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Safety and operating instructions
Problem
Cause
Chipping of the piston tip
Misalignment of the shank
Excessive wear of the piston tip
Spline breakage
Lack of lubrication
Dirt intrusion (specially when drilling
upwards)
Piston breakage
Lack of lubrication
Uneven tension in the side bolts
Worn intermediate part/piston guide (can
be confirmed by the cushion test)
Side bolt breakage
Uneven tension on the bolts
1
Gauge for chuck bushing 22 mm (
2
Use Atlas Copco no. 9090 0550 80 pressure gauge to test the water and air pressure.
Machine data
Type
Part number
BBC 16W
8311 0401 10
BBC 16WS
8311 0303 46
BBC 34W
8311 0408 05
BBC 34WS
8311 0303 47
Air consumption (6 bar)
Type
BBC 16W
BBC 16WS
BBC 34W
BBC 34WS
Noise and vibration declaration statement
Guaranteed sound power level Lw according to ISO 3744 in accordance with directive 2000/14/EC.
Sound pressure level Lp according to ISO 11203.
Vibration value A and uncertainty B determined according to ISO 5349-2. See table "Noise and vibration data"
for the values of A, B, etc.
These declared values were obtained by laboratory type testing in accordance with the stated directive or
standards and are suitable for comparison with the declared values of other tools tested in accordance with
the same directive or standards. These declared values are not suitable for use in risk assessments and values
measured in individual work places may be higher. The actual exposure values and risk of harm experienced
by an individual user are unique and depend upon the way the user works, in what material the machine is
used, as well as upon the exposure time and the physical condition of the user, and the condition of the machine.
24
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7
⁄
") hexagon shank Atlas Copco no. 3091 0038 00.
8
Piston bore
Stroke length
mm
(in.)
70
(2
3
⁄
)
4
70
(2
3
⁄
)
4
80
(3
1
⁄
)
7
80
(3
1
⁄
)
7
l/s
Impact rate (6 bar)
3
(foot
/min )
69
(146)
69
(146)
88
(186)
88
(186)
© 2010 Atlas Copco Construction Tools AB | No. 9800 0627 71 | 2010-03-16
BBC 16W, 16WS, 34W, 34WS
Solution
Change the drill steel or chuck bushing or both
Change piston
2
Lower the water pressure
if it is the same as or greater than the
air pressure
Increase lubrication or change oil
Increase regularity of servicing
Lower the water pressure if it is the same as or greater than the air
pressure
Increase lubrication or change oil
Tighten the bolts correctly
Change the worn part
Tighten the bolts correctly
Overall length
mm
mm
(in.)
(in.)
55
710
(2
1
⁄
)
(28)
6
55
710
(2
1
⁄
)
(28)
6
70
775
(2
3
⁄
)
(30
1
⁄
)
4
2
70
775
(2
3
⁄
)
(30
1
⁄
)
4
2
Hole diameter
mm
Hz
(in.)
39
27-41
(1-1.6)
39
27-41
(1-1.6)
38
27-41
(1-1.6)
38
27-41
(1-1.6)
Weight
Shank dimension
kg
mm
(lb)
(in.)
26.0
22 X 108
(57.3)
(⅞ x 4¼)
27.0
22 X 108
(59.5)
(⅞ x 4¼)
31.0
22 X 108
(68.3)
(⅞ x 4¼)
32.0
22 X 108
(70.5)
(⅞ x 4¼)
Reaming hole diameter
mm
(in.)
≤76
(≤3)
≤76
(≤3)
≤76
(≤3)
≤76
(≤3)
Original instructions
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