Safety Instructions - Bosch Rexroth A6VM series 71 Manual

Safety instructions

▶ During and shortly after operation, there is a risk of
burns on the axial piston unit and especially on the
solenoids. Take appropriate safety measures (e.g., by
wearing protective clothing).
▶ Moving parts in control equipment (e.g. valve pistons)
can, under certain circumstances get blocked in position
as a result of contamination (e.g. impure hydraulic fluid,
abrasion, or residual dirt from components). As a result,
the flow of hydraulic fluid and the build-up of momen-
tum in the axial piston unit can no longer meet the
operator's specifications. Even the use of various filter
elements (external or internal flow filtering) cannot rule
out errors, but can only help minimize risks. The
machine/system manufacturer must check whether
additional measures are required on the machine for the
relevant application in order to bring the powered load
into a safe position (e.g. safe stop) and ensure any
measures are properly put into practice.
▶ In certain conditions, moving parts in high pressure
relief valves might get stuck in an undefined position
due to contamination. This can result in restriction or
loss of load holding functions in lifting winches. There-
fore it is the machine and/or system manufacturers
responsibility to make sure that the load can always be
put in a safe mode if needed. Also, he needs to ensure
that these measures are properly implemented.
▶ When using the axial piston motor in winch drives, make
certain that the technical limit values are not exceeded
under all operating conditions. If the axial piston motor
is extremely overloaded (e.g., if the maximum permis-
sible rotational speeds are exceeded during weighing of
the anchor while the ship is in motion), the rotary group
may be damaged and, in the worst case, the axial piston
motor may burst. The machine manufacturer / system
manufacturer is to undertake additional measures, up to
and including encapsulation.
Axial piston variable motor | A6VM series 71 Axial piston variable motor | A6VM series 71
RE-A 91610/12.2015, Bosch Rexroth Corp.
75
Safety instructions