Jacobsen 32251 Owner's manual

Brand: Jacobsen

Model: 32251

Category: Lawnmowers

Type: Owner's manual

This manual is also suitable for

Technical Manual

WARNING

Warning: If incorrectly used, this machine can

cause severe injury. Those who use and maintain

this machine should be trained in its proper use,

warned of its dangers, and must read the entire

manual before attempting to set up, operate, adjust,

or service the machine.

HoverKing

™

32251 – 20 Inch (50.8 cm) HoverKing

32252 – 20 Inch (50.8 cm) Metal Blade Kit

32253 – 20 Inch (50.8 cm) Plastic Blade Kit

32254 – 20 Inch (50.8 cm) String Cutter Kit

32255 – 20 Inch (50.8 cm) Handle Extension Accessory

32257 – 16 Inch (40.6 cm) HoverKing

32258 – 16 Inch (40.6 cm) Metal Blade Kit

32259 – 16 Inch (40.6 cm) Plastic Blade Kit

32260 – 16 Inch (40.6 cm) String Cutter Kit

32261 – 16 Inch (40.6 cm) Handle Extension Accessory

32256 – Wheel Kit

4325163-Rev B

or portions thereof in any form.”

This manual contains safety, operating, adjustment,

maintenance, troubleshooting instructions and parts list

for your new Jacobsen machine. This manual should be

stored with the equipment for reference during operation.

Before you operate your machine, you and each operator

you employ should read the manual carefully in its

entirety. By following the safety, operating and

maintenance instructions, you will prolong the life of your

equipment and maintain its maximum efficiency.

If additional information is needed, contact your

Jacobsen Dealer.

The serial plate is located on the deck housing. Jacobsen

recommends you record these numbers below for easy

reference.

CHARLOTTE NC PRODUCT OF U.S.A.

A Textron Company

Proposition 65 Warning

This product contains or emits

chemicals known to State of California

to cause cancer and birth defects or

other reproductive harm.

FOREWORD

Suggested Stocking Guide

To Keep your Equipment fully operational and productive, Jacobsen suggests you maintain a stock of the more

commonly used maintenance items. We have included part numbers for additional support materials and training aids.

To order any of the following material:

1. Write your full name and complete address on your

order form.

2. Explain where and how to make shipment:

❑ UPS ❑ Regular Mail

❑ Overnight ❑ 2nd Day

3. Order by the quantity desired, the part number, and

the description of the part.

4. Send or bring the order to your authorized Jacobsen

Dealer.

