STANDARD OPERATING PROCEDURE

ACTIVITY Drilling Operation SITE DEPARTMENT

SOP NO. SOP/EG/MINING/01 REVISION 00 EFF DATE: 3/3/24 NO. OF PAGES Page 1

Step Activity (WHAT) Associated Requirements/ Process / tools / PPEs (HOW Responsibility Remarks /
No. Hazards/ Impact (WHO)) Refere
OH&S –
1 Prestart checking i)Fall i) Keep the ladders and handrails Drill Operator DOCNO.
free from oil, grease and HIRA/MINING/01
dirt(slippery condition ) .

Environment –
i) Air pollution(smoke) i-a) Remove cotton waste and Drill Operator Aspect
due to fire extraneous material from the cabin.
No.31
b) Check that Battery box / Fire
prone area is free from Inflammable
material.
Drill Operator
ii) Dust ii)Check the drill bit whether
sharpening required or not.
Quality –
i) Check the machine i) Check the following before starting Drill Operator DOC.NO.
WI/OPRN/01
before starting. the machine:
a) Water level in the radiator
b) Hydraulic oil level ( > low level )
c) Engine oil level ( > low level )
d) Rock drill oil level ( > low
level)
e) Compressor oil ( > low level )
f) Safety devices
g) All lights in working condition
or not
h) Water level at water tank
i) General visual inspection
j) Clearance around the drill Drill

ii) Check the drill bit ii) Sharp edge drill bit gives more
penetration rate so check bit Operator
condition,

iii) Check for any broken parts in Drill

the
drilling rig, if found report
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ACTIVITY Drilling Operation SITE DEPARTMENT

SOP NO. SOP/EG/MINING/01 REVISION 00 EFF DATE: 3/3/24 NO. OF PAGES Page 2

immediately. Operator

iii)Visually check for

any machine
damage
.
OH&S –
2 Use PPEs. i)Use the helmet, safety shoe,safety Drill Operator/ DOCNO.
i)Injury to body parts/ HIRA/MINING/01
inhalation of goggle,hand gloves,nose mask, Helper/Supervisor
dust/hearing loss earmuff and fluorescent jacket in
right way.
Environment-Nil

Quality – DOC.NO.
Use of PPEs. i)Ensure that drilling crew are using Mines Foreman WI/OPRN/01
PPEs.
OH&S –Nil
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ACTIVITY Drilling Operation SITE DEPARTMENT

SOP NO. SOP/EG/MINING/01 REVISION 00 EFF DATE: 3/3/24 NO. OF PAGES Page 3

Environment - Nil
3. Check after start
Quality – DOC.NO.
i) Check after starting i) Check the following after starting Drill Operator WI/OPRN/01
the machine. the machine:
a) Engine oil pressure shall not be
less than 2 Kg/Sq. cm
b) Operation pressure shall not be
less than 8 Kg/Sq.cm
c) During flushing, air pressure shall
not be less than 6 Kg./Sq. cm.
d)Compressor oil pressure shall
not be less than 2.5 Kg/Sq.cm
e) Water temp. (in case of diesel
drill)
f) Air intake temperature meter.
g) All monitors in panel board are
in working condition. In the event
of any
 STANDARD OPERATING PROCEDURE

ACTIVITY Drilling Operation SITE DEPARTMENT

SOP NO. SOP/EG/MINING/01 REVISION 00 EFF DATE: 3/3/24 NO. OF PAGES Page 4

defect found report to the Shift-

in- charge.

ii)Ensure the working order of

water flushing arrangement.

OH&S -
4. Marching & Placement on drill DOCNO.
i) Injury due to fall i) Do not allow any one to ride on the Drill HIRA/MINING/01
marking drill rig when tramming or towing it.

ii) Tipping ii-a)Be sure that the foot piece is Operator

raised clear of the ground or any
obstructions before moving the beam
or drill guide. Drill
Take care for uneven or sloping
ground.
Operator
b)Place the drill guide in the horizontal
position before tramming or towing
the drilling rig.

iii) Look out the area clearly and adjust

iii) Toppling down the edge the travel of drill rig as per site specific
needs.
Be careful during movement near
bench edge.
Drill Operator
iv) Identify any slippery condition in
the work area, if found then make
iv) Slip and fall
necessary precaution.

Drill Operator
Environment - Nil
Quality – DOC.NO.
i)Marching and placement of i)Move the drill to the marking Drill Operator WI/OPRN/01

drilling machine given by the blasting incharge.

