PROBLEM:
THE TOOL SPEED IS TOO HIGH OR TOO LOW
CAUSE
SOLUTION
The tool trigger and its ON OFF valve are
broken
Control, clean, repair or change
The
power
pack
gives
low
flow,
insufficient flow to tool – High back
pressure
Control the flow delivery of power pack in
case contact the nearest DOA service
agent
Broken tool or broken power pack or bad
oil circulation
Control or repair and contact the nearest
DOA service agent
Back pressure too high
Control and reduce hose length
PROBLEM:
TOOL WORKS WELL BUT THERE ARE POOR PERFORMANCES
CAUSE
SOLUTION
Drilling bits are inadequate to material or
to tool speed – Bad state of bit cutting
plaquettes or plaquette dull
Control and contact the nearest DOA
service agent
The material has plastic inside or bit has
encountered a steel rebar
Control if material is adequete to tool
work or change position of hole
High back pressure, hoses too long
Control and repair , in case unblock the
devise with a hand type system then
continue with tool