Gauge Port Locations And Gauge Installation - With Implement Pump - Danfoss DDC20 Service Manual

Service Manual
DDC20 Axial Piston Pumps
Pressure Measurements

Gauge Port Locations and Gauge Installation - with Implement Pump

© Danfoss | August 2017
The following drawing and table show the gauge port locations and gauge sizes needed.
M3 Charge Gauge/
E Implement Return
O-ring plug 9/16-18UNF
MA system pressure gage port
O-ring plug 9/16-18UNF-2B
S -Charge
suction port
MB system pressure gage port
O-ring plug 9/16-18UNF-2B
Port Information
Port Identifier Port Size
L1/L2/L3 3/4-16 UNF
MA/MB 9/16-18 UNF
S 7/8-14 UNF
D 9/16-18 UNF
M3/E 9/16-18 UNF
L1 Case Drain
O-ring Plug 3/4-16UNF-2B
L2 Case Drain Port
O-ring plug 3/4-16UNF-2B
DDC20 with Implement Pump
L3 Case Drain
O-ring Plug 3/4-16UNF-2B
Wrench Size
5/16 inch internal hex
11/16 hex wrench
N/A (plastic shipping plug)
1/4 inch internal hex
1/4 inch internal hex
A System Port
M3 Charge Pressure Gauge Port
E Implement Return
O-ring Plug 9/16-18UNF-2B
B System Port
D Implement Discharge
O-ring plug 9/16-18UNF-2B
Pressure Obtained Gauge Size, bar [psi]
Case Drain 10 [100]
System Pressure 500 [5000]
Charge Inlet 2 [30] Vacuum
Implement Pressure 100 [2000]
Charge Pressure 50 [1000]
L1120413 | AX00000135en-US0302 | 9
P108801