Document1.doc

SPECIFICATIONS FOR BORING AND SUBSURFACE

EXPLORATION DRILL MACHINE

ITEM: One relatively lightweight combination auger, core, and rotary type boring machine having low overall travel height and a low center of gravity shall be required. The drill shall be mounted on a trailer that can be towed by a heavy-duty pickup truck. (Example; CME-45C) INTENT: These specifications describe salient features that shall be required in a combination auger, core, and rotary type drill unit on a trailer. The unit shall be completely assembled and ready for operation when delivered.

PURPOSE: This equipment shall be used for soil sampling, foundation testing, monitoring well installation and subsurface exploration work. The drill machine shall be capable of performing auger borings in unconsolidated formations with continuous flight or hollow-stem augers. The drill shall have the capability of productively using currently popular geo-exploration methods and techniques that include Shelby tube or continuous tube sampling and standard penetration testing. The drill shall be capable of coring or rotary drilling applications.

GENERAL SPECIFICATIONS: The drill shall be a self-contained unit having a single engine power source. The power shall be appropriately directed to the hydraulic system and mechanically-driven drill head. A hydraulically actuated folding upright drill frame with twin hydraulic feed cylinders shall be supplied. The assembled drill with its complement of auxiliary equipment shall be so arranged that work may be carried on with optimum efficiency and a minimum of manual labor. All parts, materials and workmanship shall be of the highest quality recognized by the trade. The drill unit shall be thoroughly field tested and ready for immediate and continuous operation at time of delivery. The equipment proposed must be a current model under standard production, being produced in quantity for national distribution. The manufacturer must have a minimum of three years production experience designing and manufacturing this type of equipment. The drill shall have been in production for at least two years. Dealer or vendor modifications to a non-conforming model for the express purpose of meeting minimum specification requirements will not be acceptable. Parts and accessories shall be stocked and readily available from the successful vendor. The drill unit shall be furnished with all standard equipment advertised whether or not specifically called for here, except where optional or conflicting equipment is specified. The drill shall meet the following specifications.

“The award will be made on a best value basis to the vendor that either meets or most closely meets the specifications, while taking price and delivery into consideration.”

Please complete all checklists. An X will have the same meaning as standard or specified equipment. Make note of all exceptions and identify as not available or dealer installed.

The following abbreviations must be used:

X Standard or as specified

N/A Not Available

DI Dealer Installed

AE Approved equal process 1.0

ROTARY DRIVE:

____ 1.1 The drill transmission shall have at least four (4) speeds forward and one (1) speed reverse.

____ 1.2 The transmission shall be mounted stationary on the drill main base frame with a heavy-duty clutch immediately adjacent to the transmission power input.

____ 1.3 The maximum drill spindle torque shall exceed 3,395 foot-pounds in first gear.

____ 1.4 Rotational speeds of the drill spindle shall range from at least 102 RPM in first gear to more than 643 RPM in fourth gear at 2,300 engine RPM.

____ 1.5 The output of the transmission shall power a single speed right angle drive.

____ 1.6 The right angle drive output shall turn a drive shaft connected to the rotary box.

____ 1.7 The rotary box shall be stationary with respect to the drive head travel.

____ 1.8 The rotary box shall be grease packed.

____ 1.9 The minimum rotary box chain size shall be double 80 series.

____ 1.10 The rotary box shall turn a rotary drive bar that has a square cross section of at least

1.75 inches a side and shall be made of heat-treated alloy steel.

____ 1.11The drill shall be equipped with a heavy-duty auger drive universal joint and 1-5/8 inch hexagon drive socket.

____ 1.12 Provision against shock overload to the rotary drive shall be accomplished through an easily adjustable torque-limiting clutch.

2.0

VERTICAL DRIVE:

____ 2.1 The vertical drive shall consist of two (2) double-acting hydraulic feed cylinders with an overall stroke or travel of at least 68 inches.

____ 2.2 Feed cylinders shall have a point of thrust centered upon the axis of the drill spindle.

____ 2.3 The feed slide bushings shall be split for ease of removal and replacement.

____ 2.4 The vertical drive shall have a maximum downward thrust of not less than 13,650 pounds and an upward or retract force of not less than 19,600 pounds.

____ 2.5 The feed cylinders shall have a minimum piston rod diameter of 1.375 inches to withstand compressive forces when retracting augers from the ground without rotation.

____ 2.6 Hydraulic gauges shall be provided on the control panel at the left rear of the drill to indicate in pounds per square inch the hydraulic feed pressure and system pressure.

