AUS AUS-125-GHD User manual

GAS HAMMER DRILL
MOD: AUS-125-GHD
Handling Instructions
CAUTION:
Read through carefully and understand these instructions before use.

Technical Specifications:
Product Elements:
Drive Motor
Displacement (ml)
Engine Max Power/Speed
(kw/r/min)
Fuel Type Petrol/oil
Percussion Rate (1/min)
Rotary Hammer Speed (r/min)
Tank Capacity (L)
Max Drill Dia. (mm)
Lubricant Requirement
Net Weight
2-Stroke Petrol Engine (1E34F-F)
25.6
0.7 / 7500
30:1
4400
800
0.6
11/8
JASO FC / API1TC/ISO-LEGC2T1.LUBRICANT OIL
13 lbs.
The numbering of the machine elements refers to the illustration of the machine on the
graphic page.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
13mm quick - change key-less chuck (PRH30QCC use only)
SDS - plus chuck (PRH30QCC use only)
Tool Holder
Protective Cap
Protection Sleeve
Locking Ring
Winged Screw
Depth Guage
Spark Plug
Anti-Heated Shield
Shift Lever
Starter Handle
Cleaner Outer Cover
Red Button
Slector Knob
Auxiliary Handle
Choke Lever
Carburetor
Priming Bulb
Handle
Push Botton Switch
2

Labels
1. Thermal Risk Warning Label
2. Eye Protection Label
3. Instruction Manual Label
4. Earplug Label
5. Model Label with Trademark and Manufacturer's address
6. Fireproof Label
7. Information Label (see technical specification)
8. Gasoline with Mixture of Lubricant Oil
3

Noise / Vibration:
Description of Components:
Safety Instructions:
Applications:
DECLARED SINGLE NUMBER NOISE EMISSION VALUES in accordance with ISO4871
A-Weighted sound power level,L in decibels 106.1 dB(A)
A-Weighted emmission sound pressure level L at the operator's position, in decibels. 96.1 dB(A)
Values determined according to noise test code given in ISO 15744, using the basic standard ISO 3744
DECLARED Vibration EMISSION VALUES in accordance with EN 12096
Measured vibration emission value a: 20.0m/s
Uncertainly K: 0.95m/s
Value determined according to EN 28662-3
For breaking concrete and asphalt as well as rubble-laden ground, for demolishing
concrete, masonry and similar building materials (undisturbed and frozen ground)
etc., for ripping up roads and concrete, asphalt, tar as well as wood-block and
stone paving, for cutting off clay, loam, turf and salts, for breaking compacted or
tamped ground, for ramming in posts and earth rods.
The engine, which is flanged to the crankcase and is held in place by 3 screws,
drives the percussion system over a gear transmission and a connecting rod. The
engine torque is transmitted by means of a centrifugal clutch.
The centrifugal clutch interrupts the flow of the percussion system at low engine
speeds, thus allowing for a perfect idling of the engine.
The engine can be switched off with the stop button or the fuel tap.
The drive engine works according to the 2-stroke principle, and is started
mechanically by means of a recoil starter. The engine is air cooled and the air
is necessary for combustion is directed through the air filter.
For Your Safety
Working safely with this machine is possible only when the operating
and safety information are read completely and the instruction contained
therein are strictly followed.
Before using for the first time, ask for a practical demonstration.
Wear ear protection to prevent damage to your hearing.
Wear safety glasses and sturdy shoes. For long hair, wear hair protection.
Work only with close-fitting clothes.
4

