Diamond CC7074 User Manual

DIAMOND
P R O D U C T S
OPERATOR’S MANUAL
MODEL:
CC7074
Manual # 1801371
Page1
Table of Contents
Safety Precautions ................................................. 1
Safety Alerts ................................................................ 1
Proposition 65 ............................................................. 1
Spark Arrester Requirement ....................................... 1
Respiratory Hazards ................................................... 1
General Safety ............................................................ 2
Battery and Electrical Safety ....................................... 2
Blade Safety ................................................................ 3
Blade Guard Safety..................................................... 3
Fuel Safety .................................................................. 3
Engine Safety .............................................................. 4
Cutting Safety ............................................................. 4
Hydraulic Safety .......................................................... 4
Belt Safety ................................................................... 4
Transporting Safety..................................................... 4
Introducing the CC7074 ......................................... 7
Controls ....................................................................... 7
Dimensions ................................................................. 9
Specifications ............................................................ 10
Operating the CC7074 ......................................... 11
Tie-Downs ................................................................. 11
Footrest ..................................................................... 11
Weight Bar (Optional) ............................................... 11
Spotlight .................................................................... 11
Handlebars ................................................................ 11
Adjusting the Handlebars .............................................. 11
Fuel System .............................................................. 12
Adding Fuel ................................................................... 12
Blade Guard .............................................................. 12
Installing the Blade Guard ............................................. 12
Removing the Blade Guard ........................................... 13
Flange Guard ............................................................ 13
Installing the Flange Guard ........................................... 13
Removing the Flange Guard ......................................... 13
Diamond Blades ........................................................ 13
Inspecting the Blade ..................................................... 13
Blade Speed ................................................................. 14
Wrench ......................................................................... 14
Installing the Blade ........................................................ 14
Removing the Blade ...................................................... 15
Engine ....................................................................... 15
Tasks Prior to Starting the Engine ................................ 16
Starting the Engine ....................................................... 16
Stopping the Engine ...................................................... 16
Speed Control Lever ................................................. 16
Blade Lowering Speed .............................................. 17
Water Supply ............................................................ 17
Using the Water Supply ................................................ 17
Cutting Guides .......................................................... 17
Adjusting the Front Pointer ........................................... 17
Adjusting the Rear Pointer(s) ........................................ 18
Concrete Cutting ....................................................... 18
Helpful Hints Prior to Cutting ........................................ 18
Tasks Prior to Cutting ................................................... 18
Making a Cut ................................................................ 18
Making a Cut Using the Blade Depth Stop ................... 19
Continuing a Partial-Cut................................................ 19
Finishing a Cut .............................................................. 19
Maintaining the CC7074 ....................................... 21
Maintenance Overview ............................................. 21
Daily ............................................................................. 21
Every 100 Hours ........................................................... 21
Every 250 Hours ........................................................... 21
Every 500 Hours ........................................................... 21
Part Lubrication ........................................................ 21
Water Filter Strainer (Optional) ................................ 21
Speed Control Lever ................................................. 22
Adjusting the Lever Tension ......................................... 22
Adjusting the Spring Plungers ...................................... 22
Inner Blade Flange ................................................... 22
Installing the Inner Blade Flange .................................. 22
Removing the Inner Blade Flange ................................ 22
Drive Alignment ........................................................ 22
Drive Alignment ............................................................ 22
Wheels ...................................................................... 22
Replacing the Front Wheels ......................................... 23
Replacing the Rear Wheels .......................................... 23
Maximum Cutting Depth ........................................... 23
Handlebar Cylinder Rod ........................................... 24
Removing the Cylinder Rod .......................................... 24
Connecting the Cylinder Rod ........................................ 24
