Harper Debris Blower DB2700, Debris Blower DB3600 Operator's Manual
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Blower
Operator’s Manual
DB2700
Debris
DB3600
Debris Blower
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5/2013
2/2012
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Debris Blower
Thank you for purchasing a Harper Debris Blower.
As with all Harper products, the Debris 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 DB2700 and DB3600. Please read and understand all instructional material included with the Debris Blower or its components before assembling and operating
the equipment.
A Debris 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
clarication.
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 specications 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.
Debris Blower
© 2013 Harper Industries, Inc.
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LIMITED WARRANTY
The Harper Debris 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).
Engines are not covered under this warranty. Refer to manufacturer’s
warranty for specic warranty information. Harper Industries, its agents or
representatives, make or imply no other warranties.
RECORDS
Date of Purchase ______ / ______ / ______
Dealer’s Name _________________________________
Dealer’s Phone _________________________________
Serial Number Machine __________________________
Serial Number Engine ___________________________
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Debris Blower
Table of Contents
OPERATOR SECTION
To the Owner or Operator............................................
Warranty Statement......................................................
Table of Contents..........................................................
Specications................................................................
Safety Information
Equipment & Control........................................
Guards & Shields.............................................
Safety Decals...................................................
Before Operation..............................................
Operation..........................................................
Control Identication
PTO Shaft.........................................................
3-Point Hitch Pins.............................................
Input Shaft........................................................
Diverter Handle Assy........................................
Belt Tensioner...................................................
Impeller Shaft....................................................
Caster Wheels..................................................
Assembly.........................................................................
Operation
To begin operation............................................
To stop operation..............................................
Adjustments
Belt Tension Adjustment...................................
Cable Adjustment..............................................
Service & Maintenance
Break-in Service...............................................
Lubrication........................................................
Troubleshooting
Belts..................................................................
Standard Torque Chart....................................................
1
2
3
4
5
5
5
5
6
7
7
7
7
7
7
7
8
9
9
10
10
10
10
11
11
PARTS SECTION
DB2700
Components.....................................................
Diverter.............................................................
PTO - 940015...................................................
PTO - 942217...................................................
PTO - 943045..................................................
Decals...............................................................
DB3600
Components.....................................................
Diverter.............................................................
PTO - 943010...................................................
PTO - 943023...................................................
PTO - 943040...................................................
PTO - 943046 (current)....................................
Decals...............................................................
16
18
20
21
22
23
24
26
28
29
30
31
32
Debris Blower
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Specications
Air Flow:
Noise:
Blower Housing:
Fan:
Drive:
Belt Drive:
Tractor Mounting:
Casters:
3600
2700
3600
2700
3600
2700
3600
2700
3600
2700
7100 CFM (approx. 225 mph)
4000 CFM (approx. 220 mph)
94 decibels (At operator in tractor seat.)
81 decibels
40” (Split design for east fan replacement.)
31”
36” diameter
27” diameter
540 RPM PTO belt drive
4 - 5VX530 V-belts with automatic tensioner
1 - 4/3CX425
3 Point Hitch - Category #1
Heavy-duty 10” adjustable caster wheels
Heavy-duty 8” adjustable caster wheels
Anit-Scalp:
Dimensions:
Air-Flow Control:
3600
2700
Tough 3” diameter rollers
Length 48”, Width 64”, Height 45”
Length 43”, Width 48”, Height 36”
Bi-directional discharge (left or right) controlled
from operator seat
Approx. Weight:
Power
Requirement:
3600
2700
3600
2700
825 lbs.
425 lbs.
30 hp at PTO (minimum)
20 - 30 hp at PTO
Superior Construction in every model:
Every Harper Debris Blower has a durable polyester baked paint nish, with epoxy
primer applied to cover completely and keep moisture out. This nish is extremely strong,
and resists chipping and cracking.
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Debris Blower
Safety Information
Equipment & Controls
• Altering this equipment in any manner
which adversely affects its operation,
performance, durability, or use will
void the warranty and may cause haz ardous conditions.
• Know the location and function of
all controls and how to stop this equip ment quickly in an emergency before
you operate the equipment.
