202401051124372976.pdf - 第18页
18 51091C/51090C OPERA TION GUIDELINE Before the use 1) Charging T his charger and machine shall be used together. Do not use o ther chargers. T he machine has a protection circuit. When the battery is low , the protecti…

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Machine part:
1. Auxiliary handle
2. Spindle lock
3. Inner pressure plate
4. External pressure plate
5. Battery level indication
6. Dust cover
7. Long handle switch
8. Guard
9. Guard
10. Wrench
Accompanied accessories:
Model Content Quantity
51091C/
51090C
5.0 Ah Li-ion battery
pack
1
4.0A charger 1
Charging duration of 5.0A battery pack: about 80min
Charging duration of 2.5A battery pack: about 40min
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 51091C 51090C
Voltage
No-loading speed 8000 rev/min
Spindle size M14
Wheel diameter 100mm 125mm
Guard diameter 112mm 138mm
Machine weight 2.3kg
Battery capacity 5000mAh
Recharge time 80min
1
2
3
4
5
7
6
10
9
8
18V

18
51091C/51090C
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.
ASSEMBLY
WARNING
When installing or replacing the accessories, turn off
the switch and remove the battery pack. Otherwise
the serious injury may occur.
1. Installation of side handle (Figure B)
NOTE
Be sure to install the side handle securely before
operation.
Align the side handle with the threaded hole in the
gearbox and turn them clockwise until the side handle
is tightened;
Caution:
Please read the instruction
carefully before operating the machine.
B
C
fully-closed
cut off wheel grinding wheel
semi-closed
H
A
D
2
3
1
E
1
G
1
F
1
2
3

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2. Installation of shield and wheel (Figure C)
WARNING
The cut-off wheel is equipped with a fully-closed shield
and the grinding wheel blade is equipped with a semi-
closed shield. Moreover, the diameter of wheel shall
match that of shield.
Installation or removal of shield (see Figure D)
WARNING
When the tool is used, the shield shall be mounted on
the tool and the closed side of shield shall always face
the operator!
Installation of shield:
Step 1: open the shield lock (1);
Step 2: Align the bump (2) on the shield with the notch
on the gearbox;
Step 3: Press down the shield until the shield is
inserted into the gearbox, and the bump (2) is engaged
in the groove on the gearbox (3);
Step 4: Rotate the shield between the output shaft and
the operator. Select an appropriate angle, and then
lock the buckle (1).
Adjustment of shield: (Figure E)
When the shield is delivered, it has been pre-adjusted
to a position where it can be tightened. If the shield
becomes loose after a period of use, tighten the screw
(1) in the figure with the shield tightened. Removal of
shield:
In reverse order of installation: first loosen the buckle,
rotate the shield, and align the bump on the shield
with the notch on the gearbox and pull out the shield
vertically.
Installation and removal of wheel (see Figure F.G.H)
WARNING
When the tool is equipped with a wheel, be sure to use
the wheel shield. The wheel may be crushed during
use. The shield may help reduce the risk of personal
injury.
Installation of wheel:
Step 1: Turn off the switch and pull out the battery
pack
J
K
1
2
L
M N
inner pressure plate
external pressure plate
The thickness of disk is greater than 3MM
inner pressure plate
external pressure plate
The thickness of disk is less than 3MM
I