909 DYM-1773 Instruction Manual - User Manual

Download PDF User Manual

Full Text Searchable PDF User Manual

INSTRUCTION MANUAL

DYM-1773

135CC

PETROL

LAWN MOWER

CONTENTS

Warranty Power Tools

For full details please visit us at www.909.com

Warranty

Introduction

Environmental protection

Description of symbols

Specifications

Safety rules for petrol lawn mowers

Operation safety instructions

Unpacking

Contents of carton

Know your product

Operating Instructions

Operating Procedures

Best results when mowing

Grass Catcher

Mower Deck

Height Adjustment

Maintenance and Cleaning

Cutting Blade

Blade Mounting Torque

Engine

Corrective Action

Description of symbols

The rating plate on your tool may show symbols.

These represent important information about the

product or instructions on its use.

Wear hearing protection.

Wear eye protection.

Wear breathing protection.

Wear safety gloves.

Wear safety footwear.

Read these instructions for use carefully.

Warning.

Explosive material.

Use at a distance of at least 15m from

other people.

Extremely hot surface. Do not touch a hot muffler,

gear box or cylinder. You may get burned. These

parts get extremely hot from operation and remain

hot a short time after the unit is turned off.

Thrown objects and rotating blades

can cause severe injury.

CAUTION.

Before carrying out any operation stop

the engine and disconnect the spark plug cap.

CAUTION.

Risk of hand and feet injuries.

Conforms to relevant standards

for electromagnetic compatibility

Noise label rating 96dBA

(taken at 7.5 metres) you must wear

ear protection at all times.

Introduction

Your new 909 power tool will more than satisfy

your expectations. It has been manufactured under

stringent 909 Quality Standards to meet superior

performance criteria.
You will find your new tool easy and safe to operate,

and, with proper care, it will give you many years

of dependable service.

CAUTION.

Carefully read through this entire Instruction

Manual before using your new 909 Power Tool. Take

special care to heed the Cautions and Warnings.
Your 909 power tool has many features that will make

your job faster and easier. Safety, performance, and

dependability have been given top priority in the

development of this tool, making it easy to maintain

and operate.

Environmental protection

Recycle unwanted materials instead

of disposing of them as waste. All tools,

hoses and packaging should be sorted,

taken to the local recycling centre and

disposed of in an environmentally safe way.

NOISE dB A

Specifications

Engine: FOUR STROKE

Engine Capacity: 135cc

Stroke: 40mm

Speed: 2800min-1

Fuel Type: Unleaded petrol

Oil Type: 4 Stroke Motor Oil 10-30W

Fuel Tank Capacity: 0.77L

Oil Tank Capacity: 0.55L

Width of Cut: 410mm

Blades: Single bar blade

Height Adjustment: Single lever, 7 Levels

30mm - 75mm

Wheel Size: 150mm (Front)

180mm (Rear)

Spark Plug Type: BPR4ES

Weight (GW): 25.4kg

Noise label rating 96dBA (taken at 7.5 metres).

Safety rules for petrol lawn mowers

Training

•

Read the instructions carefully. Get familiar with the

controls and proper use of the equipment.

•

Only use the lawn mower for the purpose for which it was

designed, i.e. for cutting and collecting grass. Any other

use can be hazardous, causing damage to the machine.

•

Never allow children or people unfamiliar with these

instructions to use the lawn mower. Local regulations may

restrict the age of the operator.

•

Never use the lawn mower:

– When people, especially children, or pets are nearby.
– If the operator has taken medicine or substances that

can affect his ability to react and concentrate.

•

Remember that the operator or user is responsible

for accidents or hazards occurring to other people

or their property.

Preparation

•

While mowing, always wear sturdy footwear and long

trousers. Do not operate the equipment when barefoot

or wearing open sandals.

•

Thoroughly inspect the area where the equipment is to be

used and remove all objects which may be thrown by the

machine or damage the cutter assembly and the engine

(stones, sticks, metal wire, bones, etc.)

•

WARNING: DANGER!

Engine fuel is highly flammable:

– Store fuel in containers specifically designed for this purpose.
– Refuel using a funnel and outdoors only. Do not smoke

while refuelling or whenever handling the fuel.

– Add fuel before starting the engine. Never remove

the cap of the fuel tank or add fuel while the engine is

running or when the engine is hot.

