The Handy THBC43 Installation and maintenance instructions

Page 1
OPERATOR’S MANUAL AND PARTS LIST
PETROL BRUSHCUTTER - THBC43
Spares & Support: 01793 333212
www.thehandy.co.uk
Before use please read & understand this manual, paying particular
attention to the safety instructions.
30/05/2012

Page 2
CONTENTS
SAFETY INSTRUCTIONS 3
MAJOR PARTS 4
FUEL 5
SPECIFICATIONS 5
ASSEMBLY 6-7
OPERATION 8
REPLACEMENT OF LINE 9
HINTS AND TIPS 10
MAINTENANCE 11
PARTS DIAGRAMS AND LISTS 12-15
EC DECLARATION OF CONFORMITY 16

Page 3
SAFETY INSTRUCTIONS
Read and understand the owner’s manual and labels afxed to the
brushcutter. Learn its application and limitations as well as the
specic potential hazards. Retain these instructions for reference.
• Use sturdy footwear and a helmet with eye and ear protection.
Protect exposed parts of your body. Wear heavy duty gloves,
preferably made of leather.
• Do not operate the brushcutter if you are tired, ill or under the
influence of alcohol or drugs.
• Do not smoke when using the brushcutter and ensure caution when
handling fuel. We recommend you fuel the machine at least 3m away
from where you wish to work in case any spilt fuel ignites when starting
the engine.
• Ensure that bystanders, children and pets stay at a safe distance of at
least 15m when starting or cutting.
• Inspect the brushcutter, and in particular the cutting blade, before use
for any worn or damaged parts. Do not use until the parts are repaired
or replaced.
• Before starting the engine make sure the blade is not in contact with
anything and have a clear work area and a secure footing.
• Hold the brushcutter rmly with both hands when using and keep all
parts of your body away from the machine. Always ensure a safe,
firm footing and do not over-reach or work above your waist.
• Always carry the brushcutter with the engine stopped.
• Never lay the brushcutterdown while hot on dry grass or any other
combustible material where there is a re risk from the hot engine.
• Only use the brushcutter in good light and visibility. During cold weather
be aware of slippery or wet areas.
• Limit the amount of time over which the brushcutter is to used
continuously - about 30-40 minutes per session, taking 10-15 minutes
break. Try to keep the total amount of work performed in a day to under
2 hours.
• Please recycle the cardboard packaging in which the brushcutter is
delivered.
Always shut off the engine before setting it down.

MAJORPARTSDIAGRAM
Page4
1 Warning!
2 Read Owners Manual
3 Wear Head Protection
4 Keep Feet away from Cutter
5 Keep Bystanders away
6 Sound Power Level
7 Wear Strong Gloves
8 Wear Safety Boots
9 Keep Hands away from Cut-
ter
10 Max. allowed RPM
Warning Labels on Machine
Fuel Tank
Starter
Air Cleaner
Harness Switch
Handle
Throttle
Throttle Cable
Ignition Switch
Shaft
Blade Guard
Blade
Gear Case

Page 5
FUEL
SPECIFICATION
Petrol isvery flammable. Do not smoke while using the brushcutter or
refuel the brushcutter near a ame or sparks. Allow the engine to cool
before re-fuelling. Fuel the engine at least 3m away from your work area.
• Use a ratio of 25:1 unleaded petrol to 2-stroke mineral oil.For synthetic or
or semi-synthetic use the oil manufacturer's ratio. Mix in the mixing bottle.
• Unscrew the fuel cap, and fuel the machine to 80% capacity. Fasten the
fuel cap tightly and wipe up any spillage.
• Ensure that any stored petrol/oil mixture (2-stroke) is clearly marked in
aseparate can and only stored for 4-6 weeks. If the brushcutter is
not going to be used for a long period, drain the mixture from the fuel
tank, start the engine and drain the carburettor of any remaining fuel.
• Dispose of any unwanted 2-stroke mixture at an authorised recycling
point.
Model THBC43
Blade 3T
Engine Air Cooled 2-stroke
Displacement 42.7cm³
Starter Recoil
Fuel Unleaded Petrol and 2 Stroke Oil
Fuel Tank Capacity 1.2 litres
Weight 7.8 kg

