Dolmar MS-22C User Manual
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String Trimmer
Taille-bordures
Cortabordes
MS-22C
INSTRUCTION MANUAL
MANUEL D'INSTRUCTIONS
C
MANUAL DE INSTRUCCIONES
MS-22C
Important:
Read this instruction manual carefully before putting the String Trimmer into operation and strictly observe the safety regulations.
Preserve instruction manual carefully.
Recommandation importante:
Lire soigneusement ce manuel d’instructions avant de mettre la tail-bordures en service et observer rigoureusement les consignes
de sécurité! Conserver soigneusement ce manuel d’instructions.
Importante:
Leer cuidadosamente este manual de instrucciones antes de poner en marcha la máquina y observar estrictamente las normas de
seguridad.
Conservar este manual de instrucciones con cuidado.
English
Thank you very much for purchasing the DOLMAR String Trimmer. We are
pleased to recommend to you the DOLMAR String Trimmer which is the result
of a long development programme and many years of knowledge and
experience.
Please read this booklet which refers in detail to the various points that will
demonstrate its outstanding performance. This will assist you to obtain the
best possible result from your DOLMAR String Trimmer.
SYMBOLS
You will note the following symbols when reading the instruction manual.
Table of Contents Page
Symbols ...................................................................... 2
Safety instructions ..................................................... 3
Specification ............................................................... 6
Designation of parts ................................................... 7
Assembly of engine and shaft ................................... 8
Mounting of handle ..................................................... 8
Mounting of protector ................................................. 9
Mounting of nylon cutting head ................................. 10
Fuels/Refueling .......................................................... 11
Correct handling of machine ..................................... 12
Putting into operation ................................................ 12
Idle adjustment .......................................................... 13
Nylon cutting head .................................................... 13
Servicing instructions ............................................... 15
Storage ..................................................................... 17
Federal emission component defect warranty ......... 18
Read instruction Manual
Take Particular Care and Attention
Forbidden
Keep distance
Flying object hazard
No smoking
No open flame
Do not use metal blades
Top permissible tool speed
10000 /min
Fuel and oil mixture
Engine-Manual start
Emergency stop
First Aid
Protective gloves must be worn
Keep the area of operation clear of other
persons and pets
Wear eye and ear protection
2
Recycling
ON/START
OFF/STOP
SAFETY INSTRUCTIONS
General Instructions
– To ensure correct operation, user has to read this instruction manual to make
himself familiar with the handling of the string trimmer. Users insufficiently
informed will risk danger to themselves as well as others due to improper
handling.
– It is recommended only to lend the string trimmer to people who have proven
to be experienced with string trimmers.
Always hand over the instruction manual.
– First users should ask the dealer for basic instructions to familiarize oneself
with the handling of an engine powered trimmer.
– Children and young persons aged under 18 years must not be allowed to
operate the string trimmer. Persons over the age of 16 years may however
use the device for the purpose of being trained only whilst under supervi-
sion of a qualified trainer.
– Use string trimmers with the utmost care and attention.
– Operate the string trimmer only if you are in good physical condition.
Perform all work calmly and carefully. The operator has to accept liability for
others.
– Never use the string trimmer after consumption of alcohol or drugs, or if
feeling tired or ill.
Intended use of the machine
– The String Trimmer is only intended for cutter grass, weeds, Bushes,
undergrowth it should not be used for any other purpose such as Edging or
hedge cutting as this may cause injury.
Personal protective equipment
– The clothing worn should be functional and appropriate, i.e. it should be
tight-fitting but not cause hindrance. Do not wear either jewelry or clothing
which could become entangled with bushes or shrubs.
– In order to avoid either head-, eye-, hand-or foot injuries as well as to
protect your hearing the following protective equipment and protective
clothing must be used during operation of the string trimmer.
– Always wear a helmet where there is a risk of falling objects. The protec-
tive helmet (1) is to be checked at regular intervals for damage and is to be
replaced at the latest after 5 years. Use only the approved protective
helmets.
– The visor (2) of the helmet (or alternatively goggles) protects the face from
flying debris and stones. During operation of the string trimmer always
wear goggles, or a visor to prevent eye injuries.
– Wear adequate noise protection equipment to avoid hearing impairment (ear
muffs (3), ear plugs etc.).
– The work overalls (4) protect against flying stones and debris.
We strongly recommend that the user wears work overalls.
– Special gloves (5) made of thick leather are part of the prescribed equipment
and must always be worn during operation of the string trimmer.