LITHO IN U.S.A. 7-2015

Service Parts

Service Support Material

Qty. Part No. Description Qty. Part No. Description

4325116 Metal Blade (Package of 3) 4325134 1/2” HOC Spacer

4325126 Plastic Blade (Package of 6) 4325117 Blade Bolt, Metal Blade (Black)

4325146 String Cutter (Package of 50) 4325126 Blade Bolt, Plastic Blade (Silver)

4325118 20 Inch (508 mm) Blade Disk Washer

4325148 16 Inch (406 mm) Blade Disk Washer

Qty. Part No. Description

4325163 Technical Manual

Qty. Part No. Description

Table of Contents

Introduction

1.1 Important.............................................................................1

1.2 Product Identification ..........................................................2

1.3 Serial Number .....................................................................2

1.4 Guidelines for the Disposal of Scrap Products ...................3

Safety

2.1 How to Operate Safely........................................................4

Specifications

3.1 Engine Specifications..........................................................8

3.2 Dimensions and Weights ....................................................9

3.3 Cutting Unit Specification..................................................11

3.4 Recommended Lubricants ................................................11

3.5 Accessories.......................................................................11

3.6 Support Literature .............................................................12

Decals

4.1 Safety Decals....................................................................13

Set-up

5.1 General .............................................................................14

5.2 Initial Inspection ................................................................14

5.3 Engine Oil .........................................................................14

5.4 Handle Assembly ..............................................................15

5.5 Handle Mounting Holes.....................................................15

5.6 Blade Disk Torque ............................................................15

Controls

6.1 Handle Controls ................................................................16

6.2 Engine Controls ................................................................17

Operation

7.1 Daily Inspection.................................................................19

7.2 OPC System .....................................................................19

7.3 Operating Procedure.........................................................20

7.4 Starting The Engine ..........................................................21

7.5 To Stop The Engine..........................................................22

7.6 Mowing..............................................................................22

Maintenance and Lubrication Charts

8.1 Maintenance Chart............................................................23

Maintenance

9.1 General Precautions .........................................................24

9.2 Engine...............................................................................24

9.3 Engine Oil .........................................................................25

9.4 Engine Air Filter ................................................................25

9.5 Fuel ...................................................................................26

9.6 Engine Exhaust.................................................................26

9.7 Inspecting Cutter Disk.......................................................27

9.8 Care and Cleaning ............................................................28

9.9 Mower Storage..................................................................29

Adjustments

10.1 General Precautions .......................................................30

10.2 Height of Cut (HOC)........................................................30

10.3 Bail Cable Adjustment (20 inch Mowers) ........................31

10.4 Torque Specification .......................................................32

Problem Solving

11.1 General ...........................................................................33

Notes

Parts List

13.1 How To Use The Parts Catalog ......................................36

13.2 To Order Parts ................................................................36

13.3 Parts Catalog Table of Contents.....................................36

1 INTRODUCTION

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1Introduction

1.1 IMPORTANT______________________________________________________________

The Jacobsen HoverKing is a walk behind rotary mower.

If you follow all instructions in this manual, you increase the life of your mower and keep its maximum performance. The

adjustments and maintenance must always be done by an approved technician.

IMPORTANT: Do the maintenance included in this manual to make sure that the quality of cut is kept at a high level.

This SAFETY, OPERATION AND MAINTENANCE MANUAL is part of the mower and must stay with the mower always.

Suppliers of both original and used mowers need to keep the documentation that comes with the mower.

You must use the mower to cut the grass and not for any other purpose. Compliance with the conditions or operation,

service and repair specified by the manufacturer, are understood to be part of the correct use.

ALL operators MUST read through this manual and understand the Safety Instructions, controls, lubrication and

maintenance procedures.

Make sure that you obey all safety and road traffic regulations.

You must not make any changes to the mower that the manufacturer does not approve. This type of change can

release the manufacturer from the liability for any damage or injury.

When you discard worn parts, know the environmental result and use the systems available in the country where the

mower is used. When the mower is at its end of life, there are guidelines in this manual for the removal of the mower

from use.

Use only Jacobsen approved parts.

2006/42/EC

The instructions recorded here are the original instructions confirmed by Jacobsen, A Textron Company.

INTRODUCTION 1

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1.2 PRODUCT IDENTIFICATION _________________________________________________

Mower Serial number plate

The serial number plate is found on the deck housing near the air filter.

1.3 SERIAL NUMBER__________________________________________________________

Record the mower and engine numbers shown below:

Mower Number:_________________________

CHARLOTTE NC PRODUCT OF U.S.A.

A Textron Company

1 INTRODUCTION

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1.4 GUIDELINES FOR THE DISPOSAL OF SCRAP PRODUCTS _______________________

1.4.1 DURING SERVICE LIFE ____________________________________________________

The used oil is hazardous material. Follow the recommended procedures for their safe removal.

If a fluid leaks, contain the spill to make sure that the leak does not flow into the ground or drainage system. Follow the

local laws to make sure that leaks are controlled safely.

The maintenance procedures in this manual make sure that the damage that the mower can cause in the local

environment is controlled safely.

Take these actions after the mower complete its full service life.

1.4.2 END OF SERVICE LIFE _____________________________________________________

Use these guidelines with applicable Health, Safety and Environmental laws. Always use the approved local waste

disposal and agencies for recycled materials.

• Park the mower in a location to use all of the necessary lifting equipment.

• Use the correct tools and Personal Protective Equipment (PPE) and take instruction from the technical manuals

applicable to the mower.

• Remove and keep correctly

1. Fuel

2. Engine Oil

Disassemble the structure of the mower and refer to the technical manuals. Give attention to parts that have

mechanical pressure or tension applied to the part in the mower, including springs.

• Separate items that continue to have service life and returned to storage.

• Separate items that are worn into the material groups and removed according to the agencies for the recycled

materials that are available. Common types are as shown:

• Steel

• Non ferrous metals

• Aluminum

• Brass

• Copper

• Plastic Materials

• Identified

• Can be recycled

• Can not be recycled

• Not Identified

• Rubber

• Electrical and Electronic Components

• Add items that can not be easily separated into different materials to the “General discarded materials” area.

• Do not burn the discarded materials

Change the mower records to show that the mower is not in service and is discarded. Supply this serial number to

Jacobsen Warranty Department to close their records.