1. General
1.1 Drilling and breaking hammers may only be operated by persons
who:
Are at least 18 years of age,
Are physically and mentally fit for this job,
Have been instructed in operating drilling and breaking hammers
and proven their ability for the job to the employer, May be
expected to carry out the job they are charged with carefully.
1.2 Drilling and breaking hammers are to be applied for their proper use.
Both the manufacturer's operating instructions and these safety instructions
have to be observed.
1.3 The persons charged with the operation of these hammers have to be
made familiar with the necessary safety measures relating to the machine.
In case of extraordinary uses, the employer shall give the necessary
additional instructions.
2. Operation
2.1 The function of operation levers or elements is not to be influenced or
rendered ineffective.
2.2 Before going on breaks, the operator has to switch off the engine and
has to place the drilling and breaking hammers in such a manner that it
cannot turn over.
2.3 Wear safety goggles in order to avoid injuries to the eyes.
2.4 Wear ear protection to prevent damage to your hearing.
2.5 We recommend wearing suitable working gloves.
2.6 Wear safety shoes while working with drilling and breaking hammers.
2.7 Drilling and breaking hammer should not be used in the potentially
explosive at mosphere (mine)
2.8 It should not be used under water.
2.9 The ear protector is recommended for the operator during an operation
2.10 Drilling and breaking hammer are not generally insulated for coming
into contact with electric power source.
2.11 Before starting hammer make sure that it does not involve a risk of
coming into contact with electric live cables, gas mains and water pipes.
2.12 Drilling and breaking hammer shall not be used in explosive
atmosphere unless specially designed for that purpose.
2.13 The inserted tool on heavy types of drilling and breaking hammer,
e.g. rock drills, is exposed to heavy strains and can after a long period of
use break due to fatigue.
5

2.14 Unexpected tool movement or breakage of inserted tool may cause injuries.
2.15 Unsuitable postures may not allow counteracting of normal or unexpected
movement of the drilling and breaking hammer. A working position shall be
adopted which remains stable in the event of a break of the inserted tool.
2.16 It is recommended to use dust collection devices or water flushing where
ever appropriate.
2.17 Drilling and breaking shall be isolated from the energy source before
changing an inserted tool.
2.18 Reaction torque may occur.
2.19 If the application for which the hammer is being used may result in the
reaction torque upon the operator, a second handle shall be used. The risk of
drawing in or trapping due to the rotating inserted tool should be taken care.
2.20 The risk of fire when spillage of fuel occurs should be prevented.
2.21 No smoking when filling with fuel.
2.22 Avoiding contact of fuel and oil with the skin.
2.23 Do not use in an unventilated environment, in closed pits, where the
surrounding hinders or prevents air circulation. The use of an exhaust hose can
in many cases be recommended. Care should be taken to minimize the risk of
fuel leakage during transport.
2.24 Specification of the fuel quality (90 gasoline; Lubricant Oil FC/2T)
2.25 Empty liquid petrol gas container shall be taken care of and sent back to
the retailer.
2.26 Drilling and breaking hammers are always to be operated with both hands
and on handles provided for this purpose.
2.27 When working with drilling and breaking hammers, especially when
carrying out drilling jobs, the operator has to have a firm stand, particularly
when working on scaffolding and ladders.
2.28 Drilling and breaking hammers are to be guided such that hand injuries
caused by solid objects are avoided. When carrying out demolition jobs at
elevated places, special care is required to prevent the machine or the operator
from falling.
2.29 When breaking connecting passages, make sure that there are no electric
wires or gas pipes. No one may stay in the room to which the passage is broken
through, as there is danger of injuries because of falling stones or tools.
2.30 During operation the tool holder must be closed. Tools and tool holder
must be checked for wear in order to guarantee proper functioning of holder.
2.31 The operation of this machine may cause broken-off pieces to be flung
away. Therefore, during operation, no one except the operator is to come near
this machine.
2.32 Switch off the engine of drilling and breaking hammers before changing
tools.
6

2.33 The tools always have to be in perfect conditions.
2.34 Do not smoke or handle open fire near this machine.
2.35 The tank lid must fit tightly. Shut fuel cock if available when stopping the
engine. For long distance transports of machines operated by fuel or fuel-
mixtures, the fuel tank has to be drained completely.
2.36 Stop engine before filling fuel tank. When refilling fuel tank, do not allow
fuel to come into contact with the hot parts of the engine or spill onto the
ground.
2.37 Make sure that sufficient fresh air is available when operating drilling and
breaking hammers with combustion engines in enclosed areas, tunnels, adits,
and deep trenches. For this particular use we offer drilling and breaking
hammers with elect rive drive.
2.38 Do not operate this machine in areas where explosions may occur.
2.39 Changing the tool (SDS-plus)
note: It is a characteristic of the system that the SDS-plus tool moves freely.
This produces a radial eccentricity when the machine is running at no-load
speed. This does not affect the accuracy of the drilled hole as the bit is
automatically centered during drilling. The tool holder is maintenance-free. The
dust cap prevents drilling dust from entering the machine during operation.
Make sure that the dust cap is not damaged when inserting the tool.
2.39-1 Inserting tools:
Clean and lightly grease tool shank before inserting. Twist the tool into the tool
holder and push it in until it engages. The tool shank locks in position
automatically. Pull the tool to check if it is locked correctly.
2.39-2 Removing the tool:
Push back the locking sleeve of the tool holder and remove the tool.
7

