EGAmaster Aqua Master 79908 User manual

HAMMER DRILLS
OPERATING INSTRUCTIONS
GUARANTEE...................................9
COD. 79908

2
OPERATION AND MAINTENANCE MANUAL
Operating pressure 90 PSI max. 6 bar
Air connection R 1/2” female R 1/2“
Motor output 1.61 HP 1,5 kW
Air consumption 21 cfm 1,5 m3/min
I/D of hose 0.51 inches 13 mm
Free speed 250 rpm 250 1/min
Speed under load 150 rpm 150 1/min
Percussion drilling under load 0-2500 blows/min 0-2500 Schläge/ min
Drilling range in concrete 0.4724 – 1.1968 inches dia. Ø12- 50 mm
Drilling capacity in concrete of medium
hardness
0.7874 dia. =
7.078 cu. in =
14.56 inches/ min
Ø20 mm= 116 cm3/min
= 370 mm/min
Optimum drilling performance in concrete 0.4724 -1.5748 inches dia. Ø20- 40 mm
Drilling in wood (with quick-release chuck) 0.3937 – 1.2598 inches dia. Ø10-32 mm
Motor oil capacity 3.05 cu.in. 50 cm3
Weight (without hoses) 29.32 lbs 13.3 kg
Dimensions (L x H x W) 25.19x4.92x10.83 inches 640 x 125 x 275 mm
Tool holder SDS Max
Sound level 90.4 dB (A)
Vibration measurement 9.2 m/s2
Safety clutch for protection against overloading and accidents
Sealed Gears with permanent lubrication (maintenance free)
Adjustable side handle with depth gauge and water ushing.
Supplied kit: 1 carrying case, 1 dust guard, 1 oil ampul (50 cc)

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SAFETY INSTRUCTIONS
Any power tool can be dangerous.
Please follow these simple procedures. They are for your protection.
Wear goggles ( chips – risk of injury)
Wear gloves (cutting damages by sharp edged work pieces)
Wear safety shoes
Wear protective clothing.
Remove rings, watches, ties etc. that could be torn by the machine.
Dress properly. Do not wear loose clothing or jewellery, it can be caught in moving parts.
Follow the general current and appropriate Accident Prevention and Safety Procedures.
Never work under the inuence of alcohol, drugs or stronger medication.
Always make sure that you have a safe foothold.
Maintain a proper footing and balance at all time. Never work with the machine while standing on a ladder or
leaning against a scaffold.
Secure the working place well. Use clamps or a vice to x the work piece. This is safer than using hands and clears
both hands for operating the machine.
Hold the machine tight during operation.
Keep your working area clean and uncluttered.
Keep children away and avoid other persons to come into contact with the machine.
Switch off the machine if it stops - for any reason - to avoid the unexpected starting in uncontrolled condition.
Do not operate the tool if it is damaged, improperly adjusted or not completely and correctly assembled.
Check hydraulic hose for damage.
Avoid sparks in hazardous environment - created by the tool. Always ush material and saw blade for cooling with
sufcient water during working.
Do not employ machines by excessive force. Their performance is better and safer, if they work at the prescribed
speed.
Check damaged parts.