Page 6
ASSEMBLY
Attach the Handle:
• Loosen the four bolts (3) on the handle bracket (1).
• Insert the right handle (2) (throttle lever is attached) and
the left handle assembly (4) into the bracket and
retighten the bolts securely.
Safety Guard:
• Attach the safety guard (6) as shown and x securely
using the four bolts M5x25 supplied.
Adjusting the Throttle Cable:
• After releasing the throttle lever, pull the throttle cable.
• The normal play is 1 or 2 mm when measured at the
carburettor side end.
• If the play is too short or long, take off the air cleaner
cover, loosen the locknut (1) and adjust (2).

Page 7
ASSEMBLY, cont’d
Attaching the Metal Blade:
• Lay the brushcutter on its back.
• Insert the allen key (7) into the gear shaft, line up the holes
in the blade holder and the cover to stop the shaft turning.
• Place the blade onto the upper blade holder (5) and centre.
• Place washer (3), then lower blade holder (2) and nally
the nut (1). Screw in an anti-clockwise direction and
tighten using the box spanner.
• Release the allen key.
Note: to undo the nut to change the blade, turn clockwise.
Attaching the Line Trimmer Head:
• Lay the brushcutter on its back.
• Insert the allen key into the gear shaft as before to stop the
shaft turning.
• Remove the washer (3 in pic above) but leave washer (5)
on the shaft.
• Screw the nylon head (3) anti-clockwise onto the
threaded shaft (2) and tighten manually.
• Release the allen key.
Note: to remove the trimmer head, turn clockwise.

OPERATION
Before Starting The Engine
Check for loose screws and nuts and fill with properly mixed fuel. Place the
engine on stable ground with the engine stand (fuel tank) and the guard
resting on the ground.
To Start A Cold Engine
1. Push the priming pump 5 times.
2. Fully close the choke lever.
3. Set the switch to the Iposition.
4. Hold the trimmer shaft near the engine firmly and pull the starter strongly.
5. When ignition is heard, reset the choke and pull the starter.
6. Warm up the engine for about 3 minutes.
7. When the engine has started at the initial ignition open the choke lever
gradually.
To Start A Warm Engine
1. Fully open the choke lever.
2. Push the priming pump 5 times.
3. Hold the handle and depress the throttle trigger. Release the throttle
trigger while pushing the throttle lock button on the handle.
4. Set the switch to the Iposition.
5. Hold the trimmer shaft near the engine firmly and pull the starter strongly.
6. If the engine does not start, repeat the procedure for starting a cold engine.
CAUTION
1. After starting the engine, accelerate and decelerate the engine several
times by opening and closing the throttle trigger.
2. Air in the carburetor causes poor acceleration or engine stoppage.
3. Re-fuel before the fuel is used up. Starting the engine after using all of the
fuel is very difficult.
Stopping
Do not suddenly stop the engine when operating the machine at high speeds.
Gradually release the throttle trigger and idle the engine before setting the
switch to STOP.
CAUTION
Do not operate the engine at high speeds with no load on the cutting
attachment, especially when the engine is new. When operated at high
speeds with no load, it will accelerate to an excessively high speed that might
harm the engine.
Attaching the Harness
Attach the clip on the harness to the loop on the control handle and adjust to
suit the operator.
Page8

Page 9
REPLACEMENT OF LINE
Follow these steps to replace the cutting line.
• Stop the engine.
• Lay the trimmer on the oor so that the cutting head is facing up.
• Squeeze the head on both sidesat right angles to the eyelets.
• Remove the empty spool being careful not to lose the spring
behind the head.
• Clean the head thoroughly and inspect for any worn or damaged
parts.
To reload the spool with line:
• Cut two lengths of spare line 3 metres long.
• Position each line in the two holes located in the centre of the
spool and wind in the direction of the arrow on the spool.
• Wind the line on until you have about 15cm left.
• Secure the lines into the slots on the spool.
• Replace the spring and reposition the spool with the two cords in
the eyelets.
• Close the spool making sure it snaps together.
• Release the lines from the spool by sharply pulling each line
while pushing down on the spool.