SAFETY 2

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2Safety

2.1 HOW TO OPERATE SAFELY ______________________________________________________

2.1.1 SAFE OPERATION

a Read the Operator’s Manual and other training material. If the operator or technician can not read this manual,

the owner is responsible to describe this material to the operators and technicians. Manuals in additional

languages may be available on the Jacobsen or RansomesJacobsen website.

a Read all of the instructions for this mower carefully. Know the controls and the correct operation of the

equipment.

b Children or persons who do not understand these instructions must not use the mower. The local regulations can

limit the age of the operator.

c Never use a mower near persons, including children or animals.

d Remember that the operator or owner is responsible for accidents or hazards that occur to other persons or their

property.

e Never allow persons to operate or service the mower or its attachments without correct instructions.

f Do not operate equipment while tired, sick or after you use alcohol or drugs.

2.1.2 PREPARATION

a When you operate the mower, wear correct clothing, slip resistant work shoes or boots, work gloves, hard hat,

safety glasses and hearing protection. Long hair, loose clothing or jewelry can be caught in moving parts.

b Do not operate the equipment with the OPC System disconnected or the system does not operate correctly. Do

not disconnect or prevent the operation of any switch.

c Never operate equipment that is not in correct order or without decals, guards, shields, deflectors or other

protective devices fastened.

d Inspect the mower before you operate the mower. Check the engine oil level. Fuel is flammable. Use caution

when you add the fuel to the mower.

e Operate the mower in daylight or in good artificial light. Use caution when you operate the mower during bad

weather. Never operate the mower with lightning in the area.

f Inspect the area to select the accessories and attachments that are needed to correctly and safely do the job.

Only use parts, accessories and attachments approved by Jacobsen.

g Be careful of holes in the terrain and other hazards that are not visible.

h Inspect the area where the equipment is operated. Remove all objects you can find before you operate. Be

careful of obstructions above the ground (low tree limbs, electrical wires) and also underground obstacles

(sprinklers, pipes, tree roots). Enter a new area carefully. Look for possible hazards.

i Inspect the cutting system before you start the mower. Make sure the blades are free to rotate.

WARNING

EQUIPMENT OPERATED INCORRECTLY OR WITHOUT TRAINING CAN BE DANGEROUS.

Know the location and correct operation of controls. Operators without experience must receive instruction from

another person that knows the correct operation of the equipment before you operate the mower.

Only use parts, accessories and attachments approved by Jacobsen.

2 SAFETY

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2.1.3 OPERATION

a Never operate the engine without enough ventilation or in an enclosed area. The carbon monoxide in the exhaust

fumes can increase to dangerous levels.

b Keep other persons or animals away from the mower.

c Only start the engine with the operator in the locations indicated. Never start the engine with persons near the

mower.

d Keep your hands and feet away from the cutting blades.

e Do not use on the slopes greater than the safe slope limit for the equipment.

f To guard against loss of control:

– Operate the mower across the face (horizontally), but not up and down on the face of slopes (vertically).

– Do not start or stop suddenly on slopes.

– Decrease the speed when you operate on slopes or when you must turn. Use caution when you change

direction. Turf condition can change the mower stability.

– Use caution when you operate the mower near drop-offs, ditches or embankments.

– Be careful of holes in the terrain and other hazards that are not visible.

g Always operate at speeds that allow you to have complete control of the machine. Make sure of your footing keep

a tight grip on the handle and walk. Never run when you operate the mower.

h Use caution when you go near corners, trees or other objects that can prevent a clear view.

i Before you move across or operate on the paths or roads, release the OPC handle and lift the mower. Look for

traffic.

j Stop the engine when the mower is on any surface that is not grass.

k Do not release the cut grass in the direction of persons or allow persons near the mower while in operation.

l Do not operate the mower with damaged guards or without safety devices in position.

m Do not change the engine governor setting or over-speed the engine. Never change or tamper with adjusters that

are closed with a seal for the engine speed control.

n Before you leave the mower, for any reason:

– Release the OPC handle to stop the engine and allow the mower to settle to the ground.

o When you hit an object or mower starts to cause the vibration that is not normal, inspect the mower for damage

and make repairs.

p Do not use this equipment for uses that the mower was not made for.

