Technical Specifications; General Specifications; Physical Properties; Operating Parameters - Danfoss LDT 21 Service Manual

Service Manual
LDT 21/24/32 Closed Circuit Axial Piston Transmission

Technical Specifications

General Specifications

Features
Design
Direction of Rotation
Pipe Connections
Recommended Installation Position
LDT physical properties
Features
Displacement Pump side
Motor side
Mass moment of inertia Pump side
of rotating components
Motor side
Weight (dry)
Oil volume Case only
With passage
Installation
Rotation
Ports (ISO 11926-1)
Input shafts and PTO shafts
Output shaft
Control type
LDT Operating Parameters
Features
Input speed Minimum
Rated
Maximum
Output speed Minimum
Rated
Maximum
System pressure Maximum working
pressure
Maximum pressure
Input power Maximum
Charge pressure Minimum
Case pressure Rated
Maximum
14 | © Danfoss | June 2022
Description
U-style HST with variable displacement piston pump and fixed motor
Clockwise / Counterclockwise
Main Pressure ports: SAE O-Ring Boss
Discretionary: The housing must be filled with hydraulic fluid
Units LDT21
3 3
cm /rev [in /rev] 0-21 [0-1.28]
21 [1.28]
2 2
kg•m [slug•ft ] 0.000878 [0.000648]
0.000693 [0.000512]
kg [lb] 11.2 [24.7]
liter [US gal] 0.9 [0.24]
1.0 [0.26]
See
Clockwise
See
Units LDT21
-1
min (rpm) 500
3600
3800
-1
min (rpm) 500
3600
3800
bar [psi] 250 [3626]
280 [4061]
kw [hp] 22 [30]
bar [psi] 5 [73]
bar [psi] 1 [14.5]
3 [43.5]
LDT24 LDT32
0-24 [0-1.46] 0-31.5 [0-1.92]
24 [1.46] 31.5 [1.92]
0.000869 [0.000641] 0.001400 [0.001033]
0.000860 [0.000634] 0.001370 [0.001011]
14.0 [30.9] 21.0 [46.3]
1.1 [0.29] 1.4 [0.38]
1.2 [0.31] 1.5 [0.41]
Clockwise Clockwise
LDT24 LDT32
500 500
3400 3200
3800 3400
500 500
3400 3200
3800 3400
300 [4350] 300 [4350]
345 [500] 345 [500]
26 [35] 29.8 [40]
5 [73] 5 [73]
1 [14.5] 1 [14.5]
3 [43.5] 3 [43.5]
AX417167456877en-000101