Z 1 C - D Y 3 4 - 2 8 D
INSTRUCTION
DOUBLE INSULATION
ELECTRIC ROTARY HAMMER
8
1
1 Front cover
2 Steel ring
3 Spring pocket
4 Spring
5 Hammer head sleeve
6 Screw
7 Spring washer
8 Flat washer
9 Felt washer
10 Tray
11 Steel ball
12 Retainer sleeve
13 Steel ball
14 O ring
15 O ring
16 Shock hammer
17 Steel ball
18 Retaining ring
19 Rolling bearing
20 Piston sleeve
21 Flat key
22 Retaining ring
23 Shock piston
24 O ring
25 Cone gear
26 Steel ring
27 Retaining ring
28 Slide bearing
29 O ring
30 Piston pin
31 Level
32 Slide bearing
33 Retaining ring
34 Seat
35 Hammer pickaxe knob
36 Screw
37 Oil cap
38 Gear box
39 Cone gear shaft
40 Steel space ring
41 Rolling bearing
42 Washer
43 Washer
44 Friction plate
45 2# gear
46 Spring washer
47 Special nut
48 Rolling bearing
49 Middle cover
50 Felt washer
51 Rolling bearing
52 Rotor
53 Rolling bearing
54 Rubber sleeve
55 Stator
56 House
57 Brush holder
58 Screw
59 Carbon brush
60 Screw
61 Flat washer
62 Spring washer
63 Screw
64 Eccentric hollow shaft
65 Flat key
66 Rolling bearing
67 Clamp plate
68 Spring washer
69 Retaining ring
70 Screw
71 Spring
72 1# gear
73 Steel sleeve
74 Pin
75 Slide bearing
76 Flat washer
77 Screw
78 Spring washer
79 Handle
80 Switch
81 Special handle
82 O ring
83 Screw
84 Spring washer
85 Clamp plate
86 Screw
87 Cable clamp plate
88 Jacket
89 Screw
90 Cord
91 Handle cover
92 Screw
93 Auxiliary handle
94 Handle seat
95 Manche
96 Clamp plate
97 Square cap bolt
98 Position limit level
Part
Description
Q`ty
Part
Description
Q`ty
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4
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1 Drill
2 Dust cap
3 Locking sleeve
4 Front switch lever
5 On-off Switch
6 Electric cord
7 Main handle
8 Back switch lever
9 Auxiliary handle
10 Depth gauge
1 2
3
4
5
7
6
8910
SAFETY, USES AND MAINTENANCE INSTRUCTIONS
SAFETY INSTRUCTIONS
Warning! When using electric machines, basic safety precautions should
always be followed to reduce the risk of fire, electric shock and personal
injury, including the following.
Read al l these instructions before attempting to operate this product and
save these instructions.
For safe operation:
1. Keep work area clean
Cluttered areas and benches invite injuries.
2. Consider work area environment
Don't expose power machines to rain. Don't use power machines in damp
or wet locations. Keep working area well lit. Don't use power machines in
presence of flammable liquids or gases.
3. Keep visitors away
Do not let visitors contact machine or extension cord. All visitors should be kept
away from work area.
4. Store idle machines
When not in use, machines should be stored in dry, high, or locked-up place,
out of the reach of children.
5. Dress properly
Do not wear loose clothing or jewelry. They can be caught in moving outdoors.
Wear protective hair covering to contain long hair.
6. Use safety glasses
Also use face or dust mask if cutting operation is dusty.
7. Don't abuse cord
Never carry machine by cord or yank it to disconnect it from receptacle. Keep
cord from heat, oil and sharp edges.
8. Secure work
Use clamps or a vise to hold work. It's safer than using your hand and it frees
both hands to operate machine.
9. Disconnect machines
When not in use, before servicing, and when changing accessories such as
blades, bits and cutters.
10. Outdoor use extension cords
When machine is used outdoors, use only extension cords intended for use
outdoors and so marked.
11. Avoid unintentional starting
Don't carry plugged-in machine with finger on switch. Be sure switch is off
when plugged in.
12. Never operate the tool if any of the following problems are noted:
If the Hammer is too hot, if insulation is torn, frayed, or missing, if the plug is
broken, if there is a poor connection at the socket or at the connector, if the
tool runs abnormally or if there is excessive sparking.
The tool must be repaired immediately if any of these conditions are observed.
Further use of the tool without repair is prohibited.
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49
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51
83
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92
82 81
91
90
88
89
80
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86
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77
76
78
4
8
97
95
96
94
93
98
65
69
Operation instructions
WARNING:
1. Before starting work, always examine the working area for concealed electric
lines, gas and pipes, e.g. with a metal detector.
2. Always use the correct supply voltage
The voltage of the power source must agree with the information on the
nameplate of the machine.
1. Changing the tool
The SDS-plus tool is designed to be freely movable.
Inserting:
Clean and lightly oil the tool
before inserting. Insert the
dust-free tool into the tool
holder with twisting until it
latches. The tool locks itself.
