Diamond Products CCE0900 User manual

CORE CUT
CONCRETE SAW
OPPERATORS MANUAL
MODEL
CCE0900
MARCH 2020

Intentionally Blank

Table of Contents
Safety Precautions ................................................3
Safety Alerts. .....................................................3
Proposition 65....................................................3
Spark Arrester Requirement ..............................3
Respiratory Hazards ..........................................3
General Safety...................................................4
Blade Safety ......................................................4
Blade Guard Safety. ..........................................5
Fuel Safety ........................................................5
Engine/Motor Safety ..........................................5
Cutting Safety ....................................................6
Belt Safety .........................................................6
Transporting Safety. ..........................................6
Lifting Safety......................................................6
Introducing the CCE0900 ......................................5
CCE0900 Components......................................7
Controls. ............................................................7
Specifications ....................................................9
Operating the CCE0900 ......................................10
Handlebars ......................................................10
Adjusting the Handlebars .....................................10
Front Pointer....................................................10
Adjusting the Front Pointer ...................................10
Diamond Blades ..............................................11
Inspecting the Blade .............................................11
Blade Speed .........................................................11
Wrench .................................................................11
Installing the Blade ...............................................11
Removing the Blade .............................................12
Blade Guard ....................................................13
Installing the Blade Guard ....................................13
Removing the Blade Guard ..................................13
Water System ..................................................13
Handwheel ......................................................15
Raising the Saw....................................................15
Lowering the Saw .................................................15
Fuel System (Gas Models) ..............................15
Fueling the Saw....................................................15
Storage .................................................................16
Engine/Motor ...................................................16
Engine Governor (Gas Models)............................16
Tasks Prior to Starting the Engine/Motor..............16
Starting the Engine/Motor .................................... 16
Stopping the Engine/Motor................................... 16
Concrete Cutting ............................................. 17
Helpful Hints Prior to Cutting ................................ 17
Tasks Prior to Cutting........................................... 17
Making a Cut ........................................................ 17
Continuing a Partial-Cut ....................................... 17
Finishing a Cut ..................................................... 17
Maintaining the CCE0900.................................... 18
Tasks Prior to Maintenance ................................. 18
Maintenance Overview .................................... 18
Daily/Regularly ..................................................... 18
Handlebars...................................................... 18
Part Lubrication ............................................... 18
Blade Shaft........................................................... 18
Axle ...................................................................... 19
Adjustment Shaft .................................................. 19
Inner Blade Flange .......................................... 19
Installing the Inner Blade Flange.......................... 19
Removing the Inner Blade Flange........................ 19
Wheels ............................................................ 19
Front Wheels ........................................................ 19
Rear Wheels......................................................... 20
Blade Drive Belts............................................. 20
Tensioning the Blade Drive Belts ......................... 20
Replacing the Blade Drive Belts........................... 21
Engine/Motor................................................... 21
Cleaning the Engine/Motor................................... 21
Storing............................................................. 21
Disposal .......................................................... 21
Index ................................................................... 22
Daily Maintenance Task Chart......................... 23
Belt Tension Settings....................................... 24
Troubleshooting............................................... 25
References...................................................... 26
2

3
WARNING
Engine exhaust and some of its
constituents are known to the
State of California to cause
cancer, birth defects, and/or
other reproductive harm.
WARNING
Serious injuries and/or death could occur if
these instructions are not followed.
CAUTION
Mild and/or moderate injuries could occur if
these instructions are not followed.
Safety Precautions
Operate the CCE0900 Concrete Saw and all of
their components according to this manual. Failure
to comply with and understand the following safety,
operations, and maintenance instructions canresult
in serious injuries and/or death. All operators must
be properly trained or supervised prior to using
these saws and should understand the risks and
hazards involved. Improper or unintended saw
usage is discouraged and Diamond Products
cannot be held liable for any damages.
All saw modifications should be made by Diamond
Products to ensure proper safety and accuracy.
Modifications made to these saws by the owner are
not the responsibility of Diamond Products and void
all saw warranties if a problem arises from the
modification.
Refer to the Diamond Products’ Parts List for
additional information and part diagrams. Refer to
the engine/motor manual and manufacturer as the
primary source for all safety, operations, and
maintenance instructions for the engine/motor.
Prior to operating the saw, record the saw’s serial
number, and the engine’s model and serial
numbers in the Serial Tags section in the Index.
The information in this manual may be updated at
any time.
Safety Alerts
Proposition 65
Spark Arrester Requirement
Respiratory Hazards
DANGER
Serious injuries and/or death will occur if these
instructions are not followed.
WARNING
In the State of California
it is a violation of
Section 4442 or 4443 to use or operate the
engine on any forest
-covered, brush-
covered,
or grass
-
covered land unless the engine is
equipped with a spark arrester, as defined in
Section 4442, maintained in effective, working
order or the engine is constructed, equipped,
and maintained for the prevention of fire
pursuant to Section 4443.
WARNING
Concrete cutting produces dust and fumes
known to cause illness, death, cancer,
respiratory disease, birth defects, and/or other
reproductive harm. Safety protection
techniques include, but are not limited to:
x Wearing gloves.
x Wearing safety goggles or a face
shield.
x Using approved respirators.
x Washing work clothes daily.
x Using water when wet cutting to
minimize dust.
x Washing the hands and face prior to
eating/drinking.
For additional safety and self-protection
information contact your employer, the
Occupational Safety and Health
Administration (OSHA), and/or The National
Institute for Occupational Safety and Health
(NIOSH).

