Yt23 Yt23D Air-Leg Rock Drill

• Application: Pneumatic Breakers
• Condition: New
• Color: Any Color
• Transport Package: Carton
• Specification: 24kg
• Origin: China
• Model NO.: YT23 YT23D

Product Description

YT23Air-leg Rock Drill
                      
,Instruction
The rock drill of YT23 is a kind of high efficiency air leg rock drill machinery. it is mainly used for blasting holes and other drilling works in a quarries, railway construction, water conservancy construction and defence project facility. When it is matched with the Model FY200A  Oil reservior and Model FT160A or FT160B Air-leg, it can perform wet drilling and blast holes from different and angles.
,specification
Weight                                                            24 kg
Length                                                          628mm 
Air pressure                                                     0.63MPa
Cylinder dia                                                        76mm
Piston stroke                                                       60mm
Impact frequencey                                                 ≥ 36Hz
Impact energy                                                    ≥  65J
Air consumption                                                 ≤80 L/S
Idel speed                                                      ≥300r/min
Noise                                                         ≤112dB(A)
Water pressure                                                  0.2-0.3MPa
Air pipe (inner dia )                                                   25mm
Water pipe (inner dia )                                               13mm
Bore dia                                                         34-42mm
Bore depth                                                           5m
Shank dimensions(hex×length)                           22×108  mm×mm
Model FY200A oil lubricator
Weight                                                             1.2kg
Oil capacity                                                          0.2L
Air leg                                FT160A                    FT160B
Weight                                    17Kg                     16 kg
Length:max                              3006 mm                  2526mm
min                              1668 mm                  1428mm
Propulsion stroke                          1338 mm                 1098 mm
Axis thrust(max)                           2000 N                   2000N
, Maintenance
,Notice
1,Dismantle new machine and clean parts before using new machine, when assembling machine,
oil parts. then operate and check machine before using it, but the time is about 10minutes and air pressure is low (0.3Mpa for better).
2,The air pressure should be kept at 0.5-0.63 MPa.(measure in rubber tube), if the air pressure is too high, it will damage parts.if the air pressure is too low,it will affect the speed of drilling and  machine normal working
3,Before using machine, blow off dirty to protect parts. inspect the screw thread whether is tight and operating handle whether is free to move, ensure machine operate normally.
4,Oil lubricating oil into oil lubricator before using machine, oil oil reservoir every other hour.Do not operate machine without lubricating oil.
5,Before using machine, increase holding power,while operate machine increasingly. Donot operate machine at the max thrust or should not idle machine too long, it will damage parts.
6,Diamantle water pipe and operate machine after blasting holes. It can blow off the rest moisture and protect parts away from rusting .
7,The rock drill is centre water-injection drilling. Do not operate without water and dismantle water needle.
8,Tighten two side bolt nuts to protect parts and tighten air pipe to aviod causing injure
9,If machine should store for a long time.diamantle machine first , oil and seal , then placed a dry place.
,lubricating oil
Lubrication has great influence in the performance and working life. Do not operate machine without lubricating oil, it is better not to use grease lubrication to obstruct pipeline, reduce machine efficiency and acceleration element wear.
Please refer to following list when choose lubricant.

Temperature	Name	NO	Kinematic viscosity	Solidifying  point	Standard
-30--10	Refrigerator oil		11.5-14.5(50ºC)	-40ºC	ZBE34003-86
-10-0ºC	Turbine oil	N22	20-23(50ºC)	-10ºC	GB2537-81
0-30ºC	Cylider oil (30%) Machine oil (70%)	HG-24+HJ-50	20-28(100ºC) 47-53(50ºC)	15ºC -10ºC	GB447-77 GB443-84

,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.
4,Do not allow ues low burning point and easy explosion lubricating oil.

