Diamond CG-2 User Manual

CG-2 Mini Groover with 49 HP Diesel

Operators Manual &

Parts Book

December 2012

Part Number 1802086

www.diamondproducts.com

Date

Service Performed

Parts Used

CG-2 Mini Grinder /G r oove

Maintenance Records & Notes

Table of Contents

Safe Operations and Precautions…………...…2-6

Depth Stop Assembly…………………………....41

Safety Precautions

Safety Alerts

1

Dimensions………………………………………….7
Dash Layout & Operational Controls…………….8
Operating The CG-2……………...……………9-15
Maintaining The CG-2………..………………16-25
Frame & Guards Assembly……………...…..26-27
Instrument Panel Assembly……………………..28

Control Lever Assembly………………………....29

Control Grip Assembly…………………………...30
Blade Shaft Assembly ………………….…….32-32
Lift Plate Assembly……………………….……...33
Drive Axle Assembly………………………….….34
Transmission & Drive Gear Assembly……..35-36
Engine & Exhaust Assembly……………….…...37

PTO Assembly…………………………………....38

Air Intake Assembly ……………………………..39
Positraction Engagement Assembly……………40

Hydraulic Pump Assembly………………………42
Battery Assembly………………………………...43
Fuel Tank And Supply Assembly……………….44
Water Supply Assembly…………………………45
Transmission Jack Shaft Assembly……………46
Guide Wheel Assembly…………………………47
Transmission Belt Tensioner Assembly………48
Front Pointer Assembly…………………………49
Parking Brake Assembly……….……………….50
Belt Location Assembly…………………………51
Maintenance Record….…………………….52-53
Warranty Information……………………………54

Operate the CG-2 Mini Grooving machine and all of
its components according to this manual. Failure to
comply with and have understanding of the following
safety, operations, and maintenance instructions
may result in serious injury or death. All operators
must be properly trained or supervised by
experienced personnel prior to operating the
machine and should be familiar with the risk and
hazards involved with its operation. Improper or
unintended machine usage is discouraged and
Diamond Products cannot be held liable for
damages.

Any and all machine modifications should be made
by Diamond Products to ensure safety and design.
Any modifications made by the owner(s) are not the
responsibility of Diamond Products and void all
warranties is problems arise from modifications.

Refer to the CG-2 Mini Grooving Machine parts list
for additional information and parts diagrams.
Replace parts with only those found in the parts list.

NOTICE: The information in this manual may
be updated at anytime.

Serious Injuries and/or death will occur if these
instructions are not foll owed.

Serious Injuries and/ or death will occur if these

instructions are not foll owed.

Mild and/or moderate injuries may occur is

these instructions are not fol l owed.

Safety Precautions

2

Operate the CG-2 Concrete Groover/Grinder and all
of its components according to the Diamond
Products owner manual. All operators must be
properly trained or supervised in order to operate
this machine and understand the inherent risk and
hazards involved. Improper or unintended saw
usage is highly discouraged and Diamond Products
cannot be held liable for any damages.

Any and all saw modifications shall be made by
Diamond Products to ensure proper safety and
engineering. Modifications made to the saw by the
current owner are not the responsibility of Diamond
Products, and void any and all warranties if
problems arise due to the modifications.

Failure to comply with and understand all safety,
operation, and maintenance procedures and
instructions provided in this manual can result in
serious injury and/or death. Any and all information
in this manual may be updated and changed at any
time.

Prior to operating the saw, record the saws serial
number and engine model number and serial
number in the
for future reference.

Serial Tags

Safety Alerts

Serious injuries and/or death will occur if these
instructions are not followed.

section of this manual

Proposition 65

Engine exhaust and some of its constituents are
known to the State of California to
cause cancer, birth defects, and or
other forms of repertory harm.

Respiratory Hazard

Concrete cutting and drilling produces dust and
fumes known to cause illness, death, cancer,
respiratory disease, birth defects, and or
reproductive harm. Safety protection techniques
include, but are not limited to:

• Wearing protective gloves.

• Wearing safety goggles or face shield.

• Using approved respirator.

• Washing work clothes daily.

• Using water when cutting to minimize dust.

• Washing hands and face prior to eating or

drinking.

For additional safety and self protection
information, contact your employer, the
Occupational Safety and Health Administration
(OHSA), and/or The National Institute for
Occupational Safety and Health (NIOSH).

Spark Arrest Requirements

Serious injuries and/or death could occur if these
instructions are not followed.

Mild and/or moderate injuries could occu r i f these
instructions are not followed.

In the State of California it is a violations of Section
4442 or 4443 to use or operate an engine on any
forest-covered, brush-covered, or grass covered
land unless the engine is equipped with a spark
arrestor, as defined in Section 4442, maintained in
effective, working o rde r or t h e engine is
constructed, equipped, and maintained for
prevention of fire pursuant to section 4443.