 STANDARD OPERATING PROCEDURE

ACTIVITY Drilling Operation SITE DEPARTMENT

SOP NO. SOP/EG/MINING/01 REVISION 00 EFF DATE: 3/3/24 NO. OF PAGES Page 5

By seeing the level indicator, level

the

. drill machine using the jacks

provided
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ACTIVITY Drilling Operation SITE DEPARTMENT

SOP NO. SOP/EG/MINING/01 REVISION 00 EFF DATE: 3/3/24 NO. OF PAGES Page 6

OH&S-
5 Start the drilling i) Caught between i) Keep yourself away from the Drill Helper DOCNO.
HIRA/MINING/01
rotating elements.

ii) Drilling and other operation shall not Mines

ii) Fall of boulder material
be carried on simultaneously on the
benches at places directly one above
the other. Foreman

iii) Flying of chips iii) Do not allow the work persons in the
from collaring vicinity of drill while collaring is going
on. Drill Operator
iv) Caught between
iv) Do not wear loose clothing.
the moving parts
Drill
Operator/
Helper
v) Eye injury during flushing v) No person shall stay near the
machine without wearing safety
goggles while flushing of hole is being Drill
carried on. Operator/
vi) Caught between Mines
vi) Never to attach rod couplings or
the moving parts Foreman
bits to a rotating part of drill rig.

vii) Hitting of drill vii) No persons are allowed to remain

rig/broken material Drill Helper
for any cause at the place which is just
below the bench where drilling is
operated.
Mines
viii) Fall from height
viii) No person will be exposed to
the edge while drill machine is
operated. Foreman
If drill rod to be changed, use safety
belt
ix) Fall of broken edge
Mines Foreman
from
ix) Before putting the machine to
drill hole at the toe, a competent
person will inspect and declare
the site safe for drilling.
Mines Foreman
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ACTIVITY Drilling Operation SITE DEPARTMENT

SOP NO. SOP/EG/MINING/01 REVISION 00 EFF DATE: 3/3/24 NO. OF PAGES Page 7

high wall x)For dealing with socket or misfire Blaster

hole, the relieving hole is to be drilled
in the same direction and at least
1meter distance from that hole. The
hole should be drilled preferably in the
x)Drill bit contact to presence of blaster who had charged
misfire/socket the face.

Environment-
i) D i) No dry drilling will be allowed. Drill Aspect
No.6
ust ii) While approaching the drilling Operator
area , the work person and persons
in the supervision will use ear muff. Shift Aspect
ii)Nois No.7
Incharge
e

Quality-
i) Authorised i) The operator will not allow Drill Operator DOC.NO.
WI/OPRN/01
person will operate any un- authorized person to
the machine. operate the machine.

ii) Lower down the rotary head Drill Operator

attachment till bit touches ground.
ii) Start drilling Give feed, rotation & operate water
operation pump.
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OH&S-
6 Changing of drill rod(Rod i) Fall of suspended tools i) Do not allow any Drill DOCNO.
attachment & detachment) person under suspended tools. Operator/ HIRA/MINING/01
Drill Helper

ii) Throw of ii) Proper size of spanner shall

spanner during be used to hold back the column of Drill
coupling-decoupling drill rod tightly. Defective tools will Operator/
not be used in the process. Drill Helper
 Environment-
i)Contamination of soil due i)Ensure that there is no spillage Drill Operator Aspect
to spillage of grease of grease during rod joining. No.16

Quality- DOC.NO.
i) Changing of drill rod i) Rod attachment: Drill Operator WI/OPRN/01
a) After spanner holds the first
rod , open the rotary head from the
adapter of 1st rod .Rotary head is
moved to the top. Rod carrier is
brought just below the rotary head
& rotary head is attached to the
2nd rod.2nd rod is taken out from
the rod carrier & by lowering down
both the rods are joined. Apply
grease while joining of rods.

b) Rod detachment:
De-thread the 2nd rod from 1st rod
then place the rod in its casing and
ensure proper locking of rod with rod
carrier.
Detached the rotary head from
2nd rod. Lower the rotary head safely
& joint the 1st rod with it .
OH&S -
7 Covering of holes i)Plug the hole after drilling to avoid Blasting Foreman DOCNO.
i)Injury due to fall HIRA/MINING/01
stepping unknowingly.

