Diamond UDM User Manual

ULTIMATE DRILLING MACHINE
OPERATING SUMMARY
STARTING: The function switch at the rear
control panel must be in the center (Neutral) position between DRIVE & DRILL, and the MASTER DISCONNECT switch must be ON. Be certain both red EMERGENCY STOP switches are pulled out. The engine throttle, choke and start key are all located at the rear of the machine on the right side of the engine.
MOVING: The self propelled function only works
with the function switch in the DRIVE position. Gently raise and lower the lever on the drive valve mounted in the upper rear corner of the machine. To steer the unit, lift the rear tires of the ground and pivot to the proper location. The machine may also be move manually by lifting the rear tires off the ground and pushing or pulling. Be certain the rear legs and front mast are raised fully for maximum ground clearance.
DOWN switch to slowly start the hole. Once contact is made, switch to AUTO DRILL mode, drilling will continue until the cylinder stroke is to its maximum length or until the AUTO DRILL switch is shut off.
The DRIIL DOWN, DRILL UP, and TURBO switches will NOT operate when the AUTO DRILL mode is on.
TWO SPEED DRILL MOTOR: Set to high speed for
drills up to 10” in diameter (Shift Clockwise) and low speed for drills greater then 10” (Shift Counter Clockwise).
IMPORTANT! A red emergency stop button is at the rear and side controls panels. This will stop the engine and shut down all hydraulic and electrical systems. These buttons must be in the out position to start the engine.
DRILLING: The labels at the front controls
summarize the typical drilling operation. Please read them and review the following additional information.
After positioning the drill, put the function switch in the upper DRILL position. This activates the controls on the front dash panel. Be certain the circuit breakers at the rear electrical outlet panel are on as AC power is required by the vacuum pump.
The DRILL DOWN, DRILL UP, and TURBO switches are intermittent and must be held in to operate. Holding UP or DOWN and TURBO will raise or lower the drill more rapidly for initial positioning or pulling bit out of hole. To adjust the speed of cylinder stroke, hold up or down and turn the small black knob at the upper right of the manifold control. This is also the maximum speed the drill can move while in AUTO DRILL mode and should be set low. With the drill set to the proper RPM, gently jog
Table of Contents
Safety P r ecautions
1
Safety Alerts
1
Proposition 65
1
Spark Arrester Requirements
1
Repertory Hazards
1
General Safety
2
Battery & Electrical Safety
2
Drill Safety
3
Fuel Safety
3
Engine Safety
3
Hydraulic Safety
4
Belt Safety
4
Transportation Safety
4
Lifting Safety
4
Introduction to The UDM
5
Components
5
Controls
6-7
Dimensions & Specifications
8
Operating The UDM
9
Light Tower
9
Lift Points
9
Fuel System
9
Battery
9
Engine
10
Drive Lever
10
Water System
11
Vacuum System
11-12
Drill Mode
12
Diamond Core Bits
13
Stuck Cores
15
Stuck Bits
16
Maintaining UDM
17
Maintenance Overview
17
Part Lubrication
17
Tires
17
Battery
18
Electrical System
18
Hydraulic System
19
Belt System
19
Engine
20
Storage
20
References
21
Appendix A Serial Tags
21
Appendix B Maintenance Chart
21
Appendix C Belt Tensioning
22
Appendix D Additional Resources
22
Appendix E Troubleshooting
23
Parts Manual
24
UDM Overview
24
Drive Train Assembly
25
Drive Axle Assembly Alternator Assembly Water & Vacuum Systems Vacuum Pump Assembly Electrical Outlet Box Dash Panel Assembly Rear Stabilizer Assembly Vacuum Base Assembly Drill Mast Assembly Hydraulic System Pillow Block Assembly Decal Kit Wiring Diagram Maintenance Records Warranty Information
27 28 29 31 32 34 36 37 38 40 43 44 45 46 47

Safety Precautions

1
Operate the Ultimate Drilling Machine (UDM) and all of its components according to this manual. Failure to comply with and understand the following safety, operations, 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 the machine and should understand the risks and hazards involved. Improper or unintended machine usage is discouraged and Diamond Products cannot be held liable for damages.
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 if a problem arises as a result of the modification.
Refer to the UDM 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 machine’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
Serious injuries and/or death will occur if these instructions are not followed.
Serious injuries and/or death could occur if these instructions are not followed.
Mild and/or moderate injuries could occur if these instructions are not followed.
Proposition 65
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
In the State of California 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.
it is a violation of Section
Respiratory Hazards
Concrete drilling 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).

