Hydraulic Parameters; Inlet Pressure; Pressure Compensator Valve Setting; Case Pressure - Danfoss 45 Frame K2 Series Service Manual

Service Manual
Series 45 Frame K2 Open Circuit Axial Piston Pumps
Technical specifications

Hydraulic parameters

*
As measured at the hottest point in the system, e.g. drain line.
© Danfoss | April 2017

Inlet pressure

Minimum pressure, continuous = 0.8 bar absolute [23.2 in Hg]
Minimum pressure, cold start = 0.5 bar absolute [14.8 in Hg] (at reduced maximum pump speed)

Pressure compensator valve setting

Minimum: 100 bar [1450 psi]
Maximum: 260 bar [3770 psi]

Case pressure

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

Hydraulic fluid

Refer to Danfoss publication Fluids and Filtration BLN-9887 or 520L0463. For information on biodegradable
fluids refer to Biodegradable Hydraulic Fluids 520L0465. See
recommended fluid and filter change intervals.

Temperature range

Intermittent (cold start): - 40° C [- 40° F]
Continuous: 104°C [219°F]
*
Maximum : 115°C [239°F]
Hydraulic fluid viscosity must be maintained within the prescribed limits.

Fluid viscosity

Viscosity limits
Rating
ν continuous
ν intermittent

Filtration

Required cleanliness level: ISO 4406 Class 18/13 or better. Refer to Danfoss publications Fluids and
Filtration BLN-9887 or 520L0463 and Design Guidelines for Selecting and Maintaining the Required Hydraulic
Fluid Cleanliness 520L0465. See
intervals.
Fluid and filter maintenance
minimum
maximum
minimum
maximum (cold start)
Fluid and filter maintenance for recommended fluid and filter change
for
mm2/s (cSt) [SUS]
9 [58]
110 [500]
6.4 [47]
1000 [4700]
AX00000301en-US0101 | 9