Service Manual
Hako GmbH
Technical Service (KUD) 23843 Bad Oldesloe
Edition: 05/2014
Confidential - For internal use only!
5.1 General
Hydraulic units are maintenance-free.
Maintenance reduces to oil and filter change in the sense of system cleaning.
Regular inspection and periodic maintenance precludes premature failure.
5.2 Brief Description of V/D Travel Drive
The machines with IC engines are equipped with hydrostatic travel drives which operate in closed systems.
Forward and reverse driving speed is continuously controllable by pedal, mechanically on the pump. Due to automatic return to
zero position, the machine is dynamically slowed down and self-retaining against unwanted rolling of the machine.
Should moving of the machine be necessary when engine stands still, open the bypass valve of the pump.
Pump pressure is assured by two pressure-limiting vales (bidirectional). They are set to 160bar (forward) and 130 bar (reverse).
