Husqvarna RB150 Instruction manual

101 89 07-26
Workshop Manual
RB150, RBH180
Eng-1 front 97-04-11, 15.361

ECONTENTS
INTRODUCTION...........................................................1
SAFETY RULES...........................................................2
SAFETY EQUIPMENT..................................................4
TECHNICAL DATA.......................................................5
SERVICE TOOLS ......................................................... 7
TROUBLE SHOOTING.................................................8
ELECTRICAL SYSTEM..............................................22
ENGINE ...................................................................... 55
POWER TRANSMISSION .......................................... 62
STEERING SYSTEM .................................................. 80
BRAKES ..................................................................... 86
CUTTING UNIT...........................................................90
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INTRODUCTION
Tools
Service tools will be required for certain items. All of
the appertaining service tools are listed in this
Workshop Manual. Their use is made clear in the
respective sections.
Always use genuine Huskvarna parts:
1. Spare parts
2. Service tools
3. Accessories
Arrangement
The descriptive sections of this manual are arranged
in the following manner:
Dismantling
Mounting
Adjustments
Figures that refer to the descriptive text are always
to the right of the relevant text.
References to items in the figure are numbered 1, 2,
3, and so on, and they begin anew in each new
section.
General
This Workshop Manual provides a detailed
description of trouble shooting, repairs and testing of
the riding mower. A description is also included of
the various precautions that are to be taken in
conjunction with repairs.
Safety
CAUTION
The section dealing with safety is to be
studied and understood by each person
before attempting to carry out repairs or
service on the riding mower.
Warning signs are affixed to the riding mower. If any
of the warning signs are missing or deformed they
are to be replaced with new ones without delay to
ensure the best possible safety when using the
appliance.
Target group
The Workshop Manual is intended for persons who
possess basic knowledge concerning the repair of
motor vehicles.
The Workshop Manual is to be studied by persons
who are to carry out repairs or service on the riding
mower.
Modifications
The riding mower will be subject to successive
modifications during production. Service bulletins
will be distributed in each particular case where
such modifications affect service and/or spare parts.
This implies that this Workshop Manual could in
time become obsolete. To avoid this, the manual is
to be read together with all of the distributed service
bulletins that apply for the relevant riding mower.
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SAFETY RULES
Special instructions
Fuel
The fuel that is used for the riding mower has the
following hazardous characteristics:
1. The fuel and its fumes are toxic.
2. Can cause irritation to the eyes and skin.
3. Can cause breathing difficulties.
4. The fuel is a fire hazard.
Remember the danger of fire
The engine can produce sparks that are a fire
hazard.
Ensure that the cutting blades do not make contact
with each other or other metal objects such as the
cover of the cutting unit. This could otherwise cause
sparks and fire.
Test running
The following restrictions apply when test driving the
riding mower.
1. No persons or animals are to be allowed near
the mower when driving it.
2. Wear ear protectors when test driving.
Brakes
Check for proper functioning of the brakes before
test driving. Adjust the brakes if the braking ability is
weak.
Cutting unit
The following inspection of the cutting unit is to be
completed before any test running of the cutting
unit.
1. Ensure that the shear pins of the cutting blades
are intact.
2. Ensure that cutting blades are at right angles to
each another.
3. Ensure that the cutting blades are properly
balanced. (See Operating instructions)
4. Ensure that the cutting blades are securely
fitted.
Silencer
Danger of burns. The silencer may not be touched
until it has cooled down after test running.
Compressed air
A jet of air may not be directed towards the body
when using compressed air. Air may otherwise enter
the blood stream which could be fatal.
General instructions
Workshops where the riding mowers are repaired
are to be equipped with safety equipment in
compliance with local regulations.
No person that is not conversant with the contents
of this Workshop Manual is to be allowed to repair
the riding mower.
The boxes illustrated below are included in relevant
parts of this Workshop Manual. The warning boxes
appear at the beginning of the procedures
concerned.
WARNING
Warning box for hazardous items
that can result in personal injury.
CAUTION
This box warns for items that can result in
damage to the riding mower or peripheral
equipment.
This riding mower is type approved with respect to
safety in accordance with current legislation
concerning motorized mowers. The attachment of
other equipment or the use of accessories or spares
that are not approved by Huskvarna can lead to
infringement of the safety requirements, and liability
for the person responsible.
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SAFETY RULES
Blocking up
WARNING
For maintenance or repairs, the
riding mower may never be lifted
more than 50 centimetres from its
level position unless the following
precautions are taken:
1. Empty the fuel tank and run
the engine until the
carburettor is dry.
2. Remove the battery. (See the
part in the maintenance
section dealing with removal
of the battery.)
3. Drain the oil from the
crankcase.
To raise the riding mower, lift using jacks and block
up with suitable stands. Block up in the following
way:
1. Position the riding mower on a level surface.
2. Lift the rear end with a jack placed under the
rear-axle gear.
3. Place two stands under the rear axle at the
inside of each rear wheel.
4. Lift the front end and place two stands under the
front axle beam at the inside of each wheel axle.
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ESAFETY EQUIPMENT
Description
The riding mower is equipped with parts that are
necessary to create maximum safety for the user
and the surroundings.