General Safety

2
Read and understand all safety, operations,
and maintenance instructions provided in this manual prior to operating or servicing the machine.
Keep the machine clean and free of slurry,
concrete dust, and debris.
Inspect water hoses prior to operating the
machine. Clean, repair, or replace damaged components.
Repair the machine immediately if a problem
arises.
Replace machine 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 machine.
Persons under the statutory age limit should not
operate the machine.
Operate the machine wearing flame resistant
clothing.
Always let the machine cool after operating to
prevent serious burns.
Replace all guards and access panels prior to
operating the machine.
DO NOT operate the machine around
combustible materials or fumes to prevent fires/explosions.
Fit blocks/jacks under the frame edges at the
front and back of the frame for support when working under the machine.
All non-routine maintenance tasks should be
performed by an authorized service center.
DO NOT:
Drop equipment, supplies, tools, etc., when
handling to prevent injuries.
Lift and carry equipment, supplies, tools, etc.,
that are too heavy.
Operate the machine without using the
appropriate safety equipment required for the work task.
Operate or service the machine with clothing,
hair, or accessories that can snag in the machinery.
Operate the machine using attachments not
associated with or recommended for the machine.
Operate the machine with anyone near the
work area.
Operate the machine until unnecessary
materials have been removed from the work area.
Operate the machine with loose nuts, screws,
and bolts.
Operate the machine when ill or fatigued.

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 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 accidental 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 equipment connected
through the electrical outlets prior to servicing the machine.
Do not plug external equipment into the
electrical outlets that requires more power than the outlets are rated for.
Always use the correct size fuses (amps) to
prevent fires.
Disconnect the battery prior to servicing the
electrical system unless stated otherwise.
DO NOT use the electrical outlets for equipment
that requires more power than the outlets are rated for.
Drill Safety
Inspect all core bits prior to usage and discard
damaged bits. Remove debris from bits and clean as necessary.
Keep all body parts away from rotating core
bits.
Always use an appropriate size bit for the drilling
task. The bit must fit tightly on the spindle shaft.
Wear gloves and be alert to the surrounding
environment when handling core bits.
Always use the correct bit type for the material
being drilled.
Always start the engine with the function switch
at Start/Drive.
DO NOT exceed the core bit’s maximum
recommended speed when drilling.
DO NOT use damaged core bits when drilling to
avoid harming yourself, others, or the machine.
DO NOT activate the spindle shaft when
installing a core bit by hand to avoid entanglement.
Failure to properly secure the core bit to the
spindle shaft may cause the bit to loosen or fall off the machine.
Raise the core bit/pillow block assembly to a
sufficient height when maneuvering the machine to provide proper clearance between the bit/spindle shaft and the ground.
Remove all body parts from under the core bit
when releasing the bit from the spindle shaft.
DO NOT stand on the machine to act as an
anchor. Use the vacuum pump to anchor the machine.
Always make sure the mast is firmly touching the
ground prior to drilling.
The work area should not contain buried or
embedded electrical, gas, or water lines.
Turn off all electricity, gas, and water lines
around the work area prior to drilling.
Use extreme caution when drilling through
floors. Another trained worker must clear the surrounding area on the lower floor prior to drilling in case the core falls to the lower floor.
DO NOT allow any person, animal, or object in
and around the work area when drilling.
Excessive drilling speeds at first
contact with the concrete surface can cause bit breakage, resulting in serious injuries and/or death.
Use extreme caution when operating the
machine on slopes, as it is more susceptible to sideways tipping/rolling over, especially with a full water tank.
When driving the machine forward or
backward, be alert to the surrounding environment.
When parking the machine on a slope, lower
the rear legs and front mast or chock the tires to prevent rolling.
Fuel Safety
Store all fuel in appropriate safety containers. DO NOT operate the machine with a fuel leak. DO NOT fuel the machine with the engine
running.
Let the engine cool prior to adding fuel. Refer to the engine manual for recommended
fuels.
DO NOT smoke or expose fuel to
open flames when filling the fuel tank or working with fuel.
Clean up spilled fuel prior to starting the engine. Move the machine away from the fueling area
prior to starting the engine.
Drain the fuel tank and fuel lines for longer
storage periods. Refer to the engine manual for additional information.
Engine Safety
Refer to the engine manual as the primary
source for engine safety.
Always know how to turn off the engine for
emergency purposes.
Fill the fuel tank and check the oil level prior to
starting the engine.
DO NOT leave the engine running unattended. Keep all body parts away from
rotating machine 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).
Immediately replace damaged machine
components that may allow dust to enter the engine.
Always operate the machine in
well-ventilated areas. Concentrated engine exhaust can cause loss of consciousness and/or death.
Wipe down the engine’s exterior and oil cooler
daily/regularly to prevent high operating temperatures. DO NOT spray the engine with water to prevent engine damage.
DO NOT touch the engine/muffler assembly with
the engine running, and always let the parts cool down prior to touching them or servicing the machine.
Handle hot oil carefully when changing the oil.

