80192115_ed2
EN-1
EN
Product Safety Information
Intended Use:
Model YT28 Air Percussive Rock Drills are mainly used for tunnelling work in mines and
drilling holes in medium and hard rock. They are also important tools for quarrying works,
coal mines, railway, hydraulic engineering and national defense. Fitted up with line oiler
and air-leg (FT160A for YT28). The machines are suitable for wet drilling in medium and
hard rock. They can also be mounted on jumbos. YT28 is suitable for drilling rocks with a
hardness of = 8~18.
WARNING
Before operating a new tool, it should be run at low pressure for 5 minutes. If there is a
problem, the tool should be disconnected and cleared up of all spare parts. Inspect then
thinly re-coat the grease on surfaces of parts which touch others. Finally reassemble
and insert the shank clockwise into the chuck bushing and again check the tool at a low
pressure free running.
Never forget to refill oil into the oil liner and adjust the oil valve before operating the
tool. The working tool should be lubricated every hour. Use only proper lubrication. Do
not run the tool without lubrication.
Start the tool lightly, then gradually throttle to full thrust. Do not permit full rotation
at full thrust. Also do not operate free running for long periods of time to prevent
unnecessary damage to parts. It is acceptable to pull rods from tools at medium speeds.
Do not operate the tool without a water tube.
After used, disassemble the water tube and run the tool free to blow out condensed
moisture to prevent rust.
After tools have been in operation for a long period of time. They should be checked
and maintained regularly at least once per week. Parts should be washed and replaced
for new ones if damaged.
To store up a used tool for a long period of time, first disassemble the tool, clean and
lubricate, wrap up.
Operator must abide by technical regulation of rock drill operations and especially pay
attention to breaking of drill rod to prevent serious accident.
For additional information refer to Air Percussive Drill Product Safety Information Manual
Form 04584975.
Manuals can be downloaded from www.irtools.com.
Product Specifications
Model
Weight Over
Length
Cyl.
Dia.
Piston
Stroke
Free
Speed
Impact
Energy Pressure
Impact
Frequency
Air
Consumption
(Kg)
(mm) (mm) (mm) (mp)
(J)
(Mpa)
(Hz)
(L/S)
YT28
26
661
80
60
≥300
70
0.50, 0.63 ≥34, ≥36
≤55, ≤81
Model
Drilling Speed Air Hose Size
Water
Hose Size Bore Dia. Drilling Depth
Shank
(hex. XL)
(mm/min)
(mm)
(mm)
(mm)
(m)
(mm)
YT28
≥420
25
13
34~42
5
22 x 108
•
•
•
•
•
•
•
•
Summary of Contents for YT28
Page 22: ...Notes...
Page 23: ...Notes...
