VEVOR 8840 User manual

Support and E-Warranty Certificate
https://www.vevor.com/support
MAGNETIC DRILL
USER MANUAL
We continue to be committed to offering tools at competitive prices. "Save Half", "Half
Price", or any other similar expressions used by us only represent an estimate of savings
you might benefit from buying certain tools with us compared to the major top brands and do
not necessarily mean to cover all categories of tools offered by us. You are kindly reminded
to verify carefully when placing an order with us if you are saving half in comparison with the
top major brands.

1
MODEL:8840/D8840/8850E/D8860
Have product questions? Need technical support? Please feel free to
contact us:
[e-mail]
NEED HELP? CONTACT US!
This is the original instruction, please read all manual instructions carefully
before operating. VEVOR reserves a clear interpretation of our user manual. The
appearance of the product shall be subject to the product you received. Please
forgive us that we won't inform you again if there are any technology or software
updates on our product.
MAGNETIC DRILL
USER MANUAL

2
DESCRIPTION OF THE SYMBOLS
The symbols used in this manual are intended to alert you of the possible risks. Please fully
read the safety signs and instructions below. The warning themselves do not prevent the
risks and can not be a substitute for proper methods of avoiding accidents.
This symbol, placed before a safety comment, indicates a kind of precaution, warning, or
danger. Ignoring this warning may lead to an accident. To reduce the risk of injury, fire, or
electrocution, please always follow the recommendations shown below.
WARNING - To reduce the risk of injury, users must read the instruction
manual carefully.
Please refer to the appropriate section in this user manual before any operation.
WARNING: Be sure to wear eye protectors, dust masks, and gloves when using
this product.
This product is subject to the provision of European Directive 2012/19/EC. The
symbol showing a crossed-out wheeled bin indicates that the product requires
separate refuse collection in the European Union. This symbol applies to the
product and all accessories marked with this symbol. Products marked as such
may not be discarded with normal domestic waste but must be taken to a
collection point for recycling electrical and electronic devices.

3
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
SAFETY WARNINGS
WARNING：Read all safety warnings, instructions, illustrations and
specifications provided with this power tool. Failure to follow all instructions listed
below may result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference.
General Power Tool Safety Warnings - Work area safety
a) Keep work area clean and well lit. Cluttered or dark areas invite accidents.
b) Do not operate power tools in explosive atmospheres, such as in the presence
of flammable liquids, gases or dust. Power tools create sparks which may ignite
the dust or fumes.
c) Keep children and bystanders away while operating a power tool. Distractions
can cause you to lose control.
d) Before work to tie the cuffs, women need to wear a good woman hat, long hair
hidden in the hat, is strictly prohibited to wear gloves.When the construction is
completed, the switch must be turned off before leaving.
General Power Tool Safety Warnings - Electrical safety
a) Power tool plugs must match the outlet. Never modify the plug in any way. Do
not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs
and matching outlets will reduce risk of electric shock.
b) Avoid body contact with earthed or grounded surfaces, such as pipes, radiators,
ranges and refrigerators. There is an increased risk of electric shock if your body
is earthed or grounded.

4
c) Do not expose power tools to rain or wet conditions. Water entering a power
tool will increase the risk of electric shock.
d) Do not abuse the cord. Never use the cord for carrying, pulling or unplugging
the power tool. Keep cord away from heat, oil, sharp edges or moving parts.
Damaged or entangled cords increase the risk of electric shock.
e) When operating a power tool outdoors, use an extension cord suitable for
outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric
shock.
f) If operating a power tool in a damp location is unavoidable, use a ground fault
circuit interrupter (GFCI) protected supply. Use of an GFCI reduces the risk of
electric shock.
General Power Tool Safety Warnings - Personal safety
a) Stay alert, watch what you are doing and use common sense when operating a
power tool. Do not use a power tool while you are tired or under the influence of
drugs, alcohol or medication. A moment of inattention while operating power tools
may result in serious personal injury.
b)Use personal protective equipment. Always wear eye protection. Protective
equipment such as a dust mask, non-skid safety shoes, hard hat or hearing
protection used for appropriate conditions will reduce personal injuries.
c) Prevent unintentional starting. Ensure the switch is in the off-position before
connecting to power source and/or battery pack, picking up or carrying the tool.
Carrying power tools with your finger on the switch or energising power tools that
have the switch on invites accidents.
d) Remove any adjusting key or wrench before turning the power tool on. A
wrench or a key left attached to a rotating part of the power tool may result in
personal injury.
e) Do not overreach. Keep proper footing and balance at all times. This enables
better control of the power tool in unexpected situations.
f) Dress properly. Do not wear loose clothing or jewellery. Keep your hair and
clothing away from moving parts. Loose clothes, jewellery or long hair can be
caught in moving parts.