General Safety Procedures

3

• Regularly clean any slurry, concrete dust, and
debris from saw.

• Place jack stand or locks under
both frame edges at the front and
back of the saw frame when
working under saw.

• Repair saw immediately if problems arise.

• Replace saw decals when they have become

damaged or unreadable to ensure proper safety
and operating procedures.

• Dispose of all hazardous waste and materials
properly according to city, state, and federal
regulations.

• Always have a phone nearby and locate the
closest fire extinguisher and first aid kit prior to
saw operation.

• Persons under the statutory age limit should
not operate the saw.

• Always allow saw to fully cool when finished
operating in order to prevent burns or injury.

DO NOT:

• Operate the saw without a complete

understanding of all safety, operations,
and maintenance instruction.

• Drop equipment, supplies, tools, blades,

etc. when handling to prevent injury.

• Operate machine without using

appropriate safety equipment required for
work site task.

• Operate or service machine with clothing,

hair, or accessories that are loose and
may become entangled in machine.

• Operate using attachments not associated

with or recommended for the machine.

• Operate machine with loose fasteners or

belts.

• Operate machine with anyone in working

area.

• Operate machine until obstruction have

been removed from worksite

• Operate machine when ill, fatigued, or

under the influence of drugs or alcohol.

• Operate the saw on extreme slopes.

.

• Operate saw without any safety guards,
access panels, or safet y devices removed or
tampered with.

• Grease or lubricate engi ne o r components
while it’s running.

• Perform any maintenance until saw has
cooled.

• Perform maintenance with engine running.

Battery Safety

• Ignitable explosive gases are
emitted from battery. DO NOT
expose battery to sparks or open
flame.

• Keep are around battery well ventilated.

• Keep the battery level when handling it.

• Use protective eyewe ar or a face shield and

avoid contact with the skin when
handling/servicing the battery.

• Use a proper battery tester whe n testing the
battery strength.

• Always connect the battery cables to the proper
terminal to ensure safety.

• Regularly inspect the battery, cables, clamps,
and terminals for damages. Clean, replace,
tighten, and grease components as necessary.

• Always keep the battery cable clamps away
from the battery terminals when the battery is
disconnected to avoid a cciden tal connections.

• Immediately rinse your clothing, skin, or eyes
with water if exposed to battery acid. Seek
medical attention immediately!

• Turn off the master battery disconnect when
servicing the machine.

• Disconnect the battery prior to servicing the
machine unless stated otherwise.

• Remove the battery when storing the machine
for longer periods.

• Disconnect external eq u i pment connected
through the electrical o u tlets prior to servicing
the machine.

• Always use the correct size fuses (amps) to
prevent fires.

Blade Safety

• Always use reinforced abrasive blades or steel

centered diamond blades.

• Inspect all blades prior to usage and discard

any damaged blades.

• NO NOT install a blade shaft with engine

running.

• Keep all body parts away from rotating blades.

Blade Safety cont.

• DO NOT Expose yourself or others to the direct
line of the blade shaft while operating the saw.

• Inspect the blade flanges, for any visible
damage, wear, and cleanliness.

• Always use the appropriate si ze blade for the
cutting task. The blade must fit snug on the
blade shaft arbor and be properly retained by
all blade shaft tie bolts and flanges.

• Wear gloves and always be aware of
environment when handling blades.

• DO NOT drop blades when handling.

• Always point printed arrow on the blade in the

direction the blade shaft is rotating when
installing blade.

The CG-2 is
an Up Cut machi ne ,
therefore the blade arrows
must point toward the
operator if they were at the rear of the
machine.

• Always use the appropriate blade type for the
material being cut.

• DO NOT exceed the maximum RPM speed
printed on the blade when cutting; Excessive
blade speed can cause blade breakage,
resulting in serious injury and/or death.

• DO NOT use blade with lower maximum
operating speed than the blade shaft speed for
cutting.

• Always tighten the blade shaft bolts to 185 ft-lb
or 250 Nm to properly secure the flange and
blades. Failure to completely secure the loose
flange or blades may cause parts to loosen or
fall off resulting in serious injury and damage to
machine.

• Install correct blade shaft sheave, drive belts,
and flanges when changing blade size. Refer to
the Diamond Products parts list in this manual
for additional information.

• Adjust engine speed if necessary to properly
accommodate the indicated blade speed which
can be identified by the readout on the shaft
speed tachometer located on the dash.

• Raise the blade to a sufficient height when
maneuvering the saw to provide proper
clearance between groun d and blades.

• Always allow blades to cool prior to servicing,
blades may get extremely hot during cutting
process and may retain heat for long periods of
time.