– If fuel is spilled, do not attempt to start the engine but

move the machine away from the area of spillage and

avoid creating any source of ignition until the fuel has

evaporated and the vapour dispersed.

– Replace all fuel tanks and containers caps securely.

•

Substitute faulty silencers.

•

Before use, always inspect the machine, especially the

condition of the blades, and check that the screws and

cutting assembly are not worn or damaged. Replace worn or

damaged blades and screws in sets to preserve balance.

•

Discharge openings must be guarded at all times. Do not

remove the discharge guard or hold it up while mowing.

•

It is advisable to wear suitable eye protection when

operating the mower.

Operation

•

Do not operate the engine in a confined space where

dangerous carbon monoxide fumes can collect.

•

Mow only in daylight or good artificial light.

•

If possible, avoid operating the equipment in wet grass.

•

Always be sure of your footing on slopes.

•

Walk, never run and do not allow yourself to be pulled

along by the lawn mower.

•

Mow across the face of slopes, never up and down.

•

Exercise extreme caution when changing direction on slopes.

•

Do not mow on slopes of more than 20°.

•

Exercise extreme caution when pulling the lawn-mower

towards you.

•

Stop the blade if the lawn mower has to be tilted for

transportation when crossing surfaces other than grass,

and when transporting the lawn mower to and from the

area to be mowed.

•

Never operate the lawn mower with defective guards,

or without safety devices, such as the stoneguard and/or

grass-catcher, in place. Replace if damaged.

•

Do not change the engine governor settings or over

speed the engine.

•

On power-driven models, disengage the drive clutch

before starting the engine.

•

Start the engine carefully, following the instructions and

keeping feet well away from the blade.

•

Do not tilt the lawn mower when starting the engine.

Start the engine on a flat surface that is free of obstacles

and tall grass.

•

Do not put hands or feet near or under rotating parts.

Keep clear of the discharge opening at all times.

•

Never pick up or carry a lawn mower while the engine

is running.

•

Stop the engine and disconnect the spark plug wire:

– Before carrying out any work underneath the cutting deck

or before unclogging the chute;

– Before checking, cleaning or working on lawn mower;
– After striking a foreign object. Inspect the lawn mower for

damage and make repairs before restarting and operating

the lawn mower;

– If the lawn mower starts to vibrate abnormally (find and

remove the cause of the vibration immediately).

•

Stop the engine:

– Whenever you leave the lawn mower unattended.

Remove the key from models with electric starters.

– Before refuelling.
– Every time you remove or replace the grass-catcher.

•

Reduce the throttle before turning off the engine and turn

the fuel off when you have finished mowing, following the

instructions in the engine handbook.

•

When mowing, always keep to a safe distance from the

rotating blade. This distance is the length of the handle.

•

Never cut grass while walking backwards.

•

Stop the engine before pushing mower across gravel

drives, walks or roads.

•

This machine is to be used exclusively for cutting natural

grass. Never use the mower for other purposes. Any

other utilization can involve danger for your safety and

can involve damage to the mower.

•

The user is responsible for the safety of other people,

animals and objects in the working area. Keep children

and domestic animals at a safe distance while the mower

is in use.

Maintenance and storage

•

Keep all nuts, bolts and screws tight to be sure the

equipment is in safe working condition. Regular

maintenance is essential for safety and performance.

•

Never store the equipment with fuel in the tank inside a

building where vapour may reach a flame or a spark or a

source of extreme heat.

•

Allow the engine to cool before storing in an

enclosed space.

•

To reduce the fire hazard, keep the engine, exhaust

silencer, battery compartment and fuel storage area

free of grass, leaves, or excessive grease. Do not leave

containers with grass cuttings in rooms.

•

Check the stone-guard and grass-catcher frequently for

wear and deterioration and replace if damaged.

•

If the fuel tank has to be drained, this should be done

outdoors and when the engine is cool.

•

Wear strong work gloves when removing and

reassembling the blade.

•

Check the blade’s balance after sharpening.

•

For reasons of safety, do not use the equipment with

worn or damaged parts. Parts are to be replaced and

not repaired. Parts that are not of the same quality can

damage the equipment and be dangerous for your safety.

•

Whenever the machine is to be handled, transported or

tilted you must:

– wear strong working gloves;
– grasp the machine at the points that offer a safe grip,

taking account of the weight and its distribution.

