DDC20/24 gauge port locations and sizes- with Gerotor
The following drawing and table show the gauge port locations and gauge sizes needed.
DDC20/24 with gerotor
S -Charge
suction port
MA system pressure gage port
O-ring plug 9/16-18UNF-2B
L3 Case Drain
O-ring Plug 3/4-16UNF-2B
M3 Charge Pressure Gauge Port
O-ring Plug 7/16-20UNF-2B
L1 Case Drain
O-ring Plug 3/4-16UNF-2B
MB system pressure gage port
O-ring plug 9/16-18UNF-2B
Port Information
Port Identifier
Port Size
Wrench Size
Pressure Obtained
Gauge Size, bar [psi]
L1/L2/L3
3/4-16 UNF
5/16 inch internal hex
Case Drain
10 [100]
MA/MB
9/16-18 UNF
11/16 hex wrench
System Pressure
500 [5000]
S
7/8-14 UNF
N/A (plastic shipping plug)
Charge Inlet
2 [30] Vacuum
M3
7/16-20 UNF
3/16 inch internal hex
Charge Pressure
50 [1000]
Service Manual
DDC20/24 Axial Piston Pumps
Gauge port locations and installation
©
Danfoss | August 2019
L1120413 | AX00000135en-000401 | 7