Belt Guard Safety

• DO NOT Operate saw without belt guards in
place.

• Blade exposure while cutting should be no more
than 180°.

• DO NOT remove belt guards with engine
running.

• Always keep belt guards in place and securely
fastened to prevent danger.

• Inspect the belt guard prior to operating and
clean, repair, or repl a ce as neces s a r y.

Fuel Safety

• Store all fuels in appropriate safety containers.

• DO NOT operate saw with a fuel leak.

• DO NOT refuel machine while it is running.

• Let engine cool before add i n g fuel.

• DO NOT smoke or expose fuel to

open flame when filling the fuel
tank and or working on machine.

• DO NOT overfill fuel tank, and
immediately cleanup any fuel spilled prior to
starting machine as fuel may leak from vent
cap when saw is raised.

• Move the saw away from fueling area prior to
starting engine.

• Use appropriate diesel f uels i n co ld weather
areas.

• Drain fuel tank and fuel lines for prolonged
storage.

Engine Safety & Starting Procedure

• Refer to the Deutz Operational Manual including
with this saw for primary engine safety and
care information.

• Push the
immediately stop the engine if necess a r y.

Starting Procedure

• The CG-2 machine is equipped with multiple
safety devices to prevent injury to operator
or equipment during startup and operation.

• Always start the engine with the speed
control lever in
transmission fully engaged to prevent
unnecessary saw movement.

• To engage the transmission, locate the
Positraction Engagement Knob on the dash
of the machine and tighten until transmission
is fully engaged.

• Water pressure must be present at the water
supply connection in order to start the
machine. The CG-2 machine is equipped with

Emergency Stop

NUETRAL

button down to

and the

a water safety device that prevents saw
operations without having an adequate
water supply. Water does not necessarily
need to be flowing to cutting head, but must
be pressurizing in the system and must be
utilized when sawing.

• The CG-2 Grooving and Grinding machine is
also equipped with a safety device that will
not permit an engine start unless the cutting
head is fully raised and the saw blades are
completely clear of ground. This is achieved
by raising the cutting head FULLY by
pressing the left button on the controller
handle and raising the cutting head till it
stops.

• Set the parking brake located on the left side
of the machine to the ON position.

• The machine may now be started using the
key switch located on the dash panel.

• Once engine has been started and given
adequate time to achieve operating
temperature the saw is ready for use.

• Remember the transmission must be fully
engaged or a safety device will not allow
lowering of the cutting head.

• Slowly lower the cutting head using the right
button on the control lever use caution not
to slam the cutting head blades into the
ground.

• Also be sure that the rotating safety shield is
rotated out of the way and locked in to
position using the pin on the lower left of the
machine.

• THIS MACHINE IS AN UP CUT SAW,
MEANING THE BLADES ROTATE IN A
DIRECTION CAUSING THE MACHINE TO
FORCE ITSELF BACKWARDS. USE CAUTION
WHEN FIRST ATTEMPTING TO CUT TO
PREVENT SERIOUS INJURY TO OPERATOR
AND EQUIPMENT. BE AWARE OF THE
EMERGENCY STOP BUTTON LOCATED ON ---

-THE DASH IN ORDER TO PRESS IT IN CASE
MACHINE BECOMES UNCOTROLLABLE.

• Once machine is set to depth and ready to
cut, disengage the parking brake and
proceed to cut with caution by moving the
controller handle forward.

• DO NOT leave machine unattended when
running.

• Keep all body parts away from rotating parts
when the machine is running.

• DO NOT start engine without air filters installed.

• DO NOT allow dust or debris to enter air intake

tubes when cleaning/servicing air filters to
prevent serious engine damage.

• Replace any damaged saw components
immediately that may allow dust to enter the
engine in order to prevent serious engine
damage.

• DO NOT use any starting substances or fluids
when starting engine using glow
plugs. (Spraying st arter into
intake tube) These materials are
extremely flammable and
explosive, and can melt or damage parts
possibly causing engine to explode when used
in conjunction with glow plugs.

• Always operate saw in a well ventilated area.
Concentrated engine exhaust can cause loss of
consciousness and/or death.

• DO NOT operate saw in areas that contain
combustible materials and/or fumes, these can
create and explosio n.

• DO NOT leave saw unattended after shutting
off until blades have fully stopped spinning.

• Clean the engines cooling system regularly to
prevent hot operating temperature and damage
to saws engine.

• DO NOT perform any maintenance on saw
while it is running.

• Let engine cool before performing any
maintenance.

• Handle hot oil carefully when changing oil and
make sure to properly dispo se of used oil.

Cutting Safety

• The work area should contain no buried or
embedded electrical, gas, water, or
telecommunications lines.

• Turn off all electricity, gas, and water lines
around work area prior to cutting.