2.1.4 SAFE HANDLING OF FUELS

a The fuel and the fuel vapors are flammable. Use caution when you add the fuel to the mower. The fuel vapors

can cause an explosion.

b Never use the containers that are not approved to keep or transfer fuel.

c Never keep the mower or fuel containers near an open flame or any device that can cause the ignition of fuel or

fuel vapors.

d Never fill the fuel containers inside a vehicle or on a truck or trailer with a plastic liner. Always put the fuel

container on the ground away from your vehicle before you fill the container.

SAFETY 2

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e Refuel the mower before you start the engine. When the engine is in operation or while the engine is hot, never

remove the fuel cap or add fuel to the mower.

f Refuel outdoors only and do not smoke when you add fuel. Extinguish all types of ignition.

g The fuel nozzle must touch the rim of the fuel tank when you add fuel to the mower. Do not use a device to lock

the fuel nozzle in the open position.

h Do not over fill the fuel tank. Leave at least 1 inch (25 mm) below the filler neck.

i Always tighten the fuel tank cap and container cap after you add fuel.

j If the fuel spills on your clothing, change your clothing immediately.

2.1.5 MAINTENANCE AND STORAGE

a Before you clean, adjust or repair this equipment, stop the engine and disconnect the spark plug wire. Keep the

wire away from the plug to prevent the engine to start.

b Make sure the mower is stored on a solid and level surface.

c Never allow persons to service the mower or its attachments without correct instructions.

d When you put the mower on a trailer or put the mower in storage, close the fuel valve. Do not keep fuel near

flames or drain the fuel inside a building.

e Be careful and wear gloves when you check or service the cutting unit blades. Replace any damaged blades, do

not try to correct a damaged blade.

f Keep your hands and feet away from parts that move. Do not adjust the mower with the engine in operation,

unless the adjustment needs the engine in operation.

g Keep the mower and the engine clean.

h Allow the engine to become cool before storage.

i Keep all nuts, bolts and screws tight to make sure the equipment is in safe condition.

j Replace worn or damaged parts for safety. Replace damaged or worn decals. Only use parts, accessories and

attachments approved by Jacobsen.

k To decrease the fire hazard, remove materials that burn from the engine, muffler, battery tray and fuel tank area.

2.1.6 WHEN YOU PUT THE MOWER ON A TRAILER

a Use straps, chains, cables or ropes to fasten the mower to the trailer.

2.1.7 CHILDREN

Children are often attracted to the mower when you are mowing. If the operator does not know that children in the area,

accidents can occur. You must never assume that children will continue to stay where you last saw them.

a When you operate the mower, keep children away. Children must be watched by an adult other than the operator.

b Stop the mower immediately if a child enters the area of operation.

c Never allow children to operate the mower.

2 SAFETY

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2.1 IMPORTANT SAFETY NOTES _______________________________________________

This safety alert symbol is used to alert you to potential hazards.

DANGER - Indicates an imminently hazardous situation which, if not avoided, WILL result in death or serious injury.

WARNING - Indicates a potentially hazardous situation which, if not avoided, COULD result in death or serious

injury.

CAUTION - Indicates a potentially hazardous situation which, if not avoided, MAY result in minor or moderate injury

and property damage. It may also be used to alert against unsafe practices.

NOTICE - Indicates a potentially hazardous situation which, if not avoided, MAY result in property damage. It may

also be used to alert against unsafe practices.

For pictor ial clarity, some illustrations in this manual may show shields, guards or plates open or removed. Under no

circumstances should this equipment be operated without these devices securely fastened in place.

By following all instructions in this manual, you will prolong the life of your machine and maintain its maximum

efficiency. Adjustments and maintenance should always be performed by a qualified technician.

If additional information or service is needed, contact your Authorized Jacobsen Dealer who is kept informed of the

latest methods to service this equipment and can provide prompt and efficient service.

WARNING

The Interlock System on this machine will stop the engine if the operator

releases the OPC (Operator Presence Control) bail.

To protect the operator and others from injury, never operate equipment with

the Interlock System disconnected or malfunctioning.

WARNING

1. Before leaving the operator’s position for any reason, release the OPC

bail. Allow the mower to settle to the ground.

2. Keep hands, feet, and clothing away from moving parts. Wait for all

movement to stop before you clean, adjust, or service the machine.

3. Keep the area of operation clear of all bystanders and pets.

4. Never operate mowing equipment without the guards securely fastened

in place.

