Basic Design
LDU20/24 is a U-style HST transmission, including a closed circuit variable displacement piston pump
with DDC (Direct displacement control) and a fixed motor. LDU20/24 is specially designed with optimized
performance, size, and cost, in order to fulfill the demand of the mobile applications marketplace. This
document provides the detailed specifications and features for LDU20/24.
Key Features
•
Easy to use design as Complete Hydrostatic Transmission package for Turf care machine & Compact
Utility Tractor of up to 26kw[35PS]
•
Compact design
•
U-style layout in One housing with Z-shaft configuration
•
Available external charge
•
Bypass valve for the pulling of the vehicle
•
Same shaft center distance as BDU21 85mm…Between pump and motor shaft
•
Same drive line design is available between BDU21 and LDU20/24
•
Best in class Efficiency by Female Piston & Male slipper design…Can reach approximately 80% overall
efficiency
•
Longer life kit, Higher Duty capability in most compact design in this class of HST
•
Low operating force
•
Serviced by a Worldwide Network of Danfoss
Typical Applications
•
Compact utility tractor
•
Turf care
•
Small agricultural machinery
Schematic Diagram
MA1
MB1
MA2
MB2
L1
L2
L3
S
M3
P400004
Service Manual
LDU20/24 Closed Circuit Axial Piston Transmission
General Description
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©
Danfoss | June 2021
AX152886481311en-000304
