TM 5-3805-281-10
SUMMARY OF INSTRUCTIONS
a) Maintain even pressure on the hammer.
b) Follow the hammer during penetration of the material.
c) Always maintain a constant optimal pressure level.
d) Correct loading ensures hammer productivity and avoids damage to its component.
REGULAR MAINTENANCE
a) If the breaker is operating at temperatures below -15 Celsius, increase the nitrogen
charge pressure by 20% of the value recommended in normal conditions (notify your
supervisor). Disassemble the tool and store it in a place where the temperature is
above 0 Celsius. DONOT heat up the tool with a torch or other device before operation.
Operate the tool slowly for the first 15 feet of excavation in order to gradually warm
up the tool. Never leave the tool exposed to inclement weather, as this will oxidate
the bushing contact area.
b) The hydraulic oil feed viscosity must not be below 15 CST. The maximum oil tem-
perature during operation should not exceed 75 Celsius (160 Fahrenheit).
c) When the hammer is not in use, it must be kept in a vertical position. This will allow
any water or condensation to run off of the piston and prevent rusting which may
cause seal failure and leakage.