– When using the string trimmer, always wear safety shoes (6) with a non-
slip sole. This protects against injuries and ensures a good footing.
Starting up the string trimmer
– Please make sure that there are no children or other people within a working
range of 15 meters (50ft), also pay attention to any animals in the working
vicinity.
– Before use always check that the string trimmer is safe for operation:
Check the security of the nylon cutting head, the control lever for easy
action.
– Rotation of the nylon cutting head during idling speed is not allowed. Check
with your dealer for adjustment if in doubt. Check for clean and dry handles
and test the function of the start/stop switch.
Diagrammatic figure
3
Start the string trimmer only in accordance with the instructions.
Do not use any other methods for starting the engine!
– Use the string trimmer and the tools only for such applications as specified.
– Only start the string trimmer engine, after the entire assembly is done.
Operation of the device is only permitted after all the appropriate accesso-
ries are attached.
– Before starting make sure that the nylon cutting head has no contact with
hard objects such as branches, stones etc. as the cutting tool will revolve
when starting.
– The engine is to be switched off immediately in case of any engine prob-
lems.
– Should the nylon cutting head hit stones or other hard objects, immediately
switch off the engine and inspect the nylon cutting head.
– Inspect the nylon cutting head at short regular intervals for damage (detec-
tion of hairline cracks by means of tapping-noise test).
– Operate the string trimmer only with the shoulder strap attached which is to
be suitably adjusted before putting the string trimmer into operation. It is
essential to adjust the shoulder strap according to the use’s size to prevent
fatigue occurring during use.
– During operation always hold the string trimmer with both hands.
Always ensure a safe footing.
– Operate the string trimmer in such a manner as to avoid inhalation of
exhaust gas. Never run the engine in enclosed rooms (risk of gas poison-
ing). Carbon monoxide is an odorless gas.
– Switch off the engine when resting and when leaving the string trimmer
unattended, and place it in a safe location to prevent danger to others or
damage to the machine.
– Never put the hot string trimmer onto dry grass or onto any combustible
materials.
– The nylon cutting head has to be equipped with it’s appropriate guard.
Never run the trimmer without this guard.
– All protective installations and guards supplied with the machine must be
used during operation.
– Never operate the engine with faulty exhaust muffler.
– Shut off the engine during transport.
– During transport over long distances the tool protection included with the
equipment must always be used.
– Ensure safe position of the string trimmer during car transportation to avoid
fuel leakage.
– When transporting the string trimmer, ensure that the fuel tank is completely
empty.
– When unloading the String Trimmer from the truck, never drop the Engine to
the ground or this may severely damage the fuel tank.
– Except in case of emergency, never drop or cast the String Trimmer to the
ground or this may severely damage the String Trimmer
– Remember to lift the entire equipment from the ground when moving the
equipment. Dragging the fuel tank is highly dangerous and will cause
damage and leakage of fuel, possibly causing fire.
• Resting
• Transport
• Refueling
• Maintenance
• Tool Replacement
Refueling
– Shut off the engine during refuelling, keep away from open flames and do
not smoke.
– Avoid skin contact with mineral oil products. Do not inhale fuel vapor.
Always wear protective gloves during refuelling. Change and clean
protective clothing at regular intervals.
– Take car not to spill either fuel or oil in order to prevent soil contamination
(environmental protection). Clean the string trimmer immediately after fuel
has been spilt.
– Avoid any fuel contact with your clothing. Change your clothing instantly if
fuel has been spilt on it (to prevent clothing catching fire).
– Inspect the fuel cap at regular intervals making sure that it can be securely
fastened and does not leak.
– Carefully tighten the fuel tank cap. Change location to start the engine (at
least 3 meters away from the place of refuelling).
– Never refuel in closed rooms. Fuel vapors accumulate at ground lever (risk
of explosion).
– Only transport and store fuel in approved containers. Make sure the fuel
stored is not accessible to children.
4
3 meters
Method of operation
– Only use the string trimmer in good lighting and visibility. During the winter
season beware of slippery or wet areas, ice and snow (risk of slipping).
Always ensure a safe footing.
– Never cut above the waist height.
– Never stand on a ladder and run the string trimmer.
– Never climb up trees to perform cutting operation with the string trimmer.
– Never work on unstable surfaces.
– Remove sand, stones, nails etc. found within the working range.
Foreign particles may damage the nylon cutting head and can cause
dangerous kick-backs.
– Before commencing cutting, the nylon cutting head must have reached full
working speed.