• DO NOT expose yourself or others to the direct
line of cutting when operating saw.

• DO NOT allow any person, animal, or object in
and around work area when cutting.

• Use just enough pressure to guide the saw on

6

cutting line. DO NOT forcibly direct (twist) the
saw from side to side to avoid damaging the
saw blades.

• Avoid sawing excessively deep to prevent
premature blade wear and reduce sawing cost.

Hydraulic System Safety

• Turn the engine off prior to performing and
maintenance on the hydraulic system.

• Lower the saw to the floor so it is level to
release pressure in the hydraulic system prior
to performing any maintenance on the
hydraulic system.

• Visually inspect for, or use a piece of cardboard
placed under machine to check
for and locate and hydraulic
leaks. Keep all body parts away
from areas were that may eject
hydraulic fluid. Pressurized hydraulic fluid can
penetrate skin causing serious injury.

Belt Safety

• Turn off engine prior to performing any belt
maintenance.

• Always let belts cool down prior to performing
any replacement or repairs.

• Regularly inspect the belts for any fraying,
stress cracks, and /or any other damage,
replace them immediately if and damage is
found.

• Over tensioning the belts may cause damage to
the PTO unit. Under tensioning belts may cause
shorter belt life and poor saw performance.

• Squealing belts are an indication that the belts
are loose.

• Always make sure that belts are properly
aligned.

• Always replace belt guard prior to operating the
saw after any belt maintenance.

Transmission Safety

• DO NOT assume the transmission will act as a
brake or holding mechanism when the saw is in

Neutral

the
saw. Block the saw to prevent an unwanted
movement and set the parking brake on the left
side of the machine.

• The engine must run at half throttle or greater
to ensure proper transmission efficiency.

• Clean the transmission fan and fan guard
regularly and prevent buildup of debris on the
transmission to prevent high transmission
temperatures.

position when stopping or parking

Transportation Safety

• Drain the saws fuel tank when transporting
over long distances.

• Use heavy duty ramps that will support
weights greater than the saw and operator
for loading.

• The towing vehicle/trailers should always be
in good working condition and capable of
handling the weight of the machine.

• Raise the saw to avoid catching the lower
body of the saw when loading and
unloading saw.

• Use extreme caution and low speed when
guiding saw up or down ramps for loading.

• Slowly drive the saw backward up the
ramps and slowly forward for unloading
down ramps.

• When transporting saw, turn engine off
once the saw is loaded and place the drive
level in the

Neutral

position and engage the

transmission.

• Block and chain the saw to properly secure
it for transport, do not assume the
transmission and parking brake will keep
the machine in place.

• Refer to DOT (Department of
Transportation) for additional information
regarding proper transportation technique.

Lifting Safety

• Move yourself and others
away from the lifting area
when hoisting to prevent
being crushed underneath
saw.

• Secure the appropriate cables, ropes, wires,
and/or chains to the saw lifting points and
frame to properly lift saw when hoisting it.

• DO NOT attempt to lift saw irresponsibly or
improperly.

72.000

7

CG-2 Mini Groover Dimensions

118.000

73.000

36.000

Saw Specifications

Maximum Length (Pointer Down and Handles Extended)
Minumum Length (Handles in and Pointer Up)
Saw Height
Handle Extension
Saw Width (Maximum)

Uncrated Saw Weight
Blade Arbor Diameter

Maximum Cutting Depth
Blade Shaft Bearing Diameter
Blade Shaft Bearing

Blade Shaft Drive
Blade Shaft Effective Length
Blade LIft

Blade Coolant
Front Wheels

Drive Wheels
Handle Bars

Transmission
Drive Speed

Electric Start
Hour Meter

Amp Meter
Fuel Capacity

Blade Tachometer
Frame Lift

142.00"

73.00"

72.00"

24.00"

36.00"

1900-2000 lbs.

5.00"

1.625"

1.4375"

High Capacity Tapered Roller

Dual 5 Groove 3V Belts

16.00"

Electro-Hydraulic Pump

10 H1/4 Spray Nozzle

8.00" x 3.00" x 1.00"

10.00" x 3.00" x 1.25"

Two Positions with Tilt

Eaton Hydrostatic

0-200 Ft/Min

Standard
Standard

Warning Light

9.0 U.S Gallons
Standard
Standard

CG-2 MIni Groover Dash Layout & Operational Controls

8

Blade Depth Stop Control:
Holds specific cutting depth.

Emergency Stop:
Stops all power systems
inside of machine in case
of emergency.

Water Safety Switch:
Ensures water pressure
to machine.

Master Power Switch:
Controls Electrical output
from battery to components
electrical systems.

Engine Temperature Guage

Ignition Switch

Throttle Control:
Used to sets engine RPM.