•

Damaged blades and worn bolts are major hazards.

•

Fuel goes off in about 3 - 4 months. If you find your

mower does not start, try changing the fuel in the

tank with newly purchased fuel.

Operation safety instructions

WARNING: Stop the engine and unplug the spark plug

before any repairs or maintenance operations.

•

Check that all nuts, bolts and screws are well tightened

before every use.

•

Before mowing ensure that the blade and the blade fixing

screw are securely fastened. When the blade edges

require re-sharpening, this must be done evenly on both

sides to prevent any imbalance. If the blade is damaged,

it must be replaced.

•

When mowing always wear long trousers and strong,

covered footwear.

•

Do not run the engine in an enclosed and/or poorly

ventilated area. The gas of the engine contains carbon

monoxide, which is dangerous to your health.

•

Work only when there is sufficient light.

•

Do not use the lawn mower when it is raining or when

the grass is wet.

•

Caution must be taken while mowing on slopes. Mow

across the face of slopes, never down or up.

•

Turn off the engine if you must leave the lawn

mower unattended.

•

Never lift the rear of the mower while starting the

engine and never place your hands and feet underneath

the deck while the engine is running.

•

If working on high grass, adjust the mowing height to

reduce the friction and prevent over loading. The optimal

mowing height should be 1/3 the height of the grass.

It would affect the work efficiency of lawn mower if too

higher or lower.

•

Never change the rated speed of the engine in any way .

•

Never lift or carry the mower while the engine is running.

•

Stop the engine and remove the spark plug cover in

these cases:

- Before any operation under the deck.
- Before any maintenance, repairing or checking operations.

- Before carrying, lifting or removing the mower.
- If you leave the mower unattended or change the

cutting height.

- After hitting a foreign object, stop the engine and check

thoroughly the mower in order to see if it is damaged.

Take the mower to an authorized service centre to carry

out any repairs if necessary.

- If the mower vibrates in an abnormal way, take the

mower to an authorized service centre.

- Check the bolts and nuts regularly. Bolts and nuts may

vibrate loose over time.

WARNING: Fuel is highly flammable.

•

Keep fuel in a jerry can specially made for this purpose.

•

Fill the fuel tank with a funnel and outside. Do not smoke

or use a mobile phone during this process.

•

Fill with fuel and oil before starting the engine. Never

open the cap of the fuel tank to add gasoline while the

engine is running or still hot.

•

Do not start the engine if there is spilt fuel on the mower

or in the area surrounding. Take the mower away from

the zone where fuel has been split and avoid any

contact from a hot source as long as the split gasoline is

completely evaporated.

•

Tighten the fuel tank cap and jerry can cap tightly.

Unpacking

Due to modern mass production techniques, it is unlikely

that your 909 Power Tool is faulty or that a part is missing.

If you find anything wrong, do not operate the tool until the

parts have been replaced or the fault has been rectified.

Failure to do so could result in serious personal injury.

Contents of carton

•

Handle bar locking knobs, (including 2 bolts)

•

Spark Plug Wrench

•

50L Soft Grass Catcher

Know your product

1. Brake control handle
2. Throttle choke lever
3. Rope guide
4. Grass sack
5. Height adjusting lever
6. Fuel cap

7. Deck
8. Starter handle
9. Locking lever
10. Oil cap
11. Spark plug

6. Operating instructions
6.1 Before starting

Service the engine with gasoline and oil as instructed

in the separate engine manual packed in your mower.

Read instructions carefully.

WARNING: Petrol is highly flammable.

Store fuel in containers specifically designed for this

purpose.
Refuel outdoors only, before starting the engine and do

not smoke while refueling or handling fuel.
Never remove the cap of the fuel tank or add petrol

while the engine is running or when the engine is hot.
If petrol is spilled, do not attempt to start the engine but

move the machine away from the area of spillage and

avoid creating any source of ignition until petrol vapors

have dissipated.
Replace all fuel tanks and container caps securely.
Before tipping the lawn mower to maintain the blade or

drain oil, remove fuel from tank.

WARNING: Never fill fuel tank indoors, with engine

running or until the engine has been allowed to cool

for at least 15 minutes after running.

6.2 To start engine and engage blade

1. The unit is equipped with a rubber boot over the end of

the spark plug, make certain the metal loop on the end

of the spark plug wire (inside the rubber boot) is fastened

securely over the metal tip on the spark plug.