Hydraulic Safety

4
Turn off the engine prior to servicing the
hydraulic system.
Turn off the engine prior to disconnecting
hydraulic hoses.
Pay attention to the hydraulic oil thermometer.
The maximum recommended oil temperature is 180°F.
Remove the core bit to reduce residual pressure
in the cylinder circuit prior to servicing the machine.
DO NOT use external hydraulic equipment that
requires a higher flow rate than what the machine is rated for.
Always use a piece of cardboard or
paper 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!
Refer to the Department of Transportation (DOT)
for additional information on proper transportation techniques and truck/trailer requirements.

Lifting Safety

Move yourself and all others
away from the lifting area when hoisting the machine to prevent being crushed underneath.
Secure the appropriate hoisting cables, straps,
and/or chains to the machine’s designated lift points on the frame prior to hoisting it.
DO NOT attempt to lift the machine irresponsibly
and/or improperly.

Belt Safety

Turn off the engine prior to servicing the belts.
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.
Over-tensioning the belts may damage the
engine crankshaft. Under-tensioning the belts may cause slippage, shorter belt life, and poor alternator performance.
Make sure the belts are aligned prior to
operating the machine.

Transporting Safety

Close the fuel shutoff valve when transporting
the machine.
Drain the fuel tank when transporting the
machine long distances.
Use heavy-duty ramps that will support the
weight of the machine and yourself when loading or unloading.
The towing truck/trailer should be in good
working condition.
Use extreme caution when guiding the machine
up and down ramps. Slowly drive the machine forward down the ramp, or slowly back the machine in reverse up the ramp. Avoid standing directly downhill from the machine to avoid serious injuries.
Turn off the engine once the machine is loaded
into the truck/trailer.
Chock the wheels and secure the machine in
the truck/trailer prior to transporting.

Introducing the UDM

1. Handlebar
5
Components
The UDM is a self-contained, self-propelled drilling machine with electric and hydraulic power outlets.
2. Handlebar Lock Pin/Knob
3. Water Tank
4. Front Control Panel
5. Light Tower
6. Heat Exchanger
7. Frame
8. Alternator
9. Vacuum Base
10. Mast
11. Hydraulic Oil Tank
12. Main Hydraulic Manifold
13. Spindle Shaft
14. Pillow Block
15. Hydraulic Cylinder
16. Rear Control Panel and DC
Fuses
17. Engine
18. Front Tires
19. Rear Tires
20. Drive Lever
21. Electrical Outlets and Circuit
Breakers