Battery ...................................................................... 24
Battery Type ................................................................. 25
Servicing the Battery .................................................... 25
Electrical System ...................................................... 25
Radiator .................................................................... 25
Adding Radiator Fluid ................................................... 25
Changing the Radiator Fluid ......................................... 26
Hydraulic System ...................................................... 26
Adding Fluid to the Hydraulic Lift Pump ........................ 26
Adding Hydraulic Fluid to the Reservoir Tank ............... 27
Replacing the Hydraulic Oil Filter ................................. 27
Upper Gearbox ......................................................... 27
Changing the Upper Gearbox Oil ................................. 27
Draining the Upper Gearbox Heat Sink ........................ 27
Lower Gearbox ......................................................... 28
Changing the Lower Gearbox Fluid .............................. 28
Cleaning the In-Line Oil Suction Filter .......................... 28
Belt Sheaves ............................................................ 28
Removing the Belt Sheaves ......................................... 28
Installing the Belt Sheaves ........................................... 29
Blade Drive Belts ...................................................... 29
Tensioning/Replacing the Blade Drive Belts ................. 29
In-Line Fuel Filter ...................................................... 30
Engine ...................................................................... 30
Cleaning the Engine ..................................................... 30
Air Cleaner ................................................................ 31
Restriction Indicator ...................................................... 31
Rubber Dust Ejector Boot ............................................. 31
Cleaning/Replacing the Outer Primary Filter ................. 31
Replacing the Inner Safety Filter ................................... 32
Storing ....................................................................... 33
Disposal .................................................................... 33
References .......................................................... 35
Appendix A ................................................................ 35
Serial Tags .................................................................... 35
Appendix B ................................................................ 36
Daily Maintenance Task Chart ...................................... 36
Appendix C ............................................................... 37
Belt Tension Settings .................................................... 37
Appendix D ............................................................... 38
Troubleshooting ............................................................ 38
Appendix E ................................................................ 39
Additional Resources .................................................... 39
Safety Precautions
Operate the CC7074 Concrete Saw and all of its components according to this manual. Failure to comply with and understand the following safety, operation and maintenance instructions can result in serious injuries and/or death. All operators must be properly trained or supervised by experienced personnel prior to using this saw and should understand the risks and hazards involved. Diamond Products discourages improper or unintended saw usage and cannot be held liable for any resulting damages.
Saw 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 saw warranties if a problem arises as a result of the modification.
Refer to the CC7074 Parts List for additional information and part diagrams. Refer to the engine manual and manufacturer as the primary source for all safety, operations, and maintenance instructions regarding the engine. Prior to operating, record the saw’s serial number, and the engine’s model and serial numbers in Appendix A.
Notice: The information in this manual may be updated at any time!
Safety Alerts
DANGER
Serious injuries and/or death will occur if these instructions are not followed.
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.
Proposition 65
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.
Spark Arrester Requirement
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.
Respiratory Hazards
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:
 Wearing gloves.  Wearing safety goggles or a face shield.  Using approved respirators.  Washing work clothes daily.  Using water when wet cutting to minimize
dust.
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).
1
General Safety
Read and understand all safety, operations, and
maintenance instructions provided in this manual prior to operating or servicing the saw.
Keep saw components clean and free of slurry,
concrete dust, and debris.
Inspect water hoses prior to operating the saw.
Clean, repair, or replace damaged components.
Raise the saw to a proper height for access when
working underneath the saw. Use chocks to block the wheels, and fit blocks or jacks under the frame edges.
WARNING – Do NOT work on saw using the hydraulic lift system to keep the saw in the raised position for maintenance or repair. Accidental loss of hydraulic pressure could cause the saw to drop suddenly, causing serious injury or death.
When using a jack to raise the saw, place the jack
against a solid, flat area under the frame base to properly support the saw.
Repair the saw immediately when a problem arises.  Replace saw decals if unreadable.  Dispose of all hazardous waste materials according
to city, state, and federal regulations.
Always have a phone nearby, and locate the nearest
fire extinguisher and first aid kit prior to operating the saw.
Operate the saw wearing flame resistant clothing.  Always wear safety glasses when removing retaining
rings.
Persons under the statutory age limit should not
operate the saw.
Keep all body parts away from rotating machinery.  Replace all guards and access panels (unless stated
otherwise) prior to operating the saw.