2.40 Mode Selector Knob:
The mode selector knob may be set only when the machine is switched off.
Press the release button on the mode selector knob and move the knob to the
desired position.
2.41 Removing the Replacement Drill Chuck:
(Fig.1) A
Danger of injury! Before removing the replacement drill chuck, always remove
the tool or bit.
Grasp the locking ring 6 of the SDS- plus replacement drill chuck and pull
forcefully in the direction of the arrow. The replacement drill chuck comes off.
Attaching the Replacement Drill Chuck
For drilling in steel or wood, for driving screws and cutting threads.
For hammer drilling in concrete and stone.
For adjusting the chiseling position(Vario-Lock)
For Chiseling
8

(Fig.2)B
Grasp the quick clamping replacement drill chuck with the whole hand. Place it
with a twisting motion on the chuck holder until it can clearly be heard to latch.
The replacement drill chuck locks itself. check locking by pulling on the
replacement drill chuck. Make replacement in a corresponding manner.
3 Safety Checks:
3.1 Drilling and breaking hammers may only be operated with all safety devices
installed.
3.2 Before starting operation, the operator has to check that all control and
safety devices function properly.
3.3 Before starting operation, the overload clutch of drilling hammers has to be
checked for proper functioning.
3.4 In case of defects of the safety devices or other defects reducing the
operational safety of the drilling and breaking hammers, the supervisor has to be
informed immediately.
4 Maintenance:
4.1 Only use original spare parts. Modifications to this machine, including the
adjustment of the maximum engine speed set by the manufacturer, are subject to
the express approval of HUASHENG. In case of nonobservance all liabilities
shall be refused.
4.2 Stop engine and pull off spark plug cap (if available) before carrying out
maintenance jobs, to avoid unintentional starting of the machine. Deviations
from this are only allowed if the maintenance job requires a running engine.
Warning: Take care when checking the ignition system. The electronic
ignition system produces a very high voltage.
5 Transport:
When being transported on vehicles, precautions have to be taken that these
hammers do not slip or turn over.
Please also observe the corresponding rules and regulations valid in your
country.
Preparation before start:
1. Read safety instructions at the beginning of this manual.
2. For new or long storage machines, oil sealed in the cylinder must be removed
first. The removing method: Take off the spark plug, use the lift thumb to stop
the spark plug hole and pull the starter with strength to spray the oil out.
9

10
3. Check the sparks of the spark plug. Normally the sparks should be blue.
4. Check if the air cleaner is clean. Dirty air cleaner will influence the volume of
incoming air that can cause the bad performance of the engine.
Start:
1. Adding fuel This gasoline engine is the type of single-cylinder and two-
stroke. The fuel is the mixture of NO. 90 gasoline and two-stroke automobile oil
that cannot be replaced by any other kind. The ratio between gasoline and oil is
25-30 :1. One fuel adding bottle is supplied.
It has scales for the conveyance.
2. Regulate the choke to close
position in winter and at the first
time to full open position when
the engine is hot. (Fig. 3)
Pull the starter lightly for 3-5
times to make the fuel into the
cylinder. Then pull it fast to start
the engine. Note: After start, the
start rope should be contracted
back slowly with hand's help. If
the rope contracts back fast, it may cause damage of the starter. After start, put
the choker slowly to full open position. Regulate the fuel handle to a proper
position to run at low speed for 3.5 minutes, and then make the machine
working. New machine should not work at full open position within the first 4
hours, thus enabling the engine to have a good match and do reliable job.
Stop of Engine:
Move the throttle lever to the slow speed position, and operate the engine for its
cooling at time 2 or 3 minutes.
Keep pressing the stop button until the engine stops completely.
The sudden stoppage of the engine during high-speed operation may cause the
engine trouble; therefore, avoid it except for the emergency case.

