Cat BUCYRUS 59R ELECTRIC BLAST HOLE DRILL MECHANICAL MAINTENANCE MANUAL BI616757 – PDF DOWNLOAD

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CHAPTER 1 MECHANICAL MAINTENANCE SECTION

1 - MAINTENANCE PROCEDURE GENERAL

This section of the manual describes those aspects of preventive maintenance such as scheduled reports and safety precautions as they pertain to the 59-R drill.

MAINTENANCESCHEDULESAND REPORTS

Ideally, all maintenance should be approached from the preventive standpoint and on a regularly scheduled basis. Obviously, this approach keeps downtime to a minimum and results in reduced maintenance costs. To establish a preventive upkeep program, scheduled inspections and an operator's daily report are the most useful tools available. Scheduled inspections should be conducted by the Mine Mechanical and Electrical Maintenance Departments since they are the most qualified. Either department should generate a certain amount of paperwork such as inspection records that become a part of the mine's permanent file on the machine. The inspection records should be explicit, complete, and cover every part of the machine. Each machine operator should complete a daily record of the machine's performance. This record should include time worked, time down, reasons for all delays, and observations on any unusual conditions encountered during operation. From these records, items that can potentially cause machine downtime can be corrected or prevented immediately, or scheduled for a future date when the machine availability can be coordinated with the other mine activities.

Each problem should be thoroughly reviewed and evaluated before scheduling any maintenance or repair. The following points should be considered during the evaluation.

1. Is the problem one of normal wear?

2. Is the problem caused by machine application?

3. Is the problem a result of operator error?

4. Is the problem a result of unavoidable circumstances?

5. Is the problem of a repetitive nature?

6. By leaving the repairs to a later date, will any other component be affected?

7. Can repairs be accomplished immediately?

8. Will the cost of repairs immediately rather than later be worthwhile?

9. How long will the machine be down?

Once maintenance or repair has been scheduled, take the following points into consideration to minimize downtime and expense.

1. Are all tools and equipment needed to accomplish maintenance or repair available on the job, and are they in good repair?

2. Are all replacement parts on hand and readily available?

3. Is replacement of auxiliary parts, such as seals and bearings, necessary to accomplish repair, and have they been ordered?

4. Is all disassembly and reassembly data available?

5. Have repair crews been scheduled?

6. Will there be adequate supervision on band for the repair crews?

7. Has the manufacturer been consulted for Service or Engineering assistance?

8. How long will the machine be down?

Once repair has been accomplished, the problem should again be reviewed with the following things in mind.

1. Was the cause of the problem permanently corrected or just patched?

2. What guarantee is there the same problem will not occur again?

3. Is consultation with the manufacturer for design improvement necessary?

4. What costs were incurred in downtime, parts, tools and labor?

5. Could the problem have been prevented by prior action?

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