Port locations and gauge installation - 045/053
The following table and drawings show the port locations and gauge sizes needed. When testing system
pressures, calibrate pressure gauges frequently to ensure accuracy. Use snubbers to protect gauges.
Port information
Port identifier Port size Wrench size Reading Gauge size, bar [psi]
L1, L2, L3 1 1/16-12 UNF 2B 9/16 internal hex Case drain 10 bar [100 psi]
MA, MB, MC, MD 9/16-18 UNF 1/4 internal hex System pressure 600 bar [10,000 psi]
M3 9/16-18 UNF 2B 1/4 internal hex Charge pressure 50 bar [1000 psi]
M4, M5 7/16-20 UNF 2B 3/16 internal hex Servo pressure 50 bar [1000 psi]
AM3 9/16-18 UNF 2B 1/4 internal hex Alternate Charge pressure 50 bar [1000 psi]
A, B, C, D 1 5/16-12 - System ports -
E 7/8-14 - Charge filtration -
M14 7/16-20 1/4 internal hex Case gauge port 10 bar [100 psi]
Port locations
P109117
C
D
A
B
M4
E
M5
L3
MD
MA
L1
MCMB
AM3
M3
M4
M5
L2
M3
M14
M14
Service Manual
H1T 045/053, 060/068 Axial Piston Tandem Pumps
Pressure Measurements
©
Danfoss | September 2020 AX152886481761en-000405 | 31
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