Environment-Nil
Quality- DOC.NO.
i)Precaution for the drill i)Plug the hole to prevent damage of collar & Blasting Foreman WI/OPRN/01
hole fall of foreign material inside the drilled hole.
 OH&S -Nil
8 In case of any breakdown or
operational difficulty
Environment-
i)Contamination of soil due i) Arrest the leakages Drill Operator Aspect No.16
to oil spill immediately.

Quality- DOC.NO.
i) B/D intimation i) Any breakdown or Drill Operator WI/OPRN/01
operational difficulty will be
informed immediately to the
supervisor.
Drill Operator
ii) Emergency ii) Know the operation of fire
extinguisher.

OH&S -
9 Bit Grinding i)Use safety goggles while grinding Drill DOCNO.
i)Eye injury HIRA/MINING/01
the bit. Operator/
Drill Helper

Environment--Nil

Quality-
i)Grinding of drill bit i)Place the grinding table near the Drill DOC.NO.
WI/OPRN/01
receiver tank of drill machine Operator/
Fill 05 to 10 drops of rock drill oil in Drill Helper
the
 grinding tool .Connect one end of
the air hose to the nipple provided
at the main air line and the other
end to the grinding tool . Place the
bit to be grinded vertically in the
groove in the grinding table. Fix the
grinding stone on the grinding tool.
Open the valve at the main air line.
First start the grinding of
carsets/buttons .Check the angle of
the carsets/buttons intermittently
with the help of templates. When
the angle comes to 110 degree
grinding is complete.

OH&S - DOCNO.
10 Bit detachment & attachment i)Injury due to fall of i)Handle the hammer carefully. Drill Helper
HIRA/MINING/01
hammer

Environment-Nil .

Quality- DOC.NO.
i)Detaching or attaching i)(a)Remove the centraliser. Place the Drill Operator/ WI/OPRN/01
the bit
drill bit chuck in its position. Place the Drill Helper
chain
spanner. Bolt one end of the
chain
spanner to the break out wrench
and
connect the other end to the wire
sleeve
of the drill. Open the break out
wrench.
Bit should get loosened by
two/three
pitch. If the chain spanner slips at
the
grip then tighten the adjusting bolt of
the
chain spanner and/or give a
packing
.Give reverse rotation to the rotary
The
bit will open.

b)Place the bit on the bit

detaching chuck and the bit
retaining rings on the
 shank of the bit. Place the
centralizer over the bit. Bring the
DHD-Rod-Rotary assembly to the bit
and give forward rotation. Raise the
rotary system and remove the bit
detaching chuck.

OH&S -
11 Hammer changing i)Handle the hammer carefully so Drill Helper DOCNO.
i)Injury due to fall of HIRA/MINING/01
that it will not fall.
hammer

Environment-Nil

Quality- DOC.NO.
i)Changing of hammer i)Hold the hammer by spanner. Give Drill WI/OPRN/01
reverse rotation. The hammer will Operator/
open. With the help of winch motor, Drill Helper
utility rope is brought down with the
cap & fitted to the hammer. Remove
the spanner & take out or fit the
hammer.

OH&S -
12 Parking i)Pick the safest place for parking so Drill Operator DOCNO.
i)Striking by other HIRA/MINING/01
equipment that will not obstruct the other work
equipment or hauling operation in
that road.

Environment-Nil
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FORM NO.HSE/CORP/4
ACTIVITY Drilling Operation SITE SMC DEPARTMENT Mining
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Quality- DOC.NO.
i)Placing of Machine before i)Keep the drill unit at a place and in Drill Operator WI/OPRN/01
blasting a direction so that the blasted
projectiles will not affect it.

OH&S -Nil
13 Switch off the machine

Environment- i)
Consumption of natural i) Switch off lights,fans,AC Drill Operator Aspect No.33
resources(diesel & power) when m/c is not in use,

Quality- DOC.NO.
i)Switch off the machine i)When not in use, move the Drill Operator WI/OPRN/01
when not in use machine out the face, lower the
mast & keep in the guide and park
on a level ground, Keep idle for a
few minutes & switch off ignition
key . Then close and lock the cabin.
Cutoff power from cutoff switch.

OH&S -Nil
14 Reading and writing of Logbook

Environment-Nil

Quality- DOC.NO.
i) Read machine Log i) At the beginning of shift, read Drill Operator WI/OPRN/01
Book. the status of machine in the Log
Book.

ii) At the end of shift write the

ii) Write Log Book status of machine in the Log Book.
regularly
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15

Name Prepared by Approved by

Designation
Signature:
Date: