MACROZA Diamant D2 User manual

INSTRUCTION MANUAL
For your personal safety,
READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR
FUTURE REFERENCE.

2
Voltage 115V / 60Hz, 230V /50Hz
No load speed 4100/min
Power input 1800W
Max cutting depth 15~54mm
Max blade diameter 180mm (7 in.)
Net weight 7.7 kg (17 lbs.)
Groove width 5~47mm
SPECIFICATIONS
GENERAL SAFETY RULES
WARNING! Read and understand all instructions. Failure to follow all instructions
listed below, may result in electric shock, fire and / or serious personal injury. The term
“power tool” in all of the warnings listed below refers to your mains-operated (corded)
power tool.
SAVE THESE INSTRUCTIONS
Work area safety
Keep your work area clean and well lit. Cluttered benches and dark areas invite acci-
dents.
Do not operate power tools in explosive atmospheres, such as in the presence of
flammable liquid, gases, or dust. Power tools create sparks which may ignite the dust
or fumes.
Keep bystanders, children, and visitors away while operating a power tool.
Distractions can cause you to lose control.
Electrical Safety
Grounded tools must be plugged into an outlet properly installed and grounded
in accordance with all codes and ordinances. Never remove the grounding prong
or modify the plug in any way. Do not use any adaptor plugs. Check with a quali-
fied electrician if you are in doubt as to whether the outlet is properly grounded.
If the tools should electrically malfunction or break down, grounding provides a low resist-
ance path to carry electricity away from the user.

3
Avoid body contact with grounded surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric shock if your body is grounded.
Don’t expose power tools to rain or wet conditions. Water entering a power tool will
increase the risk of electric shock.
Don’t abuse the cord. Never use the cord to carry the tools or pull the plug from
an outlet. Keep cord away from heat, oil, sharp edges or moving parts. Replace
damaged cords immediately. Damaged cords increase the risk of electric shock.
When operating a power tool outside, use an outdoor extension cord marked
“W-A” or “W.” These cords are rated for outdoor use and reduce the risk of electric
shock.
Personal Safety
Stay alert, watch what you are doing and use common sense when operating a
power tool. Do not use tool while tired or under the
influence of drugs, alcohol, or medication. A moment of inattention while operating
power tools may result in serious personal injury.
Use safety equipment. Always wear eye protection. Safety equipment such as dust
mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate condi-
tions will reduce personal injuries.
Avoid accidental starting. Be sure switch is off before plugging in. Carrying tools
with your finger on the switch or plugging in tools that have the switch on invites acci-
dents.
Remove adjusting keys or switches before turning the tool on. A wrench or a key
that is left attached to a rotating part of the tool may result in personal injury.
Do not overreach. Keep a proper footing and balance at all times. Proper footing
and balance enables better control of the tool in unexpected
situations.
Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing
and gloves away from moving parts. Loose clothes, jewellry or long hair can be
caught in moving parts.

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Tool use and care
Use clamps or other practical way to secure and support the work piece to a sta-
ble platform. Holding the work by hand or against your body is unstable and may lead to
loss of control.
Do not force tool. Use the correct tool for your application. The correct tool will do
the job better and safer at the rate for which it is designed.
Do not use tool if switch does not turn it on or off. Any tool that cannot be controlled
with the switch is dangerous and must be repaired.
Disconnect the plug from the power source before making any adjustments,
changing accessories, or storing the tool. Such preventive safety measures reduce
the risk of starting the tool accidentally.
Store idle tools out of reach of children and do not allow persons unfamiliar with
the power tool or these instructions to operate the power tool. Tools are dangerous
in the hands of untrained users.
Maintain tools with care. Keep cutting tools sharp and clean. Properly maintained
tools, with sharp cutting edges are less likely to bind and are easier to control.
Check for misalignment or binding of moving parts, breakage of parts, and any
other condition that may affect the tools operation. If damaged, have the tool
serviced before using. Many accidents are caused by poorly maintained tools.
Use the power tool, accessories and blades etc., in accordance with these
instructions and in the manner intended for the particular type of power tool,
taking into account the working conditions and the work to be performed. Use of
the power tool for operations different from those intended could result in a hazardous sit-
uation.
Service
Have your tool serviced by a qualified repair person using only identical replace-
ment parts. This will ensure that the safety of the power tool is maintained.
-WARNING- To reduce the risk of injury, user must read instruction manual.

