CONDUCT SURFACE BLAST HOLE DRILLING OPERATIONS

THEORY ASSESSMENT AND
TRAINEE'S ACTIVITIES

The Assessment Process can be illustrated as follows:

How a candidate becomes competent does not matter.

What matters is that they are able to demonstrate competence according to the performance criteria specified in the unit and the assessment materials.

Trainees Name:                                      Trainers Name: 
  
Date:                                                       Assessors Name:        

 
 

1. List six (6) important details contained on the Drill Operational Plan?
1.     
2.     
3.     
4.     
5.     
6.  

   
2.   List three (3) examples of why it may be necessary to deviate from the Drill Operational Plan;


3.    There are two Procedures that must be followed whenever access is required to an operating drill, what are they?

4.   Which side do you board the drill from?


5.  The operator must give correct horn signals before starting and moving in either direction, complete the table below?

1 Blast	START
2 Blasts
3 Blasts

6.   Who has responsibility for marking out the drill pattern?
   


7.  What information is recorded by the operators on the 'Production Shift Report', complete the list below?

    Shift Details.




    Metres drilled per hole.
   


8.  What information is communicated to the oncoming shift when there is a shift handover?

• Contents of the OCE's report
• Defects Log book entries
• Tags
• Maintenance
•         
•         
•         
•         
•             
  
   

9.   List 6 different types of PPE (personal protective equipment) you may be required to wear whilst working on site and or with drill machinery.

2.     
3.     
4.     
6.     

Trainees Name:                                              Trainers Name:  
    
Date:                                                               Assessors Name:      
  

1. Identify the various components numbered 1-6 on the illustration below and write the relevant number alongside the component in the table provided.

      6

.........Levelling Jack 

.........Operator's Cab  

........ Mast Assembly 

.........Drill RodRotary Head  

.........Rotation Motor

2.  Drill operators are required to conduct a comprehensive walk-around inspection of their drill rig and the operating area at beginning of each day shift?

1. True.
2. False.

3.  Identify the various components numbered 1-7 on the illustration below and write the relevant number alongside the component in the table provided?

	Hydraulic Oil Tank		Pump Drive Group
	Radiator/Oil Coolers		Driveshaft
	Drill Loader/Carousel		Air Receiver / T Tank
	Water Injection Tank / Dust collector

4.  List four (4) functions where fluid power is provided by the hydraulic pump.

1.   
  
2.  
   
3. 
    
4.     

5.  Explain the function of the two main air pressure gauges on the operator's control panel?

        


6.  Why is it important to have the carousel locking pin locked when coupling and un-coupling rods?



Trainees Name:                                                  Trainers Name:
   
Date:                                                                   Assessors Name:        


1.  What position should the Engine Throttle Lever be in during engine start up?
    

2.  What is the normal operating pressure of the engine oil?

• 380-415 KPa
• 415-450 KPa
• 550-585 KPa

3.  Name one circumstance where you would activate the emergency stop switch to shut down the drill?
    

4.  After starting, the engine why should it be run at low idle for 2-5 minutes?
 

5.  What is the maximum period the engine should be run at idle?

• 10 minutes
• 15 minutes
• 20 minutes
• 30 minutes

6.  List six (6) things that should be checked after starting the engine?
1.   
  
2. 
    
3.  
   
4. 
    
5.
     
6.     

7.  Shutting the engine down before it has cooled down will result in shortening of engine life?

True. 

           

False.

8. When shutting the machine down, why is it necessary to remove the drill string from the hole?

    

9.  Before shutting the machine down, why is it necessary to complete drilling the current hole?

    

10.  Just prior to shutdown, explain what the procedure is for the oncoming shift?
   

11.  Complete the sentence:

Always check for ________________________ and ________________________ before moving the drill in any direction.




Trainees Name:                                             Trainers Name:  

Date:                                                             Assessors Name:        


1. The drill must only be propelled when the mast is?

• Fully lowered
• Fully raised
• Either of the above positions

2.  What operator action initiates the release of the propel brakes?



   
3.  To make a gradual right turn, the operator should push the right joystick slightly away and push the left joystick away to a position for desired speed of turning?