5
g) If devices are provided for the connection of dust extraction and collection
facilities, ensure these are connected and properly used. Use of dust collection
can reduce dust-related hazards.
h) Do not let familiarity gained from frequent use of tools allow you to become
complacent and ignore tool safety principles. A careless action can cause severe
injury within a fraction of a second.
I) This product is not a toy. Keep it out of reach of children.
J) Only use safety equipment that has been approved by an appropriate
standards agency. Unapproved safety equipment may not provide adequate
protection. Eye protection must be ANSI-approved and breathing protection must
be NIOSH-approved for the specific hazards in the work area.
K) Do not lay the tool down until it has come to a complete stop. Moving parts can
grab the surface and pull the tool out of your control.
L) When using a handheld power tool, maintain a firm grip on the tool with both
hands to resist starting torque.
M) Do not leave the tool unattended when the Battery Pack is connected. Turn off
the tool, and remove the Battery Pack before leaving.
N) People with pacemakers should consult their physician(s) before use.
Electromagnetic fields in close proximity to heart pacemaker could cause
pacemaker interference or pacemaker failure.
O) The warnings, precautions, and instructions discussed in this instruction
manual cannot cover all possible conditions and situations that may occur. It must
be understood by the operator that common sense and caution are factors which
cannot be built into this product, but must be supplied by the operator
Power tool use and care
a) Do not force the power tool. Use the correct power tool for your application. The
correct power tool will do the job better and safer at the rate for which it was
designed.
b) Do not use the power tool if the switch does not turn it on and off. Any power
tool that cannot be controlled with the switch is dangerous and must be repaired.
c) Disconnect the plug from the power source and/or remove the battery pack, if
detachable, from the power tool before making any adjustments, changing

6
accessories, or storing power tools. Such preventive safety measures reduce the
risk of starting the power tool accidentally.
d) Store idle power tools out of the reach of children and do not allow persons
unfamiliar with the power tool or these instructions to operate the power tool.
Power tools are dangerous in the hands of untrained users.
e) Maintain power tools and accessories. Check for misalignment or binding of
moving parts, breakage of parts and any other condition that may affect the power
tooTs operation. If damaged, have the power tool repaired before use. Many
accidents are caused by poorly maintained power tools.
f) Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp
cutting edges are less likely to bind and are easier to control.
g) Use the power tool, accessories and tool bits etc. in accordance with these
instructions, taking into account the working conditions and the work to be
performed. Use of the power tool for operations different from those intended
could result in a hazardous situation.
h) Keep handles and grasping surfaces dry, clean and free from oil and grease.
Slippery handles and grasping surfaces do not allow for safe handling and control
of the tool in unexpected situations.
i) Please confirm the number of voltage volts before use. The working voltage is
not more than ±5%. If it is more than that, it will cause motor burning and leakage
accidents.
j) During construction, please pay attention to avoid water entering the motor or
blocking the ventilation hole, so as not to reduce the heat dissipation performance
of the motor and cause the motor to burn down.
k) In the steel plate construction, please pay attention to the safety of the lower
layer of personnel and goods, iron beam and column drilling, pay attention to the
safety of the structure of the building.
L) In suspension operation, the safety belt must be tightly tied and the magnetic
drill fixed to prevent sudden power failure or power failure caused by accidents.
M) Do not cut the power cord or change the plug yourself. This will cause the
machine to burn out.
Service

7
a) Have your power tool serviced by a qualified repair person using only identical
replacement parts. This will ensure that the safety of the power tool is maintained.
b) In any case, it should be started in no-load state. It is forbidden to start with
load, so as to avoid damage to the machine. Please pay attention to the stability
of the magnetic drill when working at high altitude, so as to prevent the machine
from falling down.
c) Ensure that the ground cable is grounded reliably.
d) When moving, the magnetic drill should be lifted to prevent damage to the
magnetic base.
e) In the maintenance must use the original parts, in order to make the machine
to achieve the best use state.
f) Maintain labels and nameplates on the tool. These carry important safety
information. If unreadable or missing, contact VEVOR for a replacement.
Vibration Safety
This tool vibrates during use. Repeated or long-term exposure to vibration may
cause temporary or permanent physical injury, particularly to the hands, arms and
shoulders.To reduce the risk of vibration-related injury:
a. Anyone using vibrating tools regularly or for an extended period should first be
examined by a doctor and then have regular medical check-ups to ensure medical
problems are not being caused or worsened from use. Pregnant women or people
who have impaired blood circulation to the hand, past hand injuries, nervous
system disorders, diabetes, or Raynaud’s Disease should not use this tool. If you
feel any symptoms related to vibration (such as tingling, numbness, and white or
blue fingers), seek medical advice as soon as possible.
b. Do not smoke during use. Nicotine reduces the blood supply to the hands and
fingers, increasing the risk of vibration-related injury.
c. Wear suitable gloves to reduce the vibration effects on the use
d. Use tools with the lowest vibration when there is a choice.
e. Include vibration-free periods each day of work.
f. Grip tool as lightly as possible (while still keeping safe control of it). Let the tool
do the work.