Cutting Tools
Employ only the correct nylon cutting head for the job in hand.
For cutting thick materials, such as weed, high grass, bushes, shrubs,
underwood, thicket etc. (max. 2 cm dia. thickness). Perform this cutting work
by swinging the string trimmer evenly in half-circles from right to left (similar to
using a scythe).
Maintenance instructions
– The condition of the trimmer also of the shoulder strap must be checked
before commencing work.
– Turn off the engine and remove the spark plug connector when replacing,
and also when cleaning the nylon cutting head.
– Operate the string trimmer with as little noise and contamination as possible.
In particular, check the correct setting of the carburetor.
– Clean the string trimmer at regular intervals and check that all screws and
nuts are well tightened.
– Never service or store the string trimmer in the vicinity of naked flames.
– Always store the string trimmer in locked rooms and with an emptied fuel
tank.
Observe the relevant accident prevention instructions issued by the relevant
trade associations and by the insurance companies.
Do not perform any modifications on the string trimmer as this will endanger
your safety.
The performance of maintenance or repair work by the user is limited to those
activities as described in the instruction manual. All the other work is to be
done by an Authorized Service Agent. Use only genuine spare parts and
accessories released and supplied by DOLMAR.
Use of non-approved accessories and tools means increased risk of
accidents.
DOLMAR will not accept any liability for accidents or damage caused by the
use of non-approved nylon cutting heads and fixing devices of nylon cutting
heads, or accessories.
First Aid
In case of accident, make sure that a first-aid box is available in the vicinity of
the cutting operations. Immediately replace any item taken from the first aid
box.
When asking for help, please give the following information:
– Place of accident
– What happened
– Number of injured persons
– Kind of injuries
– Yo u r n a me
5
SPECIFICATION
Model MS-22C
Dimensions : length x width x height (without nylon cutting head) mm
Mass (without plastic guard and nylon cutting head) kg
Volume (fuel tank) L
Engine displacement cc
Maximum engine performance HP
Engine speed at recommended max, spindle speed /min
Maximum spindle speed (corresponding) /min
Idling speed /min
Clutch engagement speed /min
Carburetor (Diaphragm - carburetor) type
Ignition system type
Spark plug type
Electrode gap mm
Fuel
1735 x 235 x 220 (68-1/4” x 9-1/4” x 8-5/8”)
3.6
0.4
21.0
0.83 /7000 /min
8800
6000
3000
4000
TK TZ9V
Solid state ignition
NGK BPM7A
0.6-0.7(0.024”-0.028”)
Mixed gas (gasoline : two stroke oil = 50 : 1)
Gear ratio
14/19
1) The data is prepared taking equally into account the idling and recing or wide open throttle speed operating modes.
* WARNING: MODEL MS-22C must not be used with a metal blade.
6
DESIGNATION OF PARTS
MS-22C
String Trimmer
⑮
⑩
⑬
⑨
⑤
⑦
③
④
⑳
①
⑫
⑧
⑪
③
ἦἥ
⑳
⑱
②
⑤
⑭
①
⑥
ἦἨ
GB DESIGNATION OF PARTS
1 Fuel Tank
2 Rewind Starter
3 Air Cleaner cover
4 I-O Switch (on/off)
5 Spark Plug
6 Exhaust Muffler
7 Clutch Case
8 Rear Grip
9 Hanger
10 Handle
11 Control Lever
12 Control Cable
13 Shaft
14 Protector
15 Gear Case/Head Case
18 Nylon Cutting Head
20 Fuel Filler Cap
21 Starter Knob
24 Exhaust Pipe
7
ASSEMBLY OF ENGINE AND SHAFT
CAUTION: Before doing any work on the string trimmer, always switch off
the engine and pull the spark plug connector off the spark plug.
Always wear protective gloves.
CAUTION: Start the string trimmer only after having assembled it completely.
– Insert the drive shaft into the holder case (Fig).
Note: Always insert the drive shaft into the Clutch case fully (approx. 58
mm). If the inner shaft resists full insertion of the drive shaft, try to
insert it again after slightly rotating the drive shaft or the support
washer on the gear case to match the inner shaft to the hole inside
the holder case.
– After making sure that the drive shaft is installed fully and properly, tighten
the socket head bolt (M5 x 14) and socket head bolt (M5 x 25) to secure the
drive shaft.
–Inset control cable (1) through adjusting cable (2) and fit nipple of control
cable into swivel (3) of carburetor.
