Page 1
Model FM52EA
IMPORTANT: Read this manual fully before assembly
and use and observe all safety rules and operating
instructions
Earth Auger
Page 2
Earth Auger FM52EA2
Contents
Technical Specification 2
Know Your Earth Auger 3
Safety 4
Operation 6
Maintenance 8
Storage 10
Troubleshooting 11
Warranty 14
Exploded Diagram 15
Technical Specification
Engine Type 2 Stroke, air cooled, petrol
Engine Capacity
52cc
Power
1460 W @ 6500 rpm
Fuel Tank Capacity
1.2l
Petrol-Oil Ratio
25:1 for mineral oil
40:1 for synthetic oil
Auger Length
800mm
Auger Diameter
100/150/200/300 mm
Weight (with auger)
11kg
Weight (without auger)
9.5kg
Page 3
Earth Auger FM52EA 3
Know Your Earth Auger
Item Description
1 Handle
2 Spark plug cap
3 Ignition starter switch
4 Exhaust
5 Input drive
6 Choke
7 Pull start
8 Reduction gear
9 Fuel tank cap
10 Fuel tank
11 Lubrication hole
12 Air filter
Page 4
Earth Auger FM52EA4
Safety
1. The earth auger should only be operated by an adult.
2. Users must not operate the earth augur without first having read the
operating manual.
3. Do not operate the earth auger if tired or under the influence of alcohol
or drugs.
4. Ensure that anyone who uses the equipment is familiar with all controls
and safety precautions.
5. Wear non-slip protective shoes, protective gloves, glasses, ear defenders
and a safety helmet.
6. Remove any scarves or jewellery before operating the equipment.
7. Don’t start operation until you are sure the working area is clear. Keep
flames and sparks from engine and fuel to prevent fire.
8. Never run the engine in a poorly ventilated area where the exhaust fumes
may be trapped and not easily taken away.
9. When transporting the earth auger, turn off the engine and remove the
auger.
10. Replace the auger if there are cracks or other signs of damage on it.
11. Use unleaded petrol in a ratio of 25:1 for mineral oil and 40:1 for synthetic
oil.
12. Never fill the fuel tank with the engine running. Stop the engine and allow
it to cool before filling. Keep the engine clear from flames, sparks and
other heat sources when filling. Never smoke when filling the fuel tank.
13. Clear up any spilled fuel before operating the machine. Before starting
the machine, ensure you are a minimum distance of 3 metres from the
area where it was filled or fuel was spilled.
14. Always keep the handles of the equipment dry and clean.
15. Before starting ensure the auger is not locked.
16. Do not touch the auger or attempt servicing with the engine running.
17. Both after starting the engine and before stopping the engine, allow the
engine to run with no load for 2-3 minutes. Never suddenly stop the
engine at great speed.
18. Make sure that the bit does not turn when the engine is idling
19. Always hold the equipment with both hands. Keep all parts of your body
away from the auger, engine and exhaust.
WARNING: If used correctly, the auger is a powerful , fast, high
performance tool. If used improperly or without the due precautions
it could become a dangerous tool. For pleasant and safe work, always
strictly comply with the safety rules that follow and throughout this
manual.
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Earth Auger FM52EA 5
Safety
19. When moving the equipment during operation the engine should be
idling.
20. Never touch the spark plug or wire when the engine is running as an
electric shock may occur.
21. Store the earth auger in an upright position with an empty fuel tank.
22. Regularly check, adjust, repair and clean the earth auger.
23. Never use a damaged ,modified, or improperly repaired or assembled
auger. Do not remove, damage or deactivate any of the safety devices.
Only use bit of the type indicated in the table.
24. Do not disassemble the pull start, you can be seriously hurt.
25. Once the equipment has reached the end of it’s working life, drain
the fuel tank into a suitable container and dispose of the fuel and the
equipment at an approved recycling centre.
26. Only loan your auger to expert user who are completely familiar with
augers operation and correct use. Give other users the manual with
operating instruction, which they should read before using the augers.
27. All saw service, other than the operations shown in the present manual,
should be performed by competent personnel.
28. Keep this manual on hand and consult it before each use of tool.
29. Check, adjust, repair and clean the machine regularly. When replacing
parts, please use the tools specified by our company.
30. It is forbidden to hitch tools or applications to the P.T.O. that are not
specified by the manufacturer.
Page 6
Earth Auger FM52EA6
Operation
Lubrication of the Reduction Gear box
The auger is supplied with TAMOIL TAMLITH GREASE
2 grease in the reduction gearbox. Remove the screw
(A) under the reduction gearbox and check for the
presence of grease.
Fitting the Auger Bit
Fit the output shaft (B) into the seat on the bit (D)
and secure it using the appropriate gudgeon pin
(C).
