Hydraulic Parameters; Inlet Pressure; Pressure Compensator Valve Setting; Case Pressure - Danfoss 45 J Series Service Manual

Service Manual
Technical specifications

Hydraulic Parameters

10
Series 45 J Frame Open Circuit Axial Piston Pumps

Inlet pressure

Minimum pressure, continuous = 0.8 bar absolute [6.7 inches Hg vac.]
(at reduced maximum pump speed)
Minimum pressure, cold start = 0.5 bar absolute [15.1 inches Hg vac.]

Pressure compensator valve setting

Minimum: 100 bar [1450 psi]
Maximum: 310 bar [3770 psi] (depending on displacement)
For more information, refer to
520L0676.

Case pressure

Maximum continuous: 0.5 bar [7 psi] Above inlet
Intermittent: 2 bar [29 psi] Cold start

Hydraulic fluid

Refer to Danfoss publication
biodegradable fluids refer to
page 17 for recommended fluid and filter change intervals.
maintenance,
Temperature range
1
Intermittent (cold start):
Continuous:
Maximum :
2

Fluid viscosity

Viscosity limits
Rating
minimum
ν continuous
maximum
minimum
ν intermittent
maximum
(cold start)

Filtration

Required cleanliness level: ISO 4406 Class 18/13 or better. Refer to Danfoss publications
BLN-9887 or 520L0463 and
Filtration
520L0465. See
Hydraulic Fluid Cleanliness
and filter change intervals.
Hydraulic fluid viscosity must be maintained within the prescribed limits.
1
As measured at the hottest point in the system, e.g. drain line.
2
520L0607 • Rev AI • Sep 2013
Series 45 J Frame Axial Piston Open Circuit Pumps Technical
BLN-9887 or 520L0463. For information on
Fluids and Filtration
Fluids, 520L0465. See
Biodegradable Hydraulic
- 40° C [- 40° F]
82° C [180° F]
104° C [220° F]
mm /s (cSt)
2
[SUS]
9 [58]
110 [500]
6.4 [47]
1000 [4700]
Design Guidelines for Selecting and Maintaining the Required
maintenance, page 17 for recommended fluid
Fluid and filter
Information,
Fluid and filter
Fluids and