• True.
• False.

4.  What is the maximum allowable transient stability limit for tramming up a gradient Radiator front first?

• 9%
• 21%

5.  The levelling jack controls consist of three or four (drill specific) levers located on the control console?

• True.
• False.

6.  What conditions must exist for the mast to be raised or lowered on the drill?

• The head at or above the deck bush or locked in the C spanner, with drill pipe in the mast
• The head at the bottom of tower with the pipe removed and placed in carousel
• Either of the above

7.  What are two (2) important visual checks, included in the procedure, that need to be made before raising the mast


1.      
  
2.        

8.  To raise the mast which way should the operator pull the joystick toward ?

   
9.  What precaution must be taken if the mast is to be lowered with the head up and the drill string in the mast?


10.  During normal operation, the hoist brake is SET only after the anti feed switch operating the pull down is at an off position?

• True.
• False.

11.  What could result if the operator fails to SET the hoist brake after the pull down/hoist speed potentiometer is set to the OFF position?


12.  Is it acceptable to use the auxiliary winch when the machine is resting on the tracks? Explain Why
   


13.  When loading and unloading pipe, the right hand joystick can be used to rotate the carousel?

• True.
• False.

14.  The carousel is rotationally operated by a hydraulic cylinder or gear box assembly?

• True.
• False.

15.  The Auto Pipe Carousel Switch is a three position switch, with the spring centred position being neutral?

• True.
• False.

16.  Identify the various drill tool components numbered 1-5 on the illustration below and write the relevant number alongside the component?

...........Guide Bushing (Deck Bush)


...........Stabiliser


...........Automatic Casing Tong/ Hobo


...........Tool Wrench / Deck Spanner


...........Lifting Bell

This picture is drill specific, any unsure questions can be directed to your trainer!

17.  The Tool Wrench is used to grip and support the drill pipe or stabiliser while drill rods are being added or removed?

• True.
• False.

1. What precaution needs to be taken to prevent drill rod threads from seizing or galling?
   
   
       

18.  If the operator needs to leave the cab to work around the drill string, what controls need to be set before leaving the cab?




19.  What item of dust suppression equipment must be adjusted when changing from vertical to angle drilling?




Trainees Name:                                                Trainers Name: 

Date:                                                                 Assessors Name:        

1. Where are the fire suppression system manual actuators located?
       
       

1. The Fire Suppression System on the Drill has a foam suppressant agent?

• True.
• False.

1. When actuated, what acts to release the fire suppression agent?
     
       

Trainees Name:                                                       Trainers Name:
  
Date:                                                                        Assessors Name:        

1. Explain what is meant by the term 'collaring'?
   
   
       

1. If air pressure is below normal working range, what action should the operator take?
   
   
       

1. How does the operator reduce vibration of the tool string?
   
   
       

1. Why is it necessary to 'ream' the hole to complete the drilling process?
   
   
       

1. List three (3) adverse conditions that can result from drilling in wet formations?

1. 
    
2.  
   
3.     

1. What problems can be encountered when drilling in different ground conditions?

• Vibration encountered if penetration rate is too fast
• Plugging of the bit orifices
• Decreased bailing air pressure
• Increased bailing air pressure

1. What simple precaution can the operator take when drilling in wet or sticky formations?
   
   
       

1. List three (3) system indicators that need to be closely monitored while drilling angle holes?

1. 
    
2. 
  
3.     

1. Explain what causes additional vibration of the tool string during angle drilling?
   
   
       

1. When performing drilling operations above or below the highwall the operator shall, tick appropriate:

• Check the ground conditions
• Visually check that the bench is not undercut and no backpressure cracking from the previous blast is present
• Inspect the condition of the ground where the tracks and jack pads are going to be located    
• Drill highwall holes in daylight hours where possible
• Ensure pre-operational checks and inspections are completed
• Avoid working directly under the wall
• Avoid drilling entirely during periods of rain, high wind or shot initiation
• All of the above
   

Trainees Name:                                         Trainers Name: 

Date:                                                          Assessors Name:        

1. Who will normally notify drill operators of planned drill relocation?
   
   
       

1. When travelling from pit to pit, the drill may be transported by low loader or may be propelled to the new location?

• True.
• False.