Controls

1. Strobe Light – Powers strobe light.
12. Vacuum Valve – Holds or releases vacuum.
6
Side Control Panel
2. Power Indicator - Indicates power supply to
machine.
3. Vacuum Switch – Turns vacuum pump ON/OFF.
4. Rear Stabilizer Switch – Raises and lowers rear
stabilizer.
5. Vacuum Lift Switch – Raises and lowers vacuum
base.
6. Digital Readout – Indicates Bit RPM.
7. Auto Drill Switch – Locks the drill down function
until cylinder reaches maximum length, or until
switch is turned off. Drill Down, Drill Up, and Turbo
buttons do not work when Auto Drill switch is
activated.
8. Drill Up Push Button – Raises Core Bit.
9. Emergency Stop – Stops engine and all systems of
machine.
10. Drill Down Pushbutton – Lowers core bit.
11. Pressure Switch Adju ster –Adjust pressure to core
bit.
13. Vacuum Gauge – Indicates vacuum pressure.
14. 3000 PSI Pressure Gauge – Indicates drive motor,
drill motor, or hydraulic outlet pressure.
15. Pressure Indicator- Indicates too much pressure is
being applied to core bit.
16. Turbo Button – Raises or lowers core bit at
maximum speed. Turbo button must be pressed
while holding Drill Down or Drill Up to indicate
direction. Turbo button does not work when Auto Drill switch is activated
17. 500 PSI Pressure Gauge- Indicates cylinder pressure when drilling.
18. Drill RPM Adjustment – Increases or decreases core bit rpm.
19. Cylinder Speed Adjuster – Increases or dec reas es core bit’s maximum raise and lower speed.
20. Work Light – Powers work light on mast.
21. Water Pump Switch – Turns water pump ON/OFF.
Controls
7
Rear Dash Controls
1. Mastery Battery Disconnect – Connects or disconnects battery circuit. NOTE: Always
disconnect when finished operating machine.
2. Function Switch – Three position switch. Up position is Drill mode, center is Start/Neutral Mode,
and down position is Drive Mode.
3. Emergency Stop Button – Stops engine and all systems of machine.
Ultimate Drilling Machine Specifications
Overall Height
81.75”
Overall Width
31.00”
Overall Length
73.25”
Overall Length W/ Handlebars Extended
99.25”
Weight (Add 450lbs. For Fuel, Hydraulic Fluid, and Water)
1100 lbs.
Core But Diameter
4.00”-24.00”Ø
Spindle Shaft Thread
1.25”-7.00”
Belt Drive
Single Belt
Core Bit Coolant
Water
Handle Bars
Single Position, Variable Lengths
Drive Speed
3.25 MPH Maximum
Electrical Power
5000 Watts
Electrical Outlets
115V and 230V single phase twist lock, 115V GFI.
Hydraulic Power Supply
2000 PSI Maximum
Hydraulic Power Flow Control
14 GPM
Hydraulic Quick Disconnects
½”
Fuel Capacity
9.00 Gallons
Water Tank Capacity
44 Gallons
Hydraulic Tank Capacity
12 Gallons
Engine Tachometer / Hour Meter
Standard
Core But RPM Tachometer
Standard
Work light
Standard
Strobe Light
Standard
Hole Locator
Standard
Engine Specifications
Manufacturer
Honda
Model
GX660
Fuel Type
Unleaded Gasoline
Air Filter
Dual Element
Low Oil Alert
Standard
Electric Start
Standards
NOTE: Refer to engine manual for additional engine specifications and info.
73.25”
81.75”
31.00”
8
Light Tower
9
Use the strobe light to alert others when operating the machine. Use the spotlight for additional lighting as necessary.
Fuel System
DO NOT operate the machine with a fuel leak. DO NOT fuel the machine with the engine running. DO NOT smoke or expose fuel to open flames when filling the fuel tank or working with fuel.
Clean up spilled fuel prior to starting the engine.
Fueling the Machine
1. Turn off the engine and let the machine cool
down.
2. Remove the fuel tank cap.
3. Fill the fuel tank with unleaded gasoline as
necessary. Refer to the engine manual for fuel ratings and additional refueling information.
4. Replace the fuel tank cap.
Lift Points
There are two welded loops, one on each side of the frame at the rear of the machine, and there is one shackle near the top of the frame column at the front of the machine. Secure the lifting cables, straps, and/or chains to these three points and adjust them so the overall lift point is near the front axle. Note: The empty
center of gravity is just behind the front axle. This location will shift toward the rear slightly with a full water tank.
Fuel Shutoff Valve
5. Open the shutoff valve to open the fuel lines.
6. Close the shutoff valve to close the fuel lines.
Battery
Ignitable explosive gases are emitted from the battery. DO NOT expose the battery to sparks or open flames, and keep the area around the battery well­ventilated.
Use a proper battery tester when testing
the battery strength. Use protective eyewear or a face shield and avoid any contact with the skin when handling/servicing the battery
The machine contains a charged battery with one positive cable lead and one negative cable lead.
Master Battery Disconnect
The master battery disconnect connects or disconnects the battery’s circuit. Note: The master
battery disconnect must be on prior to starting the engine.
10
1. Turn on the master battery disconnect to
connect the circuit (the indicator light directly
below will light up when activated). Note: The
strobe light, spotlight, water pump, and rear and front raise/lower cylinders will operate with the engine off and master battery disconnect on. Be careful not to drain the battery when using these items with the engine off and battery connected.
2. Turn off the master battery disconnect to
disconnect the circuit.