Shaft Tach:
Accurately monitors
blade shaft RPM, and
indicates total hours of
saw operation.

Parking Break:
When engaged prevents
machine from moving.

Positraction Control:
Used To engage drive
axle to transmission.

Water Control Lever:
Used to engage water flow to
cutting head.

Control Lever:
Forward & Reverse motion controls
machine movement in corresponding
direction while in center is neutral. Left
button controls raises blades, and right
button lowers blades.

Operating the CG -2

9

Handlebars

The handlebars are used to help the operator guide
and maneuver the saw.

Adjusting the Handlebars

1. Loosen the handle lock knobs.

2. Hold the handlebar grip and place the first
handlebars into the handlebar opening
directly below the lock knob , there are two
paths the handlebar can fit through. Select
the handlebar angle that works best for
specific cutting ope r a tion and slide
handlebar in to determined length.

3. Tighten the handle lock knob to secure
handlebar at proper position.

pointer lanyards and place it in the cable
cleat to secure it in place.

Pointer Alignment Using String

Battery

• Ignitable & explosive gasses
are emitted from the battery.
DO NOT expose battery to any sparks or
open flames, and keep are around battery
well ventilated.

Handle Lock Knob & Handlebar

4. Repeat steps 2-3 to secure the second
handlebar.

5. Adjust handlebar orientation and length as
necessary.

Front Pointer

The front pointer assembly aids the operator in
following a cutting line.

Adjusting the Front Pointer

1. Remove the tensioned pointer lanyard from
the cable cleat on the top of the dash.

2. Lower the front pointer to the floor.

3. Loosen both front pointer frame screws.

4. Divide a 10’ piece of string in half.

5. Place the looped end of the string into a
gullet on the backside of the outermost
blade.

6. Place one side of the string up against the
front side of the blade, holding the string
ends in one hand; tension the lines out
towards the front pointer rod.

7. Slide the pointer rod over between the
tensioned string lines.

8. Retighten both front pointer frame screws
to secure pointer rods .

9. Lift the front pointer frame off the ground
when cut is complete, and re-tension

• Use proper battery tester, such as a
voltmeter, to test the ba t te ry stren gth.

• Use protective eyewe ar or face
shield and avoid skin contact
when handling battery.

The saw contains an installed, charged battery with
one positive and one negative battery lead. The
battery cables are connected prior to saw delivery.

A battery disconnect switch is located o n the left
side of the dash on the saw, this disconnect switch
should be used whenever the saw is not in
operation for safety and battery longevity.

Diamond Blades

DO NOT Exceed the maximum RPM printed on the
blade when cutting. Excessive blad e
speed can cause blade breakag e ,
resulting in serious injury or death.

Using the proper blade helps preserve the blades
life and also improves the operator’s efficiency,
resulting in lower cost. Refer to

www.diamondproducts.com for a list of all the

different blades available to suite each job.

10

Inspecting the Blade
Always inspect each blade prior to blade
installation. DO NOT use damaged blades for
cutting in order to avoid injuring yourself, others,
or the machine. Discard all damaged blades and
inspect each replacement blade for deficiencies.
Inspect blades prior to installation for:

• Cracks, Nicks, Or Dents

• A damaged and/or deformed arbor.

• Darkness or discolo r ati on near edges of the

blade.

• A deformed blade circumference.

• Segments missing or cracked.

• Core wear.

• Bending or warpage.

• Uneven side widths.

Blade Speed
Refer to the Diamond Products blade specification
for information on the recommended blade RPM
when cutting. DO NOT use a blade with a lower
maximum operating speed than the blade shafts
speed when cutting.

Blade Shaft Removal

• DO NOT remover or install a
blade shaft with the engine
running.

• Failure to properly s e cure th e
loose flange and blade shaft tie bolts may
cause parts to loosen and fall off.

• The blade shaft assembly weighs up to 500
pounds and must be lifted to a vertical
position to change blades.

• Failure to follow these instructions may
cause serious injury or death.

3. Lower the saw until the blades make
contact with the ground using the lowering
button located on the right side of the
control handle.

4. Block the front and rear of the blade shaft
assembly with wooden block or similar to
ensure the blade shaft assembly does not
roll when bearing bolts are loosened.

5. Remover the depth stop wheels off the
front of the machine by removing the hex
nuts with a 1.50” wrench or socket.

6. Loosen and remover the 4 blade shaft
bearing bolts using a 3/4” wrench or socket.

Carefully Lower Blade Shaft Assembly From Machine

7. Slowly raise the saw to the maximum height
using the raise (Left) pushbutton on the
speed lever.

8. Carefully remove chock blocks at the front
of the blade shaft assembly and slowly
remove the assembly, it should clear the
machine.

