Yt27 Pneumatic Rock Drill Air Leg Jack Hammer

• Customization: Available
• Condition: New
• Customized: Customized
• Model NO.: YT27
• Pneumatic Drill: Hammer
• Usage: Mining Drill
• Certificate: CE
• Color: Any Color
• Type: Air Drill
• Working Style: Reciprocating Type
• Air Wrench Type: Pulse Pneumatic Wrench
• Pneumatic Drill Range: Mining
• Degree of Automation: Semi-Automatic
• Screwdriver Startup Mode: Hand Press
• Brand: Atlas Copco
• Transport Package: Wood Case and Carton
• Specification: CE
• Trademark: GM
• Origin: China
• HS Code: 84671900
• Production Capacity: 1000set/Year
• Package Size: 73.00cm * 30.00cm * 22.00cm
• Package Gross Weight: 30.000kg

Product Description

YT27 Air-leg Rock Drill
Instruction
The rock drill is a kind of high efficiency air leg rock drill machine. It is mainly used for blasting holes and other drilling works in a quarries, railway construction, water conservancy construction and national defence project facility.
When it is matched with Model FY250 Oil reservoir and Model FT160A or FT160B Air-leg , it is suitable for wet drilling under various of rocks at aclinic and incline orientation, it can also use in the trolley without Air-leg.

Specification
Weight                                                      27 kg
Outside dimension(L×W×H)                         668×248×202mm
Cylinder dia                                                 80mm
Piston stroke                                                60mm
Impact energy                                             ≥75.5J
Impact frequencey                                        ≥ 36.7Hz
Air consumption                                        ≤83.3L/S
Air pipe (inner dia)                                           25mm
Water pipe (inner dia)                                       13mm
Air pressure                                               0.63MPa
Water pressure                                             0.3MPa
Bore dia                                                 34-45mm
Bore depth                                                    5m
Shank dimensions(hex×length)                     22×108±mm×mm

Model FY250B oil lubircator
Weight                                                      1.2kg
Oil capacity                                                  0.25L
Air leg                       FT160A                      FT160B
Weight                           17kg                       16 kg
Llength: max                    3006mm                    2526mm
min                           1668mm                    1428mm
Propulsion stroke                1338mm                    1098 mm
Axis thrust (max)                 2000N                       2000NMaintenance
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, then 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 parts fast. And if 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 operator handle whether is free to move, ensure machine operate normally .
4,The lubricating oil into oil reservoir before using machine and mix up the accelerograph. and do not operate machine without lubricating oil.
5,Before using machine, increase holding power, while operate machine increasingly. Do not 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 aviod hurt.
9,If machine should store for a long time. Diamantle machine first, oil and seal them, then put it in 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 that not use grease lubrication avoid to obstruct pipeline, reduce machine efficiency and acceleration element wear. In different season has different 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

• 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,Do not allow use low burning point and easy explosion lubricating oil.
Malfunction and solution