____ 2.7 Hydraulic controls shall be furnished for varying the feed rate and down pressure.

____ 2.8 The maximum rate of feed shall not be less than 79 feet per minute down and 55 feet per minute up.

____ 2.9 Two (2) feed levers shall be provided.

____ 2.10 One (1) feed lever shall be of the spring return type permitting standard rates of feed and retract.

____ 2.11 The first feed lever shall not be affected by the dial control settings used with the second feed lever.

____ 2.12 The second feed lever shall have a detent position and be used for drilling when a controlled rate of feed is required.

____ 2.13 Feed rate, once set, shall not be affected by changes in engine RPM nor by changes in formation resistance unless the adjusted down pressure setting is reached.

____ 2.14 A feed rate control shall be furnished for changing the rate of feed.

____ 2.15 A pressure control shall be furnished for changing the maximum bit pressure.

____ 2.16 The feed rate and pressure controls shall be operated by rotary type valves located on the front of the control panel within easy reach of the operator.

3.0

DRILL POWER UNIT:

____ 3.1 The power unit shall be a self-contained electric starting, air-cooled, heavy-duty 3-cylinder industrial type diesel engine, having not less than 197 cubic inch displacement and a minimum 57 gross horsepower.

____ 3.2 The engine shall meet U.S. EPA Tier 4i emission certification.

____ 3.3 The unit shall be equipped with a heavy-duty, dual element air cleaner with visible restriction gauge, a governor and a replaceable full flow oil filter.

3.4 The engine shall have a high heat / low oil alarm system.

____ 3.5 The unit shall have a 12-volt electric starting system consisting of a starter, alternator, heavy duty battery and regulator.

3.6 A manual battery cutoff switch is required, connected to the negative battery cable and easily accessible.

____ 3.7 The unit shall have a keyed ignition switch on the drill control panel.

____ 3.8 The power unit shall be equipped with a dry disc clutch not less than 13 inches in diameter and a transmission having not less than four speeds forward and one reverse.

____ 3.9 When coupled with the drill unit, the engine shall have sufficient power to meet all requirements listed elsewhere in this specification.

____ 3.10 The fuel tank shall have a capacity of not less than 12 gallons and shall have level indicator sights.

4.0

UPRIGHT DRILL FRAME WITH PERMANENTLY COUPLED DRIVELINE:

____ 4.1 The upright drill frame shall be hydraulically actuated permitting 90°degree fold over for traveling.

____ 4.2 The depth of the upright part of the base frame shall be at least 8 inches for rigidity.

____ 4.3 Two (2) 2.5 inch ID double-acting hydraulic cylinders that have a minimum of 1.375-inch diameter rods shall control the drill frame movement.

____ 4.4 The direct-coupled mechanical drive train to the rotary shall not have to be disconnected when folding the upright drill frame over to a horizontal travel position.

5.0 HYDRAULIC SYSTEM:

____ 5.1 This system shall have a heavy-duty engine driven hydraulic pump run independently of the gear train with a capacity of not less than 24.9 GPM at 2,000 PSI.

____ 5.2 The system shall be filled with bio-degradable hydraulic oil (Chevron Clarity #32) and equipped with a full-flow replaceable element hydraulic oil filter in the low pressure return line.

____ 5.3 A hydraulic oil cooler and high pressure hydraulic oil filter shall be furnished.

____ 5.4 The hydraulic oil reservoir shall have a capacity of 25 gallons and shall be equipped with level indicator sight eyes, a vented filler cap and a magnetic drain plug.

____ 5.5 The hydraulic pump shall be driven from a point in the line of power transmission so that hydraulic power will be available whenever the engine is running.

6.0 DRILLER'S CONTROL PANEL:

____ 6.1 All controls and gauges needed for the various drilling operations shall be placed in such a manner as to be easily accessible and convenient for the drill operator while permitting a view of the drilling operation at all times.

____ 6.2 Driller's control panel shall be mounted on the left rear of the drill and shall include the following instrumentation and controls (minimum):

(a) Keyed ignition switch and starter switch.

(b) Push-button emergency engine shut-off switch.

(c) Throttle control.

(d) Transmission gear selector and lock-out clutch handle and auxiliary spindle brake set valve.

(e) Gauges: Hour meter, engine oil pressure, engine oil temperature and volt meter in a locking box.

(f) Hydraulic gauges for systems pressure and pull-down pressure.

(g) Feed rate and feed pull-down pressure controls.

(h) Feed and detent feed levers.

