Original instruction
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40V LITHIUM-ION CORDLESS LINE
TRIMMER
Model: E312D
Operator’s Manual and Part List
Before use please read & understand this manual, paying particular attention
to the safety instructions.
Retain these instructions for future reference
Manufacturer: Ningbo NGP Industry Co., Ltd.
Address: No. 88, Lane 666, Jinshan Road, C Zone Jiangbei Investment Center, Ningbo
315020, P. R. China
Original instruction
2 / 14
CONTENTS
• Contents………………………………………………………….2
• Specifications…………………………………………………….3
• Symbols…………………………………………………………..4
• Safety Instructions………………………………...………...…..5
• Major Parts of the Line Trimmer………………………………..6
• Assembly and Operation……..……………………..………7-12
• Exploded View and Part List…………………………………13
• EC Declaration of Conformity…………………………………14
Original instruction
3 / 14
PRODUCT SPECIFICATIONS
Model
E312D
Rated Voltage
40V DC
No Load Speed
8300rpm
Cutting head
Bump feed
Cutting Line Diameter
1.6mm
Cutting Swath Diameter
12“/300mm
Weight (w/o battery pack)
3.1kg
Guaranteed sound power
level
96 dB(A)
Battery Pack
Lithium Ion – EP20, EP40 or
EP60 (2.0, 4.0 or 6.0Ah).
Battery Charger
EC20 or EC50 (2.0A or 5.0A)
These instructions should be read in conjunction with the
instruction manual for the battery pack and charger.
Original instruction
4 / 14
SYMBOLS
Warning, safety alert.
Read and follow all safety precautions in the
owner’s manual.
Protective goggles/visor, protective helmet &
hearing protection.
Do not expose to rain.
Beware of thrown or flying objects to bystanders.
Keep bystanders a safe distance away from the
machine.
Thrown objects can ricochet and result in personal
injury or property damage. Wear protective clothing
and boots.
Beware of falling objects. Keep bystanders away.。
Original instruction
5 / 14
SAFE OPERATING PRACTICES
1. Training
a) Read the instructions carefully. Be familiar with the controls and the correct use of the machine.
b) Never allow children or people unfamiliar with these instructions to use the machine. Local regulations
can restrict the age of the operator.
c) Keep in mind that the operator or user is responsible for accidents or hazards occurring to other people
or their property.
2. Preparation
a) Before use, always visually inspect the machine for damaged, missing or misplaced guards or shields.
b) Never operate the machine while people, especially children, or pets are nearby.
3. Operation
a) Wear eye protection and stout shoes at all times while operating the machine.
b) Avoid using the machine in bad weather conditions especially when there is a risk of lightning.
c) Use the machine only in daylight or good artificial light.
d) Never operate the machine with damaged guards or shields or without guards or shields in place.
e) Switch on the motor only when the hands and feet are away from the cutting means.
f) Always disconnect the machine from the battery pack
1) whenever the machine is left unattended;
2) before clearing a blockage;
3) before checking, cleaning or working on the machine;
4) after striking a foreign object;
5) whenever the machine starts vibrating abnormally.
g) Take care against injury to feet and hands from the cutting means.
h) Always ensure that the ventilation openings are kept clear of debris.
Original instruction
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ASSEMBLY
Warning! Remove the battery pack before cleaning or maintaining the tool, fitting the edger
wheel or plant guard or before making any adjustments to the tool, especially around the string head.
Remove battery pack before transporting or storing the tool
Fitting the guard
The guard is an essential part of the tool and must ALWAYS be used. Otherwise damage to the trimmer and
injury to the operator may occur. The guard is not fitted to the trimmer when it is delivered to you to avoid
damage in transit.
To fit the guard, align the opening in the guard with the underside of the trimmer head as shown. Tighten the
four screws (highlighted in the drawing) to fix the guard in place.
Wheel assembly installation
The edger wheels are needed for edge trimming, and although they are not needed for normal trimming, they
can be left fitted to the machine during normal trimming operations.
To fit the edger wheel assembly, slide it downwards onto the grey plastic track on the left side of the trimmer
head. You will feel it click into place. You may need to use a screwdriver to lift the locking tab before you can
slide the assembly into place
The edger wheel assembly can be removed by lifting the locking tab (use a tool if necessary) and sliding upwards.
Fitting the plant guard
The plant guard is used to prevent your trimmer from cutting your plants. The wire plant guard is inserted into
the holes provided in the front of the head. The plant guard can be folded up when not in use, or easily removed
Fitting and Removal of the battery
Original instruction
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The battery should always be removed whenever you are not using the tool and especially when you
are adjusting or transporting the tool to avoid accidental operation.
