Bypass Function - Danfoss LDU24 Service Manual

Service Manual
LDU20/24 Closed Circuit Axial Piston Transmission
Operation

Bypass Function

10 | © Danfoss | June 2021
The LDU20/24 contains a dedicated bypass valve option. The bypass function is activated when the
bypass valve is mechanically backed out 3 full turns (maximum). The bypass function allows a machine or
load to be moved without rotating the pump shaft or prime mover.
For example; an inoperable vehicle may need to be moved to the service or the repair location, or
winched onto a trailer without operating the prime mover.
C
Caution
Excessive speed or extended movement will damage the transmission.
Avoid excessive speeds and extended load/vehicle movement. Do not move the load or vehicle more
than 20 % of maximum speed or for longer than 3 minutes. When the bypass function is no longer
needed, reseat the bypass valve to the normal operating position.
Bypass Function
System Pressure
System Pressure
Bypass Valve
P400006
AX152886481311en-000304