Danfoss PV15-549 Installation guide

A relief cut was added to the pump housing and charge pump housing in December, 2006. The

old versions without the relief cut are no longer available.

For proper operation, both the pump housing and the charge pump housing must be of the

same type – either both do not have the relief cut or both do have the relief cut.

Therefore, if one of the old housings is replaced in service, the other housing must also be

replaced. For example, if a charge pump housing is replaced with a new one that has the relief

cut, the pump housing must also be replaced.

Caution:

If a combination of old and new housings are used, the pump will fail within a very short time.

See Service Bulletin 2006-029 for further information.

The changes to the parts can be seen in the illustrations below:

New pump housingOld pump housing

Relief cut

New charge pump housing

Relief cut

Old charge pump housing

70018442 • Rev AB • September 2013

Service Kit Instructions

15 Series pump

Pump housing and charge pump housing relief cut