(i) Hydraulic controls for all standard and provided optional components.

____ 6.3 The drill controls shall be arranged in groups and situated for convenience according to frequency of use.

____ 6.4 For safety and convenience, the hydraulic levers shall have directional control that corresponds with cylinder movement. For example, moving the feed lever up shall extend the feed cylinders.

7.0 SAFETY AND EMERGENCY SHUT-DOWN SYSTEM:

____ 7.1 Push-button emergency shut-off switches shall be located on the control panel and on the right side of the main drill frame.

____ 7.2 Two (2) emergency multi-directional wobble shut-off switches with extended levers shall be located near the bottom of and parallel to the feed cylinders.

____ 7.3 One (1) emergency multi-directional wobble shut-off switch shall be located above and parallel to the axis of the cathead.

____ 7.4 When any emergency shut-off switch is activated, a drive line brake is engaged to stop the spindle rotation in less than one revolution, the clutch is released, the cathead rotation instantly stops, and the engine is shut down.

____ 7.5 The system shall also include a lock-out type clutch handle that positively locks the clutch handle in the down or disengaged position and an auxiliary spindle brake set valve.

____ 7.6 A neutral start switch is to be included that only allows the engine to start when the clutch is disengaged.

____ 7.7 A mast-raising alarm shall be included to alert the drill crew to look for overhead obstructions.

7.8 All warning, hazard, informational and instructional decals shall be properly located and installed.

8.0 MAST:

____ 8.1 The mast shall be secured by bolts to the upright drill frame and shall be removable from the drill when not needed.

____ 8.2 With the mast in a vertical position, the sheaves shall be not less than 15 feet from the base of the drill main frame.

____ 8.3 The maximum line pull of the draw works shall be evenly distributed on four cross-braced tubular members with an adequate margin of safety.

____ 8.4 Pairs of 8 inch diameter sheaves shall be aligned with the rope or wire rope they carry.

____ 8.5 Two (2) hydraulic cylinders shall be provided to raise and lower the upright drill frame and mast.

9.0 DRAW WORKS:

____ 9.1 The draw works shall include a cathead and two (2) hydraulic hoists.

____ 9.2 The cathead shall be hydraulically powered and have a pulling capacity of not less than 1,370 pounds.

____ 9.3 The cathead shall be located at the right rear corner of the drill at right angles to the long axis of the drill frame.

____ 9.4 The diameter of the drum shall be 8 inches and the length 7.5 inches.

____ 9.5 Maximum peripheral speed shall not be less than 710 feet per minute.

____ 9.6 The first hydraulic hoist shall have a maximum pulling capacity of not less than 3,200 pounds.

____ 9.7 Maximum line speed shall be not less than 100 feet per minute.

____ 9.8 One (1) hydraulic lever shall be furnished for controlling hoisting or lowering and rotation speed.

____ 9.9 Hoist shall include a 3/8 inch diameter wire rope and a safety Shur-Lok hook.

____ 9.10 The second hydraulic hoist shall have a maximum pulling capacity of not less than 1,800 pounds.

____ 9.11 Maximum line speed shall be not less than 200 feet per minute.

____ 9.12 One (1) hydraulic lever shall be furnished for controlling hoisting or lowering and rotation speed.

____ 9.13 The hoist shall include 3/8 inch diameter wire rope and a safety Shur-Lok hook.

10.0

SLIDING BASE, IN-OUT:

____ 10.1 A sliding base shall be furnished for moving the drill in and out so that the drill spindle can be positioned to facilitate alignment of augers and drill rods and to provide clearance from the hole for handling augers, casing and other down-hole tools.

____ 10.2 When the slide base is extended, the center of the auger drive shall be at least 15 inches from the rear of the trailer to provide ample working room.

____ 10.3 The in-out slide base shall have at least 15 inches of travel and shall be hydraulically operated.

____ 10.4 The in-out slide base shall have a replaceable Nylatron (or approved equal) wear plate between the metal slide surfaces.

11.0

SLIDING BASE, SIDEWAYS:

____ 11.1 A sliding base shall be furnished for moving the drill to either side so that the drill spindle can be positioned to facilitate alignment of augers and drill rods when starting or drilling a hole.

____ 11.2 The sideways slide base shall have at least 8 inches of travel and shall be hydraulically operated.

____ 11.3 The sideways slide base shall have Nylatron (or approved equal) wear plate between the metal slide surface.

12.0

MUD PUMP ASSEMBLY:

____ 12.1 The mud or water pump shall be a progressing cavity type pump (3L6 or equal) and shall have an infinitely adjustable output of 0 to 36 gallons per minute and a maximum pressure of 225 PSI.

