation of the tub.

Engine – powers the Straw Blower.

Safety Door – the door on the tub is spring

loaded to prevent objects from falling into the cutting knives, and debris from

ying out of hopper when no bale is

present.

Hose Adapter (option) – feeds the straw into

the Super-ex hose. The direction

spout may also be mounted in the

same location.

Cutting Knife Engagement Lever –

engages the cutting knives and

controls belt tension.

Retractable Bale Rack – pulls out to hold an

extra bale.

Straw Blower

Safety Guidelines

• Use genuine factory parts or parts with equivalent characteristics, includ ing type, strength and material. Fail ure to do so may result in product mal function and possible injury to the op erator and/or others.

• If hardware is not secure, or if some of the hardware is over-tightened, equip ment failure may result, posing poss ible safety hazards.

• To prevent possible eye injury, always wear SAFETY GLASSES while oper ating equipment.

• Replace locknuts and locking screws if you can tighten them without feeling considerable resistance for several turns before they are completely tight. Replace them with factory authorized parts or their equivalent.

Gasoline

arrestor and pressure relief valve in

pour spout).

• Gasoline fumes are heavy and will

sink to the lowest point, collecting and

becoming more and more hazardous.

1 part gasoline in 20 parts air will ex-

plode easily and violently.

• Never store the equipment with gaso-

line in the tank inside a building where

fumes may reach an open ame or

spark. Allow the engine to cool before

storing in any enclosure.

• Be certain to provide adequate ventila-

tion if an engine must be run indoors -

exhaust fumes are dangerous.

Guards & Shields

• Keep all safety devices in place.

• Replace all worn, damaged, unusable,

missing or lost safety shields and

guards before operating the equip-

ment.

• Keep the equipment in good operating

condition.

SAFETY WARNING!

Gasoline is extremely ammable and can

be highly explosive.

• Always use an approved container for gasoline.

• Do not allow open ames or sparks

while performing maintenance or refu eling.

• Never remove the fuel tank cap or add gasoline when the engine is running or while it is hot.

• Never ll the fuel tank indoors (fumes

can collect).

• Wipe up spilled gasoline immediately and completely.

• Do not store gasoline in a room with an appliance that has a pilot light to where electrical appliances or switch es may cause sparks.

• Always store gasoline outside, in a

safety can (a can which has a ame

Safety Decals

• If safety related or instructional decals

become illegible or are removed, re-

place them immediately. New decals

may be obtained from your local Harp-

er Dealer.

• If you replace parts that have such

decals attached to them, make sure

the decals are replaced with current

versions, and are on the replacement

parts before the machine is operated

again.

Straw Blower

Assembly

TUB COVER SAFETY SHIELD

Using the Hardware supplied:

1. Install the eyebolt through the top hole in

the rear tub wall with a at washer,

lock washer and nut on each side of the wall.

2. Mount the tub to the tub base with the truss-head bolts, lock washers and nuts provided. Put the bolt heads ins ide the tub to provide a smooth inside surface.

SUPER-FLEX HOSE INSTALLATION

Using the hardware supplied:

1. Mount the hose adapter to the Straw Blower.

3. Insert a 5/16” nut just past the rst thread

of each bolt. Put the front lip of the safety shield (lid) down inside the tub and screw one bolt into each coupler on the lid. Center the shield in the opening, and then lock it into position by tightening the 5/16” nuts against the edges of the shield.

4. Connect the tensioning spring from the eyebolt to the hole in the rear of the safety shield.

2. Attach the hose to the hose adapter with a 6” hose clamp, and secure the hose handle to the other end of the hose with two 6” hose clamps.

DIRECTIONAL SPOUT INSTALLATION

Using the hardware supplied:

1. Follow the instructions given in the Parts Section of this manual for the Direc tional Spout Assembly.

2. Mount the directional spout to the Straw Blower in the same location as the hose adapter.

Straw Blower

Engine Powered Models

BATTERY

The battery is shipped without electrolyte. Therefore, the battery must be lled with sulfuric acid electrolyte before the Straw Blower can be used.

SAFETY WARNING!

• Battery electrolyte can cause se vere burns if handled improperly.

• Observe all poison/ danger warn ings on electrolyte cartons and on the battery.

• Wear splash-proof goggles and protective clothing when adding electrolyte to batteries.

• Avoid contact of electrolyte with the skin, eyes, or clothing.