Safety critical details are as follows:
• Brakes
• Silencer
• Air filter
• Shear pins
• Plastic covers
• Plastic covers and plates
• Needle valve in the carburettor
• Safety switch underneath the operator’s seat
• Safety switch underneath the clutch pedal
• Safety switch for the grass collector
These parts are to be attended to immediately if
damaged or faulty.
Replacement or repair of safety equipment
• Repair and inspection of brakes, see page 86.
• Changing the silencer, see page 57.
• Changing the shear pins, see page 102.
• Changing the safety switch underneath the
operator’s seat, see page 49.
• Changing the safety switch underneath the
clutch pedal, see page 48.
• Changing the safety switch for the grass
collector, see page 50.
• Changing the needle valve in the carburettor,
see engine manufacturer’s manual.
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TECHNICAL DATA
Applies to RB 150, 1996 and 1997 models
• Engine
• Battery
• Front tyres
• Rear tyres
• Transverse axle
• Speed
• Turning radius
• Mowing height
• Size of cutting unit
• Blade engagement
• Discharge
• Air filter
• Fuel filter
• Oil filter
• Cutting unit
• Petrol
• Engine oil
• Weight
• Size of the tractor
15.5 HP Diamond Plus Briggs & Stratton*
12 Volt / 22 Ah
Size: 15 x 6.00 – 6
Tyre pressure: 100 kPa (1 bar)
Size: 18 x 8.50 – 8
Tyre pressure: 70 kPa (0.7 bar)
Dana-Spicer; 6 gears forward and one reverse
Forward: 0–9 km/h
Reverse: 0–4 km/h
0.7 metre
6 mowing heights between 25 mm and 90 mm
Twin cutting blades; 102 cm
Warner electromagnetic clutch
To the rear, with grass collector as standard
Briggs & Stratton air filter for engine: 15.5 HP Diamond Plus Briggs & Stratton
Briggs & Stratton fuel filter for engine: 15.5 HP Diamond Plus Briggs & Stratton
Briggs & Stratton oil filter for engine: 15.5 HP Diamond Plus Briggs & Stratton
Suspended
Use leaded or unleaded quality petrol. Recommended lowest octane number is
95.
SAE 30 or SAE 10W/30 is to be used when topping up or changing the oil.
With cutting unit and grass collector: 256 kg
Without cutting unit and grass collector: 241 kg
(LxWxH) 240 x 106 x 110 cm
NOTE
* Always state the model and type number when purchasing spare parts.
In order to make improvements, the specifications and design are subject to alteration without notice.
Please note that no legal claims whatsoever can be made with the support of information contained in this
manual.
Use only genuine spare parts for repairs. The guarantee becomes null and void if other parts are used.
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ETECHNICAL DATA
Applies to RBH 180
• Engine
• Battery
• Front tyres
• Rear tyres
• Transverse axle
• Speed
• Turning radius
• Mowing height
• Size of cutting unit
• Blade engagement
• Discharge
• Air filter
• Fuel filter
• Oil filter
• Cutting unit
• Petrol
• Engine oil
• Weight
• Size of the tractor
NOTE
* Always state the model and type number when purchasing spare parts.
In order to make improvements, the specifications and design are subject to alteration without notice.
Please note that no legal claims whatsoever can be made with the support of information contained in this
manual.
Use only genuine spare parts for repairs. The guarantee becomes null and void if other parts are used.
18 HP VANGUARD V-TWIN Briggs & Stratton*
12 Volt / 22 Ah
Size: 16 x 6.50 – 8
Tyre pressure: 100 kPa (1 bar)
Size: 20 x 10.00 – 8
Tyre pressure: 70 kPa (0.7 bar)
Hydro-Gear model no. 310-0650
Forward: 0–9 km/h
Reverse: 0–4 km/h
0.7 metre
6 mowing heights between 25 mm and 90 mm
Twin cutting blades; 102 cm
Warner electromagnetic clutch
To the rear, with grass collector as standard
Briggs & Stratton air filter for engine: 18 HP VANGUARD V-TWIN Briggs & Stratton
Briggs & Stratton fuel filter for engine: 18 HP VANGUARD V-TWIN Briggs & Stratton
Briggs & Stratton oil filter for engine: 18 HP VANGUARD V-TWIN Briggs & Stratton
Suspended
Use leaded or unleaded quality petrol. Recommended lowest octane number is 95.
SAE 30 or SAE 10W/30 is to be used when topping up or changing the oil.
With cutting unit and grass collector: 262 kg
Without cutting unit and grass collector: 247 kg
(LxWxH) 240 x 106 x 110 cm
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Relief tool
Tool to relieve pressure of the clutch spring.
5310057-02
Description
The following service tools are required to carry out
certain repairs:
Tensioning tool
Tool to stretch the gear-toothed belt in the cutting
unit.. 5310057-01
SERVICE TOOLS
5310057-01
5310057-02
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Cutting unit
Cutting blades of the
cutting unit do not
rotate.
Is the cutting unit fitted
correctly?
Is the clutch on the
engine shaft intact?
Right cutting blade of
the cutting unit does
not rotate.
Are the shear pins intact?
Is the gear-toothed belt
adjusted correctly?
Is the gear-toothed belt
intact?
TROUBLE SHOOTING
Fit the cutting unit.
Replace the clutch.
No
No
Yes
Replace the shear pins.
Replace the gear-toothed
belt.
Adjust the gear-toothed
belt.
No
No
No
Yes
Yes
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