To insert the battery, slide it into the battery cradle on the top of the line trimmer, aligning the ribs in the cradle
with the slots in the battery until it latches into place. Check that the battery is securely locked into place
To remove the battery press and hold the latch on the rear of the battery pack and slide the battery away from
the trimmer.
Rewinding the spool
The spool is supplied with the line pre-wound. The twisted line is 1.65mm (0.065”) in diameter, which gives good
cutting performance and reduced noise. Follow the instructions below to rewind new line onto the spool.
To remove the string head, press and hold the shaft lock button and unscrew the head anti-clockwise.
Component parts of the string head
Cut a piece of nylon line 1.65mm (0.065”) in diameter maximum 12m long (you may find it easier to practice with
a shorter line length at first). Find the centre of the line and loop it onto the notch in the centre flange of the
spool. Wind the line around the spool, in the direction indicated by the arrow on the spool, keeping each end of
the line in its own channel. Keep the line tight as you wind so that the line coils smoothly onto the spool
Wrap the line around the spool leaving about 20cm line exposed on each side
Keep the line tight and clip the lines into the notches in the bottom flange of the spool to hold the line in place
while you fit the spool into the housing.
The smaller end of the spring goes into the top of the spool
Then put the spool and spring into the housing leaving the ends of the line protruding from the cut outs on each
Original instruction
9 / 14
side.
Thread the string guides onto the line as shown
Slide into place. Do the same on both sides.
Position the cover in place as shown and press the cover onto the housing until the clips snap into place.
Pull on both ends of the line to free them from the notches in the spool.
To replace the spool, press on the spool lock button and screw the head clockwise onto the shaft and hand
tighten.
OPERATION
BEFORE OPERATING THIS TOOL, ENSURE THAT THE GUARD IS FITTED TO THE HEAD OF THE
MACHINE. NEVER USE THE MACHINE WITHOUT THE GUARD
Starting/Stopping the trimmer:
To switch the trimmer on, press and hold the safety switch (3) and then pull the trigger switch (2) on the handle.
To switch the trimmer off, release the trigger switch. Be aware that the spool will continue to rotate for a short
period.
Adjusting the line length – Bump feed head
During use, the line will become worn, or may break off if it strikes a stone or a similar hard object. To increase
the length of the line, switch on the trimmer and while it is running tap the head of the trimmer against the
ground. When the orange button on the trimmer head is bumped against the ground, centrifugal force will
extend the line. Excess line will be cut off by the cutting blade built into the ground.
Height adjustable handle
The auxiliary handle (5) is height adjustable. To move the handle, first release the orange handle clamp on the
underside of the handle. Slide the handle to the desired height and clamp in position
Original instruction
10 / 14
Setting the trimmer head angle
The angle of trimmer head can be set to different working positions.
Press the “PUSH” button with one hand and rotate the trimmer head to the required position. Release the “PUSH”
button and the head will lock into place. There are 5 preset lock positions
Setting the handle length
Turn the lock sleeve towards the ‘unlock’ symbol about half a turn. Slide the lower part of the trimmer up or
down to the desired length. Lock it in position by turning the lock sleeve towards the ‘lock’ symbol.
Trimming Mode
There are 2 working positions, for normal trimming (shown in A) and for edging (shown in B). To use the trimmer
in edging mode, it is essential to fit the wheels. In normal trimming mode, the wheels are not used, but need not
be detached from the trimmer
A B
To use the trimmer in edging mode, slide the orange locking knob on the lock sleeve forward and rotate the
lower part of the trimmer until the orange knob aligns with the arrow. Release the locking knob and the trimmer
will lock into edging mode. Use the same process to return to normal trimming mode.
unlock
push
Original instruction
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Maintenance, storage and disposal
1. Disconnect the machine from the battery pack before carrying out maintenance or cleaning work.
2. When not in use store the machine out of the reach of children.
3. Use only manufacturer recommended replacement parts and accessories.
4. To clean the tool, remove battery pack and use only mild soap and a damp cloth to clean the tool. Do
not immerse tool in water or spray with a hose. Do not allow any liquid to get inside it. Do not clean
with a pressure washer.
5. Inspect and maintain the machine regularly. Have the machine repaired only by an authorized
repairer.
6. The battery must be removed from the appliance before it is scrapped.
7. The appliance must be disconnected from the supply mains when removing the battery.
8. The battery is to be disposed of safely.
BATTERY CHARGER
WARNING: This charger can be used with an input voltage of 100-250V and an AC frequency of
50-60Hz.
To avoid the risk of damage and injury, only use the charger to recharge Rdback 40V battery packs.
Never try to recharge non-rechargeable batteries.