Fuel Mixture
Mix the petrol and oil in a ratio of 25:1 if using mineral oil or 40:1 if using
synthetic oil. When preparing the mixture, only use oil for two stroke
engine.
Shake the fuel container before filling. Refill when the engine is switched
off and far away from naked flames.
Before unscrewing the fuel tank cap, position the auger on a flat ,solid
surface to prevent fuel spills.
Petrol is very flammable. Select outdoor bare ground for fuelling. Never
add or replace fuel when the engine is in operation or before the engine
stops.
Do not leave the mixture in the fuel tank or in a fuel canister for a long
period of time.
Do not start the engine if fuel leakage is found. Do not run the engine until
the leak is fixed.
1 part two-stroke
synthetic oil
40 parts petrol
Fig 1: Using Synthetic oil
1 part two-stroke
mineral oil
25 parts petrol
Fig 2: Using Mineral oil
150g
grease
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Earth Auger FM52EA 7
STARTING THE ENGINE
1. Put switch A in the “START”/I position .
2. Press safety lever (B) and throttle lever (C), lock it by pressing button (D).
3. Release lever (B) and (C).
4. Put the choke lever (E) in position “CLOSE” .
5. Push the primer bulb (F) a few times until the fuel comes out of the fuel
tube.
Operation
6. Pull the starter rope a few times until the engine starts.
When pulling the starting rope
Do not let the starter grip snap back
Do not pull the starter rope out all the way as it might break.
Guide it slowly back into the housing so that the starter rope can
rewind properly.
7. Put the choke lever (E) back to the original position “OPEN”. Once the
engine is running, press the throttle lever (C) to release button (D) and
let the engine idle.
Do not close the choke (E), when starting a hot engine.
When the engine is idling, the bit should not turn.
Page 8
Earth Auger FM52EA8
STOPPING THE ENGINE
1. Bring the throttle to the idle position (C), and run it for 2~3 minutes at a
low speed until the engine cools.
2. Switch off the engine by putting the stop switch A, in the “STOP”/O
position.
3. Remove the bit,clean the machine.
Operation
WARNING: Avoid stopping the engine suddenly when it is
running at high speed. Doing so could cause damage to the
machine.
AIR FILTER
Every 25 hours, remove the cover (K), and the filter (G). The filter should be
washed with petrol and dried before refitting it.
CARBURETTOR
Screw (H), must be adjusted so that the engine promptly responds to sharp
accelerations and gives good idle operation and gives maximum power
during the cutting phase.
Idle screw (L), is adjusted in order to ensure a good safety margin between
idle turning and clutch engagement.
Weather conditions and altitude may affect carburation.
Maintenance
L
Page 9
Earth Auger FM52EA 9
Maintenance
FUEL FILTER
Check the fuel filter (M), periodically. Replace it if too dirty . A dirty filter can
cause difficult starting and lower engine performance.
ENGINE
Clean the cylinder fins with compressed air or a brush periodically. Dangerous
overheating of engine may occur due to impurities on the cylinder fins.
SPARK PLUG
Remove the spark plug cover, unscrew the spark plug.
If carbon deposits are found, clean the electrode with abrasive paper and
adjust the electrode gap to 0.5-0.6mm.
BIT
Always check the drill bit. Sharpen or replace it if necessary.
The removable impact bit (P), and the non-removable blade (Q), can be bought
from the dealer.
Check and repair the blade (R), (S), and the bit tip (T), regularly. Or contact the
dealer to replace.
Page 10
Earth Auger FM52EA10
Maintenance
REDUCTION GEARBOX
Every 100 working hours change the grease in the reduction gearbox
Storage
1. Follow all the maintenance procedures described previously.
2. If storing for a long period of time,clean the auger completely and
grease the metallic part.
3. Remove , clean and oil the bit to prevent rusting.
4. Empty the fuel tank and put the cap back on.
5. Remove the spark plug and pour a small amount of oil into the cylinder.
6. Pull the starting rope several times to rotate the crankshaft to distribute
the oil. Put the spark plug back in.
7. Wrap the engine in a plastic sheet.
8. Store the auger in a dry place, preferably off the ground and away from
heat sources.
