4. Install new outer O-ring (K008), backup ring (K009), and inner O-ring (K010) on each valve seat plug.
5. Verify that the conical springs are properly retained on the check poppets/relief valves (H005/J005).
Install the check poppet/relief valve assemblies into the pump housing. Ensure that the valve
assembly moves freely in its bore.
6. Using a 1 inch wrench or a 5/16 inch internal hex wrench, install the valve seat plugs or valve seat/
bypass plugs into the pump housing and torque to 70 N•m [52 lbf•ft].
Filtration adapters
Filter-related pump hardware
Filtration systems for Series 42 pump include full flow suction filtration, pressure filtration, and partial
flow pressure filtration. Danfoss provides a filtration adapter for each configuration. If filtration is
provided elsewhere in the hydraulic circuit, the pump may not have a filtration adapter.
Pumps housings without filtration adapters have an unused and plugged construction bore next to the
charge relief valve. When these pumps use suction filtration, the factory plugs external charge inlet.
Pump housings with filtration adapters have an appropriate adapter and gasket. The position of the M3
gauge port varries depending on filtration type.
Pumps manufactured after 1998 have filter adapter screws that are 10 mm [0.39 in] longer than the
screws used on pre-1998 pumps. The longer screws are only compatible with post-1998 pumps.
Housing with filtration adapter
To Next Page
Loading...