Socket
head bolt
(M5 x 14)
Clutch case
Socket
head bolt
(M5 x 25)
Drive shaft
Connect the switch cords to the two cords from the engine by inserting one
into the other.
– Fix the cord connector by clamp.
MOUNTING OF HANDLE
CAUTION: Before doing any work on the string trimmer, always switch off
the engine and pull the spark plug connector off the spark plug.
Always wear protective gloves.
CAUTION: Start the string trimmer only after having assembled it completely.
For machine with Loop handle
– Do not adjust position of the loop handle too close to the control grip
–The standard position of the handle is 200mm to 250mm from the hanger.
Connectors
to engine
8
MOUNTING OF PROTECTOR
To meet the applicable safety provisions, only the tool/protector combinations
as indicated in the table must be used.
Be sure to use genuine DOLMAR nylon cutting head.
– If the nylon cutting head hits against a stone during operation, stop the
engine and check the nylon cutting head immediately.
Nylon cutting head
Protector for cord cutter
CAUTION: The appropriate protector must always be installed, for your own
–Fix the protector (1) to the clamp (3) with two bolts M6 x 30 (2).
–When using the string head, fit the protector (6) into the protector (1), and
tighten them with two nuts (5) and two screws (4).
safety and in order to comply with accident-prevention regulations.
Operation of the equipment without the guard being in place is not
permitted.
9
MOUNTING OF NYLON CUTTER HEAD
Turn the machine upside down, and you can replace the nylon cutting head.
– Insert the hex wrench through the hole in the gear case and rotate the
receiver washer (3) until it is locked with the hex wrench.
– Loosen the nut (1) (left-hand thread) with the socket wrench and remove
the nut (1), and clamp washer (2).
NOTE:The clamp washer (2), and nut (1) are not necessary for mounting the
nylon cutting head. The nylon head should go on top of the receiver
washer (3).
– Screw the nylon cutting head onto the shaft.
– Make sure that the blade is the left way up.
Tighten
Loosen
Hex wrench
Rotation
10
FUELS/REFUELING
Handling fuel
Utmost care is required when handling fuel. Fuel may contain substances
similar to solvents. Refuel either in a well ventilated room or outdoors. Do not
inhale fuel vapors, avoid any contact of fuel or oil with your skin.
Mineral oil products degrease your skin. If your skin comes in contact with
these substances repeatedly and for an extended period of time, it will
desiccate. Various skin diseases may result. In addition, allergic reactions
may occur. Eyes can be irritated by contact with oil. If oil comes into your
eyes, immediately wash them with clear water. If your eyes are still irritated,
see a doctor immediately.
Fuel and oil mixture
Inspect the fuel tank and fill with clean, fresh fuel of the proper
mixture to assure the longer life of the tool.
Use the following mixed gas.
Gasoline : DOLMAR genuine two-stroke engine oil = 50 : 1 or
Gasoline : Other Maker’s Two-stroke engine oil = 25:1
FOR CALIFORNIA REGULATION:
THIS EQUIPMENT IS CERTIFIED TO OPERATE ON GASOLINE + TWO STROKE OIL
When mixing gasoline with two-stroke engine oil. use only unleaded gasoline
which contains no ethanol, or methanol (type of alcohol).
This will help to avoid possible damage to engine fuel lines and other engine
parts.
Do not mix gasoline and oil directly in the fuel tank.
Observe the Safety Instructions on page 4 !
IMPORTANT: Failure to follow proper fuel mix instructions may cause damage
to the engine.
CAUTION: 1. When preparing fuel mixture, mix only the amount needed for
the job you aref to do.
Do not use fuel mixture that has been stored longer than two
months.
Fuel mixture stored longer than two months will cause hard
starting and poor performance.
If fuel mixture has been stored longer than this time, if should be
removed and filled with a fresh mixture.
2. Never fill the fuel tank to the very top.
3. Never add the fuel to the tank in a closed unventilatede area.
4. Do not add fuel to this unit close to an open fire or sparks.
5. Be sure to wipe off spilled fuel before attempting to start the
engine.
6. Do not attempt to refuel a hot engine.
Check points before operation
1. Check for loose bolts, nuts and fittings.
2. Check the air cleaner for dirt. Clean the air filter of all dirt, etc. before
operation
3. Check to be sure that protector is securely in place.
Refueling
The engine must be switched off.
– Thoroughly clean the area around the fuel filler cap (2), to prevent dirt from
getting into the fuel tank (1).
