CUBEX QXR 920 10243 Operator Manual BI620143 - PDF DOWNLOAD

Operators Manual

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Cubex

1218 Redonda St., Box 13, Grp 524, RR5

Winnipeg, Manitoba Canada, R2C 2Z2

Phone: (204) 694-5505

Main Fax: (204) 633-0665

www.cubex.net

Copyright

Section 1 Introduction

1.1 Drill Description

The Cubex Megamatic QXR series of drills are designed to deliver maximum drilling efficiency and flexibility using a Down-the-hole Hammer. The standard QXR is a QXR 920 with a 900 cfm/500 psi (25.7m3/min 34.5 bar) compressor, a mast with carousel capable of handling 20 ft. (6 m) drill pipe and a Caterpillar engine. The QXR series of drills also offers up to 1350 cfm/500 psi (38.6 m3/34.5 bar) air capacity.

The QXR is designed to drill up to 8” (203 mm) diameter holes to a depth of 140 feet (42.7 m) without adding drill pipe to the carousel.

1.2 Manual Objectives

This manual covers a description and the operation of the Cubex QXR drill and can be used as a training aid for Cubex’s Operator Training Course.

The Objective of this manual is to familiarize operators with the following:

• Major components and sub-assemblies of drill

• Layout of controls and what they operate

• Drilling

• Maintenance

• Operator Safety

• Troubleshooting

1.3 Drill Orientation

The operator's right hand side is the drill's right hand side with the operator standing at the tram step facing forward (Fig 1.1).

Fig 1.1 Orientation

Section 2 Description of Equipment

2.1 Major Components and Sub-assemblies

2.1.1 Mast and Undercarriage

Refer to Fig 2.1.1, Fig 2.1.2, Fig 2.1.3, and Fig 2.1.4

1. Undercarriage and Chassis

The tracks use Caterpillar components with 19-5/8” (500mm) wide, triple grouser shoes.

Brakes are spring applied/hydraulic released. Gradability is 36° and ground clearance 16” (406mm).

2. Boom

The 9ft. Boom allows great flexibility in mast positioning.

3. Boom Lift

This cylinder raises and lowers the Boom from 10° below horizontal to 45° above.

4. Boom Swing Cylinder

The swing cylinder moves the boom from 30° to the left and 35° to the right.

5. Mast Assembly

The mast overall length is 32’7” (9931mm) with 24’ (7315mm) of head travel. An option of 19’ (5791mm) of head travel is available.

A chain feed system that uses a powerful hydraulic cylinder provides hoisting and pull down power. Hoisting force is 10,600lbs (47kN) and pull down force is 10,600lbs (47kN).

A hydraulic centralizer with a maximum size of 8 3/8” (219mm) along with a hydraulically actuated slip plate (size varies on drill pipe used).

6. Mast Dump Cylinder

This cylinder moves the mast from a horizontal position to 45° past the vertical axis (135° total from horizontal).

7. Mast Swing Cylinder

The mast swing cylinder has two positions. One allows the mast to be moved ± 30° from vertical in the perpendicular axis from the drill.

The cylinder can be repositioned to allow the mast to be moved 15° above horizontal.

Fig 2.1.1 Right Side

Fig 2.1.2 Boom Cylinders

8. Feed Extension Cylinder

Extends the mast into contact with the rock. It has 60” (1500mm) of travel.

9. Manual Controls (Mast)

See section 2.3.2 for layout.

10. Top Drive

Hydraulically driven by two high torque motors, the Top Drive has a torque capacity of 4225 ft-lbs (5730 Nm) @3000psi (207bar) standard or an option of 6280 ft-lbs (8517Nm).

The speed is infinitely variable between 0 to 80 rpm.

Incorporated into the Top Drive is the splined piston breakout system, which eliminates the need for wrenches to breakout drill pipe.

11. Divertor Assembly

Debris and water from hole are diverted from passing to the centralize assembly along the drill pipe.

12. Cable Chain

Air and hydraulic hoses are protected on the mast by the cable chain.

13. Triple Jaw Breakout System

A combination of three jaws used to breakout drill tool joints.

Fig 2.1.3

Fig 2.1.4

Fig 2.1.5 Engine Filter Mounting Plate

2.1.2 Right Side

Refer to Fig 2.1.5, Fig 2.1.6 (next page)

1. Engine Filter Mounting Plate

All of the engine filters have been located on the fuel tank in one spot for ease of maintenance.

2. Engine Oil Filter

3. Fuel Filters

4. Water Separators

5. Carousel Assembly

The carousel holds up to six rods. These rods can be up to 20’ (6 m) long and 3 1/2” (89 mm) to 5” (127 mm) diameter.

6. Diesel Engine

Cummins water-cooled diesel engine. Refer to your Parts Manual for engine model.

7. Primary Batteries

Four Caterpillar heavy-duty batteries supplying 24 volts.

8. Oil Injection

The oil injection reservoir has a 22 gal (83 L) capacity.

9. Grease Injection (Standard)

Grease injection for DTH hammers. The reservoir has an 8.4 gal (32L) capacity.

10. Winch (Optional)

Winch for handling the drill pipe. The winch has a single line pull capacity of 1500 lbs (682 kg) and uses 3/8” (10 mm) cable.

11. Fuel Tank

370 gal (1400 L) (standard); 280 gal (1059 L) capacity (optional).

12. Fill Cap Fuel tank fill cap.

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