1. When transporting a Drill and using a ramp to load drill, what are the two main transient operational levels acceptable?
   
   
       
2. What is the maximum amount of time the drill should tram for and break for when relocating?
   
   
   
   
   
   
      
3. The supervisor or OCE should be alerted of the movements of the drill when relocating from pit to pit? Why??

1. List six (6) hazards that may be encountered during drill relocation?
   1.     
   2.     
   3.     
   4.     
   5.     
   6.     

Trainees Name:                                                    Trainers Name: 
   
Date:                                                                     Assessors Name:        

1. List four (3) emergency or warning devices that you would check during your walk around inspection?  
3. 
    

1. List four (4) hazards that you may encounter while performing a walk around inspection?

1. 
    
2. 
    
3.   
  
4.     

1. List four (4) defects or abnormal conditions that you would look for when inspecting crawler frame assemblies?

1. 
    
2.  
   
3.   
  
4.     

1. What is the frequency of the Lubrication Service?
     
2. Who conducts the Lubrication Service?
      
3. Explain what feedback the operator is required to provide on the lubrication service?
   
   
     
4. List two (2) tasks the Drill Operator is required to undertake to prepare the drill for a major maintenance task by maintenance personnel.

1.
 
2.     

This Activity will form part of the competency assessment for this training sequence. The document must therefore be presented to the trainer or assessor when completed.

Trainees Name:                                            Trainers Name: 

Date:                                                             Assessors Name:        

Accompany your trainer to the drill operations area. Observe and discuss the processes and activities being carried out in the area, pay particular attention to the support activities that may be taking place. Discuss with your trainer the various conditions that cause interruption to planned drill movements or drilling sequences, including: environmental conditions, incorrect co-ordination of support activities, etc. Make note of your observations and any important comments made by your trainer or others in the area. Record your notes below:

Drill Operational Plans: Accompany your trainer to the Technical Services Department and discuss with the mining engineers, geologists and/or surveyors how the Drill Operational Plans are developed and who has input into the plans. Discuss how the plans are communicated to the drill crews. Make note of your observations and any important comments made by your trainer or personnel from the Technical Services Department. Record your notes below:

Shift Handover: Accompany your trainer and assist with Shift Handover. Observe and discuss what information is important to be communicated between off-going and on-coming crews. Make note of your observations and any important comments made by your trainer or personnel from the other crew. Record your notes below:

Change of Shift Inspection: Accompany your trainer and assist with a Change of Shift Inspection. Make note of important items that need to be checked at the change of shift. Record your notes below:

Maintain Records: Go to the Drill Operator's Cab and locate the various report books mentioned in this training unit. Discuss the correct procedure for completing and processing each of the reports with your trainer or other members of the dragline work crew. Record your notes below:

This Activity will form part of the competency assessment for this training sequence. The document must therefore be presented to the trainer or assessor when completed.

Trainees Name:                                                Trainers Name: 
        Date:                                                                 Assessors Name:        

Accompany your trainer on a walk over the drill; discuss the various systems that make up the drill and each of the main components that make up these systems. Write down a list of each of the main components that make up the systems listed below. Discuss the function or mode of operation of these components with your trainer and consult the manufacturer's manual (if necessary) to determine how the function(s) of each component contribute to the operation of the system. Make notes of your findings.

Engine or Power Unit / Supply:

Pump Drive Unit:

Air Compressor:

Hoist/Pulldown System:

Rotary Drive Unit:

Propel System:

Drill Carousel:

Fire Suppression System:

Additional notes:

This Activity will form part of the competency assessment for this training sequence. The document must therefore be presented to the trainer or assessor when completed.