– Unscrew the fuel filler cap (2) and fill the tank with fuel.
– Tightly screw on the fuel filler cap (2).
– Clean screw fuel filler cap (2) and tank after refueling.
Storage of Fuel
Fuel cannot be stored for an unlimited period of time.
Purchase only the quantity required for a 4 week operating period. Only use
approved fuel storage containers.
11
CORRECT HANDLING OF MACHINE
Attachment of shoulder strap
– Adjust the strap length so that the cutter blade will be kept parallel with the
ground.
Detachment
– In an emergency, push the notches (1) at both sides, and you can detach
the machine from you.
Be extremely careful to maintain control of the machine at this time. Do not
allow the machine to be deflected toward you or anyone in the work
vicinity.
WARNING: Failure to maintain complete control of the machine at all could
result in serious bodily injury or DEATH.
PUTTING INTO OPERATION
(1)
Hanger
Observe the applicable accident prevention regulations.
Starting
Move at least 3m away from the place of refuelling. Place the string trimmer on a clean piece of ground taking care that the nylon cutting
head does not come into contact with the ground or any other objects.
Cold start
For machine with Loop Handle
– Push the I-O switch (1) in the direction shown by the arrow.
– First place the machine on the ground.
– Give a gentle push on the primer pump (1) repeatedly (7-10 times) until fuel
comes into the primer pump.
– Push the choke button (2) to the position " "
(1)
– Firmly hold the clutch case by your left hand, as illustrated.
– Slowly pull the starter grip until resistance is felt and continue with a smart
pull.
– Do not pull out the starter rope to its full extent and do not allow the starter
handle to be retracted without control, but ensure that it is retracted slowly.
– Repeat the starting operation until initial ignitions are heard.
– When the engine starts, please open the throttle lever a little. The choke
button being automatic, it returns to original position " ".
– Run the engine for approximately one minute at a moderate speed before
applying full throttle.
12
(2)
(1)
Note: – If the starter knob is pulled repeatedly when the choke button remains at “ ” position, the engine will not start easily due to
excessive fuel intake.
– In case of excessive fuel intake, remove the spark plug and pull the starter knob slowly to remove excess fuel. Also, dry the
electrode section of the spark plug.
Caution during operation:
If the control lever is opened fully in a no-load operation, the engine rotation is increased to 10,000 rpm or more. Never operate the engine at
a higher speed than required and at an approximate speed of 6,000 - 8,000 / min.
Starting the warm engine
– As described above, except without moving the choke button.
Stopping
– Release the throttle lever (6) fully, and when the engine rpm has lowered,
push the I-O switch (1) to “O” position the engine will now stop.
– Be aware that the cutting head may not stop immediately and allow it to slow
down fully.
IDLE ADJUSTMENT
The nylon cutting head should not run when the control lever is fully released. If necessary, adjust the idle rpm using the idle adjusting
screw.
Checking the Idling speed
– Idle speed should be set to 3,000 / min.
If necessary correct it by means of the idle screw (the nylon cutting head
must not turn when the engine is on idle).
Screwing in the screw (1) will cause an increase in the engine speed,
whereas backing off the screw will reduce the engine speed.
Slow High
(1)
NYLON CUTTING HEAD
The nylon cutting head is a dual string trimmer head capable of bump & feed mechanisms.
The nylon cutting head will automatically feed out the proper length of nylon cord by the changes in centrifugal force caused by increasing
or decreasing RPMS. However, to cut soft grass more efficiently, bump the nylon cutting head against the ground to feed out extra cord as
indicated under operation section.
Most effective cutting area
Operation
– Increase the nylon cutting head speed to approx. 6,000 / min.
Low speed (under 4,800 / min) is not suitable, the nylon cord will not feed
out properly at low speed.
– The most effective cutting area is shown by the shaded area.
13
If the nylon cord does not feed out proceed as follows:
1. Release the control lever to run the engine idle and then squeeze the
control lever fully. Repeat this procedure until the nylon cord feeds out to
the proper length.
2. If the nylon cord is too short to feed out automatically with the above
procedure, bump the knob of the nylon cutting head against the ground to
feed out the nylon cord.
3. If the nylon cord does not feed out with procedure 2, rewind/replace the
nylon cord by following the procedures described under “Replacing the
nylon cord”.
Replacing the nylon cord
– First, stop the engine.
– Press on the housing latches inward to lift off the cover, then remove the
spool.
