Harper DB1800 Operator's Manual

DEBRIS BLOWER

DB1800

Operator’s Manual

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.

Gasoline engines are not covered under this warranty. Refer to
manufacturer’s warranty for specific 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 ___________________________

Harper DB1800 2

Thank you for purchasing a Harper Debris Blower.

As with all Harper products, the Harper Debris Blower was developed through
tough design and testing procedures to produce a machine that can be relied on.
This manual gives assembly, operating, and service information for Model
DB1800 Debris Blowers. 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.

SYMBOL:

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 understand any
part of this manual, contact your dealer or Harper Industries, Inc. for clarification.

THE HOOD IS REMOVED IN THIS MANUAL FOR PURPOSES OF
ILLUSTRATION AND INSTRUCTION ONLY. DO NOT OPERATE THIS
EQUIPMENT UNLESS THE HOOD IS IN PLACE AND SECURED.

Harper Industries, Inc. is continually striving to improve the design and
performance of its products. We reserve the right to make changes in
specifications and design without thereby incurring any obligation relative to
previously manufactured products.

SAFETY WARNING!

SAFETY WARNING!

The Goossen and Harper names are registered trademarks of Harper Industries,
Inc. All other brand and product names are trademarks or registered trademarks

3 Harper DB1800

© 2007 Harper Industries, Inc.

of their respective companies.

Table of Contents

Limited Warranty ………………………………………. 2
Introduction ……………………………………………... 3
Table of Contents ……………………………………… 4
Specifications …………………………………………... 5
Torque Chart ……………………………………………. 5
Feature Identification: ……………………………….. 6

Operating Position
Control Panel
Battery
Fuel Tank

General Safety Guidelines: …………………………... 8

Fasteners

Gasoline
Guards & Shields
Safety Decals
Equipment & Controls
Before Operation
During Operation
Battery

Set-Up ……………..……………………………………... 10
Operation: ……………………………………………….. 11

Standard Procedure
Operating On A Slope
Stopping Operation
Initial Break-In

Maintenance: ……………………………………………..12

Maintenance Schedule
Maintenance Locations

Troubleshooting..………………………………………..13
Parts Section: …………………………………...……….15

Engine & Rockshaft
Frame Box
Hood & Screen
Electrical Schematic

Harper DB1800 4

Specifications

Engine 18 hp Kohler – Gasoline

Weight 425 lbs.

Dimensions Length – 103”, Width – 48”, Height – 40” min to 55” max

Blower 19” diameter, 10 fins

Output 185 mph, 9000 CFM

Blower Drive Direct drive from engine shaft

Nozzle Rotates 360 degrees

Noise Sound control technology limits noise to 84 dB at driver’s seat

Hood and Shroud Double-melt high-density polyethylene

Pin Hitch Towable with any utility vehicle

Warranty One year

The manufacturer reserves the right to make changes in engineeri ng, design and specifications or add
improvements at any time without notice or obligation.

Torque Chart

Size In.-Lb. Ft.-Lb. N-m

NOTE:
When tightening two or

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

more screws on the same
part, DO NOT tighten screws

¼ in. 60-80 18-20 7-9

completely right away, or one
at a time. To avoid distortion,

5

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

first tighten all screws in
sequence to one-third of

⅜ in. 340-360 64-74 24-27

torque value, then tighten to
two-thirds of torque value,

½ in. --- 126-150 90-100

then tighten to full value.

5 Harper DB1800

Feature Identification Model DB1800

MirrorHood

Vent

Leveling

Link

Control

Cable

DB1800 – Operating Position

Nozzle

Rockshaft

Leveling Link – Adjust the leveling link so

that the Debris Blower is horizontal while
in the tow position.

Nozzle – The nozzle rotates 360 degrees
and gives direction to the air flow.

Rockshaft – The rockshaft raises the unit
to allow clearance during transport.

Hood Vent – The hood vent filters the air
that is exhausted through the Debris
Blower nozzle at the same time cooling
the engine (keep clear at all times).

Mirror– The convex mirror allows the
operator to see the nozzle.

6 Harper DB1800

Control Cable – The engine controls are
on the control panel (refer to close-up).

Nozzle

Rotation

Engine

Rockshaft

Lift

DB1800 – Control Panel

V

Master Disconnect

Switch

Choke

Hour Meter

Tachometer

Ignition

DB1800 – Battery
Battery – The 12-volt, lead-acid battery is

shipped dry (without acid) and with the
battery cables disconnected. Before using
unit, remove plastic covers (2) and fill with
battery acid.

Master Disconnect Switch – Use master
disconnect to shut off unit in case of an
emergency and when in storage.

Hour Meter/Tachometer – Registers
engine RPM when engine is running and
hours used when engine is off.

Choke – Use choke to start cold engine.
Ignition – Use to start and stop engine.

Partially turn the ignition key clock-wise to
energize all functions of the unit.

Battery

Positive Cable – Before using unit, attach

the Positive Cable (red) to the positive
post (+) of the battery.

Negative Cable – Before using unit,
attach the Negative Cable (black) to the
negative post (-) of the battery.

DB1800 – Fuel Tank

Fuel Line

Fuel Gauge

Fuel Fill /

ent

Negative

Cable

Positive

Cable

Fuel Tank – 10-gallon capacity – Refer to

the Kohler engine manual for fuel
specifications.

Fuel Gauge – Measures fuel level in tank.
Fuel Fill / Vent – Fill tank at this location.

Make sure that vent is open during
operation.

7 Harper DB1800

General Safety Guidelines

SAFETY WARNING!

To prevent possible eye injury, always
wear SAFETY GLASSES while
operating or servicing the equipment.

SAFETY WARNING!

Use genuine factory parts or parts with
equivalent characteristics, including
type, strength and material. Failure to
do so may result in product
malfunction and possible injury to the
operator and/or others.

Fasteners

• 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.

• If hardware / fasteners are not secure,
or if some of the hardware is over­tightened, equipment failure may result,
posing possible safety hazards.

Gasoline

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

• Never fill 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
switches may cause sparks.

• Always store gasoline outdoors in a
safety can (a can which has a flame
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
explode easily and violently.

• Never store the equipment with
gasoline in the tank inside a building
where fumes may reach an open
flame or spark. Allow the engine to
cool before storing in any enclosure.

• Be certain to provide adequate
ventilation if an engine must be run
indoors - exhaust fumes are
dangerous.

SAFETY WARNING!

Gasoline is extremely flammable and
can be highly explosive.

• Allow engine to cool sufficiently before
refueling.

• Do not allow smoking, open flames or
sparks while performing maintenance
or refueling.

Harper DB1800

Guards & Shields

• Keep all guards, shields and safety

devices in place at all times, removing
only when necessary for service.

• Replace all worn, damaged, unusable,

missing or lost safety shields and
guards before operating equipment.

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