9. Using supplied hoist ring (2504720)
attached to the non sheave end of the
blade shaft. Make sure the ring is fully
seated in the threads and that threads are
clean and free of debris on the end of the
blade shaft. With a suitable lifting device
and proper capacity chain or cable, lift the
shaft and carefully set down on sheave end.
After securely setting in upright position,
remove hoist ring.

• Always wear protect ive glo ves
when handling blades.

• Always let blades cool prior to
removing or replacing of
blades.

Place Blade Shaft Assembly on End Using Hoist Ring

1. Remove the belt guard. There are 6 bolts
that must be removed using a 9/16”
Wrench or Socket.

2. Remove the blade shaft driv e belts (2).Refer
to page __ for removal and installation.

10. Remove the revolving blade shield by
removing the hex head machine screws
located on the underside of the shield near
the bearings.

11. After bearing cap halves are removed,

11

remove outer shield and set as ide.

12. Remove the bearing on the lifting end of
the blade shaft and set aside.

13. Next, remove the Left Blade Cover
Weldment leaving the water shield and lock
pin attached.

14. Remove the (4) Hex nuts using a 1-1/8”
wrench or socket holding the Blade Flange
in place.

15. If the Blade Flange is stuck, use the (4) pre
tapped holes to thread ½-13 bolts to press
off the flange.

16. Once the Blade Flange is removed you have
access to the cutting bl ades and spacers,
these will vary depending on the setup of
your saw. REMEMBER to inspect all blades
for any signs of damage including, cracks,
dents, missing segments or discoloration
and replace immediately.

Belt Guards

• DO NOT operate machine with belt guards

removed.

• DO NOT remove belt guards when engine is

running.
The belt guards shield the belt drive to prevent
accidents and must always be in place when
operating the saw.

Removal & Installation of Belt Guards

1. Remove the (6) 3/8” bolts using a 9/16”
wrench or socket that retain the belt guard.

2. Lift the belt guard away from machine.
NOTE: the belt guard shields the underside
of the pulleys and must be removed by
pulling straight back.

3. Install in reverse order of removal.

Blade Removal (Please Refer to the Parts Manual

Section of This Manual for Larger Illustration).

17. Repeat steps 10-16 in reverse order for
reassembly, take note that the blade shaft
spins at very high RPM’s and all fasteners
must be double checked for proper fitment
and torque (4 bolts retaining Blade Flange
must be 185 ft lbs or 250 Nm) prior to
reinstallation to ensure operator and
machine safety.

18. When installing new blades, be sure the
blades are correct for the cutting task.

19. Cleanliness is very important in this area of
the machine, take the extra time to ensure
all debris, slurry and foreign materials have
been fully eliminated b e fore r ea ssembly.

20. Always make sure the arrow on your
Diamond Products blade is pointed in the
same direction as the rotation of the blade
shaft.

21. Reinstall blade shaft assembly in the
reverse order of removal; reinstall belts,
guards and depth stop wheels before
restarting machine.

Remove the six bolts attaching belt guard.

Water Supply

The water supply helps cool the blades and
minimize dust when cutting. Approximately five to
eight gallons of water per minute are required to
adequately cool blades when running.

NOTE: this
machine is equipped with a water safety switch
meaning it will NOT operate unless there as a
suitable supply of water to the water supply line.

Using the Water Supply System

1. Connect water source to the hose
connection on the left side of the dash of
the machine.

2. Turn on the Water Safety Switch on dash
panel.

3. When ready to start cut, turn the water flow
to the ON position using the level next to
the Machine Control Handle on the right of
the dash. Remember the water source
needs to be ON and adequate in order for
the machine to be started.

4. There a total of ten spray tips routed just

12

behind the blades of the cutting head, these
ensure proper cooling when cutting.

5. Check that the spray tips with machine off
that they are functioning properly and have
an even spray of water when servicing
machine.

Control Grip

The control grip located on the right side of the
dash control many of the functions of the machine.
Moving the lever in a forward and reverse motion
control the machine movement in a similar fashion,
while in the center position is neutral.

NOTE: even
though the machine will typically not move in the
neutral position, do not assume it is safe to hold
the machine in a parked manner, always use the
parking brake to park machine.

There are also two
button located on the front side of the control
lever, these operat e the raisi ng and lo weri ng of the
cutting head. The left button raises that machine,
while the right lowers the machine.

Control Grip Lever

Raising the Saw
Press the left button on the control grip to raise the
saw and depress to stop.

NOTE: Always raise blade
to s sufficient height to ensure the blades are
completely clear of the ground when maneuvering
the machine.

Lowering the Saw
Press the right button on the control grip to lower
the saw and depress to stop.

NOTE: Carefully lower
the saw, do not slam the cutting head down, this
may damage blades or the machine.