WARNING: If the charger is plugged in and no LED lights are illuminated, unplug and check with your
nearest authorized service centre. Do not attempt to use the charger.
Status indicator lights
The LED light indicates the operating status and the state of charge of the battery.
- LED steady red – the charger is ready to charge, but no battery is connected
- LED flashes green. Battery is charging.
- LED steady green: The battery is fully charged and can be removed.
- LED flashes red: battery fault or overheat.
Charging the battery
- Plug the charger into an AC outlet 100-250V (normal household voltage).
- Insert the battery into the slots of the charger and slide into place until the battery locks into place
- The LED will flash green while the battery is charging
Battery
Charger
LED
Original instruction
12 / 14
- Once the battery is fully charged, the LED indicator will show a steady green light.
- Remove the battery by pressing and holding the latch button and sliding out of the charger
Lithium Ion batteries have no memory effect – a partial charge will not damage your battery
Storage of the charger and battery
For long-term storage, it is preferable that the battery is fully charged and stored in a dry place at a
temperature between 10 -25 ° C.
- The charger should be stored in the same conditions as the battery, taking care that no foreign object
such as metal chip or other can enter through the ventilation slots of the charger.
CAUTION: Only use the supplied charger and batteries with this tool
EXPLODED VIEW AND PARTS LIST
No.
Part No.
Description
QTY
No.
Part No.
Description
QTY
1
20910110
Locking block
1
33
20920030
Right housing
1
2
20910100
Body cover
1
34
20300130
Right tumbler
1
3
20910090
Pipe sleeve
1
35
20300120
Left tumbler
1
4
60390180
Adjustment spring
1
36
20920020
Left housing
1
5
20470050
Rotate switch
1
37
60390190
Adjustment spring
1
6
71080090
aluminum pipe
1
38
20430150
Angle adjust wheel
1
7
20910120
Clip
2
39
20530080
Left switch
1
8
60170730
Tapping screw
4
40
60070120
Self tapping screw
2
9
20910080
Left adjust body
1
41
20430160
Wheel hub
1
10
20910080
right adjust body
1
42
30070070
Motor
1
11
71080100
aluminum pipe
1
43
20150080
Lower cover of
1
Original instruction
13 / 14
gear box
12
20910050
Locking plate
1
44
60070180
Screw
2
13
20910060
Rubber box
1
45
70670320
Motor wheel
1
14
20910130
Lock rubber
1
46
20930030
protection cover
1
15
60070110
Tapping screw
2
47
60480070
Self tapping screw
4
16
20910040
auxiliary handle
1
48
Head part
assembly
1
17
20340140
Foam tube
1
49
60170690
Self tapping screw
2
18
20910020
Aluminum pipe
bushing
1
50
70130450
Blade
1
19
60250210
cylindrical pin
1
51
60390200
Spring
1
20
20910030
Handle bracket
1
52
70670340
Gear shaping
1
21
60170670
Self tapping screw
17
53
20530100
button
1
22
21060130
Right handle
assembly
1
54
70230170
Plant guard
1
23
EP40
Battery
55
60250060
cylinder pin
1
24
21060110
Left handle
assembly
1
56
60010210
Bearing
1
25
30010240
Male tab
4
57
60350130
Flat key
1
26
20800020
Plug in seat
1
58
70030660
Output shaft
1
27
20470030
Self lock switch
1
59
70670330
Gear wheel
1
28
60380380
Self lock spring
1
60
60240230
Spring washer
1
29
20470040
Start switch
1
61
20150070
Upper cover of
gear box
1
30
30080030
Micro switch
1
62
60170070
Self tapping screw
5
31
60390170
Start spring
1
63
60070120
Self tapping screw
2
32
20530090
Right button
1
64
20880400
Wheel
2
65
20640220
Wheel hub
1
Original instruction
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EC Declaration of conformity
Herewith we,
Manufacturer: Ningbo NGP Industry Co., Ltd.
Address: No. 88, Lane 666, Jinshan Road, C Zone Jiangbei Investment Center, Ningbo
315020, P. R. China
declare that the machine/s
Designation: LITHIUM-ION CORDLESS LINE TRIMMER
Model/Type: E312D
correspond with the applicable EU directives
2006/42/EC, 2004/108/EC
and are manufactured in accordance with the following standards or standardized documents:
EN 60335-1:2012+A11, EN 50636-2-91:2014
EN 55014-1:2006+A1:2009+A2:2011, EN 55014-2:1997+A1:2001+A2:2008
The technical documentation is kept by our authorized representative
KeepGreen GmbH – KREUZSTRASSE 15 – 8808 ZURICH SWITZERLAND
Ningbo, China
2014-11-25
Lenny lu
place and date of the declaration
signature of the person
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