Cub Cadet CC924 User manual

OPERATOR’S MANUAL
WARNING
READ AND FOLLOW ALL SAFETY RULES AND INSTRUCTIONS IN THIS MANUAL
Safe Operation Practices Set-Up Operation Maintenance Service Troubleshooting
BEFORE ATTEMPTING TO OPERATE THIS MACHINE.
FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
·
FORM NO. 769-11081 02
01/25/2018
· · · ·
Brushcutter CC924/CC927D/CC927U

2
Safety Instructions..........................................3
Visit us on the web at www.mtdproducts.com
Contact MTD AU • P.O. Box 376 Dandenong.Vic.3175
Email Address: [email protected] Customer Service Phone:[phone]
Symbols...........................................................5
Get to know yur brush cutter.........................7
Assembly Instructions....................................9
Fuel and Oil Instructions..............................11
OperatingInstructions.................................12
Maintenace and repair.................................14
Cleaningand Storage..................................17
Tro
Contents ....................................................... 20
ubleshooting...........................................18
19
Before setting up and operating your new equipment,
please locate the model plate on the equipment and record
the information in the provided area to the right. You can
locate the model plate on the engine of the brushcutter
This information will be necessary, should you seek technical
support via our web site, Customer Support Department,
or with a local authorized service dealer.

18. The rotary spool head and/or the cutting blade may keep running for a short time just after
your shutting it down. Always be aware of the rotating parts; they are dangerous. If the
cutting attachments cannot stop at idling, you should adjust the carburetor.
19. Never use parts, accessories or attachments which are not authorized for this unit. Otherwise,
the user may be seriously injured and/or the unit damaged and the warranty may be deemed
null and void.
20. If situations occur which are not covered in this manual, please contact MTD customer service
department or your nearest local dealer.
4

Indicates danger,warning or a reason to be cautious.Can be used together with
other symbols or pictograms.
SAFETY AND WARNING SYMBOL
Non-compliance with the operating instructions and precautions may result in
serious injuries.Read the operating manual before starting or operating the unit.
READ OPERATING MANUAL
CAUTION: Ejected objects may cause serious eye injuries and excess noise may
cause loss of hearing.When operating the unit,wear eye and ear protection.
WEAR EYE AND EAR PROTECTION
CAUTION: All bystanders,especially children and pets,must be kept at
least 15m from the working area.
KEEP BYSTANDERS AWAY
Always use clean and fresh lead-free petrol for mixing petrol.
PETROL
Use only authorised oil according to the operating manual for mixing petrol.
OIL
Keep hands and feet away from rotating parts.
CAUTION: Do not use the unit if the protective housing has not been correctly
positioned for cutting.Keep away from the rotating line coil.
EJECTED OBJECTS AND ROTATING PARTS MAY CAUSE SERIOUS INJURIES
SYMBOLS
5

RUN
OFF/STOP
IGNITION SWITCH
BEWARE OF HOT SURFACES
CAUTION
SHARP BLADE
MAXIMUM RPM
9000
IGNITION SWITCH
GLOVES
Please wear sturdy gloves.
SHOES
Please wear afety shoes.

Gear Case
Cutting Attachment Shield
Shaft Tube
Clamping Bracker For
Cutting Attachment Shield
D-Handle
Air Filter Cover
Fuel Tank
Ignition Switch
Throttle Trigger
Throttle Lockout
Spark Plug Cap
Throttle Cable
Trimmer Head
GET TO KNOW YOUR BRUSHCUTTER
7
Muffler Cover
Brushcutter with “D” Handle
Harness Bracket

Gear Case
Cutting Attachment Shield
Shaft Tube
Clamping Bracket For
Cutting Attachment Shield
U-Handle
Air Filter Cover
Fuel Tank
Ignition Switch
Throttle Trigger
Throttle Lockout
Throttle Cable
Harness Bracket
Spark Plug Cap
Throttle Cable Collector
Trimmer Head
8
Muffler Cover
Clamping Bracket For U-Handle
Brushcutter with “Bull” Handle
GET TO KNOW YOUR BRUSHCUTTER