Engine

Stopping the Engine
DO NOT leave the machine unattended
until the engine is off and the core bit has stopped spinning.
1. Turn off all switches/controls.
2. Move the function switch to Start/Drive.
3. Decrease the throttle to Min.
4. Turn the ignition key to Off and remove the key.

Drive Lever

DO NOT leave the engine running unattended.
Operate the machine in well­ventilated areas. Concentrated engine exhaust can cause loss of consciousness and/or death.
Refer to the engine manual as the primary source for information regarding the engine.
Tasks Prior to Starting the Engine
Complete the tasks listed below prior to starting the engine to ensure a proper start.
Check fluids and fill to appropriate levels.
Turn off controls and switches.
Pull out emergency stop buttons.
Set engine throttle to Min.
Remove tools from work area.
Raise core bit off ground.
Starting the Engine
1. Open the fuel shutoff valve.
2. Move the function switch to Start/Drive. Close
the choke on the engine (not required on warm
engine).
3. Turn on the master battery disconnect.
4. Increase the throttle by 1/3.
5. Insert the ignition key, turn to Start, and release
when the engine starts. If the engine doesn’t start, release the key and try again after 10
seconds. Note: Refer to the engine manual if the engine doesn’t start after several attempts.
6. Gradually open the choke as the engine warms
up.
7. Increase the throttle on the engine to Max.
When driving the machine forward or backward, be alert to the surrounding environment to avoid harming yourself, others, or the machine.

The drive lever moves the machine at variable speeds based on its position. The maximum driving speed with the engine running is ~3.25 mph. Use the handlebars to lift the rear tires off the ground and pivot, push, or pull the machine manually.

