Y20ly Air-Leg Rock Drill for Versatile Applications

• Application: Pneumatic Breakers
• Condition: New
• Color: Any Color
• Transport Package: Carton
• Specification: 18kg
• Origin: China
• Model NO.: Y20LY

Product Description

Model Y20LY Hand-hold and Air-leg Rock Drill

Instruction
The rock drill is a kind of light rock drill machinery. It can perform both dry and wet drilling under medium hard or hard rock(f=8-18).(the diameter of blast hole is 34mm-40mm, the depth of hole is 3m)
This machine can drill downward with hand toward horizontal or acclive,when it is matched with air-leg model FT100, it is suitable for drilling works in various mines,quarries,capital construction of farmland, blasting for constructing roads in mountain areas and other projects.
This machine has transparent surface of FY200B lubricator to guarantee good lubrication,but also can be matched with model FT100 air leg.
Specification
Weight                                                       ≈18kg
Length                                                     ≈609mm
  Cylinder dia.                                                   60mm
  Piston stroke                                                   50mm
Air pressure                                                   0.4Mpa
Impact frequency                                               ≥30Hz
  Air pipe inner dia                                          16 or or19mm
  Water pipe inner dia                                               8mm
Air consumption                                              ≤25 L/S
Shank dimension                                     22×108mm±1mm
Bit dimension                                                34- 40mm
FT100type air leg
Length                                                      1312mm
Piston stroke                                                   810mm
Cylinder dia                                                    52mm
Weight                                                       ≈11kg
Maintenance
Notice
1,Machine should oil the rustproof grease before leave factory, should dismantle for clean before using, on reassembling oil the joint surface and use.
2,When connecting water pipe and air pipe, blow off dirty to protect parts.
3,Before using machine,ensure to check every parts of machine and to oil lubricating oil into oil reservoir.

1. When finishing using machine,cut off water supply and operate machine slow ,then blow off the rest moisture to avoid rusting parts.
2. Ensure that maintain machine at intervals. Clear dirty and change damaged,frayed and deteriorated parts at least once a week.
3. If machine should store for a long time.diamantle machine first ,oil and seal , then placed a dry place.

Lubiration
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,The air pipe inner dia. is 16mm, length don't exceed 15meter, and connector joint dia. is not less than 16mm. This machine has amphibious pipe connector, clients could match the air pipe which inner dia. is 19mm.
  2,Picture1 is the chisel rate and air pressure relation line of hand-hold with air leg rock drill. The work air pressure is 0.4-0.5Mpa in general.
Water pipe and pressure
     The water pipe inner dia. is 8mm. Water pressure is 0.2-0.3Mpa of work air pressure in general. Water resource could adjust measures to local conditions, could use water jar pressure(water jar pressure is 0.25Mpa-0.35Mpa), if no water source pressure, or for supply water by put the fill water ware on high altitude make pressure difference.
Shank pole
Should take the standard hex. Middle hollow shank pole(GB6481-86). Shank trail should process according to picture2, if the consumer use shank pole, and accord with following request.

1. The end face by shank trail level off and plumb with shank pole axes, the inverse angle could not too large, the heat treatment rigidity: HRC49-55.
2. The axes by water tube hole of shank trail are not allow exceed 1mm, the hole dia. and depth should accord with the request by picture 2, otherwise easy to cut the water pipe.

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 sleeve
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 retainer ring with tool. When assembling, push air connection tube and water connection tube into the right handle, put steel retainer ring 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 retainer ring.
3 ,Check steel retainer ring whether or not abrase, if so, change another at once.
Malfunction and solution

Malfunction	Cause	Solution
Machine difficult to operate or empty wagon abnormally	Dirty in back head cylinder or valve components	Clean parts and remove dust
	Burr	Use oilstone to clean burr
	Lack of air-leg thrust	If air-leg abrase or damage,change it
		If seal parts damage,change it
		If pressure regulating valve seal ring damage, change it
	Wrong shank dimension	Standard shank dimension is 108±1mm
	Vibration	If the angle between air-leg and floor is too large or thrust is not enough, change angle or increase thrust.
		If shank sleeve abrase,change it
		If drill is flex,change it
	Bad lubricate	Oil standard lubrication oil
	Water intake	If water tube broken,change it
		If water tube sleeve abrase or broken, change it
		If drill block,change it
Rotate drill to be not good	Ratchet pawl abrase	Adjust machine or change it
	Crowned spring damage	Change spring
	Ratchet abrase	Adjust another side or change it