Page 10
HINTS AND TIPS
Using the Metal Blade:
Use the metal blade attachment for cutting thicker grass, weeds and undergrowth.
Adjust the cutting speed to suit the material to be cut. Grass at medium speed and thick
weeds and shrubs at high speed.
If you operate at low speed there is a greater chance of weeds and twigs getting caught
around the blade.
Use the brushcutter like a scythe - sweep it to the right and left just above ground level
when cutting grass and light brush.
Using the Line Trimmer Head:
Use the nylon head for cutting grass around fence posts and trees where a metal blade
could become damaged.
When the two nylon cords become too short, accelerate the engine and bump the nylon
head on the ground. The two cords will automatically feed out and be cut off at the correct
length by the blade on the guard.

Page 11
MAINTENANCE
To ensure a long service life and to avoid any damage to the brushcutter, perform the
following maintenance at regular intervals.
Air Filter:
Check and clean the Air Filter regularly to ensure optimum performance.
Remove the air lter cover, take out the element and wash in lukewarm water. Allow to
dry completely and then replace. Clean off any excessive dirt and dust.
Fuel Filter:
Take the lter out of the fuelling port using a small wire hook. Disconnect the lter
assembly from the fuel pipe and unhook the retainer to disassemble it. Clean the
components with petrol.
Spark Plug:
Check the spark plug periodically and ensure that the gap between the electrodes is
between 0.6 and 0.7mm. Adjust where necessary using the universal wrench supplied.
If the spark plug is clogged with carbon, clean thoroughly or replace with an NGK BM6A
or Champion CJ8.
Grease:
Apply multipurpose grease to the gear head after every 25 hours of use.
Idle Adjustment Screw:
If the blade continues to run on when you release the throttle lever or the engine stops,
it may be necessary to adjust the Idle Adjustment Screw.
Turning it clockwise increases the engine speed and turning it anti-clockwise decreases
the speed.
Storage:
When storing the brushcutter for any length of time it is important to drain down the fuel,
both in the tank and the carburettor. Either drain the fuel manually or run the engine
until it uses up all the fuel.
Remove the spark plug and add a few drops of oil into the spark plug hole.
Pull the starter cord gently to conrm that a lm of oil covers the engine inside.
Tighten the spark plug. Clean dirt or dust from the cutter blade and the outside of the
machine and wipe with an oily cloth. Store in a dry place.

Page 12
PARTS DIAGRAM- DRIVE UNIT

Page 13
PARTS LIST - DRIVE UNIT
No Part No Description Qty
1 TH119-1 Engine 1
2 TH119-2 Housing Assembly 1
3 TH119-3 Pipe Comp 1
4-1 TH119-4-1 Bracket 1
4-2 TH119-4-2 Bolt M5x25 2
4-3 TH119-4-3 Guard 1
4-4 TH119-4-4 Screw 1
4-5 TH119-4-5 Blade 1
4-6 TH119-4-6 Bolt M5x25 4
4-7 TH119-4-7 Plate 1
4-8 TH119-4-8 Nut M5 4
4-9 TH119-4-9 Nut M10 1
4-10 TH119-4-10 Protector 1
4-11 TH119-4-11 Boss 1
4-12 TH119-4-12 Blade 1
4-13 TH119-4-13 Boss 1
4-14 TH119-4-14 Screws 1
5 TH119-5 Gearcase Assembly 1
6 TH119-6 Cam Tap Head 1
7-1 TH119-7-1 Screw ST3.5x16 2
7-2 TH119-7-2 Bolt 1
7-3 TH119-7-3 Throttle Lever 1
7-4 TH119-7-4 Handle Cover Right 1
7-5 TH119-7-5 Handle Pipe Right Hand 1
7-6 TH119-7-6 Handle Bracket Centre 1
7-7 TH119-7-7 Handle Bracket Lower 1
7-8 TH119-7-8 Bolt M5x25 4
7-9 TH119-7-9 Handle Bracket Upper 1
7-10 TH119-7-10 Bolt 2
7-11 TH119-7-11 Handle grip 1
7-12 TH119-7-12 Throttle Cable 1
7-13 TH119-7-13 Nut M5 1
7-14 TH119-7-14 Clamp 1
7-15 TH119-7-15 Bolt M7x20 1
7-16 TH119-7-16 Spring 1
7-17 TH119-7-17 Safety Lever 1
7-18 TH119-7-18 Button 1
7-19 TH119-7-19 Switch Assembly 1
7-20 TH119-7-20 Handle Cover Left 1
8 TH119-8 Harness Assembly 1