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Earth Auger FM52EA 11
Troubleshooting
Starting Failure
Trouble Causes Remedies
Spark plug
(no spark)
Spark plug
1. Spark plug is
fouled/wet
Clean and dry
2. Carbon deposit
in the spark plug
Clean
3. The plug gap
is too big or too
small
Adjust gap at 0.5 -
0.6mm
4. The electrode
burned
Replace
5. The insulation
damaged
Replace
Magneto
1. Wire damaged
or broken
Tighten or replace
2. The insulation
of coil is bad
Replace
3. The gap
between stator and
rotor is too big
Adjust gap at
0.4mm
Spark plug works
normally
Compression is
fine and fuelling
normally
1. Excess fuel
being drawn in
Reduce the fuel
2. Fuel is bad /
dirty or mixed with
water
Replace
Fuelling well but
compression bad
Cylinder and
piston ring worn
Replace
No fuel in
carburettor
1. No fuel in the
tank
Fill the tank
2. Fuel cock is not
open
Open it
3. The valve of
the fuel tank cap
clogged
Clean
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Earth Auger FM52EA12
Troubleshooting
Lack of Power
Trouble Causes Remedies
The compression
is fine and has
spark
1. The fuel tube is sucking in air Tighten it
2. The connection of carburettor is sucking
in air
Change the
gasket or tighten
it
3. The fuel mixed with water Change the fuel
4. The filter plate clogged Clean
5. Carbon clogs exhaust, cylinder Clean
Engine overheats
1. Fuel is too thin Adjust the
carburettor
2. Cylinder covered with carbon Clean
Engine noisy or
knocking
1. Bad Fuel Replace
2. Combustion chamber covered with
carbon
Clean
3. The running parts worn Check and
replace
Engine Stops While Running
Trouble Cause Remedies
Engine stops
suddenly
1. The piston jam Repair or replace
2. Carbon deposit in the spark plug and
short circuit
Clean
3. Magneto damaged Replace or repair
The engine stops
slowly
1. Lack of fuel Fill the tank
2. Carburettor clogged Clean
3. Water in fuel Refill with fresh
fuel
Page 13
Earth Auger FM52EA 13
Troubleshooting
Engine Hard To Stop
Trouble Cause Remedies
Engine Cylinder and piston overheat causing to
self ignition
Remove carbon
deposits
Ignition circuit
1. Spark plug pole overheats Clean the plug
and check the
gap
2. Stop button is bad Check and
remedy
Other
Trouble Cause Remedies
Engine works but
bit not turn
1. Clutch damaged Replace
2. Interference fit failure between gear
shaft and output shaft
Replace the relative part
Knocking sound
in gearbox
1. Gear worn Replace the relative part
2. Bad lubrication Clean and grease
3. Impurity in the gearbox Clean and grease
WARNING: Maintenance procedures that are not covered in
this manual must only be carried out by authorized service
personnel. Only use ORIGINAL SPARE PARTS.
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Earth Auger FM52EA14
Warranty
Warranty
This product carries a limited parts warranty for 1 year from the
date of purchase. Please keep your proof of purchase as this will be
required for any claim.
Should this product become defective, contact the store where it
was purchased and either replacement parts will be issued, it will be
repaired or it will be replaced free of charge.
IMPORTANT: NO RESPONSIBILITY IS ACCEPTED FOR INCORRECT
USE OF THIS PRODUCT. MODIFICATION OF THIS PRODUCT (UNLESS
SAID MODIFICATION HAS BEEN AUTHORISED BY FOREST MASTER)
WILL VOID THE WARRANTY.
This Warranty Does Not Cover:
1. Any part that has become inoperative due to misuse, abuse,
neglect, accident, improper maintenance, or alteration
2. The unit, if it has not been operated and/or maintained in
accordance with the owner’s manual
3. Normal wear
4. Routine maintenance items such as lubricants, blade sharpening
5. Normal deterioration of the exterior finish due to use or exposure.
Shipping Charges:
Shipping charges for the delivery or collection of the unit, parts of the
unit or attachments to the unit are the responsibility of the purchaser.
The purchaser must pay transportation charges for any part submitted
for replacement under this warranty unless such return is requested
by Forest Master.