Controlling Lowering Speed
It is possible to adjust the rate at which the
machine lowers the cutting head, to do this make
sure the machine is shut off and remover the rear
access panel form the machine. With panel

removed adjust the flow control valve located on
the hydraulic pump so it is to the operators liking.

Flow Control Valve

Forward Control
Push the control lever forward to travel forward ate
desired speed. The maximum speed that the saw
can travel is 200 ft/min.

NOTE: The engine must be
running and the transmission must be fully
engaged in order to move the usin g the speed
control lever, which must be in the NUETRAL
position to start engine. Also remember that the
emergency STOP button will always stop the
machine should it be necessary.

Reverse Control
Pull the speed control l ever backward to the
desired traveling speed. The maximum speed the
machine will travel backward is 200 ft/min.

Neutral Control
Place the speed control lever in the Neutral position
to stop the saw from moving forward and
backward. DO NOT use the neutral position as a
parking brake, this will NOT hold the machine;
apply the parking brake to keep machine from
moving unnecessarily.

Transmission

The transmission controls the movement of
machine. Always remember to push the em ergency
STOP button to immediately stop the saw if
necessary. The transmission must be engaged and
in the neutral position in order to start the
machine, as a precaution always have parking
brake set when starting the machine.

Engaging Transmission

1. Place speed control leve r i n the neutral
position.

2. With engine off, turn the Transmission
Engagement Knob located in the center of
the lower dash to the left to engage
transmission.

3. Turn knob till its stops, this ensures that

13

transmission is engaged.

Disengaging Transmission

1. Place speed control leve r i n the neutral
position.

2. Locate Transmission Engagement Knob in
the center of the dash.

3. Turn Engagement Knob to the right to
disengage transmission

4. Transmission is disengaged when machine
will free roll. NOTE: DO NOT disengage
transmission unless saw is on level ground
and parking brake is set.

Transmission Engageme nt Knob

Fuel System

• DO NOT operate the saw with a fuel leak.

• DO NOT refuel saw with the engine

running.

• DO NOT smoke or expose
fuel to open flame when
filling the fuel tank and/or
working on fuel system.

• DO NOT overfill fuel tank. Cleanup any
spilled fuel prior to starting the machine.

• NOTE: Fuel may seep from fuel vent cap
when saw is raised to its upright position if
overfilled with fuel, cleanup any fuel
spillage.

Adding Fuel
Check fuel level daily and fill as necessary, avoid
running machine out of fuel.

1. Lower the saw so that it is level with
ground.

2. Stop the engine and allow time to cool
down.

3. Remove fuel cap.

4. Fill the fuel tank with low sulfur or ultra low
sulfur diesel fuel only. The fuel tank has a
capacity of nine gallons.

5. Replace fuel cap and tighten to secure.

Cold Weather Fuel
Diesel fuel can become thick in cold weather,
resulting in clogs in the fuel system; refer to the
Deutz Operation manual for a list of appropriate
cold weather fuels.

Storage
Fill the fuel tank to prevent condensation and
contamination in the tank for short storage
intervals. For long periods of storage, drain the fuel
tank and lines.

Engine

• DO NOT leave engine running
while machine is unattended.

• Operate saw in a well
ventilated area, co ncen trated
exhaust can cause loss of consciousness
and/or death.

Engine Governor
A manufacturer set governor controls the engines
maximum speed. DO NOT adjust the governor
setting unless blade size has changed and would
require a different maximum engine speed.

Ignition Switch
The ignition switch is located on the dash panel of
the CG-2 machine. This is a multi-function switch
and operates as follows:

Auxiliary:

•

the engine.

• Off: Turns engine off.

Run:

•

engine.

•

Pre-Heat:

help the engine start in cold weather.

•

Start:

Creates power, but does not start

Creates power, but does not start the

Warms engines glow plugs which

Turns engine on.

DO NOT engage
Start for long periods of time, this can
cause overheating or damage to the starter.
If engine does not start right away, release
the key and try several minutes later. Refer
to the Fault Table in the Deutz manual if
engine does not start after two attempts.

14

Ignition Switch & Throttle Handle

Throttle Handle
This controls the engines RPM, which in return
control the blade RPM which in monitored on the
Blade Tachometer located next to the Throttle
Handle. NOTE: The Tachometer on the dash DOES
NOT indicate engine RPM, this is a measure of
blade RPM.

• Turn the throttle handle counterclockwise to
increase the engines RPM ’s. To decrease
engine RPM’s turn the throttle handle
clockwise.

• Push the spring loaded throttle tip and pull
the throttle out to increase engine RPM’s, or
push in the throttle handle to decrease
engine RPM’s.

Hold/Release Knob

• Turn the Hold/Release knob clockwise to
hold the throttle at a constant engine/blade
RPM or turn the Hold / R eleas e knob
counterclockwise to r e l ea se the throttle and
adjust engine RPM.