Always pivot front of blade guard fully to avoid
serious injuries.
DO NOT assume the saw will remain still when in
neutral or when parking/stopping the saw on a slope. Chock the wheels to help prevent unnecessary movement.
DO NOT:
Drop equipment, supplies, tools, etc., when handling  Lift and carry equipment, supplies, tools, etc., that
to help prevent injuries. are too heavy and/or cannot be lifted easily.
DO NOT (cont.)
Operate the saw without using the appropriate
safety equipment required for the work task.
Operate or service the saw with any clothing, hair, or
accessories that can snag in the machinery, which could lead to serious injuries or death!
Operate the saw using attachments not associated
with or recommended for the saw.
Operate the saw around combustible materials or
fumes to prevent fires/explosions.
Operate the saw with anyone near the work area or
within the direct line of the blade.
Operate the saw until all unnecessary materials
have been removed from the work area.
Operate the saw with loose nuts, screws, and bolts.  Operate the saw when ill or fatigued.  Operate the saw under the influence of drugs and/or
alcohol.
Operate the saw on steep slopes.  Cut concrete with guards and access panels
removed.
Grease the saw with the engine running.  Touch hot components when operating the saw.  Leave the saw unattended until the engine is off and
the blade has stopped spinning.
Place the saw into storage until it has cooled down.  Service the saw until it has cooled down.  Service the saw with the engine running.
:
Battery and Electrical Safety
Ignitable explosive gases are
emitted from the battery. DO NOT expose the battery to sparks or open flames.
Keep the area around the battery well-ventilated.  Keep the battery level when handling it.  Use protective eyewear or a face shield, and avoid
contact with the skin when handling/servicing the battery.
Use a proper battery tester when testing the battery
strength.
Always be sure to connect the battery cables to the
proper terminal when reconnecting the cables.
Occasionally inspect the battery, cables, clamps,
and terminals for damages. Service components as necessary.
2
Always keep the battery cable clamps away from the
battery terminals when the battery is disconnected to avoid accidental connections while servicing.
Immediately rinse your clothing, skin, or eyes with
water if exposed to battery acid. Seek medical attention immediately!
Disconnect the battery prior to servicing all saw
components (unless stated otherwise).
Remove the battery when storing the saw for longer
periods.
Always use the correct size fuses (amps) to prevent
fires.
Blade Safety
Always use reinforced abrasive blades or steel-
centered diamond blades.
Never use a wet cutting blade without an adequate
water supply to properly lubricate the blade.
Inspect all blades prior to usage and discard
damaged blades.
DO NOT install or remove a blade with the engine
running.
Keep all body parts away from rotating blades.  Inspect the blade flanges for damages, wear, and
cleanliness. Clean or replace dirty/damaged components immediately.
DO NOT expose yourself or anyone
else to the direct line of the blade when operating the saw.
Always use an appropriate size blade and the
correct blade type based on the cutting task and the type of material being cut.
The blade must always fit snug on the blade shaft,
outer flange, and/or inner flange.
Wear gloves and be alert to the surrounding
environment when handling blades.
When installing the blade, always point the arrow
printed on the blade in the direction of the blade shaft’s rotation.
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!
DO NOT use damaged blades when cutting to avoid
harming yourself, others, or the saw.
DO NOT use a blade for cutting that requires a lower
speed than the blade shaft speed.
Always tighten the blade shaft bolt/screw as directed
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 the saw, resulting in serious injuries or death!
Let the blade cool prior to removal when dry cutting
(applicable models).
Blade Guard Safety
DO NOT operate the saw with the blade guard
raised or removed.
Blade exposure should not exceed 180° while
cutting.
When pivoting the front of the blade guard,
raise/lower it cautiously and slowly to avoid serious injuries.
DO NOT pivot the blade guard front up or down
when installing/removing very large blades. Attempting to pivot the front of a heavy guard when the guard is positioned higher up for blade installation/removal makes the guard difficult to lift and/or lower. In this situation, install/remove the blade guard front instead of pivoting it.