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Earth Auger FM52EA 15
Exploded Diagram
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Earth Auger FM52EA16
Parts List
Part No. Name/Description Q'ty Remark
1 Engine assembly 1
2 Gear box assembly 1
2-1 Clutch bowl assembly 1
2-2 Gear box housing top 1
2-3 Position Pin 4×10 4
2-4 Ball bearing 2
2-5 Hole circlip dia 35 1
2-6 Shaft circlip dia 15 1
2-7 Primary gear 1
2-8 Gear box housing middle 1
2-9 Ball bearing 3
2-10 Secondary gear 1
2-11 Ball bearing 1
2-12 Sealing ring 20×35×7 1
2-13 Gear box housing bottom 1
2-14 Inner hex bolt M5×45 4 white
2-15 Spindle 1
2-16 Inner hex bolt M5×30 2 white
2-17 Grease filling bolt M10×10 1
2-18 Middle gear 1
2-19 Inner hex bolt M5×25 2 white
3 Control handle assembly 1
3-1 Screw ST2.9×10 1 black
3-2 Half-throttle lock button 1 orange
3-3 Lock spring 1
3-4 Left control handle housing 1 black
3-5 Cut-off switch 1 red
3-6 Lock pin 1 black
3-7 Throttle trigger 1 orange
3-8 Throttle trigger spring 1
3-9 Right control handle housing 1 black
Page 17
Earth Auger FM52EA 17
Part No. Name/Description Q'ty Remark
3-10 Screw ST3.5×16 2 black
3-11 Inner hex bolt M5×30 1 black
3-12 Throttle cable 1
3-13 Protection tube dia 9 1 L=360mm
3-14 Cut-off wire set 1
3-15 Lock off lever 1 orange
3-16 Lock off spring 1
3-17 Lock nut M5 1 black
4 Auxiliary handle 1 black
5 Handle bracket 1 black
6 Inner hex bolt M6×20 4 white
7 Flat washer dia 6 4 black
8 Spring washer dia 6 4 black
9 Inner hex bolt M6×20 4 black
10 Auger bit pin 1
11 Open pin 1.7×32 1
12 Auger bit dia 200mm 1 black
13 Fixed belt 1 black
Parts List
ACCESSORY
Part No. Name/Description Q'ty Remark
14 Alley key S=4mm 1
15 Short Alley key S=5mm 1
16 Box spanner 17×19 1
17 Open spanner 8×10 1
18 Open spanner 13×16 1
19 Fuel mixture bottle 1
Page 18
Earth Auger FM52EA18
Parts List
CHOICE
Part No. Name/Description Q'ty Remark
19 Extension shaft 1 black
20 Auger bit dia 80mm 1 black
21 Auger bit dia 100mm 1 black
22 Auger bit dia 150mm 1 black
Page 19
Earth Auger FM52EA 19
Parts List
Page 20
Earth Auger FM52EA20
Parts List
Part No. Name/Description Q'ty Remark
1 Fuel filter 1
2 Fuel pipe plug 1
3 Bolt M5×16 3 black
4 Fuel tank 1
5 Bolt M5×25 2 black
6 Fuel tank rack 1
7 Fuel tank rack pad 1 black
8 Fuel tank cap assembly 1 black
9 Fuel tank rubber foot 2
10 Bolt M5×20 9 black
11 Starter recoil assembly 1 black
12 Starter gasket 1
13 Nut M8×1.25 1 white
14 Starter clutch assembly 1
15 Oil sealing 12×22×7 1
16 Rear half crank case 1
17 Crank case gasket 1
18 Ball bearing 2
19 Crank shaft assembly 1
20 Key 3×5×13 1
21 Front half crank case 1
22 Position pin 4×10 4
23 Oil sealing 15×30×7 1
24 Bolt M5×12 3 black
25 Spring washer dia 5 4 white
26 Flat washer dia 5 4 white
27 Inner hex screw M5×30 4 white
28 Ignition rotor 1
29 Lock nut M8×1.25 1
30 Ignition coil 1
Page 21
Earth Auger FM52EA 21
Parts List
Part No. Name/Description Q'ty Remark
31 Cut-off wire set 1
32 Washer dia 8 2
33 Wave washer dia 10×14 2
34 Clutch bolt 2
35 Fan housing 1
36 Bolt M5×25 4 black
37 Needle bearing 1
38 Piston pin circlip 2
39 Piston 1
40 Piston pin 10×32.7 1
41 Piston ring 2
42 Cylinder gasket 1
43 Cylinder 1
44 Inner hex bolt M5×20 4 black
45 Cylinder cover 1 orange
46 Spark plug Champion 1 champion
47 Spark plug cover 1 black
48 Muffler gasket 1
49 Muffler assembly 1
50 Bolt 6×65 2
51 Lock nut M6 2 black
52 Muffler cover 1 black
53 Insulator gasket 1
54 Insulator tube 1
55 Carburettor gasket 1
56 Carburettor 1
57 Screw 3×8 1 white
58 Choke lever 1 black
59 Air filter base 1 black
60 Ignition coil 1
Page 22
Earth Auger FM52EA22
Parts List
Part No. Name/Description Q'ty Remark
61 Choke plate 1
62 Air filter inner plate 1
63 Bolt M5×55 2 white
64 Air filter sponge 1
65 Sponge cover 1 white
66 O-ring 3.15×1.8 1
67 Air filter cover 1 black
68 Black fuel pipe dia 2.4×4.5 1 latex black
69 Clear fuel pipe dia 2.5×4.5 1 latex translu-
cent
Page 23
Earth Auger FM52EA 23
Page 24
Earth Auger FM52EA
NOTE: It is our policy to continually improve products and as such we reserve the right to alter
data, specifications and component parts without prior notice.
Manufactured under license for Forest Master Limited.
Registered Office:
Forest Master Ltd, Industry Road, Heaton, Newcastle Upon Tyne, NE6 5XB, United Kingdom.
Tel: +44 191 2966939 email: [email protected] - web: www.forest-master.com
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