Page 14
PARTS DIAGRAM- ENGINE

Page 15
PARTS LIST - ENGINE
No Part No Description Qty No Part No Description Qty
1 TH120-1 Nut 1 32 TH120-32 Oil Seal 1
2 TH120-2 Bolt 2 33 TH120-33 Gasket, Case 1
3 TH120-3 Washer 2 34 TH120-34 Crackcase Right 1
4 TH120-4 Shoe Clutch 1 35 TH120-35 Screw 4
5 TH120-5 Washer 2 36 TH120-36 Washer 1
6 TH120-6 Bolt 4 37 TH120-37 Pulley 1
7 TH120-7 Cover 1 38 TH120-38 Gasket 1
8 TH120-8 Rotor 1 39 TH120-39 Recoil Assembly 1
9 TH120-9 Oil Seal 1 40 TH120-40 Screw 4
10 TH120-10 Lever choke 1 41TH120-41 Screw 1
11 TH120-11 Body Assembly 1 42 TH120-42 Screw 1
12 TH120-12 Plate 1 43 TH120-43 Cover 1
13 TH120-13 Screw 2 44 TH120-44 Bolt 2
14 TH120-14 Element 1 45 TH120-45 Mufer assembly 1
15 TH120-15 Plate 1 46 TH120-46 Plate 1
16 TH120-16 Cover Assembly 1 47 TH120-47 Gasket Base 1
17 TH120-17 Screw 1 48 TH120-48 Bolt 4
18 TH120-18 Key 1 49 TH120-49 Plate 1
19 TH120-19 Crankcase Left 1 50 TH120-50 Carburettor 1
20 TH120-20 Pin 2 51 TH120-51 Spark Plug 1
21 TH120-21 Bearing 2 52 TH120-52 Cylinder 1
22 TH120-22 Crankshaft Left 1 53 TH120-53 Gasket Insulator 1
23 TH120-23 Pin 1 54 TH120-54 Insulator 1
24 TH120-24 Ring 2 55 TH120-55 Screw 2
25 TH120-25 Piston 1 56 TH120-56 Coil Assembly 1
26 TH120-26 Bearing 1 57 TH120-57 Screw 2
27 TH120-27 Ring 2 58 TH120-58 Screw 1
28 TH120-28 Link 1 59 TH120-59 Screw 1
29 TH120-29 Crank Pin 1 60 TH120-60 Cover 1
30 TH120-30 Bearing 1 61 TH120-61 Grommet 1
31 TH120-31 Crankshaft Right 1 62 TH120-62 Clutch Spring 1

EC Declaration of Conformity
We，Importer
Handy Distribution Ltd.
SN3 4NS
Declare that the product
Designation: 42.7CC BRUSH CUTTER
Model: THBC43
Complies with the following directives:
2006/42/EC- Machinery Directive
2004/108/EC- Electromagnetic Compatibility Directive
2000/14/EC amended by 2005/88/EC- Noise Emission in the Environment by Equipment for
Use Outdoors Directive.
The conformity assessment procedure followed was in according with Annex V of the
Directive 2000/14/EC.
Name of the Notified Body: Intertek Testing Services Shanghai Ltd.
Address: Building No. 86, 1198 Qingzhou Road(North), Caihejing Development Zone,
Shanghai 200233, P.R.China.
-Measured Sound Pressure Level: 105.7 dB (A)
-Guaranteed Sound Power Level: 110 dB (A)
Standards and technical specifications referred to:
EN ISO 11806:2008
EN ISO 14982:1998
EN ISO 3744:1995
ISO 11094:1991
Authorised signatory and technical file holder
Date: 24/11/2010
Signature:__________________
Name / title: Mr. Simon Belcher / Managing Director
Hobley Drive, Stratton St Margaret, Swindon, Wiltshire, SN3 4NS.