11
Technical Maintenance and Long Time Storage Checks:
According to the conditions and frequency of use, drilling and breaking
hammers have to be checked for safe operation at least once a year by skilled
technicians, and have to be repaired if necessary.
1. Fuel System Maintenance:
Water or dirt in fuel is one of the main causes of the engine trouble, clean the
fuel system regularly as mentioned below.
Residual fuel remaining in the fuel tank and carburetor for longtime gum and
clog the fuel system, thus causes the engine not to work properly, so all of the
fuel should be discharged if the machine isn't used after one week.
2. Air Filter and Plug:
Clean the filter after every day
operation: Dirt adhering to
sponge reduces the engine
power. Dry the filter before
reinstalling. Clean stains or
carbon off the spark plug and adjust
spark gap to 0.8 9 - 0.9mm (Fig.4)
The plug model of this machine is L8RTC. Do not use other models. If it is
necessary for change, you may buy it from local agricultural department or plant
protection department.
3. Maintenance Schedule:
Check all external screw connections for tight fit approx.
8 hours after first operation.
Component Maintenance Work Maintenance
Interval
Air Filter Check for external damage and tight fit.
Check tank lid for tight fit. Replace if
necessary.
Check Bowden cable for smooth running.
Checking of electrical cables and electric
insulation for wear and tear and replace it
if necessary.
Daily
Miscellaneous
Fuel

Tools
Air Filter
Cylinder
Ignition
Check shafts and cutting edges- if
necessary sharpen, re-forge or replace
Check filter cartridge, clean or replace
if necessary
Cooling fins dirt-free - if necessary
clean dry
Clean spark plug, check spark plug gap
Check tool holder for wear- replace
if necessary
Re-grease via grease nipples
Re-grease crankshaft drive
Check anti-fatique shaft bolts for tight
fit - retighten if necessary - 75Nm.
Weekly
20 hours
80 hours
600 hours
Daily
Monthly
Miscell-
aneous
4. Long Time Storage:
Clean the machine and apply antirust oil to metal parts.
Remove the spark plug and pour 15-20g of 2 stroke engine oil into the cylinder
through the spark plug pole. Pull the starter handle 4-5 times to distribute the oil
inside the engine. Pull the handle slowly until the piston reaches the top of its
travel and leave it there, then install the spark plug.
Remove the chemical tank, clean the dust gate and inside and outside of chemical
tank, then install the tank and leave lid loose.
Discharge fuel in the tank and carburetor entirely.
Cover the machine with plastic dustcoat and store it in a dry and clean place.
Trouble Shooting:
1. Engine fails to start or hard to start.
Problem Cause
1. Pole wet
2. Covered with carbon
3. The insulation damaged
4. Spark gap incorrect
5. The poles burned
Dry It
Clean and carbon
Replace
Replace
Remedy
Adjust 0.8 - 0.9 mm
No
Flash Spark Plug
12

No
Flash
The Compression
ratio is fine
1. The wrap of wire damaged
Problem Cause
1. Too much fuel in cylinder
4. Water in fuel
3. Engine overheat
1. Cylinder and piston ring
wore or tore.
1. Mixed gas (fuel) thin
2. Water or dirt in fuel
5. The carbon clogs muffler
2. The plug loose
2. Cylinder covered with carbon
2. Insulation of coil bad
1. The filter plate clogged
3. The wire of coil broken Replace
2. Air passes through the
connection of carburetor
4. The electronic firing unit
defective
1. No fuel in tank
3. Oil bad
1. Fuel bad
2. Carbon in cylinder
4. No connection with hose
2. Filter gauze clogged
Check & Replace
3. The air hole of the tank
clogged
3. The running parts wore
and tore
Replace
Clean
Tighten
Stop the engine
and cool it
Replace
Replace
Clean
Replace them
Adjust the carburetor
Tighten it
Clean
Remedy or Replace
Remedy
Drain
Refill with fresh fuel
Fuel
Use 2-T engine oil and
adjust the mix ration
Clean
Correctly assemble the
machine
Clean
Replace
Clean
Magneto
Compression
ratio & fueling
well
Fueling well but
compression
ratio bad
Engine
Overheats
Normal
Carburetor
not
Fueling
Engine noisy
or
knocking
2. Engine lacks power
13

