Pressure Measurement; Required Tools; Port Locations And Gauge Installation - Danfoss 45 E Frame Series Service Manual

Service Manual
Series 45 E Frame Open Circuit Pumps

Pressure measurement

Required tools

Port locations and gauge installation

Gauge port locations
X
X
M4
S
B
M2
P104 052
18 | © Danfoss | September 2016
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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.
The illustration below shows gauge port locations. Recommended pressure gauges and fittings are in the
table.
Gauge and port information
Port Purpose
M1, M2 System pressure
M4 Servo pressure
L1, L2 Case drain
X1 LS signal
X
S & B
L1
M1
L2
Range of gauge
0-300 bar [0-5000 psi]
0-300 bar [0-5000 psi]
0-300 bar [0-5000 psi]
0-300 bar [0-5000 psi]
Legend
B = Main pressure line
S = Suction line
L1, L2 = Case drain lines
X = Load sensing pressure port
M1 = CW endcap system pressure gauge*
M2 = Gauge port for port B*
M4 = Gauge port — servo pressure
*Same pressure
Fitting
9/16 - 18 O-ring fitting
9/16 - 18 O-ring fitting
1-1/16 - 12 O-ring fitting
7/16 - 20 O-ring fitting (tee
into LS signal line)
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