Gauge Port Locations And Gauge Installation - With Geroter - Danfoss DDC20 Service Manual

Service Manual
DDC20 Axial Piston Pumps
Pressure Measurements

Gauge Port Locations and Gauge Installation - with Geroter

8 | © Danfoss | August 2017
The following drawing and table show the gauge port locations and gauge sizes needed.
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
M3 7/16-20 UNF
L1 Case Drain
M3 Charge Pressure Gauge Port
O-ring Plug 3/4-16UNF-2B
O-ring Plug 7/16-20UNF-2B
L3 Case Drain
O-ring Plug 3/4-16UNF-2B
Wrench Size Pressure Obtained
5/16 inch internal hex Case Drain
11/16 hex wrench System Pressure
N/A (plastic shipping plug) Charge Inlet
3/16 inch internal hex Charge Pressure
DDC20 with Gerotor
Gauge Size, bar [psi]
10 [100]
500 [5000]
2 [30] Vacuum
50 [1000]
L1120413 | AX00000135en-US0302
P109593