3. Engine stops while running
4. Engine hard to stop
5. Ramming Abnormality
Problem Cause Remedy
Engine Stops
Suddenly
The Engine Stops
Slowly
1. The lead wire of plug loose.
2. Piston bitten
3. Plug covered with carbon
4. Fuel used up
1. Carburator clogged Clean
2. The air hole in the tank
clogged
Replace firmly
Change or remedy
Clean plug
Fill the fuel tank
Clean
3. Water in fuel Refill with fresh fuel
Problem Cause Remedy
Throttle handle put to
the lowest position,
the engine still runs
The throttle cord is short
or piston of carburetor is
blocked
Adjust the cord
or remedy the
carburetor
Problem Cause Remedy
Lacks power or
work abnormality
1. Clutch damaged
2. Crankcase cpl. problem Change or remedy
3. Grease lack Re-grease
4. Something gets in
percussion system
5. Cushion damaged
Replace
Clean
Replace
Environmental Protection
Recycle raw material instead of disposing as waste.
The machine, accessories and packaging should be submitted for
environment-friendly recycling.
These instructions are printed on recycled paper manufactured without
chlorine.
The plastic components are labeled for categorised recycling
14

15

1E34F - E GASOLINE ENGINE
16

17
GAS HAMMER DRILL
MOD: AUS-125-GHD

NUM DESCRIPTION QTY NUM DESCRIPTION QTY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3
1
2
1
4
1
1
1
1
2
4
1
1
1
1
1
1
1
1
1
1
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
PROTECTIVE CAP
RETAINING RING 19X2
PROTECTION SLEEVE
THRUST RING
HOLDING PLATE
BALL (C7 14)
SPRING
SCREW (ST1.8X78)
GEAR HOUSING
NEEDLE BUSHING HK0709
LOCKING PLATE
OIL SEAL (24X35X7)
SCREW (ST4.2 X13)
NEEDLE-ROLLER BEARING
RED BUTTON
SPRING
DRIVER PIN
O-RING
SLECTOR KNOB
RETAINING RING (29X2.5)
SUPPORTING DISC
COMPRESSION SPRING
CYLINDER GEAR
RETAINING RING (29X1.5)
CLUTCH DISC
RATCHET SLEEVE/SDS-PLUS
PIN
SCRAPOR
BUSHING
IMPACT BOLT
GUIDE BUSHING
O-RING
O-RING
DAMPING BUSHING
RETAINING RING (27.5X2)
STRIKER
O-RING
PISTON
SHIM RING
SEAL RING
BUSHING
HDDING FORK
INTERMEDIATE FLANGE
PISTON PIN
BUSHING WASHER
BUSHING ASS'Y
SPRING
NEEDLE BEARING
CYLINDRICAL GEAR
NEEDLE BEARING (K15)
DRIVE END SHIELD
NEEDLE BUSHING
SPRING CLIP
SHIFT FORK
BALL BEARING (699)
TOOTHED SHAFT
OIL SEAL
BALL BEARING (6804)
BALL BEARING (6204)
CIRCLIP
PIN
CLUTCH DRUM
SCREW (M8 X 25)
GASOLINE ENGINE
THROTTLE CABLE ASS
SUSPENSION UNIT 1
SUSPENSION UNIT 2
HEAT SHIELD
HANDLE
SHIFT LEVER
PIN
PLATE WASHER
SPRING
CLIP
SCREW (ST4X25)
STUD
NUT
NUT
SPRING WASHING
PUSH BUTTON SWITCH
HOUSING COVER
SCREW (ST4X25)
SCREW (M5X20)
TUBE
AUXILIARY HANDLE
NUT
SUPPORT BLOC
CLAMP HOLDER
WINGED SCREW
NUT
T-BOLT
CLAMP BAND
DEPTH GUAGE
18

Service Center:
6640 Old Chaney Highway
Orlando, FL 32807
[phone]
Fax: [phone]