INSTALL AND ADJUST HANDLE
.
ASSEMBLY INSTRUCTIONS
9
INSTALL THE CUTOFF KNIFE
1. Align the knife hole with the hole on shield,
then tighten them up with screws.
Cutoff Knife Cutting Attachment
Shield
Screw
Align the two holes on the cutting attachment
shield with the other two holes in the clamping
bracket, then tighten them up with screws.
INSTALL THE CUTTING ATTACHMENT SHIELD
Cutting
Attachment
Shield
Screw
Clamping
Bracket
1. Push the handle down onto the tube,and
set the lower handle into the right place,
so that the parts matched right.
2. Insert the bolt into the bolt hole and push
it through.and put the nut into the nut hole
on the lower handle back.tighten the bolt,
but do not tighten the bolt completely.
3. While holding the unit in the operation,
move the handle to the location that
provides the best grip. Place it a minimum
of 6 inches(152mm) from the end of the grip.
make sure the handle base between arrows.
4. Tighten the bolt until the handle is secure.
D-Handle
Lower Handle
152mm
2. You can adjust the operating angles of the
handle by loosening the handle locking knob.
1. Put the “Bull” Handle between the top and
middle clamps, and then connect the top,
middle and bottom clamps by tightening
the handle locking knob.
U-Handle
Middle Clamp
Bottom Clamp
Locking Knob
Washer
Top Clamp
“D” Handle
“Bull” Handle

10
3. Install the blade holder and blade holder
cover one by one.
4. Finally, install the locking nut and tighten
it by the hex wrench.
INSTALL THE CUTTING BLADE(if attached)
1. Align the shaft bushing hole with the locking
rod slot in the protective cover and the notch
in the gear case, and then insert the locking
rod into these three holes/slots. Holding the
locking rod to ensure the output shaft in
place.
2. Install the blade to the output shaft and
make sure it contacts closely with the shaft
busing.
Blade Holder Cover
Shaft Bushing
Locking Nut
Blade Holder
Blade Holder Cover
Wrench Clockwise
Locking Rod
Gear case
INSTALL THE TRIMMER HEAD
1. Align the shaft bushing hole with the locking
rod slot in the protective cover and the
notch in the gear case, and then insert the
locking rod into these three holes/slots.
Holding the locking rod to ensure the output
shaft in place.
2. Ensure the threads of the trimmer head and
the center of the output shaft are in line
with each other, and then rotate the trimmer
head clockwise (observed by operator) until
it is securely tightened.
Output Shaft
Protective Cover
Locking Rod
Gear case
Clockwise

OIL
Fuel
Mixing Ratio
Warnings
1. Only use high quality special oil for air cooled 2-stroke engine,JASO FC or FD, or ISO-L-EGC or EGD
oil. Neveruse water cooled engine oil or any oil for 4-stroke engine.
1. Always use fresh, clean lead-free fuel. Minimum octane number: 90.
1. Recommended mixing ratio of fuel and oil is 50:1.
the fuel tank with the mixture.
2. Do not mix the fuel and oil directly in the fuel tank; always use the mixing tank to do this job.
immediately.
4. Move the unit 5 meters away from the fueling source and site before starting the engine.
5. Neveruse fuel which has been storedfor longer than 30 days. That may bring damage to the
unit, especially for the carburetor or the engine.
FUEL AND OIL INSTRUCTIONS
FUEL AND OIL INSTRUCTIONS
11

STARTING COLD ENGINE
WARNING : Before starting the
engine, keep the cutting attachment
clear of everything around it.
1. Use the mixing tank to mix the fuel and oil.
Fill fuel tank with the mixture. See “Fuel and
Oil Instructions”.
2. Push the ignition switch to the “Run” positon.
3 . Press throttle lockout and throttle trigger and
then release them one by one.
Note : Unit is properly warmed up when engine
accelerates without hesitation.
8. Repeat several times until the engine starts.
9. Move choke lever to “HALF OPEN” position.
Allow the engine to run for 2
-3
minutes to
temperatures.
Once the engine is warmed up, place the choke
lever to the “Full Open” position.
7. While holding the starter handle in right
hand. Gently pull the starter rope out until
you feel that the pawls hook onto the
4. Fully press and release the primmer bulb for
10 times. Some amount of fuel should be
visible in the primer bulb and fuel lines.
5. Move choke lever to the “CLOSE” position.
6. Hold the unit with your left hand and press
it against the ground.
OPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS
12
Bulb
Primmer
Stop Ignition Switch Throttle
“D”HANDLE
“BULL”HANDLE
Lockout
Throttle Trigger
Run
Stop
Ignition Switch
Throttle Lockout
Throttle Trigger
Run