5
Symbols used in this manual
V……..volts
A……..amperes
Hz……hertz
W……..watt
~………alternating current
n0………no load speed
/min……..revolutions or reciprocation per minute
………….class II tool
SPECIFIC SAFETY RULES
Keep hands away from cutting area and blade at all times! Keep your second
hand on an auxiliary handle. If both hands are holding the saw, they cannot be cut
by the blade.
Do not reach underneath the work.
Hold tool by insulated gripping surfaces when performing an operation
where the cutting tools may contact hidden wiring or its own cord. Contact
with a “live” wire will make exposed metal parts of the tool “live” and shock the oper-
ator.
Always use blades with correct size and shape arbor holes. Blades that do not
match the mounting hardware of the saw will run eccentrically, causing loss of con-
trol.
Never use damaged or incorrect arbor flanges or bolts. The arbor flanges and
bolt were specially designed for your saw, for best performance and safety of opera-
tion.
Maintain a firm grip on the saw and position your body and arm in a way that
allows you to resist KICKBACK forces. KICKBACK forces can be controlled by the
operator, if proper precautions aretaken.
Do not use a dull or damaged blade.
Use only recommended blades, rated at the machine’s maximum rated RPM or
higher with correct arbor hole.
Tighten blade retaining bolt and all clamps before operating.
Check the inside surfaces of the arbor flanges as well as the sides of the blade for
freedom from any foreign matter.
Check the blade for cracks or other damage before operation. Replace cracked or
damaged blade immediately. Carry out a test run without load for at least 30 seconds
before use.
1.
2.
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5.
6.
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Never start the tool with the workpiece against the blade.
Allow the motor to achieve full speed before cutting.
Important: After completing the cut, release power switch and wait for coasting
blade to stop completely before putting the saw down
Never operate the tool in an area with flammable solids, liquids, or gases. Sparks
from the commutator/carbon brushes could cause a fire or explosion.
There are certain applications for which this tool was designed. The manufac-
turer strongly recommends that this tool NOT be modified and/or used for any appli-
cation other than for which it was designed. If you have any questions relative to its
application DO NOT use the tool until you have written the manufacturer and have
been advised.
Only use the machine for dry cutting in stone, concrete or masonry.
Use the auxiliary handles supplied with the tool. Loss of control can cause per-
sonal injury.
Use a residual current device (PRCD) (not included) to protect from current
surges.
Keep power supply cord clear from the working range of the machine. Always
lead the cable away behind you.
Immediately switch off the machine if unusual vibrations or if other mal-
functions occur. Check the machine in order to find out the cause.
Only use and store diamond blades according to the Manufacturer’s instruc-
tions.
Pay attention to the dimensions of the blades. The diameter of the center bore
must engage the arbor without play. If not use any necessary reduction pieces or
adapters (supplied with the blade) to ensure a proper fit.
Take care to avoid hidden electric lines, gas and water pipes. Check your
working area, e.g. with a metal detector before commencing work.
The dust that arises when working with this tool can be harmful to health.
Use a dust absorption system and wear a suitable dust protection mask and remove
deposited dust with a vacuum cleaner.
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18.
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21.
22.
23.
24.
25.