2. Before starting engine, please turn the fuel cock to the

“

” position. (Fig.9D)

3. When starting cool engine, turn throttle choke lever to

“

”position. (Fig.9A)

When starting warm engine and operating, turn throttle

choke lever to “

“ position. (Fig.9B)

4. Standing behind the unit, grasp the brake control handle

and hold it against the upper handle as shown in fig. 9C.

5. Grasp the starter handle as shown Fig. 9C and pull up

rapidly. Return it slowly to the rope guide bolt after engine

starts.
Release the brake control handle to stop the engine and

blade.
Start the engine carefully according to instructions and

with feet well away from the blade.
Do not tilt the lawn mower when starting the engine.

Start the mower on a level surface, free of high grass or

obstacles.
Keep hands and feet away from the rotating parts. Do not

start the engine when standing in front of the discharge

opening.

Fig. 9A

Fig. 9C

Fig. 9B

Fig. 9D

6.3 Operation procedures

During operation, tightly hold the brake handle with both

hands.

Note:

During operation, when the brake handle is released,

the engine will stop and thus stopping the lawnmower from

operating.

6.4 To stop engine

CAUTION:

The blade continues to rotate for a few seconds

after the engine is shut off.
1. Release the brake control handle to stop the engine and

blade.

2. Disconnect and ground the spark plug wire as instructed

in the separate engine manual to prevent accidental

starting while equipment is unattended.

6.5 For the best results when mowing

Clear lawn of debris. Be sure that the lawn is clear of

stones, sticks, wire or other foreign objects which could be

accidentally thrown out by the mower in any direction and

cause serious personal injury to the operator and others

as well as damage to property and surrounding objects.

Do not cut wet grass. For effective mowing do not cut wet

grass because it tends to stick to the underside of the deck

preventing proper mowing of the grass clippings. Cut no

more than 1/3 the length of the grass. The recommended

cut for mowing is 1/3 the length of the grass. Ground speed

will need to be adjusted so the clippings can be dispersed

evenly into the lawn. For especially heavy cutting in thick

grass it may be necessary to use one of the slowest speeds

in order to get a clean well mowed cut. When mowing long

grass you may have to cut the lawn in two passes, lowering

the blade another 1/3 of the length for the second cut and

perhaps cutting in a different pattern than was used the first

time. Overlapping the cut a little on each pass will also help

to clean up any stray clippings left on the lawn. The mower

should always be operated at full throttle to get the best cut

and allow it to do the most effective job of mowing.
Clean underside of deck. Be certain to clean the underside

of the cutting deck after each use to avoid a build-up of

grass, which would prevent proper mulching. Mowing

leaves. The mowing of leaves can also be beneficial to your

lawn. When mowing leaves make sure they are dry and

are not laying too thick on the lawn. Do not wait for all the

leaves to be off the trees before you mow.

WARNING:

if you strike a foreign object, stop the engine.

Remove wire from spark plug, thoroughly inspect the mower

for any damage and repair the damage before restarting

and operating the mower. Extensive vibration of the mower

during operation is an indication of damage. The unit should

be promptly inspected and repaired.

6.6 Grass catcher

There is a window on the

rear cover. You can see the

condition of grass catcher

through the window. If the

catcher is full of grass; you

will empty and clean the

bag, make sure it is clean

and ensure its meshwork is

ventilated. (Fig. 10)

6.7 Deck

The underside of the mower deck should be cleaned after

each use to prevent a buildup of grass clippings, leaves, dirt

or other matter. If this debris is allowed to accumulate, it will

invite rust and corrosion, and may prevent proper mulching.

The deck may be cleaned by tilting the mower and scraping

clean with a suitable tool (make certain the spark plug wire

is disconnected).

Fig. 10

6.8 Height adjustment instructions

CAUTION:

Do not at any time

make any adjustment

to lawnmower without first

stopping the engine and

disconnecting the spark plug

wire.

CAUTION:

before changing

mowing height, stop mower

and disconnect spark plug

cable.
Your mower is equipped with

a central height adjustment lever offering 7 height positions.
1. Stop mower and disconnect spark plug cable before

changing mower cutting height.

2. The central height adjustment lever offers you 7 different

height positions.

