202110281046314780.pdf - 第9页

16 51086C 17 V_SC_51086C_202105 0-25% 25-50% 50-75% 75-100% LED display Remaining battery 8. Operation T he proper tightening torque may vary depending on the type or size of screw/bolt and the material of workpiece to b…

51086C

V_SC_51086C_202105

Machine part:

1. Chuck

2. Work light

3. Start/stop switch

4. Battery level display

5. Battery pack lock button

6. Reversing yoke

7. Battery pack

Accompanied accessories:

Model Content Quantity

51086C 2.0 Ah Li-ion battery

pack

30min charger 1

We recommend that you choose the accessories

from the store where you purchased the electric

tool. Please use the high-quality accessories from

the well-known brands. Please choose the right

accessory for your job. Please refer to the accessory

package and you will get more methods and help for

using the accessory.

Specification

Model 51086C

Voltage 12V

No-loading speed 0-2300/rev/min

Frequency 0-3000 impacts/min

Max. torque 100 N•m

Maximum

diameter of chuck

6.35mm

Machine weight 1.1kg

Battery capacity 2000mAh

Recharge time 30min

OPERATION GUIDELINE

Before the use

1) Charging

This charger and machine shall be used together. Do

not use other chargers.

The machine has a protection circuit. When the

battery is low, the protection circuit is turned on and

the machine stops rotating.

The machine may become hot under the high

temperatures or after a long period of operation. At

this time, do not charge immediately but wait until

the battery is cooled. Otherwise, the service life of

battery will be shortened or the charging failure may

be caused due to overheating.

For the first charging or after a long period of storage,

the efficiency of first charging may only reach about

60%. After 2-3 charging and discharging cycles, the

battery efficiency may reach 100%.

2) Installation and removal of battery pack (see

Figure A)

Press the lock buttons on both sides of battery pack

and pull it out. To insert the battery pack, simply push

it into the machine. Avoid the excessive force

OPERATION

1. Start/stop (see Figure B)

Press and hold the switch (1) to start the machine,

and release it to stop the machine.

2. Speed regulation

Change the force applied to the switch to regulate the

rotating speed. The range of adjustment is between

0 and the maximum rotating speed. The smaller the

force is, the lower the rotating speed is. The drilling

starts slowly and stably. After the stable and reliable

start, press the switch fully for higher speed.

WARNING

Do not operate at low speed for a long time by

pressing the switch. Otherwise the machine will be

overheating inside. Change the rotating speed after

stop.

3. Switch lock (see Figure C)

The switch has the lock protection function which

Caution: Please read the instruction

carefully before operating the machine.

Sleeve

Chuck

51086C

V_SC_51086C_202105

0-25%

25-50%

50-75%

75-100%

LED display Remaining battery

8. Operation

The proper tightening torque may vary depending

on the type or size of screw/bolt and the material of

workpiece to be fastened.

Hold the tool and place the tip of bit on the head of

screw. Apply a forward pressure to the tool to make

the screwdriver bit not slip off the screw, and start the

tool to begin the operation.

1) The longer the impact lasts, the greater the

torque is. The maximum value is achieved at

about 6-10 s.

2) The higher the speed is, the greater the torque

is.

3) The harder the workpiece to be fastened is, the

greater the torque is.

4) Be sure to tighten the small screw slowly for a

short time. Otherwise the screw will be damaged.

Note:

1) Use a screwdriver bit that fits the screw /bolt

head.

2) When tightening the screw, it is best to pre-drill

a pilot hole.

3) When tightening the M8 or smaller screw, select

the appropriate impact force and take care to

adjust the pressure applied to the switch trigger

to avoid damage to the screw.

4) Hold the tool and align it with the screw.

5) If the impact force for fastening the screw is

too strong or the fastening time is too long, the

screw or screwdriver bit tip may be subjected

to excessive pulling, squeezing, pressure and

even be damaged. Be sure to perform a test

to determine the proper tightening time of the

screw before starting the job.

helps to avoid the accidental activation of the hand

drill. Lock the machine by adjusting the reversing yoke

(2) to the center position.