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Before using the machine, damaged parts or protective devices should be carefully checked to make sure they work
soundly and full the designated function. Check alignment, connections and attachment of moving parts. Also check
if parts are broken. Parts or protective devices that are damaged should, if nothing else is mentioned in these operating
instructions, only be exchanged or repaired by qualied personnel. The same applies to defective switches and valve
triggers. If the machine cannot be switched on or off with the valve trigger, it should not be used.
The use of other accessories, or other additional items than recommended in these operating instructions, may
include the risk of bodily injury.
Only operate the tool after a thorough training or under supervision of a trainer.
Never exceed the maximum operation pressure.
Follow the valid national provisions in the country of application.
ATTENTION! Never use the hydraulic hose as a lifting handle!
USE
INTENDED USE
The machine is designed for drilling into concrete and masonry. The machine is intended to be used by professional
operators. Only authorized and trained personnel may use, maintain and repair the machine. The personnel has to be
especially instructed on the potential dangers. The working environment can be: construction site, factory, renovation,
rebuilding and building. Manipulation or modications to the machine are not allowed. Observe the instructions
regarding the operation, care and maintenance in the operation instruction. Dangers can come from the machines and
the auxiliary materials, if improperly handled or used.
IMPROPER USE
Any use deviating from the intended use as described is considered to be improper use. Working without personal
protection equipment.
Danger Zones
Operational
condition
--------------------
Life phase
Normal function Malfunction Improper use Expected use
Transport
Transport of
the machine in
an inoperable
condition
Drop of the
machine
Transport of the
machine in an
operable condition
unknown
Operation
Machine only works
with actuated valve
Machine runs
without actuated
valve
Switch is blocked in
actuated condition unknown
Machine moves the
tool Tool blocks unknown unknown
Maintenance Operation at a
maintenance unit
Breakdown of the
machine unknown unknown

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OPERATION INSTRUCTIONS
Before using the machine:
Open oil plug item 4 and pour in oil from oil ampul in the machine box.
Do not exert undue pressure on the machine. This will not increase its performance. Just position the bit and guide it
into the hole.
Placing the machine into the box
Make sure the adjusting sleeve is locked at the setting “rotary hammer drilling”.
Side handle
This can be turned through 360°and clamped in any desired position.
Depth gauge
Press unlock button, adjust the depth gauge and release button.
Lubrication of shank end
Occasionally clean shank ends and spray sparingly with lubricant sprayer. Do not spray into the chuck.
Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5
Fig. 1: Drilling in explosive surroundings
The drill must be water cooled to avoid sparks.
Fig. 2: Rotary hammer drilling
Pull back the adjusting sleeve and turn it clockwise to lock. Do not use the quick-release chuck at this setting because
drills and tools will be damaged.
Fig.3: Pull back the locking sleeve and insert the drill. Turn the locking sleeve until it snaps back into the outset
position. Press the machine against the work surface before switching on otherwise the tool will not hammer. If the drill
sticks in the hole, withdraw and reinsert it several times when drilling.

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Fig. 4: When starting to drill into brittle materials (tiles etc), unlock the adjusting sleeve to “rotary drilling only”, hold
the machine by the adjusting sleeve and press it slowly against the work surface until it hammers weakly. Hold and
continue to drill the hole. Switch off the machine briey and relock the adjusting sleeve.
Fig. 5:Rotary drilling only
Unlock the adjusting sleeve. The quick-release chuck is used at this setting. Commercially available twist drills can be
used in the quick-release chuck.
OPERATING INSTRUCTION FOR UNDERWATER TOOLS
Before working under water
• Check the machine with regard to leakages
• Check the machine regarding functioning of all parts (drilling, striking, actuating valves, etc.)
After having worked under water
• Clean the machine
• Dry the machine by blowing out with compressed air
• Spraying of all moving parts with Multi-Oil-Spray (or similar).
For additional information refer to the machine specic operation and maintenance manual as well.
MAINTENANCE INSTRUCTIONS
Our pneumatic motors are designed for an operation pressure of 4 -6 bar (65-90 PSI). Service life and performance of
the machines are decisively determined by:
a) The air purity
Blow the air hose clear before connecting it to the machine. Install dirt and water
separator upstream of the machine, if it is not possible to prevent the formation of rust and water condensation in the
air distribution lines.
b) The lubrication conditions and maintenance see „Maintenance of pneumatic tools“
The proper quantity of grease is very important with regard to good lubrication and low heat generation. The grease
quantities listed in the following table must be complied with:
Grease Quantity in grams
In the crank casing 5
In the bevel gears 5
In the spur gears 10
MAINTENANCE OF HYDRAULIC TOOLS
Only proper maintenance can ensure constant performance, reduction in wear and thus, a decrease in operating costs
and an increase in service life.
Our hydraulic tools are equipped for an operating pressure of up to 100 bar. Regulator setting for a lower operating
pressure is possible.
The tools should not run empty, because this results in heat and higher wear of the output section and the tool
holder. The hydraulic oil should be clean. This is ensured by professional equipment. Clean the connecting parts before
connecting the hydraulic hoses.
For an economic use of the hydraulic tools the required sizes of pipe, ttings and hoses have to be adjusted.
Proper greasing of the gear and the tool heads is a must. See the operation manual on this.
After nishing the work the tools have to be cleaned and protected against corrosion.
Visible grease nipples are provided for regular lubrication of the gears with a grease gun, or the gearboxes have a
long term greasing.