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FUNCTIONAL DESCRIPTION
Fig.1
Arbor lock lever (36)
Outer safety cover (13)
Adjustable cutting depth stop (16,17)
Arbor (7)
On/Off trigger switch (59)
Main handle (52,53)
Secondary handle (51)
Side handle (15)
Vacuum port
Blades available as option

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Electrical connection
The network voltage must conform to the voltage indicated on the tool name plate. Under
no circumstances should the tool be used when the power supply cable is damaged. A
damaged cable must be replaced immediately by an authorized Customer Service Center.
Do not try to repair the damaged cable yourself. The use of damaged power cables can
lead to an electric shock.
Intended use
This saw is designed exclusively for the creation of masonry grooves (parallel double cuts
in concrete, masonry and stone) for the purpose of placing water, electric or gas conduits.
The machine is designed to use a pair of parallel diamond blades (not included) with vari-
ous spacers to create different width grooves. This machine should not be used for cutting
other materials. The machine should not be converted or modified, e.g. for any other form
of use, other than as specified in these operating instructions. The user shall be liable for
damages and accidents due to incorrect use.
Extension cable
If an extension cable is required, it must have a sufficient cross-section so as to prevent
an excessive drop in voltage or overheating. An excessive drop in
voltage reduces the output and can lead to failure of the motor. The following table shows
you the correct cable diameter as a function of the cable length for this machine. Use only
U.L. and CSA listed extension cables. Never use two extension cables together. Instead,
use one long one.
Total Extension Cord Length (feet) Cord Size (AWG)
25 16
50 12
100 10
150 8
200 6
UNPACKING
Carefully remove the tool and all loose items from the shipping container. Retain all pack-
ing materials until after you have inspected and satisfactorily operated the machine.
NOTE: An appropriate dry diamond blade must be mounted to the machine
before operating. Refer to the section of this manual: “INSTALLING THE BLADE”

CARTON CONTENTS
1. Wall Chaser Machine
2. 10mm Hex Allen Wrench
DO NOT OPERATE THIS TOOL UNTIL YOU READ AND UNDERSTAND THE
ENTIRE INSTRUCTION MANUAL.
INSTALLING THE DIAMOND BLADE AND ADJUSTING THE GROOVE
WIDTH -ENSURE THAT TOOL IS DISCONNECTED FROM POWER SOURCE.
To install the blade:
Remove any accumulated debris
in the guards and around the
arbor.
Place the inner blade in position
directly on the arbor (7) making
sure the direction of rotation
arrow of the blade and the
arrow on the machine are in the
same direction.
Place as many spacers
(nos.3~6) as necessary to
achieve the desired groove
width. They are in sizes 15,12,
10 and 2 x 5mm.
Place the outer blade in position.
Place all of the remaining spacers on top of the outer blade (so that the arbor may be
tightened).
Place the outer flange (2) in position.
Screw in the arbor bolt (1) and press the arbor lock (36) to lock the arbor in position
(it may be necessary to turn the arbor slightly to allow the lock to engage).
Tighten the arbor bolt with the supplied 10mm hex wrench (61).See Fig.2.
NOTE: Use blades that have an arbor bore which can fit, and that are rated
for the machine’s maximum rated speed or higher.
REMOVING THE BLADE-DISCONNECT TOOL FROM POWER SOURCE.
Removal is the opposite of installing the blade.
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Fig.2
Arbor (7)
Blades
Spacers(3~6)
Arbor bolt(1)
Outer arbor flange(2)
Blades
1.
2.
3.
4.
5.
6.
7.
8.