4. Rotation reversing (see Figure C)

Forward: Push the side of reversing yoke (3) marked

with “

" to the end (left side) for drilling a

hole and driving the screw. Reverse: Push the side of

reversing yoke marked with “

" to the end (right

side) for releasing or unscrewing the screw.

WARNING

The rotating speed can only be changed after the

machine is completely still.

5. Installation or removal of screwdriver bit

(see Figure D)

Caution: When installing or removing the bit, be sure

to confirm that the machine has been turned off and

that the battery pack has been removed.

The machine is designed with a quick-loading chuck

system;

When installing the screwdriver bit, pull the sleeve

forward and insert the screwdriver bit into the chuck.

Loosen the sleeve to fix the screwdriver bit.

When removing the screwdriver bit, pull the sleeve

forward and pull the bit out, and then release the

sleeve to reset it.

WARNING

Before starting the machine, make sure that the

screwdriver bit is fully fixed by the chuck.

6. Work light

Machine is equipped with the work light: when the

switch is pressed, the light will come on; when it is

released, light will go out.

7. Battery level display (Figure E)

When the machine switch is pressed, the battery

indicator will come on. The remaining capacity of

battery pack may be determined according to the

following table, and when the switch is released, the

indicator will go out.

Tightening torque is affected by many factors as

described below. After tightening, be sure to confirm

the torque with the torque wrench.

1) When the battery pack is about to run out

completely, the voltage will drop and the

tightening torque will also decrease.

2) The improperly sized screwdriver bit or sleeve

screwdriver bit may reduce the tightening

torque.

3) Bolt

Even if the torque coefficient and the bolt level are

the same, the tightening torque is different because

of the different diameters.

Even if the diameter of bolt is the same, the required

tightening torque is different depending on its toque

coefficient and its length.

4) The way the tool is held or the material on the

bolt will also affect the torque.

5) Operating at low speed will also reduce the

tightening torque.

WARNING

For the short screwdriver bit, use a magnetic

connecting rod (not included). When tightening the

screw, apply a little soap or other lubricant to the

thread to facilitate the operation.

QUESTION AND ANSWER:

1. Why does the machine not operate after the

switch is pressed?

A reversing yoke is located on the upper part of

switch. It is locked. Turn it to the position where the

rotation is in need, and then press the button to

rotate the machine.

2. Why does the hand drill stop when the screw has

not been tightened?

The machine has low-voltage protection. When the

level of battery pack is too low, the machine will not

work. Please confirm the level of battery pack.

The machine has temperature protection. When

the battery is working at full load for a long time,

the battery pack will overheat and the temperature

protection system will start to stop the machine.

Cool the machine to normal temperature before

resumption.

3. Why is the service life of same kind of battery pack

is different?

If a battery pack is left unused for a long time, its

service life may be shortened. This is the matter

of charging frequency. Repeated charging and

application may improve the situation. In case of

heavy work, the battery pack will run out soon. Do not

charge in a temperature below 0 °C or above 35 °C.

Otherwise, the performance of battery pack will be

affected.

MAINTENANCE

Be sure to pull off the plug before repairing or

replacing the machine.

The electric tool does not require additional

lubrication or other maintenance. Do not wash the

electric tool with the water or chemical cleaner. Wipe

it off with a dry cloth. Tool shall be stored under the

dry condit

ions and kept clean at the vent of motor. Try

not to use it in a dusty environment.

To prolong the service life of battery pack:

1) Store the battery pack below 26 °C after

charging it to 30%-50%.

2) Charge the battery pack fully once in less than 6

months.

51086C

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To protect the natural environment, please

recycle or dispose of the battery pack

properly. The battery pack contains a Li-

ion battery. Please consult the local waste

disposal department for the information

on recycling and/or disposal. Exhaust the

battery pack with the hand drill, remove the

battery pack, and wrap the pole port with

strong tape to avoid the short circuit and

leakage. Do not attempt to open or remove

any part.

The damaged machine, accessories and

packaging materials shall be classified in

detail for recycling in line with environmental

protection requirements.

All plastic parts are marked with material

identifications to facilitate the classification

and recycling.

DISPOSAL OF DISCARDED BATTERY PACK

ENVIRONMENTAL PROTECTION