3. To change the height of cut, squeeze adjuster lever

toward the wheel, moving up or down to selected height.

(Fig.11) All wheels will be in the same height of cut.

7. Maintenance instructions

Spark plug

Use only original replacement spark plug. For best results,

replace the spark plug every 100 hours of use.

8. Lubrication instrucions

CAUTION: Disconnect spark plug before servicing.

1. Wheels-Lubricate the ball bearings in each wheel at least

once a season with a light oil.

2. Engine-Follow engine manual for lubrication instructions.

9. Cleaning

CAUTION:

Do not hose engine. Water can damage engine

or contaminate the fuel system.
1. Wipe deck with dry cloth.
2. Hose under deck by tilting the mower so that the spark

plug is up.

9.1 Engine air cleaner

CAUTION:

Do not allow dirt or dust to clog the air filter foam

element. The engine air cleaner element must be serviced

(cleaned) after 25 hours normal mowing. The foam element

must be serviced regularly ifthe mower is used in dry dusty

conditions.

To clean air filter

1. Press down the two tabs on top of the filter cover.
2. Remove cover.
3. Wash filter element in soap

water.

DO NOT USE GASOLINE!

4. Air dry filter element.
5. Place a few drops of SAE30

oil on the foam filter and

squeeze tightly to remove

any excess oil.

6. Reinstall filter.

NOTE:

Replace filter if frayed,

torn, damaged or unable to be cleaned.

Fig. 11

Fig. 12

Filter cover

9.2 Cutting blade

CAUTION:

Be sure to disconnect and ground the spark

plug wire before working on the cutting blade to prevent

accidental engine starting. Protect hands by using heavy

gloves or a rag to grasp the cutting blades .lip mower as

specified in separate engine manual. Remove the hex bolt

and washer which hold the blade and blade adapter to the

engine crankshaft. Remove the blade and adapter from the

crankshaft.

WARNING:

Periodically inspect the blade adapter for

cracks, especially if you strike a foreign object. Replace

when necessary. For best results your blade should be

sharp. The blade may be resharpened by removing it and

either grinding or filing the cutting edge keeping as close to

the original bevel as possible. It is extremely important that

each cutting edge receives an equal amount of grinding to

prevent an unbalanced blade. Improper blade balance will

result in excessive vibration causing eventual damage to

the engine and mower. Be sure to carefully balance blade

after sharpening. The blade can be tested for balance by

balancing it on a round shaft. saewdriver. Remove metal

from the heavy side until it balances evenly.
Before reassembling the blade and the blade adapter to the

unit, lubricate the engine crankshaft and the inner surface of

the blade adapter with light oil. Install the blade adapter on

the crankshaft. Refer to figure 13. Place the blade with the

part number facing away from the adapter.
Align the washer over the blade and insert the hex bolt.

lighten the hex bolt to the torque listed below:

9.3 Blade mounting torque

Center Bolt 40Nm-50Nm. to insure safe operation of your

unit. ALL nuts and bolts must be checked periodically for

correct tightness.
After prolonged use, especially in sandy soil conditions,

the blade will become worn and lose some of the original

shape. Cutting efficiently will be reduced and the blade

should be replaced. Replaca with an approved factory

replacement blade only. Possible damage resuffing from

blade unbalance condition is not the responsibility of the

manufacturer.
When you change the blade, Must use the original type

marked on the blade (26300100401 for DYM1773); (for

order the blade, pis. contact your local dealer or call our

company)

9.4 Engine

Refer to the separate engine manual for engine

maintenance instructions. Maintain engine oil as instructed

in the separate engine manual packed with your unit. Read

and follow instructions carefully.
Service air cleaner as per separate engine manual under

normal conditions.
Clean every few hours under extremely dusty conditions.

Poor engine performance and flooding usually indicates that

the air cleaner should be serviced.
To service the air cleaner, refer to the separate engine

manual packed with your unit.
The spark. plug should be cleaned and the gap reset once

a season. Spark plug replacement is recommended at the

start of each mowing season; check engine manual for

correct plug type and gap specifications.
Clean the engine regularly with a cloth or brush. Keep the

cooling system (blower housing area) clean to permit proper

air circulation which is essential to engine performance and

life. Be certain to remove all grass, dirt and combustible

debris from muffler area.

Flat Key
Blade Adapter

Blade

Washer
Hex Bolt

Ask a Question ?