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TO ADJUST DEPTH OF CUT- DISCONNECT TOOL FROM POWER SOURCE.
Adjust the depth of cut as desired. The machine
swivels against a spring and the depth stop limits
its lowermost travel.
To adjust the depth of cut:
Loosen the depth lock knob (16) enough for the
teeth of the depth stop block (17) to clear the
teeth of the depth stop track (21). While pulling
out slightly to clear the teeth, slide the depth stop
block up or down as desired and retighten. See
fig.3.
HOW TO USE THE SIGHTING NOTCH
To aid in free-hand cutting, sighting notches are
located at the front of the base plate(23). See fig.
4. There are various markings which correspond to
various groove widths created by the different
spacers. Not all possibilities are covered so always
use the Zero mark corresponding to the inner blade
as the baseline for aligning.
VACUUM DUST COLLECTION
There is a vacuum port provided on the blade cover
(13) to collect dust when operating. Always make
use of it. Simply attach the vacuum cleaner hose
to the vacuum port. See fig. 5.
STARTING AND STOPPING TOOL
Make sure that the power circuit voltage is the
same as that shown on the specification plate of
the machine and that switch is “OFF” before con-
necting the tool to the power circuit
Switching the machine on and off
Keep the machine steady during switching and dur-
ing use by holding the main handle and the sec-
ondary handle with both hands. See fig. 6.
Depth stop block(17)
Depth scale
Depth stop track(21)
Depth stop knob(16) Fig.3
Sighting notches Fig.4
Vacuum port
Fig.5
START
STOP
1
2
Fig.6
Lock Button

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To switch on:
This machine is equipped with a "LOCK-OFF" switch. To press the switch, you must first
press the lock button located at the top of the switch. Then the trigger switch will be free
to be pressed to start the machine.
To switch off:
Release the trigger switch to stop the machine. After the machine has been switched off,
the blade will still rotate for a time, take care that parts of your body do not come into
contact with the blade while it is still rotating !
ELECTRONIC OVERLOAD PROTECTION
If while cutting the machine reaches a load approaching overload level, the electronic
overload protection will kick in and shut the saw off. When this happens, release the trig-
ger and return the machine to its topmost position (out of the cut) and wait at least 3 sec-
onds before continuing.
HOW TO USE THE TOOL
Effective control of this powerful saw requires two-handed operation for maximum pro-
tection. Note there is a secondary handle as well as a side handle which has two choices of
position. Choose the handle according to the working conditions. Support the work prop-
erly and to hold the saw firmly WITH BOTH HANDS to prevent loss of control which could
cause personal injury. Always hold one of the auxiliary handles with the left hand and the
main handle with the right hand for proper hand support of the saw. Protect your eyes
from injury with safety glasses or goggles.
OPERATION
Adjust the groove width as desired.
Adjust the depth of cut.
Draw a cutting line before beginning cutting so it is easy to make straight cuts.
Place the machine in position on the workpiece.
While it is still raised and the blades are not yet in contact with the workpiece, press
the lock button squeeze the trigger and allow the machine to reach full speed.
Holding firmly with both hands, slowly lower the blades into the cut, continuing until
the depth stop is reached. Begin moving forward along the line of cut Take care that
the base remains firmly on the workpiece.
CAUTION: Take care not to cut in a curved line. This will likely shatter the
diamond blades causing a severe hazard.
When the cut is finished, raise the machine to the top of its stroke and allow the coast-
ing blade to come to a full stop before setting down.
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2.
3.
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5.
6.
7.

NOTE: Only operate the machine forwards relative to itself and never backwards. If you
cut backwards there is the danger that the machine might be accelerated out of the cut-
ting groove (recoil) and cause serious injury. Therefore, when making vertical chases from
top to bottom, the machine must be carefully held from the front.
CAUTION: Keep the cord away from cutting area to prevent it from becoming
entangled in the workpiece.
Do not force the cut. Let the saw do the cutting at the rate of speed permitted by the type
of cut and workpiece.
SHARPENING DULL DIAMOND BLADES
If a lot of sparks are seen while cutting, this is a sign that the blade is becoming dull. To
create better diamond exposure (sharpen), make several cuts in a special sharpening
stone for diamond blades or alternately use calcareous sandstone.
MAINTENANCE
KEEP TOOL CLEAN
Periodically blow out all air passages with dry compressed air. All plastic parts should be
cleaned with a soft damp cloth. NEVER use solvents to clean plastic parts. They could pos-
sibly dissolve or otherwise damage the material. Wear safety glasses while using com-
pressed air.
THE CARBON BRUSHES
The carbon brushes are a normal wearing part and
must be replaced when they reach their wear limit.
See fig.8. To replace: simply remove the brush caps
(49) and withdraw the old brushes (48). Replace
with new brushes (always replace as a pair) ensuring
that they align properly and slide freely. Then replace
the brush caps. See fig.9.
STANDARD ACCESSORIES
10mm hex wrench
If the replacement of the power supply cord is necessary, this has to be done by
the manufacturer or their agent in order to avoid a safety
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Fig.8
Fig.9
Brush Cap