Idle speed
Full speed
Knob
Cover
Latches
– Hook the center of new nylon cord into the notch in the center of the spool,
with one end of the cord extending about 80mm (3-1/8") more than the other.
Then wind both ends firmly around the spool in the direction of the head
rotation (left-hand direction indicated by LH and right-hand direction by RH
on the side of the spool).
– Wind all but about 100mm (3-15/16") of the cords, leaving the ends tempo-
rarily hooked through a notch on the side of the spool.
Press
Spool
Press
80mm(3-1/8”)
For left hand rotation
Spool
100mm(3-15/16”)
Notches
– Mount the spool in the housing so that the grooves and protrusions on the
spool match up with those in the housing. Keep the side with letters on the
spool visible on the top. Now, unhook the ends of the cord from their
temporary position and feed the cords through the eyelets to come out of the
housing.
14
Eyelets
– Align the protrusion on the underside of the cover with the slots of the
eyelets.
Then push cover firmly onto the housing to secure it.
SERVICING INSTRUCTIONS
Cover
Protrusion
Slot of eyelet
CAUTION: Before doing any work on the string trimmer, always switch off the engine and pull the plug cap off the spark plug (see “check-
To ensure a long service life and to avoid any damage to the equipment, the following servicing operations should be performed at regular
intervals.
ing the spark plug”).
Always wear protective gloves!
Daily checkup and maintenance
– Before operation, check the machine for loose screws or missing parts. Pay particular attention to the tightness of the nylon cutting head.
– Before operation, always check for clogging of the cooling air passage and the cylinder fins.
Clean them if necessary.
– Perform the following work daily after use:
• Clean the string trimmer externally and inspect for damage.
• Clean the air filter. When working under extremely dusty conditions, clean the filter the several times a day.
• Check the nylon cutting head for damage and make sure it is firmly mounted.
• Check that there is sufficient difference between idling and engagement speed to ensure that the nylon cutting head is at a standstill
while the engine is idling (if necessary, reduce idling speed).
If under idling conditions the tool should still continue to run, consult your nearest Authorized Service Agent.
– Check the functioning of the I-O switch, the lock-off lever, the control lever, and the look button.
Cleaning of air cleaner
Clogging of the element (1) may sometimes make it difficult or impossible to
start up the engine or increase the engine speed.
After the end of operation, be sure to clean the air cleaner as mentioned
below.
– Remove the air cleaner cover screw.
– Place the finger under the air cleaner cover, push down the cover lower
part, and detach the air cleaner cover.
– Take out the element (1), clean it with lukewarm water mixed with neutral
detergent, and dry it completely.
– After cleaning, attach the element.
– Insert the claw at the case upper part into the hole at the upper part of the
air cleaner cover. Then, attach the air cleaner cover by pushing it, and
tighten the screw (2).
(1)
(2)
NOTE:If there is excessive dust or dirt adhering to the air cleaner, clean it
every day. A clogged air cleaner may make it difficult or impossible to
start the engine or increase the engine rotational speed.
15
Checking the spark plug
– Only use the supplied universal wrench to remove or to install the spark
plug.
– The gap between the two electrodes of the spark plug should be 0.6 - 0.7
mm (0.024" - 0.028"). If the gap is too wide or too narrow, adjust it. If the
spark plug is clogged with carbon or fouled, clean it thoroughly or replace it.
CAUTION: Never touch the spark plug connector while the engine is running
(danger of high voltage electric shock).
Supply of grease to gear case
– Supply grease (Shell Alvania 3 or equivalent) to the gear case through the
grease hole every 30 hours. (Genuine DOLMAR grease may be purchased
from your DOLMAR dealer.)
Suction head in the fuel tank
– The felt filler (1) of the suction head is used to filler the fuel required by the
carburetor.
– A periodical visual inspection of the felt filter is to be conducted. For that
purpose open the tank cap, use a wire hook and pull out the suction head
through the tank opening. Filters found to have hardened, been polluted or
clogged up are to be replaced.
– Insufficient fuel supply can result in the admissible maximum speed being
exceeded. It is therefore important to replace the felt filter at least quarterly
to ensure satisfactory fuel supply to the carburetor.
0.6mm-0.7mm
(0.024”-0.028”)
Gear case
Grease hole
(1)
Cleaning of muffler exhaust port
– Check of muffler exhaust port (2) regularly.
– If it is clogged by carbon deposits, carefully scratch the deposits out with a
suitable tool.
(2)
Any maintenance of adjustment work that is not included and described in this manual is only to be performed by Authorized Service Agents.
16
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