1. Move the function switch to Start/Drive.
2. Push the drive lever down to move the machine forward. Release the lever to stop.
3. Pull the drive lever up to move the machine in reverse. Release the lever to stop.
Water System
11
Use extreme caution when operating the machine on slopes, as it is more susceptible to sideways tipping/rolling over, especially with a full water tank.
The water system cools the core bit and flushes slurry from the drilling hole. Note: Always test the
water supply for adequate pressure and flow prior to drilling.
Filling the Water Tank
Filling the Water Tank
1. Remove the water tank cap(s) and fill the tank
with water as necessary. Note: The clear hose at the rear of the tank indicates the water level.
2. Replace the cap(s) when finished.
NOTE: Too much water makes the slurry look clear
and waste water, insufficient water makes slurry thick and can result in a core sticking in bit.
Draining Water System
1. Be certain the area is safe for draining
water.
2. Open large valve located on the front right
side of machine.
3. Complete draining is only required in areas
where temperatures result in freezing, or machine is going to be stored for a long period of time.
Vacuum System
DO NOT stand on the
machine to act as an anchor. Use the vacuum pump to anchor the machine.
The vacuum system is only used during the drilling operation when the base is firmly on the ground; this adds stability to the system and should be used whenever possible. Cleaning and wetting the surface with the garden hose helps to ensure a proper seal.
Using the Water Supply
1. Open the water valve directly under the water
tank. DO NOT confuse this valve with the water release valve, which is located near the side of the tank.
2. Turn on the Water switch.
3. Open the water valve.
4. Adjust the water flow valve to increase or
decrease water flow to the core bit. Note: Using
too much water when drilling will make the slurry look clear. Not using enough water will make the slurry look thick and pasty, and could result in a stuck bit.
5. Use the attached water hose for cleaning or
other tasks as needed. This hose functions as a typical garden hose. Note: Turn on the master
battery disconnect to use the water hose with the engine off. DO NOT drain the battery.
6. Decrease the water flow and close the water
valve when finished.
7. Turn off the Water switch. Note: Always turn off
this switch when finished drilling to avoid draining the battery.
Using the Vacuum
1. Turn on the circuit breakers.
2. Close the vacuum valve on side dash.
3. Turn on the Vacuum switch.
4. Open the vacuum valve to release suction
when finished.
5. Turn off the Vacuum switch.
Vacuum Gauge
The vacuum gauge indicates that the vacuum system is working. Vacuum pressure should max out
at 25” Hg. Note: Poor vacuum suction may indicate loose hose fittings; loose water trap jars; worn vacuum base seals; or the base may be placed over a cracked/scored surface where suction is not possible.
Water Jars
12
The primary jar is mounted on the water tank next to the side dash unit and helps keep water and other contaminates from being sucked into the pump. The secondary jar is located adjacent to the vacuum pump behind the form right wheel of the machine. Visually inspect and empty the containment jar on a regular basis. The jars unscrews by hand. Failure to empty this jar will result in vacuum pump damage.
Primary Water Jar
Secondary Water Jar
Drill Mode
Introduction and Initial Settings: The following items can only be used or adjusted with the function switch in DRILL mode. The recommended pressure settings are maximum limits. They will typically only be reached intermittently if rebar or hard spots are encountered when drilling.
Cylinder Pressure The cylinder pressure controls how hard the bit
pushes downward. The pressure is factory set at 200 psi and should rarely need adjustments. Monitor the cylinder pressure using the 500 psi gauge on the main hydraulic manifold and adjust to the factory setting as necessary.
1. Start the engine.
2. Move the function switch to Drill.
3. Turn off the Drill Rpm cartridge.
4. If no bit is attached to the machine, press the
Drill Down button to fully extend the cylinder. If a bit is attached to the machine, place a sturdy block of wood under the bit and press the Drill Down button to push the bit against the piece of wood (as if trying to lift the front end of the machine).
5. Holding the Drill Down button, adjust the
Cylinder Pressure Base End valve on the main hydraulic manifold to adjust the cylinder pressure. DO NOT exceed 200 psi when drilling without the vacuum. Note: Use caution and
good judgment when increasing the pressure above 200 psi, which will increase the risk of jammed bits.
6. Press the Drill Up button to raise the cylinder for
proper ground clearance.
Cylinder Speed While holding the drill DOWN switch, turn the small black knob at the top right of the main hydraulic manifold. This sets the maximum speed the drill can move (unless in TURBO mode) and should be set to the slow end of the adjustment, Slow speed is particularly important at initial drill to ground contact. This setting should rarely need adjustment.
Drill Motor Pressure Switch
Cylinder Speed
Adjustable
13
An adjustable pressure switch monitors the drill motor pressure and will automatically shift the cylinder to neutral (stops pushing) if it senses the drill motor pressure rises above 1500 psi (hard spots). The cylinder will then automatically cycle ON/OFF as the drill works through rebar or other hard spots.
DO NOT exceed the core bit’s
maximum recommended speed when drilling. Excessive drilling speeds at first contact with the concrete surface can cause bit breakage, resulting in serious injuries and/or death.
DO NOT use damaged core bits when
drilling to avoid harming yourself, others, or the machine.
Diamond Core Bits
Using the proper core bit (size and type) preserves the bit and improves drilling and operator efficiency, resulting in lower costs. Refer to www.diamondproducts.com for additional drilling and core bit information.

Inspecting the Core Bit

Inspect each core bit prior to installation and discard all damaged bits. Inspect all core bits for:
Raising and Lowering the Drill The DRILL DOWN, DRILL UP, and TURBO switches are intermittent switches and must be held to operate. Holding UP or DOWN and TURBO will raise and lower the drill more rapidly for initial positioning and quickly pulling a bit out of a hole. These switches will not work when the AUTO DRILL mode is selected.
Raising and Lowering Frame and Mast To establish a more solid base, the pneumatic tires are raised off the ground. This same action places the vacuum base firmly on the ground. Electric cylinders at the front and rear of the machine are controlled by intermittent switches located on the main side control panel. The frame should be raised until the front tires are just clear of the ground. Independently adjusting the front and rear controls allows slight leveling of the machine.
Pressure Switch
Adjuster
Cracks, nicks, and dents on barrel
Darkness and/or discoloration near
edge of bit
Uneven wear
Missing segments
Bent segments
Segment cracks

Core Bit Speeds

Refer to the chart on the machine for the recommended core bit speeds when drilling. DO NOT exceed the maximum recommended drilling speed.

Installing a Core Bit

Be extremely careful when
installing a core bit by hand with the spindle shaft activated to avoid entanglement.
Failure to properly secure the core bit to the
spindle shaft may cause the bit to loosen or fall off the machine.
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