4
General Safety
x Read and understand all of the safety,
operations, and maintenance instructions in this
manual prior to operating or performing
maintenance on the saw.
x Clean slurry, concrete dust, and debris from the
saw daily/regularly.
x Raise the saw to a proper height
for easy access when working
underneath the saw, and place
jack stands or blocks under the
frame edges at the front and back of the frame.
x Repair the saw immediately if a problem arises.
x Replace saw decals when they become
unreadable.
x Dispose of all hazardous waste materials
properly and according to city, state, and
federal regulations.
x Always have a phone available, and identify the
DO NOT (cont.):
x Operate the saw when feeling ill or fatigued
x Operate the saw under the influence of drugs
and/or alcohol.
x Operate the saw on extremely steep slopes.
x Operate the saw with guards and access
panels removed.
x Grease/lubricate the saw with the engine/motor
running unless stated otherwise.
x Perform maintenance until the saw cools down.
x Perform maintenance with the engine/motor
running unless stated otherwise.
Blade Safety
x Always use reinforced abrasive blades or steel-
centered diamond blades.
x Inspect all blades prior to using and discard
damaged blades.
x DO NOT install a blade with the engine/motor
running.
location of the nearest fire extinguisher and first
aid kit prior to operating the saw.
x Persons under the statutory age limit should not
operate the saw.
x Let the saw cool down after operating it to
prevent serious burns.
x Properly chock the tires when parking the saw
on a slope to prevent unnecessarymovement.
x All non-routine maintenance tasks should be
performed by an authorized service center.
DO NOT:
x Operate the saw without using the appropriate
safety equipment required for the work task.
x Operate or maintenance the saw with clothing,
hair, or accessories that can snag in the
machinery.
x Operate the saw wearing flammable clothing.
x Operate the saw using attachments not
associated with or recommended for the saw.
x Operate the saw with anyone near the work
area.
x Operate the saw until all unnecessarymaterials
have been removed from the work area.
x Operate the saw with loose nuts and bolts.
x DO NOT expose yourself or
anyone else to the direct line of
the blade when operating the
saw.
x Keep all body parts away from rotating blades.
x Inspect the blade flanges for damages, wear,
and cleanliness. Clean, repair, or replace
damaged components immediately.
x Always use an appropriate size blade for the
cutting task. The blade must fit snug on the
blade shaft.
x The outer flange must fit snug on the blade
shaft, through the blade, and into the inner
flange alignment pinhole.
x Wear gloves and be alert to the surrounding
environment when handling blades.
x DO NOT drop the blade.
x Always point the arrow printed on the blade in
the direction of the blade shaft’s rotation when
installing the blade.
x Always use the correct blade type for the
material being cut.
x DO NOT exceed the blade’s maximum
recommended speed when cutting. Excessive
blade speeds can cause blade breakage,
resulting in serious injuries and/or death.
x DO NOT use damaged blades when cutting to
avoid harming yourself, others, or the saw.