SPECIFICATIONS 3

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3Specifications

3.1 ENGINE SPECIFICATIONS __________________________________________________

20 in. HoverKing 16 in. HoverKing

Make Honda Honda

Model GCV160 GXV57

Type Four cycle, overhead Cam Four cycle, overhead valve

Number of Cylinders 1 1

Bore and Stroke 2.5 in. (6.4 cm) x 2.0 in. (5.0 cm) 1.77 in. (4.5 cm) x 1.42 in. (3.6 cm)

Total Displacement

9.8 in

(0.160 l) 3.5 in

(0.057 l)

Intake System Naturally Aspirated Naturally Aspirated

Net Power 4.4 hp (3.3 kW) @ 3600 rpm 2.0 hp (1.5 kW)@ 4800 rpm

Torque 6.9 ft.Lb. (9.4 Nm) @ 2500 rpm 2.4 ft.Lb. (3.2 Nm) @ 4500 rpm

Maximum Speed 3600 ± 50 rpm (No Load) 4600 ± 50 rpm (No Load)

Low Idle 1400 ± 150 rpm (No Load) 2500 ± 200 rpm (No Load)

Rotation Counter-clockwise viewed at PTO shaft Counter-clockwise viewed at PTO shaft

Fuel Unleaded Gasoline, 87 Octane Minimum Unleaded Gasoline, 87 Octane Minimum

Fuel Tank Capacity 0.25 U.S. Gallon (0.93 l) 0.071 U.S. Gallon (0.27 l)

Engine Oil (API Class) 10W30 (SJ) 10W30 (SJ)

Oil Capacity 18.6 oz. (0.55 l) 8.4 oz. (0.25 l)

Start Method Recoil Start Recoil Start

Cooling System Forced Air Forced Air

Ignition System Transistorized Magneto Transistorized Magneto

Dry Weight 22 lb. (9.8 kg) 11.9 lb. (5.4 kg)

Dimensions

(Length x Width x Height)

14.4 x 13.0 x 13.7 in.

(36.7 x 33.1 x 34.7 cm)

9.8x 11.3 x 9.4 in.

(24.9 x 28.6 x 24.0 cm)

3 SPECIFICATIONS

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3.2 DIMENSIONS AND WEIGHTS ________________________________________________

20 Inch HoverKing 16 Inch HoverKing

A - Width of Cut 20 inch (50.8 cm) 16 inch (40.6 cm)

B - Maximum Width 23.4 inch (59.4 cm) 19.5 inch (49.5 cm)

C - Height (Standard Handle)

Handle at 30° angle from ground

36.7 inch (93.2 cm) 32 inch (81.3 cm)

D - Height (Extended Handle)

Handle at 30° angle from ground

46.5 inch (118.1 cm) 41.8 inch (106.2 cm)

E - Length (Standard Handle)

Handle at 30° angle from ground

59 inch (149.9 cm) 59 inch (149.9 cm)

F - Length (Extended Handle)

Handle at 30° angle from ground

76 inch (193.04 cm) 76 inch (193.04 cm)

G - Handle Length (Standard Handle) 50 inch (127 cm) 50 inch (127 cm)

H - Handle Length (Extended Handle) 67 inch (170 cm) 67 inch (170 cm)

Weight of unit, fuel tank filled x x

Weight of unit, fuel tank empty x-1.278 x-.45369

SPECIFICATIONS 3

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20 inch (50.8 cm)

HoverKing

(Standard Handle)

16 inch (40.6 cm)

HoverKing

(Standard Handle)

20 inch (50.8 cm)

HoverKing

(Extended Handle)

3 SPECIFICATIONS

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3.3 CUTTING UNIT SPECIFICATION _____________________________________________

3.4 RECOMMENDED LUBRICANTS______________________________________________

Engine Oil:

Must meet MIL-L-46152 or API Classification grades SJ

3.5 ACCESSORIES ___________________________________________________________

3.5.1 METAL BLADE KIT ________________________________________________________

20 inch (50.8 cm) Kit number 32252

16 inch (40.6 cm) Kit number 32258

3.5.2 PLASTIC BLADE KIT_______________________________________________________

20 inch (50.8 cm) Kit Number 32253

16 inch (40.6 cm) Kit number 32259

Blade Length 4 in. (10.2 cm)

Number of blades 3

Height of cut 1 to 3 in. (2.5 to 7.6 cm)

Height of cut adjustment 1/2 in. (1.3 cm) spacers put between impeller

and blade disk.