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Note the following for grease lubrication: Every 60 hours of operation check striking mechanism, friction bearings
and antifriction bearings; if necessary, grease them. Every 300 hours of operation grease the gears and antifriction
bearings anew. In the case of impact wrenches, use a grease gun to grease the anvil guide before beginning daily work,
or every 6-8 hours.
All inner parts of the drive (tool holder must be lubricated before storing for longer periods of time in order to prevent
rusting. It is recommended to check the vanes and bearings at regular intervals. Store tools in dry rooms only.
Grease to be used:
In general: SAE 5 W to SAE 10
For impact wrenches without gear only SAE 5 W.
For saw chain greasing on chain saws: Machine oil with adhesive additive, viscosity: c ST 49-55’ (6,5-7,5 E)/ 50°C.
Greases ( free of resins and acids) Multi-purpose greases for antifriction
and friction bearings
Special greases for high-speed miter
gears
Designation in accordance with DIN
51502
Consistency class (DIN 51818)
Saponication type Dripping point
Worked penetration Temperature range
K L 2 k
2
Lithium
185 °C
265 to 295
-25°C to + 125°C
G 000 h
00
Sodium
145°C
400 to 410
-25°C to + 100°C
Oiler types used on or with our tools:
Oiler to mount on the machine or connect in the hose line
Setting the oiler: The adjustment screw item 2 is visible after removing the
screw plug item 3. Theoil supply is decreased by tightening the screw, and by
loosening the screw, more oil gets into the machine. In most cases it is su󰀩cient
to tighten or loosen the screw by ¼ or ½ of a turn. When plugged, clean
borehole (dia. 2 mm) with wire.
Correct setting; When under pressure and with the ller screw (item 4) open, the
oil must bubble slightly.
The llint lasts for approx. 8 operating hours.
Line oiler
For stationary pneumatic machines and motors, the lubrication is carried out by
lined-up oilers for horizontal or vertical installation.
Setting of oilers: Shut o󰀨 air supply. Open plug item 3.
Loosen visible lock nut item 5 with a socket wrench.
Using a screw driver turn back the tightened screw plug item 4 by ¼ to ½ of a
turn and then lock again.
No oil is to get into the borehole “a” when lling. Close plug item 3 and open the
air supply.
Correct setting: A piece of paper held for a short time in front of the outlet must
be coated with oil without drops forming.
Transparent oiler
For installing in permanently equipped workplaces
(especially for type using service units – see accessories list)
The transparent supply containers allow for good checking as well as for
good setting possibility by means of a screw driver via a set screw with visible
dripping. (The set screw is above the lateral thread connection – turning to the
right for less oil; turning to the left for more oil) The setting (2 to 5 drops per
m³/min air consumption) is to be carried out when air is owing through, i.e.,
when the machine is running.

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SPARE PARTS AND ACCESSORIES
Only original spare parts may be used. There is no warranty for damages and liability is disclaimed, if non-original
spare parts and accessories are used.
The repairing of the machine is allowed authorized expert companies only.
The accessories applicable with our machine are listed in our brochure.
TROUBLESHOOTING
Problem Cause Remedy
aMachine does not start Air not connected Connect and open air line
bMachine rotates too slowly Operating pressure too low Increase operating pressure (on the
machine) to 6 bar
cGearbox makes strong noise -Contact authorized expert company
dOther problems -Contact authorized expert company
To guarantee the performance of the machine it is necessary to compensate the pressure under water. For every 10
meters of depth it is necessary to add one bar pressure to the compressor with respect to the indicated.