8
g. To reduce vibration, maintain the tool as explained in this manual. If any
abnormal vibration occurs, stop use immediately.
Grounding Safety
TO PREVENT ELECTRIC SHOCK AND DEATH FROM INCORRECT
GROUNDING: check with a qualified electrician if you are in doubt as to whether
the outlet is properly grounded. Do not modify the power cord plug provided with
the charger. Do not use the charger if the power cord or plug is damaged. if
damaged, have it repaired by a service facility before use. if the plug will not fit the
outlet, have a proper outlet installed by a qualified electrician.
MODEL AND PARAMETERS
Model
8840
D8840
8850E
D8860
Hole diameter (hollow
drill)(mm)
Φ40mm
Φ40mm
Φ50mm
Φ50mm
Fried dough twist drill
diameter(mm)
Φ3-Φ16
Φ3-Φ16
Φ3-Φ16
Φ3-Φ16
Tapping diameter(mm)
/
3-12
3-14
/
Drilling depth(mm)
50
50
50
50
Magnetic attraction(N)
13000
13000
13000
13000
Speed(r/min)
810
0-700
0-810
500
Trip(mm)
210
210
210
210
Input
220-240V～50/60Hz(EUR/AUS)
120V～60Hz(US)
Power(W)
1300
1300
1400
1550
Fuse(A)
15
Direction of rotation
Forward
Forward/
Reverse
Forward/
Reverse
Forward

9
STRUCTURE DIAGRAM
The buttons on the control panel of some machine models may be different.
Please see the real product for detailed information.
1. Rear cover 2. Chassis
3. Middle cover 4. Gear box
5. Electromagnet switch 6. Handle
7.Control Rod 8. Forward/reverse switch
9. Power switch 10. Speed regulating knob
11. Electromagnetic Base 12. Track
13. Seat belt sling hole

10
OPERATION AND USE
1. The drill bit must be sharp. When installing the hollow drill, insert the central
needle into the hollow drill, install the hollow drill on the output shaft, and finally,
tighten the fixing screw to secure the hollow drill.
2. Place the magnetic drill near the required drilling position, plug in the power
plug, align the drill bit with the machining position, and then turn on the switch of
the electromagnet so that the electromagnet can be absorbed on the surface of
the magnetic materials such as steel. (plate thickness more than 15mm)
(Pay attention to selecting appropriate adsorption materials and ensure that
there is no debris on the adsorption surface, check whether the magnetic force is
normal).
3. The machine should be fastened with a safety belt when working on the side or
top.
4. Thread one end of the safety belt into the handle hole of the frame, tie the
other end to the strong frame, and then buckle into the fasteners
(Try to pull with your hand, it should not be loose and displacement).
5. Turn on the power switch to check whether the drill bit is beating and the sound
is stable. If everything is normal, open the water valve first so that the cutting fluid
in the oil can flow out, and then turn the handle to feed

11
(Note: Do not open the water valve when working on the side and top position)
6. Feed should be slow at first. Do not exert too much in case of overload.
7. If the motor suddenly stops or gets stuck due to a fault, the drill control switch 9
must be turned off immediately (Note: do not turn off the electromagnet switch 5).
After continuous use for 2-3 hours, you need to rest to prevent the
electromagnetic seat from burning out due to overheating.
8. When the carbon brush is worn out, please replace it in time (both of them
should be replaced at the same time).
COOLING DOWN AND ADJUSTMENT OF THE TRACK
1. Fix B1 at B, then connect B2 to B1 and C.
2. Turn the joystick to determine whether the tightness of the track meets the
drilling requirements. If the tightness is not ideal, you can adjust it with the open
wrench and the hex wrench in the attachment.
a) Loosen the hex nut at place A with an open wrench.
b) Use the hex wrench to adjust the set screw at A and turn the joystick 7
simultaneously to feel whether the tightness of the track reaches the ideal state of
drilling.
c) After adjustment, tighten the hex nut at A with the open-end wrench.
Note: The tightness of the track has been adjusted before leaving the factory. If
there has been no strong vibration, fall, and other conditions, please do not adjust.