Always pivot the front of the blade guard
180° (fully upward) so the guard does not swing down unexpectedly, causing serious injuries.
Always secure the pivoted section of the blade
guard using the detent pin (guards 26” and up).
Use extreme caution when installing/removing parts
of a guard or the entire guard as guards can be extremely heavy and may require installation/removal at moderate heights.
DO NOT install or remove the blade guard with the
engine running.
Always use a blade guard that corresponds with the
blade size.
Inspect the blade guard and water tubes prior to
starting the saw. Clean or replace dirty/damaged components immediately.
Fuel Safety
Always use caution when refueling.  Store all fuel in appropriate safety containers.  DO NOT operate the saw with a fuel leak.  DO NOT fuel the saw with the engine running.  Let the engine cool prior to adding fuel.  Refer to the engine manual for recommended fuels.  Always use appropriate fuels in cold weather.  Move the saw away from the refueling area prior to
starting the engine.
DO NOT smoke or expose fuel to open
flames when filling the fuel tank or working with fuel.
Clean up any spilled fuel prior to starting the engine.
3
Drain the fuel tank and fuel lines when storing the
saw for longer periods of time. Refer to the engine manual for additional recommendations.
Engine Safety
Refer to the engine manual as the primary source
for engine safety.
Always know how to turn off the engine quickly for
emergency purposes.
Make sure the saw is in neutral when starting the
engine.
Fill the fuel tank and check the oil level prior to
starting the engine.
Keep all body parts away from
rotating saw parts with the engine running.
DO NOT start the engine without the air filter(s)
installed.
DO NOT allow dust to enter the air intake tube when
cleaning/replacing air filter(s).
Replace damaged components immediately that
may allow dust to enter the engine.
DO NOT leave the engine running unattended.  Always operate the saw in well-ventilated
areas. Concentrated engine exhaust can cause loss of consciousness and/or death.
DO NOT touch the engine/muffler assembly with the
engine running, and always let them cool down prior to touching or servicing the saw.
Handle hot oil carefully when changing the oil.  Let the engine cool prior to removing pressurized
caps (applicable models).
DO NOT use any starter substances or starter fluids
(e.g., starter fluid sprayed into the air filter) when starting the engine using a glow plug (applicable models). These materials are extremely flammable and explosive, and can melt parts or possibly explode when used to help start the engine.
Cutting Safety
The direct work area should not contain buried or
embedded electrical, gas, or water lines that could be damaged and/or cause personal injury while cutting.
Turn off all electricity, gas, and water around the
direct work area prior to cutting.
DO NOT expose yourself or anyone else to the
direct line of the blade when operating the saw.
DO NOT allow any person, animal, and/or objects in
and around the work area while cutting.
Hydraulic Safety
Turn off the engine prior to servicing hydraulic
components.
Lower the saw completely prior to servicing to
decrease the hydraulic pressure in the lines.
Always make sure any hydraulic components being
serviced are not supporting the weight of other saw components. If a particular component is under pressure when connection points are loosened, oil may spray out forcefully.
Always place a piece of cardboard or
paper up against hydraulic components, or use a leak detection fluid to check for hydraulic fluid leaks. Keep all body parts away from leaks and/or areas that may eject hydraulic fluid. Pressurized hydraulic fluid can penetrate the skin, causing serious injuries. Seek medical attention immediately!
Belt Safety
Turn off the engine and let the belts cool down prior
to servicing them.
Regularly inspect the belts for fraying, stress cracks,
and/or breakage and replace immediately when damaged. Always check the belt alignment prior to operating the saw.
Use extreme caution when working with belts and
rotating machine parts to avoid entanglement.
Over-tensioning belts may reduce the life of the
gearbox bearings. Under-tensioning belts may cause slippage, shorter belt life, and/or poor saw performance.
Squealing belts indicate looseness.  DO NOT use old and new belts together on the
same sheave.
Transporting Safety
Remove the blade prior to transporting the saw.  Make sure the truck/trailer is in good, working
condition and sufficient to transport the load. DO NOT tow the saw behind a vehicle.