READ AND UNDERSTAND THE
OWNER’S MANUAL.
• Keep all nuts, bolts and screws tight
to help ensure safe operation of this
equipment.
Guards & Shields
• Keep the equipment and attach-
ments in good operating condition,
and keep all safety devices in place.
Replace all worn, damaged, unusable,
missing or lost safety shields and
guards before operating the equip ment.
Safety Decals
• If safety related or instructional decals
become illegible or are removed,
replace them immediately.
• If you replace parts that have such
decals attached to them, make sure
the decals are replaced with current
versions, and that the decals are on
the replacement parts before the
machine is operated again.
• Use genuine factory parts or parts with
equivalent characteristics, including
type, strength and material. Failure to
do so may result in product malfunc tion and possible injury to the operator
and/or others.
• Replace locknuts and locking screws
if you can tighten them without feel ing considerable resistance for sev eral turns before they are completely
tight. Replace them with factory autho-
rized parts or their equivalent.
• If hardware is not secure, or if some
of the hardware is over-tightened,
equipment failure may result, posing
possible safety hazards.
• New decals may be obtained from
your local Harper Dealer.
SAFETY WARNING!
• To prevent possible eye injury, al-
ways wear SAFETY GLASSES while
servicing the equipment.
Before Operation
• Before operating this equipment, read
and understand the Owner’s Manual.
• Do not allow children to operate this
machine.
• Never operate this machine in the
vicinity of bystanders.
• Before servicing or inspecting the
machine, make certain that the power
source is shut down, make certain all
moving parts have stopped and
disconnect the PTO shaft.
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• Never allow hands, clothing or any
part of the body to enter the discharge
chute or near moving parts.
• Keep your face and all body parts
away from inlet and discharge
openings.
• Avoid wearing loose-tting clothing.
• Wear approved eye and ear protection
while operating the machine.
• The machine should be operated on
level surfaces only.
• Before starting the machine, visually
inspect all nuts, bolts and other
fasteners to see that they are properly
secured. Nuts, bolts and other
fasteners should be checked every 8
to 10 hours of operation for proper
alignment and tightness.
Operation
• Make certain the impeller chamber is
empty before starting the machine.
• If a foreign object should strike the
impeller mechanism of the machine
and cause an unusual noise or
vibration, shut the engine or PTO off
immediately and allow it to come to a
complete stop. Disconnect the spark
PTO shaft from the power unit, and
then do the following:
1. Inspect for damage.
2. Repair or replace any damaged
parts.
3. Check for and tighten any loose
bolts, nuts, fasteners or parts.
• Keep debris material from building up
in the discharge and inlet area, as this
may prohibit proper discharge of
airow and can cause poor
performance.
• Keep the impeller inlet area clean from
debris and other accumulations.
• Stay away from the discharge area
when machine is in operation.
• If the Debris Blower should become
clogged, shut off the engine or PTO
and allow it to come to a complete
stop. Disconnect the spark plug wire
from the spark plug or PTO shaft
before clearing debris.
• Do not allow hands, clothing or any
part of the body to enter the discharge
chute, impeller inlet or near any
moving parts.
• Replace damaged or missing safety
decals.
• Keep hands, feet and clothing away
from PTO driven parts.
• Keep all guards and shields in place
during operation. Disengage PTO and
shut off the engine before removing
guards or shields.
• Never attempt to adjust, clean or
lubricate the machine while it is in
operation.
• Operator should never wear loose
clothing when working around PTO.
• Before starting tractor, make sure that
the transmission and PTO are
disengaged.
• Make sure the tractor’s engine is at
idle speed before engaging the PTO.
• Be sure the tractor’s engine is at idle
before changing the airow of the
Debris Blower Diverter.
• Keep all safety shields and guards in
place and in good working condition.
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Debris Blower
Control Identication
3 PT. Hitch
Pins
Diverter Handle
Assembly
Impeller Shaft
PTO Shaft
Input Shaft
1. PTO Shaft – Transfers power from the
tractor to the Debris Blower. Make
sure up or down angle of PTO shaft
does not exceed 15 degrees. (2
grease ttings)
2. 3-Point Hitch Pins – Mount the Debris
Blower to the 3-point hitch pins.