L1
L2
M1
M2
BLACKBLACK
BLACK BLACK
BLACK BLACK WHITE
WHITE
MOTOR
CARBON BRUSH
SWITCH
OVERLOAD
AC
13
WIRING

14
01
02
03
04 05 06 03
36
37
38 39
41
50
48 49
51
29 30 31
33
34
35
32
32
07
08 09
11 12
13
10
11
28 27 26
24
25
23
22
21
17
16 15
20
19
09
14 09
40
42
T0 47
T0 60
T0 59
57
58
43
44 45
47
60
61
46
32
T0 56
T0 59
59
55 56
63
52
54
53
62
EXPLODED VIEW
Fig.10

Item No. Parts Name Q'TY
1 ARBOR BOLT M16x30 1
2 OUTER BLADE WASHER 1
3 5mm SPACER 49.6x22.4x5 2
4 10mm SPACER 49.6x22.4x10 1
5 12mm SPACER 49.6x22.4x12 1
6 15mm SPACER 49.6x22.4x15 1
7 SPINDLE SCM440 1
8 WOODRUFF KEY M5x12 1
9 SCREW M4x8 9
10 COVER PLATE 1
11 SCREW M5x15 2
12 BEARING SUPPORT PLATE 1
13 BLADE COVER 1
14 BLANKING PLATE 1
15 SIDE HANDLE M12xP2.0 1
16 DEPTH STOP THUMB SCREW M5x16 1
17 DEPTH STOP BLOCK 1
18 NA
19 SECURING BLOCK 1
20 SCREW M5x8 2
21 DEPTH STOP TRACK 1
22 DEPTH SPRING 2x 19x 85mmx10.5 1
23 BASE PLATE 1
24 SWIVEL AXLE 6x96.4 1
25 E-CLIP E7 2
26 ROLLER AXLE 6x39.4 4
27 E-CLIP E4 12
28 GUIDING WHEEL 32x 6x11 4
29 BEARING 6202 2RS 1
30 EXTERNAL CIRCLIP S-15 1
31 SPINDLE GEAR 41T 1
32 SCREW M5x20 5
PARTS LIST
Item No. Parts Name Q'TY
33 BEARING 608 ZZ 1
34 GEAR CASE 1
35 BEARING 6201 2RS 1
36 SPINDLE LOCK 1
37 FAN SHROUD 1
38 ARMATURE 1
39 BEARING 6200 ZZ 1
40 THRUST SPACER 1
41 STATOR SCREW M5x60 2
42 STATOR 1
43 MOTOR HOUSING 1
44 FLAT WASHER 5x 12x1 3
45 SCREW M5x30 1
46 SCREW M5x50 2
47 BRUSH HOLDER 7x11 2
48 CARBON BRUSH 7x11 2
49 BRUSH CAP 7x11 2
50 SCREW M5x20 1
51 AUX. HANDLE 1
52 HANDLE HALF RIGHT 1
53 HANDLE HALF LEFT 1
54 SCREW M4x25 5
55 SCREW M4x14 2
56 CORD CLIP PC 1
57 CORD ARMOR 1
58 POWER SUPPLY CORD 1
59 SWITCH 1
60 OVERLOAD UNIT (Optional) 1
61 L-TYPE HEX WRENCH 1
62 SPRING 0.8x 8x26mmx9 1
63 SWITCH 1
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