Required tools
The service procedures described in this manual can be performed using common mechanic's hand
tools. Special tools, if required are shown. Calibrate pressure gauges frequently to ensure accuracy. Use
snubbers to protect gauges.
Port locations and gauge installation
For economical reasons, the cartridge motor does not contain any designated gauge installation ports.
All pressure measurements can be obtained by installing tee fittings to the connections at the locations
listed in the table / drawing below. Recommended gauge sizes are also listed.
Port information
Port identifier
Size
Pressure obtained
Gauge size, bar [psi]
X1
[0.5625]-18 UNF-2B
Control signal
600 [10 000]
Case drain port
[0.750]-16 PER SAE
Case drain
10 [100]
A
[1.0625]-12 PER SAE
System pressure
600 [10 000]
B
[1.0625]-12 PER SAE
System pressure
600 [10 000]
Brake release port
[0.4375]-20 PER SAE
N/A
N/A
Twin radial port locations
System port (B)
System port (A)
Case drain port
Brake release port
Control port (X1)
P104 249E
Service Manual
K and L Frame Variable Motors, Cartridge Mount
Pressure measurements
©
Danfoss | July 2017
520L0631 | AX00000042en-US0402 | 11
