OPERATION
While “Blank Firing” cannot always be avoided, it can be kept to a minimum by avoiding the above conditions as much as possible.
UNDERWATER USAGE
Underwater usage of the breaker will cause damage to internal components. Even if the breaker is partially submerged, water is introduced to an area between the tool bit and piston. On the piston down cycle, the water becomes compressed and damages adjacent compo- nents.
Do not use underwater without supplying air to breaker Do not use underwater without supplying air to breaker.
Figure 10. Underwater Restrictions
CAUTION
No part of the breaker may be submerged in
water. Underwater usage of the breaker will cause internal damage to the breaker. Consult Stanley for modifications and specific warranty coverage if you have an underwater requirement.
The breaker is equipped with an underwater port on the side of the breaker. Connect an air line to this port and supply the required air pressure and flow to the breaker when using underwater. The following chart shows the air flow rate and pressure required for various depths of operation.
Depth/Feet | Pressure/PSI | Air Flow Rate/ |
cfm | ||
60 | 53 | 69 |
50 | 44 | 60 |
40 | 35 | 52 |
30 | 27 | 44 |
25 | 22 | 39 |
20 | 18 | 35 |
15 | 13 | 31 |
10 | 9 | 27 |
5 | 4 | 23 |
0 | 0 | 18 |
GREASE THE BIT
Grease should be applied to the upper end of the break- er tool bit each time it is installed. Thereafter, the tool should be greased at the fitting to reduce wear in the lower body and bushings of the tool. See Greasing The Tool Bit in the sections titled
14 ► MB656 User Manual