12
TROUBLE SHOOTING INSTRUCTION
Problem
Reason
Solution
Magnetic holder has no
suction.
Poor switch contact.
Repair switch.
The power is off.
Repairing the power
supply.
The fuse is blown out.
Replace the fuse
Electromagnet short
circuit or burn out.
Repair or replace the
magnetic base.
It is not adsorbed on
steel parts.
Change or thicken the
adsorption surface
(thickness > 15mm).
The machine won't work
after the power is on.
Poor switch contact.
Repair switch.
Loose plug.
Connecting the power
supply.
The brush does not
contact the commutator.
Replace the brush.
Magnetic seat suction is
weak.
The adsorbed workpiece
is too thin.
Change or thicken the
adsorption surface
(thickness > 15mm).
Small adsorbable
surface.
Change the adsorption
surface or temporarily
weld the thick adsorption
Elliptical holes appear in
the drilling holes.
The vibration caused the
fastener to loosen.
Tighten the fastener after
correcting the verticality.
The drill cuts only on one
side.
Regrinding bit.
There is debris on the
adsorption surface.
Remove clutter.
MAINTENANCE AND STORAGE
NOTE: Please remove the plug before maintenance.
1. After each use, clean the bottom of the magnetic seat drill and keep it properly.
2. Please butter the track in time when the slide is not smooth.
3. Please check the electrical protection device regularly.
4. Whether grounding is reliable.
5. Please check in time during the rainy season.

13

14
COMPONENT COMPARISON TABLE
No.
Name
No.
Name
No.
Name
1
Central needle
29
Coil spring
57
Bolt M6 x 6
2
Rubber pad
30
Tapping screw ST2.9
x 9.5
58
Cylindrical pin x 10
3
Elastic retaining ring
19
31
Brush holder
component
59
Bolt M5x25
4
Gasket
32
Nylon cable fixing
head component
60
Electric magnet
5
Spring plug
33
Hose
61
Spring gasket 6
6
Spring
34
Bolt m4x6
62
Bolt M6 x 40
7
Tapping screw ST4.8
x 40
35
Elbow cable retainer
component
63
Connect wire 2
8
Hexagon socket
screw M8 x 8
36
Carbon brush
64
Connect wire 3
9
Output axis
37
Oil can cover
65
Connect wire 1
10
Bearing 6004
38
Oil can
66
Connect wire 4
11
Seal ring
39
Bolt M4x10
67
gasket 4
12
APC connector R1/8
40
Cable fixing plate
68
Electromagnetic
switch
13
Reduction gearbox
41
Nut M4
69
Swing plate switch
14
Bearing 6003
42
Oil can retaining ring
70
Rod component
15
4# gear
43
Water valve
component G1/4
71
Rack shaft
16
Bearing 608
44
Bolt M6 x 20
72
Switch fixing plate
17
Flat key 4 x 4 x 6
45
Gasket
73
Circuit board
18
3# gear shaft
46
Name plate
74
Bolt M5 x 16
19
2# gear
47
Shaft ring
75
Nut M5

15
20
Middle cover
48
Screw-pad
combination M6x16
76
Base
21
Bearing 6001
49
Rack
77
Screw cable fixing
head
22
Rotor
50
Bolt M5 x 20
78
Cable connector
plug
23
Bearing 608
51
Track regulating bar
79
PU hose
24
Wind shield ring
52
Track bar A
861
Safety Belt
25
Tapping screw ST4 x
52
53
Guide rail plate
862
Open spanner 8mm
26
Stator
54
Track bar B
863
Fuse
27
Tapping screw ST4.2
x 25
55
Tapping screw ST2.9
x 9.5
864
Hexagonal open
spanner 2.5mm
28
Rear cover
56
Bolt M3 x 6
865
Hexagonal open
spanner 4mm

16
Manufacturer: Shanghai Ouyan Tools Co., Ltd
Address: 800 Laihe Road, Lvsi Town, Qidong, Nantong, Jiangsu Province
Importer: WAITCHX
Address: 250 bis boulevard Saint-Germain 75007 Paris
Made in China

Support and E-Warranty Certificate
https://www.vevor.com/support