____ 12.2 Pump output shall not be affected by changes in engine RPM.

____ 12.3 Power for the mud pump shall be supplied by a hydraulic motor operated from the drill hydraulic system.

____ 12.4 The assembly shall include a pressure gauge, a 1-1/2 inch pressure port with sufficient 1-1/2 inch high pressure hose to connect to the control panel and a 2 inch suction port.

____ 12.5 Provisions shall be made for drainage of the mud pump and lines.

____ 12.6 A stabilized side feed water swivel with an AW box rod connection shall be provided.

13.0

HYDRAULIC HAMMER:

____ 13.1 A hydraulic hammer system shall be furnished that will lift a 140 pound drive weight 30 inches and completely release the weight for a 30 inch free fall.

____ 13.2 No rope or cable shall be attached to the weight that might impede free fall.

____ 13.3 The system shall have a minimum rate of at least 50 blows per minute.

____ 13.4 The hammer shall be preset at the factory for a consistent weight fall height through the use of adjustable priority hydraulic control valves.

____ 13.5 Once the valves are set, the fall height of the hammer weight shall not be affected by engine throttle adjustments.

____ 13.6 The fall height shall have a tolerance of plus or minus ½ inch.

____ 13.7 A method for visual verification of the fall height of the weight while the hammer is in operation shall be provided.

____ 13.8 The hammer shall be mounted on one single-acting hydraulic cylinder which is dedicated to the operation of the hammer device and shall be attached to the upright drill frame opposite of the control panel.

____ 13.9 The hammer device shall be hydraulically raised or lowered by this hydraulic cylinder through 60 inches of vertical travel.

____ 13.10 A 140 pound drive weight shall be furnished.

____ 13.11 A safety feature shall be furnished that will prevent the hammer from operating if the anvil is not in place.

14.0

HYDRAULIC ROD HOLDER AND BREAKOUT DEVICE:

____ 14.1 A hydraulic rod holder having two opposed hydraulic cylinders that clamp up to 4.5 inch OD drill rod or pipe between two replaceable jaws shall be furnished.

____ 14.2 Rod holder jaws shall have a minimum of 3.75 inches of vertical height engagement evenly distributed over a minimum of 45% percent of the drill rod circumference.

____ 14.3 The device shall swing on and off the hole from a pivot point near the right rear leveling jack and shall hydraulically move in and out.

____ 14.4 The hydraulic extension or retraction of the rod holder shall permit centering of the rod holder jaws on tools that are aligned with the vertical axis of the drill spindle.

____ 14.5 A hydraulic breakout wrench shall be mounted on the rod holder.

____ 14.6 One (1) spare set of drill rod jaws shall be furnished.

15.0 HYDRAULIC LEVELING JACKS:

____ 15.1 Heavy-duty hydraulic leveling jacks shall be furnished that are individually operated from the control panel at the left rear of the drill.

____ 15.2 Leveling jacks shall provide adequate leveling capability and shall be strong and rigid enough to easily support the total weight of the machine plus the loads generated when retracting drilling tools.

____ 15.3 Check valves shall be furnished in the hydraulic lines to prevent leakage or slippage of the jacks while the drill is set up on a site.

____ 15.4 All jack piston rods shall be completely enclosed to safeguard them from damage.

____ 15.5 Two (2) jacks shall be mounted at the rear of the trailer, one on each corner.

____ 15.6 Maximum cylinder travel shall not be less than 36 inches.

____ 15.7 Minimum outside diameter of the jack cylinders shall be 4.5 inches with a 4 inch bore and 2.5 inch diameter piston rod.

____ 15.8 Two (2) jacks shall be mounted at the front of the trailer.

____ 15.9 Minimum outside diameter of the jack cylinders shall be 4.5 inches with a 4 inch bore and 2.5 inch diameter piston rod.

16.0 TRAILER ASSEMBLY:

____ 16.1 Trailer shall be constructed of steel box tubing and 12 gauge safety tread plate.

____ 16.2 Four (4) watertight tool boxes having a total capacity of not less than 21.6 cubic feet shall be furnished.

____ 16.3 A license plate bracket, driller’s step, plus auger and drill rod racks shall be supplied.

16.4 The trailer shall have two axles rated at 8,000 pounds each with four 245/70R17.5 (H) tires and a 16,000 pound capacity.