Parts and Illustrations
parts list

No	Part No	Name	Qty		No	Part No	Name	Qty
1	YT27-3.12A	Right handle	1		34	YT25-3.17A	Tight pin	1
2	YT27-3.18A	Damping handle	1		35	YT27-3.06	Control handle	1
3	YT27-3.19A	Left handle weldment	1		36	GB93-	Spring pad	1
4	GB879	Spring pin 8×25	1		37	GB6172-	Hex.thick nut	1
5	YT27-3.16	Trigger	1		38	YT27-3.11	Spring	1
6	YT25-3.34	Spring ring	1		39	YT27-3.13	Pressure regulating valve	1
7	YT25-3.05	Spring cap	1		40	YT27-3.12	Swll ring	2
8	YT25-3.06	Spring	1		41	YT27-3.14	Yoke ring	1
9	GB1235	O-ring 25×2.4	2		42	YT27-3.15	Change-over valve	1
10	YT25-3.11	Water injectin valve	1		43	GB1235	O-ring	2
11	GB1235	O-ring 8×1.9	2		44	YT27-3.07	Control valve	1
12	YT25-3.13	Rubber pad	1		45	YT25-3.12	Pad	1
13	YT27-3.02	Water injection valve set	1		46	YT25-3.33	Yoke ring	1
14	GB1235	O-ring 24×2.4	2		47	7655-3.07	Air pipe nut	1
15	YT25-3.35	Pad	1		48	7655-3.09A	Air connection tube	1
16	YT27-3.03	Water tube sleeve	1		49	YT27-3.10	Water connectiong tube yoke ring	1
17	YT25-3.10	Water tube	1		50	YT27-3.09	Water pipe nut	1
18	YT27-3.04	Air tube component	1		51	GB1235-	O-ring 16×2.4	2
19	YT25-3.14	Air tube pad	1		52	YT27-3.08	Water connection	1
20	YT27-3.01	Handle	1		53	YT27-1.09	Cylinder	1
21	YT25-3.21	Setting pin	1		54	YT27-1.06	Muffler	1
22	YT25-3.20	Spring	1		55	ZBJ15001	Hoop N.04X	1
23	YT25-1.14	Ratchet pawl	4		56	YT27-1.10	Guide sleeve	1
24	YT25-1.15	Crowned spring	4		57	YT27-3.05	Side bolt	2
25	YT27-1.07	Rifspring	1		58	GB56-	Hex.thick nut	2
26	YT27-1.01	Ratchet	1		59	YSP45-203A	Riflnut	1
27	YT27-1.05	Setting pin	1		60	YT27-2.02	Rotary sleeve	1
28	YT27-1.11	Valve cover	1		61	YT27-2.03	Shank sleeve	1
29	YT27-1.03	Valve	1		62	YT27-2.01	Front head	1
30	YT27-1.02	Valve chest	1		63	7655-2.04	I-hex.locking nut	2
31	YT27-1.04	Valve sleeve	1		64	7655-2.05	Yoke spring	2
32	7655-1.11	Rif nut	1		65	7655-2.03A	Yoke bolt	2
33	YT27-1.08	Piston	1		66	7655-2.07A	Yoke	1

 Model FY250Oil Rservoir Parts List

No	Part No	Name	Qty		No	Part No	Name	Qty
1	FY250-1A	Oil pipe weldment	1		7	FY200A-4	Oil regulating vlave	1
2	FY250-3	shell	1		8	GB1235-79	O-seal ring 6×1.9	1
3	FY200-2	Retaining ring	1		9	GB1235-79	O-seal ring24×2.4	1
4	FY200-9A	Oil valve	1		10	GB1235-79	O-seal ring35×3.1	1
5	FY200-11	Spring retaining ring	1		11	52×3-25	O-seal ring	1
6	FY200A-2	Oil plug	1		12	GB172  M8	Hex.thin nut	1

Model FT160A Air-leg

No	Part No	Name	Qty		No	Part No	Name	Qty
1	FT160A-1	Locking nut	1		16	FT160A-16	Air pipe rubber pad	1
2	FT160A-2	Pad	1		17	FT160A-17	Handle	1
3	FT160A-3	Spring pad	1		18	FT160-11	Locking ring	2
4	FT160A-4	Locking sleeve	1		19	FT160-12A	Pipe	1
5	FT160A-5	Weldment	1		20	FT140-14	Air pipe	1
6	FT160A-6	Pad	1		21	FT140-16A	Dustproof sleeve	1
7	FT160A-7	Spring ring	1		22	30×3.1GB1235-79	O-seal ring	1
8	FT160A-8	Ring	1		23	32×3.1GB1235-79	O-seal ring	1
9	FT160A-19	Yx-seal ring	2		24	38×3.5GB1235-79	O-seal ring	1
10	FT160A-10	Double Yx-seal ring	1		25	45×3.1GB1235-79	O-seal ring	1
11	FT160A-11	Outer tube	1		26	GB5782M10×45	Hex.bolt	3
12	FT160A-12	Pistion drill weldment	1		27	GB6172 M10	Hec.thin nut	3
13	FT160A-13	Guide sleeve	1		28	GB93  10	Spring pad	3
14	FT160A-14	Center	1		29	GB93  22	Spring pad	1
15	FT160A-15	Weldment	1		30	GB893.1  22	Spring retaining ring	1