Close the fuel shutoff valve (applicable models)
when transporting.
Drain the fuel tank when transporting long distances.  Use heavy-duty ramps that will support the weight of
the saw and yourself when loading or unloading.
Raise the saw to avoid damaging components while
moving up and down ramps.
4
Transporting Safety (cont.)
Use extreme caution when guiding the saw up and
down ramps. Slowly drive the saw forward down the ramp. Slowly back the saw in reverse up the ramp. Avoid standing directly downhill from the saw to prevent machine rollover.
Place the saw in neutral and turn off the engine once
the saw is loaded in the truck/trailer.
Chock the wheels and secure the saw in the
truck/trailer prior to transporting.
Refer to the Department of Transportation (DOT) for
additional transportation recommendations.
Lifting Safety
Move yourself and all others away from
the lifting area when hoisting the saw to prevent being crushed.
Secure the appropriate hoisting cables, straps,
and/or chains to the saw’s designated lift points prior to hoisting.
Never use the tie-down brackets (applicable models)
to lift the saw.
DO NOT attempt to lift the saw irresponsibly and/or
improperly.
5
Introducing the CC7074
Controls
6
7
8
9
10
11
12
2a
5
4
3
15
1
16
17
18
19
20
25
21
22
26
23
4
14
24
13
2b
1
1. Handlebar Lock Lever–Locks handlebar in position. 2a. Water Valve and Hose Fitting–(LH side) -
Lever controls water flow rate; hose fitting connects to water source hose.
2b. Water Valve and Hose Fitting–(RH side)-
Lever controls water flow to blade guard; hose fitting connects to water supply hose.
3. Fuel Tank Cap–Fill port; indicates fuel level.
4. Spotlight Bar Lock Knob–Locks spotlight bar
in position.
5. Blade Gearbox Temperature Light–Indicates
high oil temperature in blade gearbox.
Figure 1: CC7074 Controls
6. Radiator Cap–Fill port when adding or changing radiator fluid.
7. Cable Cleat–Secures front pointer rope.
8. Blade Lowering Speed Valve–Adjusts saw’s lowering speed.
9. Emergency Stop Button–Stops the engine.
10. Low Blade Water Light–Indicates low water pressure to blade.
11. Blade Depth Stop Switch–Sets and resets blade depth setting.
12. Blade Depth Set Light–Indicates blade depth is set.
13. Spotlight–Light source.
7
14. Cutting Depth Indicator–Indicates blade’s depth from surface.
15. Vernier Throttle–Increases or decreases engine speed.
16. Coolant Temperature Gauge–Indicates engine coolant temperature. Note: Check the cooling
system when the coolant temperature light turns on, or when the coolant temperature gauge passes the red mark.
17. Ignition Switch–Four-position switch acti v a t e s the glow plug, stops the engine, provides power to certain accessories, or starts the engine.
18. Engine Warning Light Gauge–Indicates high coolant temperature, low oil pressure, low battery voltage, and an energized glow plug.
19. Blade Tachometer/Hour Meter–Indicates blade speed and total number of saw hours operated.
20. Auto Water Switch–Activates automatic water system. Water turns on/off when depth indicator enters Auto Water On/Off Zone.
21. Free Wheel Switch–Allows operator to move saw forward/backward (with ignition switch at Run).
22. Speed Control Lever–Forward, stop (neutral), and reverse control.
23. Control Grip–Two pushbuttons on front of grip raise or lower the saw and blade. Pushbutton on side of grip tilts handlebars, allowing them to be moved up or down to desired position.