,Malfunction and solution

Malfunction	Cause	Solution
Difficult to  operate	Low air pressure	If pipeline is over-burden,reduce machine number
		check air pipe dia and valve switch whether too small,if so ,change it.
		If air pipe is too long, cut short
	Lack of Air-leg thrust	Enlarge angle between air-leg and floor
		Seal ring abrase,change it
		Trigger or change-over valve cann't move .mend it at once
	Water intake	Water pressure is higher than air pressure, water flow into cylinder ,damage lubrication. Lower water pressure immediately
		Water injection system out of work ,water and air run into machine,check it at once
	Muffler icing	Thaw out
	Bad lubricate	No  lubricating oil, oil it
		Block oil hose , clean and blow off dirty
		If use wrong lubricating oil ,do use standard oil.
	Water flow out from front head.damage normal lubrication	If water tube broken,change it
		If drill hose is blocked or too small, change it
		Water tube dia ≤3mm
	Part abrase	If cylinder and piston surface abrase, rubdown it with oilstone
		If distributing valve abrase,change it
		If piston nut rotation sleeve and other parts damage,change it
	Dismantle water tube	Assemble it
	Lubricating too much	Adjust it
	Water intake	Find out trouble and resolve
Water tube broken	Piston damage or Shank midlevel outlet position is wrong	Change piston or drill
	Clearance is too large between shank and drill sleeve	Hex size abrase over 25mmm,change another one
	Water tube is too long	Adjust water tube length
	Shank hose is too low	As draw specification process it
Out of use	Water pressure is too high	Lower water pressure (≤0.1Mpa)
	Block hose	Drill through hose
	Parts rust	Clean and remove rust
	Srping out of use	Change it
	Rubber ring damage	Change it
Drill broken	Air pressure is too high	Lower air pressure
	Operate machine immediately	Operate it increasingly
	Drill is flect	Change it
	Angle is too small	As draw process shank
	Heat treating trail	Improve process

YT23D Air-leg Rock Drill
, Instruction
The rock drill has good performance under low pressure,it is suitbale for act impetus with long Air pipe and small air compressor.And it is use for drilling in mines,quarries,railway construction,water conservancy and national defence project facility. When it is matched with Model FY200A oil reservoir and Model FT160A or FT160B air-leg, it can perform wet drilling under various of rocks at aclinic and incline orientation,it can also use in the trolley without Air-leg.
, Specification
Weight                                                             24 kg
length                                                            668mm
Air pressure                                                   0.35-0.63MPa
Cylinder dia                                                          70mm
Piston stroke                                                          70mm
Impact frequencey(at0.4MPa)                                            ≥28HZ
Impact energy(at0.4MPa)                                                 ≥45J
Air consumption (at0.4MPa)                                          ≤38 L/S
Noise                                                            ≤112dB(A)
Water pressure                                                    0.2-0.3MPa
Air pipe (inner dia)                                                    19 mm
Water pipe (inner dia)                                                13 mm
Bore dia                                                          34-42mm
Bore depth                                                              5m
Shank dimensions(hex×length)                                     22×08 ±1 mm

Model FT200A Oil reservior
Weight                                                                .2kg
Oil capacity                                                            0.2L
Air leg                                  FT160A                     FT160B
Weight                                  17Kg                        16 kg
Length:max                             3006mm                      2526mm
min                             1668mm                      1428mm
Propulsion stroke                       1338 mm                      1098 mm
Axis thrust(max)                          2000N                        2000N
, Maintenance
(), Notice
1,Dismantling new machines and clean the parts, dispose of antirust grease before using it. The parts of exterior must be lubricate when relocate, operate and check machine about 10minutes and is low air pressure (0.3Mpa) before using it.
2,The air pressure should be kept at 0.5-0.63 MPa.(measure in rubber tube), if the air pressure is too high, it will damage the parts fast.And the air pressure is too low,it will affect the speed of drilling and the machine is also normal working.
3,Before using machine, blow off dirty to protect parts. Inspect the screw thread whether is tight and the operater handle is free to move, ensure machine operate normally .
4,The lubricating oil into oil reservoir before using machine and mix up the accelerograph. The lubricating oil into oil reservoir each hour,and do not operate machine without lubricating oil.
5,Before using machine,increase holding power,while operate machine increasingly. Donot operate machine at the max thrust or should not idle machine for a long time, it will damage parts.
6,Dismantling water pipe and operate machine after blasting holes. It can blow off the rest moisture and protect the parts away from rusting .
7,The rock drill is centre water-injection drilling. Do not operate without water and dismantle water needle.If dismantle the water needle ,the machine will not operate.
8,Tighten two side bolt nuts to protect parts and tighten air pipe to avoid hurt.
9,If machine should store for a long time.Diamantle machine first ,oil and seal them, put it in a dry place.
() ,lubricating oil