• KEEP BATTERIES AND ELECTRO LYTE OUT OF REACH OF CHIL- DREN.

• If electrolyte is spilled or splashed on the body, IMMEDIATELY FLUSH WITH WATER.

• If electrolyte comes into contact with the eyes, FLUSH WITH WA TER FOR 15 MINUTES AND GET PROMPT MEDICAL ATTENTION.

• If electrolyte is taken internally, DRINK LARGE QUANTITIES OF WA TER OR MILK, FOLLOWED WITH MILK OF MAGNESIA, BEATEN EGGS, OR VEGETABLE OIL.

To ll the battery with electrolyte:

1. Place the battery on a level surface and remove the vent caps. If the battery has thin plastic shields in the cell openings, remove and discard them.

2. Fill the battery with battery grade sulfuric acids to just above the separators. DO NOT OVERFILL.

3. Reinstall the vent caps, and charge the

battery as instructed below. AFTER

charging, check the acid level, and ll

to the bottom of the vent well open-

ings. DO NOT OVERFILL.

Charging the battery:

SAFETY WARNING!

• The battery can produce explosive

gasses.

• Ventilate when charging or using in

an en-closed space.

• DO NOT produce sparks from cable

clamps, tools, or other sources; and

• DO NOT allow ames or smoking in

the vicinity of the battery.

• Shield eyes when working near the

battery.

• Always keep the vent caps tight and

level.

1. Make sure the vent caps included with the

battery are installed.

2. Connect the battery to the charger accord-

ing to the manufacturer’s instructions

and charge at 10 amperes for 50 min-

utes, or 2-9 amperes for 2 hours (de-

pending on capabilities of charger).

Installing the battery:

1. Make sure the cable terminals and any

hard hold-down wires are clean. If the

battery is a replacement and the

connectors and hold-down have been

used before, clean them with a wire

brush.

2. Place the battery in the tray, located at the

right rear of the machine, and secure

the battery in position with the hold-

down provided.

Straw Blower

3. Connect the cables to the proper terminals, connecting the UNGROUNDED cable

rst. Do not over tighten. Apply a

commercial battery anti-corrosion material or petroleum jelly to the termi nals, to minimize corrosion.

FUEL TANK

SAFETY WARNING!

Gasoline is extremely ammable and can

be highly explosive.

• Make sure the vent valve on the gas cap is open. (If the cap is closed the engine will vapor lock and will not run.)

Straw Blower

Operation

SAFETY WARNING!

• Wear approved eye and ear protec tion while operating the machine.

• Keep all guards in place during operation. Never operate machine with the tub removed.

• Before operating the machine, check to ensure that all the belt guides and snubbers are in place, to prevent belts from slipping off the pulleys and systems from being accidentally engaged.

• Check the bale tub for children, pets and foreign objects before op erating.

• Never push material onto the cut ters with your hands or feet.

• Periodically clean chopped material away from engines to lessen the

possibility of re.

• Always keep the re extinguisher

near the Straw Blower during opera tion.

To stop operation:

1. Stop the tub rotation.

2. Disengage the rotor mechanism.

To begin operation:

1. Make sure tub and cutting rotor are NOT engaged.

2. Fill fuel tank with gas.

3. Make sure the vent on the fuel tank is open at least a quarter turn. (If it is closed the engine will vapor lock and will not run). 1300 model has no man ual vent.

4. Start the engine. Refer to engine manual for more information.

5. Engage the cutting rotor by pushing the rotor engagement lever down.

6. Place a bale into the tub.

7. Engage the tub rotation by moving the tub engagement lever towards the engine.

8. Add another bale when there is about 1/3 bale left in the tub.

Straw Blower

Adjustments

BELT TENSION

NOTE: Use only industrial V-belts. Do not

use automotive belts.

NOTE: Use a straightedge to check alignment across the faces of pulleys after adjusting belt tension, to ensure that the belts will run true.

IMPORTANT: Do not over tighten belts. Excessive tension can cause premature bearing, gearbox and clutch failure.

Engine Powered Models

• The tub rotation belt and the gearbox drive belt can both be adjusted by moving their respective idler pulleys in the slotted holes.

Straw Blower

CUTTING DEPTH

• The cutting depth is adjusted by mov ing a lever and putting it into the slot that gives the desired cutting depth. The adjustment is located at the rear of the machine.