5
x DO NOT use a blade for cutting that is rated
with a lower maximum operating speed than the
blade shaft speed.
x Tighten the blade shaft nut/screw to 50 foot-
pounds (ft-lb) (67.8 Newton-meters (Nm)) to
properly secure the outer flange and blade.
Failure to properly secure the outer flange and
blade may cause parts to loosen or fall off of
the saw when operating it.
x Raise the blade when maneuvering the saw to
provide proper clearance between the blade
and the ground.
x Let the blade cool prior to
removing or replacing blades
when dry cutting.
Blade Guard Safety
x DO NOT operate the saw with the blade guard
raised or removed.
x Blade exposure should not exceed 180° when
cutting.
x Always pivot the front of the blade
guard 180° (fully upward) so the
guard does not swing back
unexpectedly, which may cause
serious injuries.
x DO NOT remove the blade guard with the
engine/motor running.
x Always use a blade guard that corresponds with
the blade size.
x Inspect the blade guard and its water tubes
prior to starting the saw. Clean, repair, or
replace damaged components immediately.
Fuel Safety
x Store fuel in an appropriate safety container.
x DO NOT operate the saw with a fuel leak.
x DO NOT fuel the saw with the engine running.
x Let the engine cool prior to adding fuel.
x 


x Refer to the engine manual for recommended
fuels.
x Clean up spilled fuel prior to starting the engine.
x Fuel may seep out from the fuel cap vent
(applicable models) when the saw is raised.
x Move the saw away from the fueling area prior
to starting the engine.
x Drain the fuel tank and fuel lines for longer
storage periods. Refer to the engine manual for
additional information.
Engine/Motor Safety
x Refer to the engine/motor manual as the
primary source for engine/motor safety and
general care practices.
x Occasionally measure the engine speed and
adjust the engine governor, as necessary, to
the factory setting for proper saw and blade
efficiency.
x Always know how to turn off the engine/motor
for emergency purposes.
x Fill the fuel tank and check the oil level prior to
starting the engine.
x DO NOT leave the engine/motor running
unattended.
x 


x DO NOT start the engine without the air filter(s)
installed.
x DO NOT allow dust to enter the air intake tube
when cleaning/replacing the air filter(s) to
prevent serious engine damage.
x Immediately replace damaged saw components
that may allow dust to enter the engine.
x Always operate the saw in well-
ventilated areas. Concentrated
engine exhaust can cause loss of
consciousness and/or death.
x DO NOT operate the saw around combustible
materials or fumes to prevent fires/explosions.
x DO NOT leave the saw unattended until the
engine/motor is off and the blade has stopped
spinning.
x Wipe down the engine/motor exterior and
guards daily or regularly to prevent high
operating temperatures. DO NOT spray the
engine/motor with water to prevent engine
damage.
x DO NOT touch the engine/muffler assembly
with the engine running, and always let the
parts cool down after operating the saw to
prevent serious burns.
Keep all body parts away from
rotating saw parts with the
engine/motor running.
DO NOT smoke or expose fuel to
open flames when filling the fuel
tank or working with fuel.

6
x Let the engine/motor cool prior to performing
maintenance.
x Handle hot oil carefully when changing the
engine oil.
x DO NOT perform maintenance with the
engine/motor running unless stated otherwise.
x 


x Disconnect the electric motor saw from the
power source prior to touching electrical
connections.
x Disconnect the electric motor saw from the
power source prior to performing maintenance.
x All electric motor saws should be properly
grounded prior to operating.
x DO NOT supply less or more power to the
electric motor than what the motor is rated for.
Cutting Safety
x The work area should not contain buried or
embedded electrical, gas, or water lines.
x Turn off all electricity, gas, and water around
the work area prior to cutting.
x When using an electric motor saw, be aware of
all electrical lines around the work area when
power is necessary.
x DO NOT expose yourself or
anyone else to the direct line of
the blade when cutting.
x DO NOT allow any person, animal, or object in
and around the work area when cutting.
x Use just enough handle pressure to guide the
saw on the cutting line. DO NOT forcibly direct
(twist) the saw from side-to-side to avoid
damaging the saw and blade.
x Avoid sawing excessively deep to preserve the
blade and reduce sawing costs.
Belt Safety
x Turn off the engine/motor prior to performing
belt maintenance.
x Let the belts cool down prior to performing belt
maintenance.
x Regularly inspect the belts for fraying, stress
cracks, and/or breakage and replace
immediately if there are damages.
x Over-tensioning the belts may damage the
engine crankshaft. Under-tensioning the belts
may cause shorter belt life and/or poor saw
performance.
x Squealing belts indicate looseness.
x Make sure the belts are properly aligned prior to
operating the saw.
x Always replace the belt guard prior to operating
the saw.
Transporting Safety
x Remove the blade prior to transporting the saw.
x Move the fuel shutoff lever to the closed or off
position to prevent fuel leaks when transporting
the saw.
x Drain the fuel tank when transporting the saw
long distances.
x Use heavy-duty ramps that will properly support
the weight of the saw and yourself when
loading/unloading.
x The towing truck/trailer should be in good,
working condition.
x Raise the saw to avoid damaging saw
components while moving up and down ramps.
x Use extreme caution when guiding the saw up
and down ramps. Slowly push the saw forward
to guide it down the ramp. Slowly pull the saw
backward to guide it up the ramp.
x Turn off the engine/motor once the saw is
loaded into the truck/trailer.
x Properly block and chain the saw in the
truck/trailer prior to transporting.
x Refer to the Department of Transportation
(DOT) for additional information regarding
proper transportation techniques and
truck/trailer requirements.
Lifting Safety
x 