Trainees Name:            Trainers Name:        
    Date:            Assessors Name:        

Start-Up: Accompany your trainer or other drill operator and assist in conducting the pre-start checks and the drill start-up routine. Observe and discuss the important checks and precautions that need to be made before starting the drill and during the start-up process. Make note of your observations. Record your notes below:

Shutdown: Accompany your trainer or other drill operator in conducting the drill park up and drill shutdown routine. Observe and discuss the important checks and precautions that need to be before, during and after the shutdown process. Make note of your observations. Record your notes below:

This Activity will form part of the competency assessment for this training sequence. The document must therefore be presented to the trainer or assessor when completed.

Trainees Name:                                                     Trainers Name:   
      Date:                                                                     Assessors Name:        

Instruments and Controls: Accompany your trainer or other drill operator on a familiarisation tour of the primary and secondary controls. Observe and discuss the location of the controls required for basic operation of the drill. Identify the important issues or precautions that you need to observe while operating the controls. Make note of your observations. Record your notes below:

Control Motions: Accompany your trainer or drill operator through the operation of the drill control motions and the basic drilling sequences. Observe and discuss the hazards the may be caused by incorrect operation, and the precautions required to ensure you don't contribute to equipment damage. Make note of your observations. Record your notes below:

This Activity will form part of the competency assessment for this training sequence. The document must therefore be presented to the trainer or assessor when completed.

Trainees Name:                                                                  Trainers Name:         Date:            Assessors Name:        

Modular Mining Monitor: Discuss the various displays and functions of the Modular Mining Monitor with your trainer or other drill operator. Note the various displays, function keys and codes that you would use on a regular basis. Make note of your observations. Record your notes below:

Fire Suppression System: Identify the location of each of the main components that make up the fire suppression system. Note the various warning signals and alarms that you may encounter. Make particular note of the location of manual actuators around the machine. Make note of your observations. Record your notes below:

This Activity will form part of the competency assessment for this training sequence. The document must therefore be presented to the trainer or assessor when completed.

Trainees Name:                                      Trainers Name:  
      
Date:                                                       Assessors Name:        

Pattern Design and Drill Methods: Discuss the requirements for drilling the current pattern with your trainer, or other operators. Provide details of the spacings and burden, the depth and angle of holes being drilled in this pattern. Note any special requirements, difficult or unusual drilling conditions for this pattern. Make note of your observations. Record your notes below:

This Activity will form part of the competency assessment for this training sequence. The document must therefore be presented to the trainer or assessor when completed.

Trainees Name:                                                 Trainers Name:        

Date:                                                                  Assessors Name:        

Relocation Plan: Discuss with your trainer the various aspects that need to be considered before relocating the drill – by either walking the machine or transporting by low loader. Provide details of the different support activities and personnel required to ensure a safe and efficient relocation takes place. Note the particular hazards that are likely to be encountered when walking or transporting the drill and how these hazards can be effectively controlled. Make note of your observations. Record your notes below:

Relocation – Ground Preparation: Discuss with your trainer the requirements for confirming and preparing relocation route. Note requirements for support equipment and personnel to prepare for and assist with ground preparation. Note the particular hazards that are likely to be encountered when preparing walk route and how these hazards can be effectively controlled. Make note of your observations. Record your notes below:

This Activity will form part of the competency assessment for this training sequence. The document must therefore be presented to the trainer or assessor when completed.

Trainees Name:                                                 Trainers Name:        

Date:                                                                  Assessors Name:        

Preventive Maintenance (Lubrication / Servicing): Accompany your trainer on lubrication servicing duties. Make note of the equipment that is checked and serviced, include a list of the items checked or serviced on each piece of equipment. Record your notes below:

Pre-Start / Walk-Around Inspection: Accompany your trainer during pre-start and walk-around inspections. Observe and discuss the items that require checking and what to look for. Pay particular attention to what items need to be checked while machine is NOT RUNNING OR OPERATING (static checks). Make note of your observations. Record your notes below:

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