KNIFE REPLACEMENT

SAFETY WARNING!

• Wear protective gloves whenever handling blades or working near them.

• Knives and their retaining hardware rotate at high speeds. It is essential that they be mounted securely to prevent accidents.

NOTE: If the serrations are worn down but

the tip of the knife is still intact, the knife may be turned around and remounted.

places from which the worn knives

were removed.

• Mount additional knives only as oppos-

ing pairs on each plate, and in the pat-

terns shown below.

• Do not remove nuts and bolts installed

as weights, unless mounting knives in

those holes.

NOTE: Mount the knives with bevel facing

impeller and alternate between the front and

back side of the plate.

To replace knives:

1. Remove the belt from around the tub.

2. Loosen the bolts mounting the rear tub

carrier bearings.

3. Slide the loosened bearings toward the

rear and remove the tub from the

Straw Blower.

4. Unbolt and remove the grate guide.

5. With the grate adjustment lever, rotate the

grate upwards and clear of the knives.

6. Remove and replace the knives as

necessary, using only Grade

5, ¼”-20 x ½” bolts and lock nuts,

treated with Loctite® (or equivalent).

Tighten lock nuts to 18 in. lbs.

7. Return the grate to its original position.

8. Reinstall the tub.

To maintain balance:

• Mount replacement knives only in the

Straw Blower

Service & Maintenance

BREAK-IN SERVICE

After the rst 10-15 bales:

1. Check belts, tighten if necessary.

2. Tighten setscrews on bearings.

3. Check the tub carrier bearings and make necessary adjustments.

GEARBOX

• No maintenance is required for the gearbox on the engine powered mod els unless the unit leaks. Use Mobil SHC 634 worm gear lubricant or equivalent.

ENGINE

• Follow the manufacturer’s mainte nance recommendations located in the engine manual.

• Contact a certied Kohler repair center

whenever warranty repair work is needed on the Straw Blower engine.

More Information

Your Harper dealer is the best source of upto-date information concerning Harper products.

Additional information is also available from the Harper Industries Service Department at 800-835-1042.

• The carrier bearing should run in the tub bearing grove. This keeps the tub spinning even.

BEARINGS

• The bearings are sealed and require no lubrication.

Straw Blower

Troubleshooting

ENGINE

Problem: What to Check:

Engine shuts off during operation • Engine may be low on fuel

• Engine may be low on oil (The Honda engine is equipped with an “Oil Alert” automatic shut off)

• Air breather may be clogged or closed.

BELTS

Problem: What to Check:

Belts slip • Tension Adjustment

• Load may be excessive

• Knives may be too dull

• Grate setting may be too low (cutting too deeply)

• Foreign material may be lodged in the chopper (on knives or blower paddles)

• Bearings may have seized

Belts wear rapidly, jump, catch or twist • Pulleys may not be properly aligned. Check with a

straightedge across the faces of pulleys.

CUTTING AND DISCHARGE

Problem: What to Check:

Hose plugs • Material being chopped may have too much moisture

in it.

• RPM may not be high enough. Adjust throttle to increase RPM to required levels. DO NOT adjust engine governor.

• Foreign material may be lodged in the hose

• Grate setting may be set too low

Slow cutting time • Grate setting may be too high

• Material being cut may be too wet

• Knives may be too dull

• RPM may be too low

Straw Blower

GEARBOX

Problem: What to Check:

Oil leaks • Housing bolts may be loose

• Oil seals may need replaced

Gearbox overheats • Oil level may be too low

• Dirt or grease may have accumulated around the gearbox

Gearbox vibrates, is very noisy • Oil level may be too low

• Components may be worn or damaged

• Load may be excessive

Standard Torque Chart

SAFETY WARNING!

Refer to the Standard Torque Chart whenever bolts, nuts or screws are tightened.

Size In-Lbs Ft-Lbs N-m

No. 10-24 25-35 5-7 2.8-4.0

1/4 in. 60-80 18-20 7-9

5/16 in. 120-140 28-30 14-16

3/8 in. 340-360 64-74 24-27 1/2 in. 126-150 90-100

Note: When tightening two or more fasteners on the same part, DO NOT tighten the fasteners completely one at a time. To

avoid distortion, rst tighten all fasteners in

sequence to one-third of torque value, then tighten to two-thirds of torque value, then tighten to full value.

Straw Blower