• Turn the Throttle Handle clockwise to
decrease, or counterclo ckwise to increase
engine/blade RPM when the Hold/R el e ase
button is secure; however, the spring
loaded throttle tip cannot be pushed in or
pulled out to adjust engine/blade RPM when
the Hold/Release button is secured.

Prior to Starting Engine
Complete the following check list prior to starting
the engine.

• Fill the fuel tank with diesel and check the
engine oil.

• Push the water valve to OFF position

• Make sure Water Safety Switch is ON

• Place transmission in NEUTRAL

• Engage transmission

• Apply Parking Brake

• Pull Emergency Stop OUT

• Verify the Master Power Switch is ON

• Push the Throttle in to idle.

• Remove all obstructions from work area.

Starting Engine

• DO NOT use any starting
substance or starter fluids when
starting machine. Engines
equipped with glow plugs may
ignite these extremely flammable materials
and may spark fire or explosion causing
serious injury and/or damage to machine.

1. To start engine without using glow plugs,
insert the key into the key ignition and turn

Start

the key to

, and immediately release
when engine starts. If engine does not start
after two attempts, refer to the Fault Table
in the Deutz Manual.

2. To start the engine using glow plugs, insert
the key into the key ignition and turn the
key to

Pre-Heat,

holding it there for

approximately 20 seconds. Turn the key to

Start

the

position and release immediately
after engine start. If the engine does not
start right away, try the
again and attempt to

Start

Pre-Heat

process

engine. If engine
does not start after two attempts refer to
the Fault Table in the Deutz Manual.

3. Once engine has started increas e engine
speeds to half throttle and allow the engine
to warm up for several minutes.

4. Increase the engine speed to full throttle
after warm up. Adjust throttle as necessary
when cutting. DO NOT exceed
recommended blade RPM.

NOTE: At times
the actual blade RPM will be lower than that
recommended for the blade do to job
conditions and/or task difficulty level.

Stopping Engine

• DO NOT leave the saw unattended, after
turning off engine until blades have fully
stopped spinning.

1. Place speed controller in

Neutral

position.

2. Raise blades from cut.

3. Push water valve to OFF position.

4. Decrease engine speed to i dle for several
minutes to allow engine to cool down.

OFF

5. Turn key to

position and remove key.

Concrete Cutting

15

• DO NOT expose yourself or other in

the direct path of the
blades when operating
the saw.

For better efficiency, keep the foll o wi ng in mind
while cutting:

• Use just enough pressure on the handlebars
to guide the saw on the cutting line. DO
NOT forcibly direct (twist) the saw form side
to side when cutting.

• Moving too quickly when cutting may stall
the saw, or cause the blades to climb out of
the cut. If the saw stalls at anytime, move
the speed controller to the

Neutral

and raise the blades fully to restart the
engine.

• DO NOT lower the blades or move the saw
forward to quickly when finishing a partial
cut to avoid forcing the blades into the
concrete.

Prior to Cutting
Complete the following prior to cutting:

• Raise the blades to a sufficient height

when maneuvering the saw to provide
proper clearance between machine and
the ground.

• Align the front pointer with the blade.

• Clearly mark the cutting line.

• The work area should not contain any

buried cables, electr i ca l l ines, gas lines,
or telecommunication lines and all gas
and electrical utilities should be shut off
in area prior to cutting.

Making the Cut

1. Pull the water valve to the

ON

2. Align the blade and pointer with the cutting
line.

3. Lower the blade to touch the cutting
surface.

4. Plunge the blade until the desired cutting
depth is reached. To maintain a particular
depth when cutting, turn the Depth Control
Knob clockwise, located on the top of the
machines dash, until resistance is felt. The
blade should not lower any further, if there
is no need for a depth stop, do not use it.

5. Push the speed control lever forward until
the desired travelling speed is reached .

position

position.

Raise and lower the blades as necessary.
When using the depth stop, raise the blades
from the cut and repeat as necessary.

Adjusting the Depth Stop
Turn the depth stop knob counterclockwise to
increase the cutting depth when plunging the
blade, or turn the depth stop knob cloc kw i s e to
decrease the cutting depth when plunging the
blade. The depth stop knob will stop turning when
the saw has reached its maximum depth.

Depth Control Knob

Continuing a Partial Cut

1. Maneuver the saw into the correct location.

2. Align the blade with previous cut, and then
plunge the blade back into t h e co n cr ete. DO
NOT move forward until blade is properly
aligned with cut.

3. Push the speed control lever forward until
the desired travel i ng speed is reached.

Finishing a Cut

1. Place the speed control lever in the

Neutral

position.

2. Raise the blades from the cut high enough
to ensure proper ground clearance when
maneuvering saw.