Installation 35/56
RE 15215-01-B/11.2015, MCR Series 30, 31, 32, 33 and 41,
Bosch Rexroth AG
Ports intended for connecting lines are sealed from contamination by protective
covers or threaded plugs. All ports required for the motor’s function must be
connected. If a port is not connected, it must be plugged with a threaded metal
fitting of sufficient capacity to withstand system pressure.
7.4.7 Hydraulically connecting the radial piston motor
WARnInG!
Risk of damage or injury!
Ensure all hydraulic connections are of the correct standard, size, thread type and
pressure rating. Failure to do so may lead to failure of the connection and high
pressure fluid leak.
The machine/system manufacturer is responsible for dimensioning the hydraulic
connections. The radial piston motor must be connected to the rest of the hydraulic
system in accordance with the hydraulic schematic of the machine/system
manufacturer.
The ports and fastening threads are designed for the maximum pressure specified in
the data sheet. The machine/system manufacturer must ensure that the connecting
elements and lines correspond to the specified application conditions (pressure,
flow, hydraulic fluid, temperature) with the necessary safety factors.
Observe the following notes when routing the boost, pressure, drain and control
lines:
•
Lines and hoses must be installed without any mechanical pre-tension to ensure
additional motor loads are not created during operation.
•
Ensure correct sealing materials are used appropriate for the fluid type and
operating conditions.
•
Pressure/boost line
– For the pressure/boost lines, use only pipes, hoses and connecting elements
rated for the operating pressure range specified in data sheet
•
Drain line
– The drain line should be routed to ensure that the motor’s case remains filled
with hydraulic fluid (reference chapter 7.3).
– The case pressure must not exceed the limit specified in the motor’s data sheet
under any operating conditions.
– The drain line connection to the reservoir must be below the minimum fluid level
under all conditions (see chapter 7.3 "Installation position" on page 29).
WARnInG!
Leaking or popped-out threaded plugs!
If a threaded plug of the incorrect standard or size is used there is a risk that under
pressure this may become ejected from the port resulting in serious injury and
damage to equipment.
▶
Use the installation drawing to determine the required threaded plug for each
fitting.
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Make certain that there are no mix-ups when installing fittings, mounting bolts
and threaded plugs.
▶
For all female threads, use a threaded plug from the same standard and of the
correct size.
