Service Manual
Series 45 J Frame Open Circuit Axial Piston Pumps
520L0607
• Rev AI • Sep 2013
15
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 port locations
Pressure measurement
Required Tools
Port Locations and Gauge
Installation
Gauge and port information
Port
Purpose
Range of gauge
Fitting
M1
System pressure
0-300 bar [0-5000 psi]
9/16 - 18 O-ring fitting
L1, L2
Case drain port
0-10 bar [0-100 psi]
7/8 - 14 O-ring fitting
X
LS signal
0-300 bar [0-5000 psi]
7/16 - 20 O-ring fitting
(tee into LS signal line)
x
M1
L1
L2
P104 364