Table of Contents
4 Delivery contents
Included in the delivery contents are:
• Hägglunds DOb as per order confirmation
5 About this product
5.1 Product description
The DOb unit provides a hydraulic motor with required hydraulic oil flow and power
together with system control functionality and is assembled in a compact cabinet.
The DOb unit has an open loop hydraulic system and gives possibility to get control
functionality of torque (pressure) or speed of the hydraulic motor shaft. The unit has
a fixed hydraulic pump and a speed controlled electrical motor to drive the pump.
DOb is equipped with an air cooler for the hydraulic oil, the fan of the cooler is
speed controlled to minimize the sound level.
The unit has a maximum power of 7.5 kW, maximum flow of 30 lpm and maximum
working pressure of 315 bar. (The max flow and max pressure cannot be achieved
simultaneous)
The control cabinet contains two VFD units (Variable Frequency Drive) for speed
control of main pump and cooler electric motors, health monitoring of the drive unit
system and system status indication. The flow from the unit can be controlled locally
from the cabinet front or via remote connections to terminals inside the cabinet.
This installation and maintenance manual is intended to cover default setup of the
system.
5.2 Product identification
1 Type code
2 Serial number
3 Weight
4 Manufacturer
5 Max pressure
Fig. 1: Product identification
Hägglunds DOb, RE 15327-WA/05.2017, Installation and maintenance manual, Bosch Rexroth AB
1
2
3
Delivery contents
15/80
4
5
DD00057560
Table of Contents