Temperature	Name	NO.	Kinematic viscosity	Solidifying point	Standard
-30--10	Refrigerator oil		11.5-14.5(50ºC)	-40ºC	ZBE34003-86
-10-0ºC	Turbine oil	N22	20-23(50ºC)	-10ºC	GB2537-81
0-30ºC	Cylider oil (30%) Machine oil (70%)	HG-24+HJ-50	20-28(100ºC) 47-53(50ºC)	15ºC -10ºC	GB447-77 GB443-84

Lubrication has great influence in the performance and working life.Do not operate machine without lubricating oil , it is better that not use grease lubrication avoid to obstruct pipeline and reduce machine efficiency and acceleration element wear.In different season has different oil .
(),Safety
1,Ensure that technical safe practices are employed.
2,Pay attention to the position of steel wire ring clamp,if found it fray,change it.
3,Check steel wire ring clamp whether or not abrase, if so, change another at once.
4,Pay attention to the Yoke shank will snap.
5,Do not allow use low burning point and easy explosion lubricating oi.
,Malfunction and solution
 

Malfunction	Cause	Solution
Difficult to operate	Low air pressure	If pipeline is over-burden,reduce the operating machines and eliminate the leak of the pipe.
		check air pipe dia and valve switch whether too small,if so ,change it.
		If air pipe is too long ,cut short it.
	lack of Air-leg thrust	Enlarge angle between air-leg and floor.  tighten the rack and pipe. Change the broken pressure regulation valve
		Seal ring abrase,change it in time
		Trigger or change-over valve cann't move .mend it at once
	Water intake	Water pressure is higher than air pressure, the water flow into cylinder ,damage the usual lubrication. play down the water pressure immediately.
		Water injection system out of work ,water and air run into machine,check it at once. Change the break off water needle. Change the small water needle's aperture(bigger than 3mm)
	Muffler icing	Thaw out
	Bad lubricate	Unworking without oil and don't use lubricate grease.
		Block oil hose , clean and blow off dirty
		Use standard oil.
	Water flow out from front head.damage normal lubrication	If water tube broken,change it
		If drill hose is blocked or too small, change it
		Water tube dia ≤3mm
	Parts abrase	If cylinder and piston surface abrase, rubdown it with oilstone
		If distributing valve abrase,change it
		If piston nut rotation sleeve and other parts damage,change it
	Dismantle water tube	Assemble it
	Lubricating too much	Adjust it
	Water intake	Find out trouble and resolve
Water tube broken	Piston damage or Shank midlevel outlet position is wrong	Change piston or drill
	Clearance is too large between shank and drill sleeve	Hex size abrase over 25mmm,change another one
	Water tube is too long	Adjust water tube length
	Shank hose is too low	As draw specification process it
Out of use	Water pressure is too high	Play down the water pressure (≤0.1Mpa)
	Block hose	Drill through hose
	Parts rust	Clean and remove rust
	Srping out of use	Change it
	Rubber ring damage	Change it
Drill broken	Air pressure is too high	Lower air pressure
	Operate machine immediately	Operate it increasingly
	Drill is flect	Change it
	Angle is too small	As draw process shank
	Heat treating trail	Improve process