x Secure the appropriate hoisting cables, straps,
ropes, wires, and/or chains to the lift points on
the frame to properly lift the saw when hoisting.
x DO NOT attempt to lift the saw irresponsibly
and/or improperly.
For water cooled engines, let the
engine cool prior to removing
pressurized caps.
Move yourself and all others
away from the lifting area when
hoisting the saw to prevent being
crushed underneath the saw.

7
3
1
2
4
5
8
6
7
9
10
11
12
CCE0900 Components
1. Handlebars
2. Instrument Panel
3. Water Supply
4. Fuel Tank
5. Engine
6. Flange Guard
7. Rear wheels
8. Muffler
9. Air Filter
10. Blade Guard
11. Front Wheel
12. Front Pointer

8
Controls Shown Above:
1. Handwheel–Raises/lowers saw and blade.
2. Index Plunger–Locks/unlocks handwheel.
3. E-Stop Pushbutton–Stops engine
Controls not Shown Above:
1. Water Valve–Controls water flow to blade.
2. Engine/Stop Switch–Actuate in order to
start/stop engine.
3. Recoil Starter–Starts engine.
4. Choke–Restricts air flow in carburetor when
starting cold engine.
5. Fuel Tank Cap–Opening to add fuel.
6. Fuel Shutoff Lever–Opens/closes fuel line.
Note: Each control applies to certain saw models.
Controls
1
2
3

9
Specifications
Table 3: CCE0900 Specifications
Maximum Cutting Depth with 20” Blade 7-5/8”
Blade Shaft RPM 2,600
Blade Shaft Diameter 1-1/4”
Arbor Diameter 1” with single alignment pin
Blade Shaft Bearings Self-aligning pillow block bearings
Blade Shaft Drive One 280J V-ribbed belt
Blade Mounting Right
Blade Raise/Lower Screw feed
Blade Coolant Dual multi-spray water tubes
Blade Guard Attachment Bolt on
Handlebars Three-position
Drive System Push model
Fuel Capacity 1.75 gallons
Quick Disconnect Blade Flanges Standard
Uncrated Weight 230-235 lb (add 40 lb for crated weight)
Engine Specifications
Manufacturer Honda
Model GX390
Fuel Type Unleaded gasoline
Air Filter Cyclone, dual element
Low Oil Alert Standard
Note: Refer to the engine manual for additional
information.

10
Operating the CCE0900
Handlebars
The handlebars help the operator guide and
maneuver the saw.
Adjusting the Handlebars
1. Remove the screws securing the handlebars to
the frame.
2. Holding the handlebar grips, move the
handlebars up or down (matching the holes on
the handlebar shaft to the holes on the frame)
to adjust the handlebars to the desired height.
3. Secure the handlebars to the frame.
4. Adjust the handlebar height as necessary.
Front Pointer
The front pointer helps the operator follow the
cutting line.
Adjusting the Front Pointer
1. Remove the looped end of the shorter pointer
rope line from the handlebar grip.
2. Lower the front pointer frame to the ground.
3. Divide an 8–10 ft piece of string in half.
4. Place the looped end of string into a gullet on
the backside of the blade.
5. Place one string line up against the backside of
the blade and one string line up against the
front side of the blade. Holding the string ends
in one hand, tension the lines out toward the
pointer rod.
Figure 9: String Line and Blade
6. Loosen the nuts securing the pointer rod.
7. Adjust the pointer rod to place the pointer tip in
between the tensioned string lines.
8. Retighten the nuts to secure the pointer rod.
9. Lift the front pointer frame off the ground when
the cutting task is complete.
10. Place the looped end of the rope line around
the handlebar grip.
Handle Screws