Temperature Viscosity

Above 50° F (10° C) SAE 10W-30 or SAE 30

Below 50° F (10° C) SAE 10W-30

20 inch

(50.8 cm)

16 inch

(40.6 cm)

20 inch

(50.8 cm)

16 inch

(40.6 cm)

SPECIFICATIONS 3

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3.5.3 STRING CUTTER KIT_______________________________________________________

20 inch (50.8 cm) Kit Number 32254

16 inch (40.6 cm) Kit number 32260

3.5.4 HANDLE EXTENSION KIT ___________________________________________________

20 inch (50.8 cm) HoverKing Kit number 32255

Includes longer bail and throttle control cables.

16 inch (40.6 cm) HoverKing Kit number 32261

Includes longer OPC switch harness.

3.5.5 WHEEL KIT _______________________________________________________________

Kit number 32256

3.6 SUPPORT LITERATURE ____________________________________________________

Contact your Jacobsen Dealer for a complete listing of literature available for your mower.

Technical Manual: 4325163

Engine Manual

20 inch

(50.8 cm)

16 inch

(40.6 cm)

4 DECALS

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4Decals

4.1 SAFETY DECALS _________________________________________________________

Understand the purpose of these decals. The decals are important to the safe operation of the mower. REPLACE THE

DAMAGED DECALS IMMEDIATELY.

DANGER

Injury or death can occur from contact with the

blade or from the objects discharged from the

mower.

WARNING

Read the manual.

Wear safety glasses, hearing protection and other required safety equipment.

Be careful of discharged objects. When the mower is in operation, keep persons and animals away.

Be careful when you operate the mower on slopes. To prevent slips or falls, only mow when the grass is dry.

Your hands or feet can be injured from contact with the blades. To prevent injury, disconnect the spark plug wire before

you service the mower.

Stay away from hot surfaces and moving parts. Never operate equipment that is not in correct order or without decals,

guards, shields, deflectors or other protective devices fastened.

SET-UP 5

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5Set-up

5.1 GENERAL ________________________________________________________________

A qualified technician must always do the assembly, adjustment and mower tests. The technician must know the

correct operation of this equipment.

Completely read each instruction and make sure you understand the instructions before continue with the assembly.

Look for possible hazards and obey all safety precautions.

The RIGHT and LEFT, FRONT and BEHIND the machine are given from the operator’s position.

Order the accessories not included with this product separately. See the accessory instructions accessory for

installation and parts.

5.2 INITIAL INSPECTION _______________________________________________________

Do a visual inspection of the mower. Look for indications of wear or loose hardware. Look for any components that are

not included on the mower or damaged components. Inspect paint and decals for damage or scratches. Decals provide

important safety and operating information. Replace all missing or hard to read decals.

5.3 ENGINE OIL______________________________________________________________________

1. Place the mower on a flat and level surface.

2. Remove the oil cap/dipstick. Check to make sure there is no oil in the

crankcase.

3. Slowly add the correct amount of engine oil. Do not overfill the engine.

• 20 inch (50.8 cm) HoverKing - 18.6 oz. (0.55 l)

• 16 inch (40.6 cm) HoverKing - 8.4 oz. (0.25 l)

4. Wait three to five minutes and check the engine oil level.

• Clean the dipstick with a lint-free cloth.

• Insert the dipstick until the cap touches the engine base. Do not

screw the cap into the engine.

• Remove the dipstick. Engine oil must be between the upper and

lower level marks.

• If the engine oil level is above the upper level mark, remove the

excess engine oil.

• If the engine oil level is below the lower limit mark, add more engine

oil. Check the oil level again. Do not overfill the engine.

5. Insert the dipstick and hand tighten the oil cap.

6. Change the engine oil after the first 5 hours of operation.

CAUTION

Do not operate the mower unless you know this type of equipment and know how to operate all controls correctly.

NOTICE

Your mower was shipped from the factory without oil in the engine crankcase. Make certain the engine oil is

added before you start the engine. The damage caused by low or no oil in the engine is not covered under

the warranty.

Lower Limit Mark

Upper Limit Mark

Oil cap and

dipstick

Oil cap and

dipstick

20 inch

HoverKing

Engine

16 inch

HoverKing

Engine

5 SET-UP

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5.4 HANDLE ASSEMBLY ______________________________________________________

The handle was shipped with the upper handle

disconnected from the bottom handle.

1. Align the holes in the bottom handle with the holes in

the upper handle.

2. Insert the four carriage bolts from the upper handle

side. Secure with the four nylon insert hex flange

nuts.