(Fig.2)
Removing
Push back the locking sleeve of the tool mount and remove the tool.
2. Putting into operation
Switching on: Press ON/OFF Switch
Switching off: Release ON/OFF Switch
3. Auxiliary handle
For safety reasons, the hammer drill may only be operated using the
auxiliary handle.
Rotating the auxiliary handle to the desired position reduces operator fatigue
and enables the operator to adopt a safe stance.
To ratate the auxiliary handle, first release the handle by turning it
counterclockwise. Then retighten the auxiliary handle.
4. Setting the depth gauge
Loosen the auxiliary handle attachment and place
the straight part of the depth gauge in the hole.
Adjust the depth gauge and retightenthe auxiliary
handle attachment.
5. Built-in Dust Protection
The dust protection cap prevents to a large extent
the entry of drilling dust during operation. When
inserting the tool, take care of that the dust
protection cap is not damaged. (Fig.3)
Replace a damaged dust protectioncap
immediately.
2
3
Within a half-year from the date of purchasing the machine, we have three
assurances (Based on invoice or delivering bill's date). Normal or improper
use of the machine is not covered within this guarantee.
Troubleshooting guide
PROBLEM
PROBABLE CAUSE
1.Electric motor
does not rotate
switch on power
supply
1. Breakage of power
supply
2. Poor contact of no
effect of the switch
3. Armature winding or
field winding has been
burnt
4. Breakage of the stator
winding
5.Burshes are worn out
2. Abnormal
noise and
electric motor
does not
rotates or
ratates very
slowly.
1. The contact of the
switch has been burnt.
2. Mechanical part is
blocked.
3. Overload of electric
motor caused by
excessive drilling depth
or pressure.
4. Partial short circuit or
open circuit of armature.
5. Lower voltage of main
power.
1. Inspect power supply
2. Repair or change the switch
3. Change the armature
winding or field winding.
4. Weld again if terminal
the winding
5. Change the carbon brushes
SUGGESTED CORRECTIVE
ACTION
1. Repair or change the switch.
2. Check mechanical part.
3. Reduce drilling depth or
pressure. Decrease force.
4. Repair or change the
armature.
5. Adjust the voltage of main
power
1. Overload, dull bit
2. Damp winding
3. Electric motor can not
run freely because of
incorrect fitting
4. Decrease of voltage
3.The surface of
the gearbox
becomes over
hot.
1.refuce load, sharpen bit
2.Dry the winding
3.Check the armatrue to
the see if it is blocked or
rubs the core.
4.Adjust the voltage of
main power.
4.Round sparkle
or bright sparkle
of commutator
1. Short circuit or
brealage of armature
2. The surface of the
armature is not
smooth and clean
1.Repair the armature
2.Free from foreighn objects
to smooth the surface of
the armature
Guarantee
6
3
6.Mode Selector Switch
Hammer drilling Drilling Chiseling
7.Drill with cylindrical shaft
Steel, wood and plastic can
be drilled with the ring gear
chuck and the cylindrical
shaft.(Fig.5)
WARNING:
When hammer drilling you will require a low presure. too much pressure will
place unnecessary load on the motor. Check the drill bits regularly. Resharpen
or replace blunt drill bits.
Inspection and Maintenance
WARNING: Remove the mains plug from the socket before carrying out anywork
on the device.
1. Changing the carbon brushes
Changing both carbon brushes at the same time----the machine brushes must
be checked up periodically. Seriously worn or torn carbon brushes whose
length is near the limited line must be changed. Always keep carbon brush
clean and make sure it can move freely.
Unscrew the carbon brush cap with a screwdriver. Remove carbon brush and
replace with a new carbon brush. Tighten the carbon brush cap after checking
or replacing a carbon brush.
2. Always keep the device and ventilation slots clean.
Clean the tool holder.
3. Always check for obvious defects and repair as necessary.
The tool must be checked up regularly to see whether the cable is damaged,
whether the switch is working properly, whether the cord is short-circuited and
that all the moving parts are in good condition.
Warning:
1. Damaged tools must be sent to the specified repair centre Our company will
not be responsible for wrong use or repairs performed by a nonspecified expert.
2. The technical data and spare units may be changed as necessary upon further
development without further notification.
5
Front switch lever
4
Back switch lever
The electric hammer drill is a Class II insulation handheld electric tool that
applies advanced technology in its construction .It has been proven by IEC
international standard. The hammer drill is powered by series motors. It applies
SDS-Plus tool holder and with drilling, hammer drilling and chiseling functions
.It can be used in drilling concrete, rock, brick, metal and wood with high
speed and precision. It is an idea tool to increase installation efficiency for
some departments like pipes, machine tools and equipment.
Model No.
Max.
drilling
capacity:
Rated voltage
Frequency
Rated input power
Rated speed
Rated impactt rate
Weight
Outer size
ZIC-DY34-28D
¦ 28
¦ 16
¦ 40
120
60
900
750
2900
5
concrete
steel
wood
Main technical data
Characteristic and Usage
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