CAT Rotary Track Drills MD6750 39HR Rotary Screw Compressor Maintenance & Operation Manual – PDF Download

Description

CAT Rotary Track Drills MD6750 39HR Rotary Screw Compressor Maintenance & Operation Manual – PDF Download

DESCRIPTION:

CAT Rotary Track Drills MD6750 39HR Rotary Screw Compressor Maintenance & Operation Manual – PDF Download

GENERAL INFORMATION

The A-C Compressor rotary screw compressor has been specifically designed for blast hole drill service. The design of this assembly allows the installation in the most convenient area on the drill deck thus providing maximum walking space around the equipment for maintenance.

A-C Compressor’s engineers have worked closely with the blast hole drill engineers to ensure that the subassemblies have been installed and piped properly on the drill. Therefore, as the end user of the A-C Compressor screw compressor, you only need to follow the simple installation, operation and maintenance procedures recommended in this manual to ensure long and trouble-free service from your compressor.

Warranty

• The air end of your compressor package, when properly applied on blast hole drill service, will be protected with a two year warranty against defects in workmanship and materials from date of shipment
• . All other equipment in the package shall be covered by the manufacturers’ standard warranties. A-C Compressor has the option to adjust, repair or replace as conditions warrant. The purchaser shall assume responsibility for removal, reinstallation and freight.

Description

• The air end of your screw compressor package is an oil flooded, single-stage, twin screw, rotary type, with the latest asymmetrical profile design for optimum efficiency.
• (See Figures 1A, 1 B, 1 C; Page 2.) The suction (inlet) port is located on the top, drive shaft (inboard) end of the compressor. The discharge port is located on the side, outboard end.
• The air end is directly driven using a flexible coupling between the electric motor and the air end. The male rotor is driven by a gear mounted on an independent input shaft and a mating gear on the male rotor.
• The female rotor is driven by the male rotor because the rotors are meshed. (See Figure 1 A; Page 2). Each rotor is mounted with angular contact ball bearings at the rear or discharge end.
• This provides positive rotor location. The front or inlet end of each rotor is supported by single row roller bearing. This allows the rotor and cylinder to freely expand or contract during normal operation due to changes in temperature. The independent input drive shaft is supported by roller bearings.

TABLE OF CONTENTS:

CAT Rotary Track Drills MD6750 39HR Rotary Screw Compressor Maintenance & Operation Manual – PDF Download

CONTENTS
General Information 1
Warranty 1
Description 1
Alignment 3
Flow Diagram & Parts Description 4
Coupling Alignment 7
Parallel Misalignment 7
Angular Misalignment 7
Starting & Operating Procedures 9
Controls & Instruments 11
Air Pressure Control System 11
Inlet Regulating Valve 11
Air Pressure Control Valve 12
Vacuum Breaker Valve 13
Maintenance Indicators 13
Pressure & Temperature Gauges 14
Air Temperature Limit Switch/RTD 14
Hour Meter 14
Safety Relief & Solenoid Slowdown Valves 14
Minimum Pressure Orifice 15
Oil System Relief Valve 15
Variable Volume Feature (Optional) 15
Lubrication System 17
Oil Specifications 17
Filling Oil Initially & Adding Oil 18
Draining & Refilling Oil 18
Oil Strainer & Filters 19
Oil Cooler 21
Temperature Control Valve 21
Oil Separator 22
Section 7 Air Filters 24
Section 8 Maintenance Schedule 27
Section 9 Trouble-Shooting 33
Section 10 – Parts Illustration and Parts Lists 37
Section 11 Storage Procedure 41

CAT ROTARY TRACK DRILLS MD6750 39HR ROTARY SCREW COMPRESSOR MAINTENANCE & OPERATION MANUAL – PDF DOWNLOAD:

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PLEASE NOTE:

• This is the same manual used by the dealers to diagnose and troubleshoot your vehicle
• You will be directed to the download page as soon as the purchase is completed. The whole payment and downloading process will take anywhere between 2-5 minutes
• Need any other service / repair / parts manual, please feel free to contact [email protected] . We still have 50,000 manuals unlisted

S.M