3. Secure the handle control cable(s) to the bottom

handle using cable ties.

4. 20 Inch (50.8 cm) HoverKing: Make sure the bail

cable is inserted in the correct slot in the throttle

lever.

• When the standard handle is installed, the bail

cable must be in the upper slot.

• When the optional tapered handle is installed, the

bail cable must be in the lower slot.

5. Handle cables must be routed down handle and on

the right side of the engine. Do not wrap cables

around the left side of the engine.

NOTE: 20 inch (50.8 cm) HoverKing standard handle

shown. 16 inch (40.6 cm) HoverKing handle and optional 20 inch (50.8 cm) HoverKing tapered handle is assembled the

same way.

5.5 HANDLE MOUNTING HOLES ________________________________________________

The HoverKing has two mounting positions for the handle. Handle

positions are only recommendations. The handle should be

mounted so the operator has the best control of the mower based

on specific mowing conditions.

20 Inch (50.8 cm) HoverKing: The back hole is recommended for

operation on steep inclines. The front hole is recommended for

operation on more level terrain.

16 Inch (40.6 cm) HoverKing: The back hole is recommended for

operation on more level terrain. The front hole is recommended for

operation on steeper inclines.

5.6 BLADE DISK TORQUE______________________________________________________

Check torque on the blade disk. Do not over torque blade disk bolt or damage to the impeller bushing can result.

20 inch (50.8 cm) HoverKing - 38-40 ft. lb. (51-54 Nm)

16 inch (40.6 cm) HoverKing - 12-14 ft.lb. (16-19 Nm)

Carriage

Bolts

Nylon Insert Hex

Flange Nuts

Bottom

Handle

Upper

Handle

Upper Slot

Lower Slot

Handle

Cables

20 inch

HoverKing

16 inch

HoverKing

Back Hole

Front Hole

CONTROLS 6

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6Controls

6.1 HANDLE CONTROLS_______________________________________________________

6.1.1 BAIL HANDLE ____________________________________________________________

The bail handle controls the operation of the OPC (Operator Presence Control) system. The bail handle must be closed

before the engine will start. When the bail handle is released, the engine must stop within 3 seconds.

6.1.2 THROTTLE LEVER (20 INCH (50.8 CM) HOVERKING ONLY) _______________________

The throttle lever is to control the engine speed. Push the throttle lever forward to increase the engine speed. Pull the

throttle lever to decrease the engine speed. When you operate the mower, Jacobsen recommends that the engine

speed is at full throttle.

When you start a cold engine, pull the throttle lever completely toward the operator to close the choke plate. Slowly

push the throttle lever forward to increase the engine speed as the engine becomes warm.

6.1.1

6.1.2

20 inch

HoverKing

Handle

16 inch

HoverKing

Handle

6 CONTROLS

en-17

6.2 ENGINE CONTROLS _______________________________________________________

6.2.1 FUEL SHUT-OFF VALVE ____________________________________________________

Rotate the fuel shut off valve 90°to the CLOSED position to stop the flow of fuel to

the carburetor. The fuel valve must be in the OPEN position for the engine to

operate.

When the mower is not used or before you service the mower, close the fuel shut-off

valve.

6.2.2 STARTER HANDLE ________________________________________________________

The starter handle is used to start the engine. Slowly pull on handle until resistance is felt, then pull firmly. Do not allow

the starter handle to snap back into the recoil starter.

6.2.3 DIPSTICK/OIL CAP ________________________________________________________

The dipstick/oil cap is used to check the engine crankcase oil level and add oil to the engine.

6.2.4 AIR FILTER COVER________________________________________________________

The air filter cover holds the air filter in position to prevent dirt and debris being pulled into the engine.

6.2.5 FUEL TANK CAP __________________________________________________________

Remove the fuel tank cap to add fuel to the mower. When the engine operates, do not remove the fuel tank cap. Do not

start the engine unless the fuel cap is installed.

6.2.1

6.2.2

6.2.3

6.2.4

6.2.5

6.2.6

6.2.7

6.2.2

20 inch

HoverKing

Engine

16 inch

HoverKing

Engine

CLOSED

Position

OPEN

Position

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Jacobsen 32251 Owner's manual

Brand: Jacobsen

Model: 32251

Category: Lawnmowers

Type: Owner's manual

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Jacobsen 32251 Owner's manual

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Jacobsen 32251 Owner's manual

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