Yt28 Pneumatic Rock Drill for Efficient Drilling

• Application: Pneumatic Breakers
• Condition: New
• Color: Any Color
• Transport Package: Carton
• Specification: 26kg
• Origin: China
• Model NO.: Yt28

Product Description

 YT28 Air-leg Rock Drill
,Instruction
The rock drill is a kind of high efficiency air leg rock drill machinery. It is mainly used for diging into mine laneway and blasting holes in all drilling works. It is indispensably importance machine tool in metallurgy, coal, railway, traffic, water conservancy construction and national defence stone project.
It is suitable for drilling and blasting under various of rocks at any direction angles. Blast hole dia is 34-42mm, drill hole depth is 5 m This machine may match with Model FT160BD short air leg or Model FT160BC long air leg.
This machine has transparent surface of FY200B oil reservoir, easy to observe the oil lever, adjust oil quantity, ensure the well lubricated.
,Specification
Weight                                                               ≈ 26 kg
Length                                                                  661mm
Cylinder dia                                                               80mm
Piston stroke                                                               60mm
Air pressure                                                          0.4- 0.63MPa
Impact frequencey                                                        ≥ 37 Hz
Air consumption                                                        ≤81L/S
Air pipe (inner dia )                                                          25mm
Water pipe (inner dia )                                                      13mm
Drill bit dia                                                             34-42mm
Shank dimensions(hex×length)                                       22×108±1mm
The function specification that Air pressure is 0.63Mpa
FT160BD Air leg(short)
Length                                                                  1400mm
Push stroke                                                               965mm
Cylinder dia.                                                               65mm
Weight                                                                ≈ 14.4 kg
FT160 Air leg(long)
Length                                                                 1800mm
Push stroke                                                              1365mm
Cylinder dia.                                                              65mm
Weight                                                                ≈ 169 kg
FY200B oil reservoir
Oil capacity                                                               200ml


,Maintenance
,Notice

1. Machine should be oiled by the rustproof grease, before using. On using, reoil machine and assemble it .

1. When connecting water pipe and air pipe, blow off dirty to protect parts.
2. Before open machine, should inspect the flexibility and reliability of all control structure and operation part; oil reservoir be filled with lubrication, and measure oil quantity well, ensure mahine run regularly.

1. When finishing using machine, cut off water supply and let machine run slowly, then blow off the rest moisture to avoid rusting parts.

1. The machine which often use, should pay attention to maintenance. Examine and repair every week at least, Clean the dirty within the machine and note to replace and change the damage and invalidation parts, eliminate the malfunction and hidden trouble.

1. If machine should store for a long time, diamantle machine for clean, oil and seal, then placed a dry place.

 ,Lubrication
Lubrication has great influence in the performance and working life.Do not operate machine without lubricating oil

Temperature	Name	No	Flash  point	Kinematic  viscosity	Solidifying  point	Standard
10--30ºC	Machine oil	N46	180ºC	41.4-50.6(40ºC)	-10ºC	GB443-84
-10-10ºC	Machine oil	N22	170ºC	19.8-24.2(40ºC)	-15ºC	GB443-84
-30-30ºC	Refrigerator oil	HD-13	160ºC	11-15(50ºC)	-40ºC	Y1213-79

,Air pipe and pressure
1,Air pipe inner dia. is 25mm and it's length is ≤15m. Pipe connector dia. is ≥20mm.
2,This diagram show the relation between speed and air pressure.(0.4-0.63Mpa for better).
,Water pipe and pressure
Water pipe inner dia. is 13mm and water pressure is 0.2-0.3Mpa.
,Drill
    Drill specification is GB6481-86. as draw process shank.
,Dismantlement
1,Distributing valve
 Dismantle and assemble distributing valve, do not knock. After assembling, ensure that valve positioned correctly and is free to move between the two seats.
2,Shank cover
When dismantling shank sleeve,heat rotations sleeve up to 200ºC,insert shank (shank collar dia is ≤30mm) into rotation sleeve, then knock out shank sleeve with bishop. When assembling shank sleeve,heat rotation sleeve up to 200ºC, insert shank sleeve into rotation sleeve, knock shank into bottom.
3,Air connection tube and water connection tube
   When dismantling ,push in air connection tube and water connection tube,fetch steel wire ring clamp with tool. When assembling, push air connection tube and water connection tube into the right handle, put steel wire ring clamp into half slot ,then pull air connection tube and water connection tube
4,When assembling ,tighten two sides of side bolt nut to ensure every parts of machine work well.
,Safety
1,Ensure that technical safe practices are employed.
2,Pay attention to the position of steel wire ring clamp.
3,Check steel wire ring clamp whether or not abrase, if so, change another at once.