STARTING WARM ENGINE
1. Push the ignition switch to the “Run”
position
2. Move the choke lever to the“HALF OPEN”
position.
3. Hold the unit in left hand and press it against
the ground.
4. While holding the starter handle in right
hand. Gently pull the starter rope out until
you feel that the pawls hook onto the
5. Repeat several times until the engine starts.
6. Move the choke level to the“Full Open”
position.
the idling engine to cool down.
2. Move the ignition switch to the “Stop”
WARNING : Move the choke lever
to the “CLOSE” position if the engine
can not be shut down by the two
after the machine becomes cold or
contact the authorized dealer for help.
SHOULDER HARNESS
1. Wear the harness on the shoulder then
your stature until you feel comfortable with
it on.
2. Attach harness hook to the suspension
loop on the shaft. Make sure the unit
gets a good balance before operating.
WARNING :
mechanism on the harness to free
of emergency.
1. The trimmer head releases the line without
tap the trimmer head on the ground while
operating the unit at high speed
2. The cutting line should always have the max.
which automatically removes any excess
line that is released.
Choke
Lever
Close
Full open
13
Quick-release mechanism

FUEL FILTER
AIR FILTER
1. Empty the fuel tank.
fuel tank.
Disassemble the filter cover, and pull the filter
from the air filter housing
2. Check the filter for deterioration,replace it if
necessary
3. Wash the filter with kerosene,put it in the engine
oil and squeeze it by one hand.
4. Replace it in the case,and assemble the air cleaner
cover.
Fuel Filter
MAINTENANCE AND REPAIR
MAINTENANCE AND REPAIR
CARBURETOR
Filter Cover
Filter
2. Adjustingthe idle-speedscrewclockwise
will increase the idlingspeedandadjusting
it counterclockwise will decrease the idling
speed. You shoulduse a tachometerto
measure the speedwhile adjusting. Make
sure the idlingspeedwithin the
recommendedrange 2700~3300 rpm.
3. Every unit hadbeen run andtestedat the
factory toensure that the carburetor works
at its best condition. But aftera period of
use,if trimmerheador cuttingblade
continues torotate at idlingor the engine
stops when you fully release the throttle
trigger, make adjustment toidle-speedscrew.

15
SPARK PLUG
After every 50 operating hours take out the
spark plug and check its condition.
down.
the spark plug.
4. Unscrew spark plug in counterclockwise
direction with the attached spark plug
wrench.
6. Check and adjust spark plug gap to 0.6-0.7
mm.
WARNING :Improper adjustment
may cause damage to the unit. If
engine does not run well after
carburetor adjustment, please
contact the authorized dealer where
you bought the product.
idle-speed screw
Spark Plug Wrench
7. Screw in the spark plug and tighten to a
8. Re-attach the spark plug cap.
9. If spark plug is damaged or the unit still
cannot work well after cleaning, replace
with a new one.
10. To ensure the machine work well Please use
0.6 -0.7 mm
MUFFLER
Spark Arrester Service
Every 50 hours of operation
1. Remove the spark arrester from the exhaust
hole of muffler.
2. Clean deposits from the spark arrester screen
by brushing it.
3. Install the spark arrester.
Spark Arrester

16
Carbon Removal of Engine Internal Parts
Every 50 hours of operation or found strikingly
low engine high-speed and rule out other causes
you need to clean up the engine internal carbon
deposition.
These items must be performed with proper tools.
please do it with the assistance of professionals or
authorized dealer.
GEAR CASE
1. Stop the engine to check if there is enough
lubricating grease in the gear case after
every 25 hours of use.
2. Remove the oiling bolt on the gear case.
3. Replenish good quality lithium grease as
4. Screw and tighten the bolt.
Remove the two screws at the joint of clutch and
tube ,disassemble the parts. then assemble the
parts In the reverse order after repair.
Clutch housing
Transmission Shaft
Clutch housing
Tube
Tube
TUBE/CLUTCH HOUSING
Oiling Bolt
Regular Check List
Items with must be performed with proper tools,please do it with assistance of professionals
or authorized dealer.
BEFORE OPERATION
DAILY INSPECT
EVERY
100 HRS
EVERY
50 HRS EVERY 2 YRS
Check the bolt and nut,tighten up if necessary
Check for gas leak
Check and clean air cleaner
Check the cooling air intake port,cooling fin,around muffler
Check and clean spark plug
Check and clean fuel filter
Remove carbon deposits on muffler and cylinder
Clean spark arrester
Replace spark plug
Replace fuel piping (fuel pipe,grommet)
ITEM
INTERVAL

CLEANING
LONG-TERM STORAGE
TRANSPORTATION
STORAGE
:
17
4.
5.

Problem Cause Remedy
Engine does not start
1. Spark plug wire disconnected.
2. Ignition switch set to OFF.
3. Fuel tank empty.
4. Stale or improperly mixed fuel
mixture.
5. Dirty air lter/oil lter.
6. Incorrectly gapped or dirty spark
plug.
7. Primer bulb not depressed
adequately.
8. Flooded engine.
1. Reconnect wire.
2. Set switch to ON.
3. Add fuel.
4. Empty the tank and ll with fresh fuel
mixture.
5. Clean or replace filter. .
6. Clean or adjust the gap.
7. Slowly and fully depress the primer
bulb 10 times.
8. Squeeze the throttle and pull the
starter rope with the choke lever in the
operating position.
Engine does not run
constantly at no load
1. Dirty air/oil lter.
. Stale or improperly mixed fuel
mixture.
3. Incorrectly gapped or dirty spark
plug.
1. Clean or replace lter.
2. Empty the tank and ll with fresh fuel
mixture.
3. Clean or adjust the gap.
Engine does not idle 1.Improper carburetor adjustment 1.Adjust according to the manual or turn to
an authorized service dealer for help.
Engine does not
accelerate
1. Dirty air/oil lter.
2. Throttle wire disconnected..
3. Defective throttle control lever.
4. Incorrectly gapped or dirty spark
plug.
5. Improper carburetor adjustment
1. Clean or replace lter.
2. Reconnect throttle wire.
3. Replace the throttle control lever.
4. Clean or adjust the gap.
5. Adjust according to the manual or
turn to an authorized service dealer for
help.
TROUBLE-SHOOTING
TROUBLE-SHOOTING
18
2
Engine has no power
or stops during cutting
1. Spool head or blade entangled with
grass.
2. Dirty air/oil filter.
3. Stale or improperly mixed fuel
mixture.
4. Improper carburetor adjustment
1. Stop the engine and clean the cutting
attachment.
2. Clean or replace the filter.
3. Empty the
tank and fill with fresh fuel
mixture.
4. Adjust according to the manual or turn
to an authorized service dealer for help.
If further assistance is required, please contact your authorized service dealer.

SPECIFICATION
19
Model Number: CC927D CC924 CC927U
Engine:
Displacement: 25.6cc 22.5cc 25.6cc
Carburator:
Clutch Type:
Starter:
Max.Power: 0.8KW 0.7KW 0.8KW
Mixing Ration(Fuel/Oil)
Idle Speed:
Speed at Max,Torque: 6000rpm 6000rpm 6000rpm
Speed at Max,Power: 7500rpm 7000rpm 7500rpm
WOT Speed: 8800+/-500rpm 8800+/-500rpm8500+/-500rpm
Trimmer Head Diameter:
Blade Head Diameter(if attached): 255mm 255mm 255mm
Shaft Tube Diameter
Gear Box Reduction Ratio:
Fuel Tank Capacity: 0.6L 0.45L
Net Weight: 5.1Kg
0.6L
5.5Kg5.0Kg
Package Size:
410mm
φ24mm
4:3
185x 30.5/13 x28cm
Diaphragm
Centrifugal
MHI Air Cooled 2-Stroke Engine
Recoil
50:1
3000+/-300rpm

CONTENTS
20
Model Number: CC927D
N/A N/A
N/A N/A
N/A1
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
1
11 1
11 1
11 1
11 1
11 1
1
1
CC924 CC927U
Main Unit(including D handle)
Item
1
2
3
4
5
6
7
8
9
10
10.1
10.2
10.3
10.4
Main Unit(including BULL handle)
Back Pack Harness
Cutting Attachment Shield
Trimmer Head
Manual
Warranty
Mixing Tank
Clamping Bracket for U handle
Tool Bag
Spark Plug Wrench
Screwdriver
Inner Hexagon Wrench(S4,S5)
Open End Wrenches