24. Blade Clutch Switch (optional)–Allows operator to engage or disengage blade rotation.
25. Spotlight Switch–Activates spotlight.
26. Water Pump Switch (optional)–Activates water pump.
8
Dimensions
Figure 2: CC7074 Dimensions
Table 1: CC7074 Dimensions Inches Millimeters
A Saw height 52-1/2" 1334 mm B Minimum Saw Length 63-1/2" 1613 mm C Maximum Saw Length 140" 3556 mm D Maximum Handle Extension 28" 711 mm E Frame Length 53-3/4" 1365 mm F Wheel Base Length 24-1/4" 616 mm G Saw Width 36-1/2" 927 mm H Frame Width 29" 737 mm
I Front wheels - Inside Width 20-1/2" 520 mm
J Rear wheels - Outside Width 27-3/4" 705 mm
K Inner Flange to Inner Flange Width 31-3/4" 806 mm L1 Ground Clearance when level 2-1/2" 63 mm L2 Ground Clearance when raised 1-3/4" 44 mm
maximum height - blade shaft(not shown) 26" 660 mm Crated dimensions (L x W x H) - 70" x 44" x 59"
9
Specifications
Table 1: CC7074 Specifications
Maximum Cutting Depth 19-3/4” with 48” blade Blade Shaft Diameter 2” Arbor Diameter 1” with single drive pin Blade Shaft Bearings Multiple ball bearings in oil bath Blade Shaft Drive 20 V-belts (four power bands) Blade Mounting Right or left Blade Raise/Lower Electro-hydraulic pump Blade Coolant Dual multi-spray tubes
Blade Guard Attachment Handlebars Length and tilt adjustable
Drive Speed 0-250 ft/min Front Wheels 8” x 3” Rear Wheels 10” x 3” Transmission Hydro pump powering dual wheel motors Uncrated Weight
(add 125 lb for crated weight)
Table 2: Engine Specifications
Manufacturer Kubota Model V3307-DI-T-E3-B Maximum Horsepower (HP) 74.3 HP @ 2,600 RPM Fuel Capacity Nine gallons Fuel Type Low sulfur/ultra-low sulfur diesel fuel Air Filter Four-stage with restriction indicator Power at Blade Shaft 70 HP
Note: Refer to the engine manual and manufacturer for additional engine information and specifications.
Slip-on through 30”, bolt-on 36” and up
2,000-2,225 lb
(weight depends on model and added options)
10
Operating the CC7074
For additional information and detailed diagrams on individual saw components, refer to the CC7074 Parts List in conjunction with this manual.
Tie-Downs
Use the tie-downs (one at the back and one at the front end of the saw) when securing the saw in a truck/trailer for transportation. DO NOT over-tighten a chain/rope to the front end tie-down, which may bend the frame and damage the saw.
Footrest
Use the footrest, if desired, to add body weight to the rear of the saw and improve the rear wheel traction when cutting.
5. Remove the weight bar as necessary.
Spotlight
1. Loosen both spotlight bar lock knobs and slide the spotlight bar from side-to-side to adjust the length of the bar.
2. Tighten the lock knobs to secure.
3. Turn the spotlight switch on or off as needed for additional lighting.
Handlebars
The handlebars help to guide and maneuver the saw. Place the handlebars in the desired position for better leverage when lifting and steering. To maneuver the saw forward or backward, turn on the Free Wheel switch and move the saw as desired (the free wheel component only works with the ignition key at Run).
Figure 3: Footrest
Weight Bar (Optional)
The weight bar (optional) adds 55 lb to the saw to improve the rear wheel traction when cutting. Note: The weight bar is a standard feature on the 48” blade saw.
1. Attach the second footrest to the back of the frame base using the screws, washers, and lock nuts provided.
2. Rest the weight bar on top of both footrests.
3. Place a flat washer onto both screws. Fit the screws through the screw holes on top of the weight bar and through the slot on both footrests.
4. Place a fender washer onto each screw underneath the footrest and secure with a lock nut.
Figure 4: Handlebar
Adjusting the Handlebars
1. Loosen the handlebar adjusting lever.
2. Move the handlebar forward or backward to adjust the length and retighten the adjusting lever to secure.
3. Press the Tilt Handlebar pushbutton and move the handlebar up or down to adjust the angle. Note: The
button only works with the ignition key at the Run position.
4. To reposition adjustment lever, pull out and move to desired lever position.
11
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