8
Scope of
application
Secoroc YT29A, YT29AE,YT29AE(T)and 7655D is a heavy-duty
pusher leg Rock Drill featuring high efficiency and low air con-
sumption� It is primarily designed for drilling in mines, hydro-
power stations, and road construction projects� It is also a new
product suitable for tunneling and other stone works in mining
and metallurgical industry�
Secoroc YT29A is suitable for both horizontal and upward anchor
holes in medium-hard and hard rocks (100–350 MPa)� The hole
diameter range is from 32 mm to 45 mm with depths up to 5
meters� The Rock Drill is equipped with lubricator FY250� Secoroc
YT29A is intended to be used together with pusher leg FT160A,
FT160B, FT160C for different tunneling and work conditions� It is
also designed for dry drilling or wet drilling mounted on rigs�
Specification
Pneumatic
rock drill
YT29A,
YT29AE
YT29AE
(T)
7655D
Weight 27 32 24 Kg
Dimension
(L x W xH)
659x248x205 807x450x255 668x232x202 mm
Cylinder
Diameter
82 82 70 mm
Piston
Stroke
60 60 70 mm
Working
Pressure
4-6,3 4-6,3 4-6,3 Bar
Impact
Energy (at
5 bar (e))
≥70 ≥70 ≥57 J
Air
Consump-
tion (at 5
bar (e))
≤65 ≤65 ≤52 l/s
Impact
Frequency
(at 5 bar (e))
≥37 ≥37 ≥31 Hz
Water
Pressure
Working
Pressure -1
Working
Pressure -1
Working
Pressure -1
Bar
Air Hose
Inner
Diameter
25 25 19 mm
Water
Hose Inner
Diameter
13 13 13 mm
Drilling
Diameter
32-45 32-45 34-42 mm
Max
Drilling
Depth
5 5 5 m
Working
Temp-
erature
-30 to + 45 -30 to + 45 -30 to + 50 ºC
Shank
Size
H22/25x108 H22/25x108 H22x108 mm
Lubricator
FY250
Lubricator
FY250
Lubricator
FY200
Weight 1�2 1�2 1,2 Kg
Capacity 0�25 0�25 0,2 litre
Safety instructions
To reduce the risk of serious injury or death to yourself or others,
carefully read through this instruction booklet before putting
the rock drill to use� Always follow the instructions given in this
manual�
• Always wear a safety helmet, goggles and ear protectors during
drilling� Any local regulations that exist must also be observed�
• When drilling in certain minerals, there is a risk of spark genera
-
tion� Before starting work, check that the machine is approved (in
accordance with local regulations) for work under such condi-
tions�
• Always take great care when using the machine� The working
tool is subjected to heavy loading and can break, with a risk of
injury to personnel�
• Check that the hoses used are of the right quality, and that all
hose connections are in good condition and properly tightened�
• Before starting work on any of the systems, make sure that the
air and water systems are without pressure�
• Make sure that there are no concealed wires or other sources of
electricity� Never drill near any electric wires or other sources of
electricity�
• Always make sure that main valve on the main hose is switched
off when the rock drill is not in use� This is needed to avoid the risk
of unintentional start of the machine�
• During drilling, stand firmly and always hold the machine with
both hands� Do not hang or lean over the machine during opera
-
tion, as there is a risk of injuries due to falling� Always use PPE
(Personal Protective Equipment) when operating the rock drill�
Overview
To reduce the risk of serious injury or death to yourself or others,
read the Safety instructions section found on the previous pages
of this manual before operating the machine�
Labels
The machine is fitted with labels containing important information
about personal safety and machine maintenance� The labels must
be in such condition that they are easy to read� New labels can be
ordered from the spare parts list�
Data plate
A� Machine type
B� Maximum permitted compressed air pressure
C� Serial number
D� The warning symbol together with the book symbol means that
the user must read the safety and operating instructions before
the machine is used for the first time�
E� The CE symbol means that the machine is EC-approved� See the
EC declaration which is delivered with the machine for more infor
-
mation� If the CE symbol is missing, it means that the machine is
not EC-approved�
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General