11
CAUTION
x Wear gloves and be alert to the
surrounding environment when
handling
blades.
Diamond Blades Wrench
Use the wrench when installing or removing a
blade. Apply force to the opposite end of the
wrench and tighten the blade shaft nut/screw to 50
ft-lb (67.8 Nm) to properly secure the outer flange
and blade. This measurement can be verified with a
torque wrench.
Using the proper blade (size and type) preserves
the blade and improves cutting and operator
efficiency, resulting in lower costs. Refer to the
Association of Equipment Manufacturers (AEM)
safety brochure for diamond blades or
www.diamondproducts.com for additional blade
information.
Inspecting the Blade
Inspect each blade prior to installation and discard
all damaged blades. Inspect all blades for:
x Cracks, nicks, and dents
x A damaged and/or deformed arbor (center hole)
x Darkness and/or discoloration near edge of
blade
x A deformed blade circumference
x Segment loss and/or segment cracks
x Core wear
x Bending
x Uneven side-widths
Blade Speed
Refer to the blade packaging information or to the
information printed on the blade for the
recommended and maximum recommended blade
speeds when cutting. DO NOT exceed the
maximum recommended cutting speed. DO NOT
use a blade that is rated with a lower maximum
recommended speed than the blade shaft speed.
Figure 10: Wrench
Installing the Blade
1. Remove the blade guard or pivot the guard(fully
upward) to gain access to the blade flanges.
Note: Failure to fully pivot the guard may cause
serious injuries.
2. Remove the blade shaft nut/screw using the
wrench. Turn the nut/screw clockwise on the
right side of the saw and counterclockwise on
the left side of the saw to loosen.
3. Carefully pull the outer flange off of the blade
shaft and out of the inner flange alignment
pinhole.
WARNING
x DO NOT install a blade with
the engine running.
x Failure to properly secure
the outer flange and blade
may cause parts to loosen
or fall off of the saw.
WARNING
x DO NOT exceed the
blade’s maximum
recommended speed
when cutting. Excessive
blade speeds can cause
blade breakage, resulting in serious
injuries and/or death.
x DO NOT use damaged blades when
cutting to avoid harming yourself, others,
or the saw.
x Always use the correct blade type for the
material being cut.

12
9. Slightly rotate the outer flange and blade
backward to eliminate backlash (looseness)
between parts.
10. Fit the blade shaft screw into the threads in the
blade shaft
11. Tighten the nut/screw by hand. Slowly lower the
blade until it touches the ground.
Figure 11: Separating the Flanges
4. Inspect the nut/screw, outer flange, and inner
flange for damages and clean, repair, or
replace as necessary.
5. Select the correct blade type and size for the
cutting task and inspect the blade for damages.
DO NOT use blades that are too small/large for
the saw.
6. Raise the saw slightly (for easier access when
installing the blade).
7. Place the blade onto the blade shaft (the blade
should fit snug on the blade shaft). Always point
the arrow printed on the blade in the direction of
the blade shaft’s rotation.
8. Place the outer flange onto the blade shaft, and
align and fit the outer flange alignment pin
through the blade’s pinhole and into the inner
flange alignment pinhole.
Figure 12: Inserting the Outer Flange
Figure 13: Tightening the Nut
12. Tighten the nut/screw, using the wrench, to 50
ft-lb (67.8 Nm) to secure the outer flange and
blade. This measurement can be verified with a
torque wrench.
13. Replace the blade guard or pivot the front of the
guard down and over the blade to secure.
Removing the Blade
1. Remove the blade guard or pivot the guard
(fully upward) to gain access to the blade
flanges. Note: Failure to fully pivot the guard
may cause serious injuries.
2. Slowly lower the blade until it touches the
ground.
3. Remove the blade shaft nut/screw using the
wrench.
CAUTION
x Let the blade cool prior to
removing or replacing blades
when dry cutting.

13
4. Carefully remove the outer flange from the inner
flange alignment pinhole and blade, and then
remove the flange from the blade shaft.
5. Remove the blade from the blade shaft. Place
the blade in an appropriate storage location.
6. Inspect the nut/screw, outer flange, and inner
flange for damages and clean, repair, or replace
as necessary.
7. Fit the outer flange back onto the blade shaft.
8. Fit the blade shaft screw into the threads in the
blade shaft. Tighten the nut/screw by hand to
secure the inner and outer flange together.
9. Replace the blade guard or pivot the front of the
guard down and over the blade to secure.
Blade Guard
The blade guard shields the blade and must always
be in place when operating the saw. Inspect the
blade guard and its water tubes prior to starting the
saw. Clean, repair, or replace damaged
components immediately. Note: Always use a
blade guard that corresponds with the blade size.
Water System
The water system cools the blade and minimizes
dust when cutting. Note: Always test the water
supply for adequate pressure and flow prior to
cutting.
Water Valve and Supply Hose(s)
1. Connect the water source hose to the water
supply fitting.
2. Connect the water supply hose to the blade
guard.
3. Turn on the water valve to start the water flow
and turn off the water valve to stop the water
flow. The water flow between these two points
increases/decreases based on the valve’s
position. Note: Turn on the water just before
cutting to avoid wasting water.
Figure 17: Water
Supply Fitting
Removing the Blade Guard
1. Disconnect the water supply hose from the
blade guard.
2. Remove the lock nut from the blade guard
3. Use the handle on the blade guard to slide the
guard off
Installing the Blade Guard
1. Use the handle on the blade guard to slide the
guard on
2. Put on and tighten the lock nut from the blade
guard
3. Connect the water supply hose from the blade
guard.
WARNING
x DO NOT operate the saw with the blade
guard raised or removed.
x DO NOT remove the blade guard with the
engine running.
x Blade exposure should not exceed 180°
while cutting.
x Always pivot the front of the
blade guard 180° (fully
upward) so the guard does
not swing back unexpectedly,
which may cause serious injuries.

15
CAUTION
x
Clean up spilled fuel prior to starting the
engine.
x Fuel may seep out from the fuel cap
vent
(applicable models) when the saw is
raised.
Handwheel
The handwheel raises and lowers the saw and
blade. Note: The saw can be raised and lowered
with the engine off.
Fuel System (Gas Models)
Fueling the Saw
Fill the fuel tank as necessary.
1. Lower the saw so the engine is level.
2. Stop the engine and let the saw cool down.
3. Remove the fuel tank cap.
CCE0900 Handwheel
Raising the Saw
1. Pull out the index plunger and turn it 90° to
remove from the plunger groove. Turn the
handwheel clockwise to raise the saw.
2. Turn the index plunger 90° to lock it back into
the plunger groove. Turn the handwheelslightly
to lock the handwheel.
Lowering the Saw
1. Pull out the index plunger and turn it 90° to
remove from the plunger groove. Turn the
handwheel counterclockwise (to lower the saw.
2. Turn the index plunger 90° to lock itback into
the plunger groove. Turn the handwheel slightly
to lock the handwheel.
Figure 19: Fuel Tank and Cap
4. Fill the fuel tank with unleaded gasoline. Refer
to the engine manual for refueling information.
5. Replace the fuel tank cap and tighten to secure.
WARNING
x DO NOT operate the saw with a fuel leak.
x DO NOT fuel the saw with the engine
running.
x DO NOT smoke or expose
fuel to open flames when
filling the fuel tank or working
with fuel.

16
WARNING
x DO NOT expose yourself or
anyone else to the direct line
of the blade when operating
the saw.
x DO NOT leave the engine/motor running
unattended.
x Operate the saw in well-
ventilated areas.
Concentrated engine
exhaust can cause loss of
consciousness and/or death.
x All electric motor saws should be properly
grounded prior to operating.
Storage
Refer to the engine manual for fuel
recommendations when storing the saw.
Engine
Refer to the engine/motor manual as the primary
source for information.
Engine Governor (Gas Models)
The engine governor (located at the top of the
engine) is factory set for an engine speed of 3,600
RPM. DO NOT change this setting to prevent
engine damage. Occasionally measure the engine
speed and adjust to the factory setting, as
necessary, following the steps below:
1. Use a handheld tachometer or other
appropriate device to measure the engine
speed at the engine crankshaft.
2. Adjust the engine governor to correct the
engine speed.
Figure 20: Engine Governor
Tasks Prior to Starting the Engine/Motor
Make sure to complete the following tasks prior to
starting the engine/motor:
x Fill all liquids to appropriate levels for proper
saw operation.
x Set engine throttle to slowest position (gas
saw).
x Remove tools from work area.
x Raise blade off ground.
Starting the Engine/Motor
Gasoline Engine
1. Move the fuel shutoff lever to the open or on
position.
2. Close the choke. Note: When restarting a warm
engine, open the choke.
3. Increase the throttle by approximately 1/3.
4. Turn on the engine switch/stop switch.
5. Pull the recoil starter handle backward slowly
until resistance is felt, and then pull the handle
backward quickly. Gently return the handle and
repeat if the engine does not start. Note: Refer
to the engine manual if the engine does not
start after several attempts.
Figure 21: Recoil Starter
6. Decrease the throttle to the slowest position.
Gradually open the choke while the engine
warms up.
7. Increase the throttle to the fastest position and
adjust the throttle as necessary for maximum
efficiency. DO NOT exceed the maximum
recommended cutting speed when operating
the saw.

17
Concrete Cutting
Helpful Hints Prior to Cutting
Keep the following in mind for greater efficiency
when cutting:
x Use just enough handle pressure to guide saw
on the cutting line. DO NOT forcibly direct
(twist) saw from side-to-side when cutting.
x Avoid sawing excessively deep to preserve the
blade and reduce sawing costs.
x Moving too quickly when cutting may stall the
saw or may cause the blade to climb out from
the cut. If the saw stalls at any time, raise blade
from the cut and restart engine.
x DO NOT lower the blade too quickly or push the
saw forward too quickly when finishing a partial-
cut to avoid forcing the blade into the concrete.
Tasks Prior to Cutting
Complete the following tasks prior to cutting:
x Raise the blade to provide proper clearance
between the blade and the ground when
maneuvering saw.
x Align pointer assembly with the blade.
x Clearly mark the cutting line.
x Be sure the work area does not contain any
buried or embedded electrical, gas, or water
lines.
Making a Cut
1. Turn on the water valve. Note: Always have a
proper water pressure and flow when cutting.
2. Align the blade and front pointer with the cutting
line.
3. Lower the blade into the concrete slowly. DO
NOT cut any deeper than required. Use the
depth indicator as a reference to determine the
blade’s depth when cutting.
4. Push the saw forward, at a proper speed, to
continue down the cutting line. Cut as fast as
the blade allows; if the blade climbs out of the
cut reduce the forward speed and/or cutting
depth. Raise and lower the blade as necessary
while cutting.
Continuing a Partial-Cut
1. Align the blade with the previous cut and lower
the blade back into the cut (using the depth
indicator as necessary). DO NOT move
forward unless the blade is properly aligned
within the cut.
2. Push the saw forward, at a proper speed, to
continue down the cutting line. Raise and lower
the blade as necessary while cutting.
Finishing a Cut
1. Stop the saw.
2. Raise the blade from the cut (high enough for
proper ground clearance).
3. Turn off the water valve.
WARNING
x DO NOT expose yourself or
anyone else to the direct line
of the blade when cutting.
x Turn off all electricity, gas,
and water around the work area prior to
cutting.
x When using an electric motor saw, be
aware of all electrical lines in the area
when power is necessary.

18
Maintaining the CCE0900
Failure to read and comply with the maintenance
instructions provided in this manual may result in
serious injuries and/or death, and may harm the
saw. DO NOT attempt to perform maintenance on
these saws if you are not properly trained for it, or
are not supervised by an experienced person.
Refer to the Diamond Products’ Parts List for
additional information and part diagrams when
performing maintenance tasks. Refer to the
engine/motor manual and manufacturer as the
primary source for all safety, operations, and
maintenance instructions for the engine/motor. All
non-routine maintenance tasks should be
performed by an authorized service center.
Contact the manufacturer with any additional
questions.
Tasks Prior to Maintenance
Complete the tasks listed below prior to performing
saw maintenance:
x Turn off engine and let saw cool down.
x Turn off switches and controls.
x Remove guards and access panels for easy
access.
x Disconnect electric motor saw from power
source (electric saw).
x Move fuel shutoff lever to closed or off position
(gas saw).
x Raise saw to proper height for easy access
when working underneath saw, and place jack
stands or blocks under frame edges at front and
back of frame.
Maintenance Overview
Complete the following maintenance tasks as
required. DO NOT delay maintenance! Print the
Daily Maintenance Task Chart from the Index to
keep track of the maintenance tasks completed.
Daily/Regularly
x Lubricate blade shaft bearing grease fittings
daily, or two to three times daily when dry
cutting.
x Inspect belts after first four hours of use, and
then daily for tension and wear. Replace or re-
tension as necessary.
x Inspect saw for damages.
x Tighten loose nuts and bolts.
x Clean air filter daily, or two to three times daily
when dry cutting (see engine manual).
x Check fuel level and fill as necessary.
x Check engine oil level and fill as necessary
(see engine manual).
x Wipe down saw’s exterior.
x Wipe down engine/motor exterior and guards.
x Look for fluid leaks.
Note: Refer to the engine/motor manual and
manufacturer for a full maintenance schedule and
additional maintenance information.
Handlebars
The handlebars generally require little or no
maintenance and, when used correctly, should
remain in good, working condition. Inspect the
handlebars occasionally for bending, unusual
cracks, and/or breakage. Replace them
immediately when damaged.
Part Lubrication
Lubricating parts on schedule increases the saw’s
efficiency and life. Use NLGI No. 2 premium
lithium-based grease when lubricating parts.
Blade Shaft
Lubricate both blade shaft bearing grease fittings at
the end of the workday, or two to three times daily
when dry cutting. Always grease the fittings with the
engine/motor running at idle (extremely low
speed!). Use one full pump of grease when
greasing the blade shaft fittings.
WARNING
x DO NOT grease parts
with the engine running
unless stated otherwise.

19
Axle
Lubricate both flange block bearing grease fittings
every 40 hours of operation.
Adjustment Shaft
Lubricate the adjustment shaft grease fitting every
100 hours of operation. Lubricate the adjustment
shaft flange block bearing grease fitting every 100
hours of operation.
Inner Blade Flange
The inner blade flange may be taken off of the
blade shaft to clean/replace the part.
Wheels
Front Wheels
Inspect the front wheels regularly for damages or
wear and replace as necessary.
Installing the Inner Blade Flange
1. Inspect the inner blade flange for damages and
clean or replace as necessary.
2. Place the flange onto the tapered portion of the
blade shaft.
3. Apply Loctite 262 (red) or an equivalent to the
setscrew threads.
4. Place the setscrew into the flange’s setscrew
hole and tighten the screw down to the blade
shaft key to secure the flange. Note: Always
make sure the flange is secure prior to
operating the saw.
Removing the Inner Blade Flange
1. Remove the setscrew from the back of the inner
blade flange using an Allen wrench.
2. Remove the flange from the blade shaft.
1. Raise the saw to gain access to the front
wheels.
2. Remove the setscrews from the set collar.
3. Remove the set collar and wheel from the
wheel shaft.
4. Place a new wheel onto the wheel shaft and
slide it to the back of the shaft.
5. Place the set collar against the wheel on the
wheel shaft.
6. Tighten the setscrews into the set collar to
secure the wheel.
WARNING
x Raise the saw to a proper
height for easy access when
working underneath the saw,
and place jack stands or
blocks under frame edges at the front and
back of the frame.
x Always wear safety glasses
when removing retaining
rings.

CAUTION
x Always let the belts cool down prior to
performing belt maintenance.
7. Repeat steps 2–6 to replace the second wheel.
Rear Wheels
Inspect the rear wheels regularly for damages or
wear and replace as necessary.
1. Remove the setscrews from the set collar.
2. Remove the set collar and wheel from the
wheel shaft.
3. Place a new wheel onto the wheel shaft and
slide it to the back of the shaft. Note: Make sure
the spacer washer is behind the wheel
4. Place the set collar up against the wheel on the
wheel shaft.
5. Tighten the setscrews into the set collar to
secure the wheel.
6. Repeat steps 1–5 to replace the second wheel.
Blade Drive Belts
Note: Over-tensioning the belts may damage the
engine crankshaft. Under-tensioning the belts may
cause shorter belt life and/or poor saw
performance. Squealing belts indicate looseness.
Tensioning the Blade Drive Belts
1. Inspect the belts for fraying, stress cracks,
and/or breakage and replace immediately when
damaged.
2. Test the belt tension. Proceed to step 3 if the
belts need tensioning (refer to the Belt Tension
Settings in the Index for proper tension setting).
Operate the saw as needed if no tension
adjustments are required.
3. For engines without the adapter plate or
adapter mounts; there are four screw/nut
assemblies securing the engine/motor to the
frame through the frame slots. Loosen the nut
on each screw.
4. For engines with the adapter plate or adapter
mounts; there are four screw/nut assemblies
securing the adapter plate or adapter mounts to
the frame through the frame slots. Loosen the
nut on each screw.
Figure 26: Engine without Adapter Plate/Mounts
5. Turn the belt adjustment shaft nut clockwise to
tighten the belts.
Figure 27: Adjustment Shaft and Nut
20
WARNING
x Turn off the engine prior to
performing belt maintenance.