3. Input Shaft – Driven by the PTO shaft.
Always disconnect the PTO from the
tractor when performing maintenance.
(2 grease ttings)
4. Diverter Handle Assembly – Changes
direction of discharge air ow. Make
sure handle is locked into place before
operating.
Caster Wheels
5. Belt Tensioner – Spring loaded and
keeps the belts within proper tension
ing.
6. Impeller Shaft – Belt driven by input
shaft. (2 grease ttings)
7. Caster Wheels – Carry weight of ma chine during operation when 3-point
hitch is in oat position. (1 grease t-
ting per wheel)
SAFETY WARNING!
Keep all safety shields in place during
operation.
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Assembly Operation
1. Remove from crate.
2. Mount Diverter Handle Assembly to
the frame of the machine with the two
3/8” bolts already in the frame.
SAFETY WARNING!
• Wear approved eye and ear
protection while operating the
Debris Blower.
3. Connect PTO shaft to input shaft of
machine, tighten set screws on shaft.
4. Mount 3-point pins on Debris Blower.
5. Mount Debris Blower to 3-point of trac tor and connect PTO shaft.
Note:
A set of belts between the PTO shaft
and the impeller shaft assembly drive the
fan blades whenever the PTO drive-shaft
is turning.
On initial operation of the Debris
Blower, the belts may shrink and need
readjustment after the rst hour of use.
When readjusting belt tension, use a
straightedge across the faces of pulleys to
make sure they are properly aligned and
the belts will run true.
SAFETY WARNING!
• Keep pants and loose clothing away
from PTO drive and shaft and all
drive pulleys, belts and shafts.
• Never operate the Debris Blower
beyond the suggested 540 PTO
speed.
• Do not attempt to service machine
while it is in operation.
• Keep all guards in place during
operation. Never operate the Debris
Blower with safety shields removed.
• Before operating the machine,
check to ensure that all belt guides
and tensioner are in place to
prevent belts from slipping off the
pulleys and systems from being
accidentally engaged.
• Check inlet and discharge housings
for children, pets and foreign
objects before operating.
• Keep clothing and all body parts
away from rotating parts. Do not
wear loose tting clothing.
• Periodically clean debris material
away from the machine to lessen
the possibility of re. Always keep a
re extinguisher near the Debris
Blower during operation.
• Impeller blade rotation cannot be
controlled from the Debris Blower.
• Obtain and wear safety glasses
when operating this machine.
Note:
A safe operator is one who practices
safety and uses good common sense to
protect himself from ying material.
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Debris Blower
To begin operation:
1. Mount Debris Blower to 3-point of trac tor and connect PTO shaft to tractor
output shaft.
To stop operation:
1. Move throttle on tractor to the slow
position and disengage the PTO lever
on the tractor.
2. Adjust center link on tractor so that the
Debris Blower is setting level at the
ground surface while 3-point hitch is in
FLOAT position.
3. Move Diverter Handle to the desired
output direction.
4. Engage PTO lever on the tractor AT
IDLE SPEED of the tractor and begin
operation of the Debris Blower.
5. If the operator needs to change direc-
tion of airow of the diverter, make
sure the tractor is at idle speed.
6. If it is necessary to inspect or work on
the Debris Blower, always disengage
the PTO shaft and shut off the tractor
engine before doing so.
2. Shut off the tractor engine and allow
the machine to come to a complete
stop.
SAFETY WARNING!
• The Impeller is heavy and will con-
tinue to turn even though the opera tor has shut off the power source.
• Do not attempt to service or inspect
the machine until you see that the
shafts have stopped turning and
that there is no noise coming from
the machine.
SAFETY WARNING!
• Belts may become severely dam-
aged by engaging PTO shaft at high
RPM.
• To avoid personal injury, always
keep face and body parts away from
inlet and discharge openings.
• Never leave this machine unattend-
ed.
• Make sure the tractor engine has
been shut off and the PTO shaft has
been disconnected before attempt ing any service or inspection.
Debris Blower
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