____ 16.5 Brakes shall be electric type and installed on each axle.

16.6 Stop, turn signals, running, and license plate lights meeting DOT requirements shall be provided.

16.7 All lights shall be truck type LED and rubber mounted.

16.8 Stop and turn signal lights shall be separated as required by ICC / DOT code.

16.9 All exterior trailer wiring to be run in suitable weather resistant loom or conduit and securely attached, terminating in a weatherproof junction box on the tongue of the trailer. The trailer umbilical which leads to the truck light socket should terminate with a seven (7) pin female plug and begin at the weather tight junction box.

_ 16.8 Trailer shall be undercoated with a self healing undercoating.

16.10 Trailer shall have a 3” heavy duty replaceable pintle hitch that is adjustable from 18” to 25”.

16.11 Trailer shall have an access ladder mounted to the rear with safety steps and hand rails.

16.12 A spare tire and wheel assembly of the same as size, style and design shall be supplied

(Chinese manufactured tires are not acceptable in any application on this unit).

17.0 IDENTIFICATION:

____ 17.1 CME-45C or approved equal.

18.0 PAINT and FINISH:

18.1 All metal shall be free of rust and mill scale and prepared (sandblasted) for primer and finish paint coat.

18.2A two (2) part epoxy primer shall be applied to prepared metal surfaces to the minimum thickness of 3-5 mils dry.

18.3 Paint shall be applied to a thickness of 5-7 mils dry. Use only Imron 3.5 HG Cat Highway Yellow (paint code # 42-3133) to include drill rig and trailer.

18.4 All paint and primer shall be lead free.

____ 18.5 The drill unit, drill platform and all parts normally painted shall be primed and painted a color complying with specifications.

____ 18.6 A color sample shall be furnished to the successful bidder if required.

____ 18.7 All exposed hydraulic cylinder piston rods shall be covered to prevent over spray during painting.

19.0 MISCELLANEOUS:

____ 19.1 All equipment cataloged as standard shall be furnished and shall be included in the purchase price of the unit.

____ 19.2 The component parts of the unit shall be of proper size and design to safely withstand maximum stresses imposed by a capacity load, and the manufacturer's rated loads for chains, bearings and universal joints shall not be exceeded when the unit is loaded with such loads.

____ 19.3 The torque capacity of each driven part shall be equal to or exceed the torque capacity of its driving member.

____ 19.4 This machine is to be delivered in first-class operating condition with acceptance subject to inspection and approval.

____ 19.5 The successful bidder, at a time designated, shall provide two days of training to familiarize personnel with the correct operation and servicing procedures for the equipment delivered.

____ 19.6 No deviations from the specifications will be accepted.

____ 19.7 All items which require periodic lubrication shall be provided with a suitable lubrication fitting.

____ 19.8 Two (2) copies of the manufacturer's service manual containing operating instructions, maintenance instructions and parts list shall be furnished by the manufacturer (one copy may be a CD).

____ 19.9 All pressure systems shall be provided with suitable pressure relief valves.

19.10 With the exception of the drill rotary box, cathead, spindle and drilling tools, all moving parts which are so located as to be a hazard to operating or maintenance personnel shall be fully enclosed or properly guarded.

____ 19.11 Protective devices shall not impair the operating functions.

____ 19.12 Any and all specialized tools required for service or repair shall be included.

20. Warranty:

One year parts and labor, or standard manufactures warranty shall apply whichever is greater. Warranty shall begin on the date unit is actually put into service by MDOT Fleet Services.

General:

1. Bidders shall supply a detailed specification sheet with their bid proposals listing exactly what is being offered (not a reference to a web site).

2. These specifications are a minimum and bids will be evaluated based on price, warranty, manufacturers performance data, delivery schedule (delivery schedule may effect the award), parts availability and other items deemed appropriate.

3. Vendor to provide training at a later date, but within eight (8) weeks of delivery unless other arrangements are necessary.

4. Maine DOT reserves the right to pre-inspect the equipment before delivery.

5. All bid pricing will include shipping and delivery to:

Maine DOT Fleet Service, 105 Capitol St. Augusta, Maine, 04330.

7. Upon delivery of unit or units all necessary paper work such as Certificate of Origin (title), dealer’s certificate, and billing invoices shall accompany unit(s).

Exceptions and Questions: All exceptions must be asked during the bid period by submitting your requests and / or questions through the Question and Answer link on the Solicitation Details View page. Your answer will appear there as well. It is the vendor’s responsibility to log in to view all questions and answers posted there. Questions and answers obtained any other way will not be valid for this RFQ.

ESB 7/23/12