Mechanical Installation And Maintenance; Start-Up Procedure; Fluid And Filter Recommendations - Danfoss DDP096 Service Manual

Service Manual
Digital Displacement® Pump DDP096

Mechanical installation and maintenance

Start-up procedure

Fluid and filter recommendations

8 | © Danfoss | April 2022
Follow the DDP096 commissioning procedure of the Technical Information manual when restarting an
installation in which the pump has been removed. The DPC12 controller should already be mounted
properly in the system.
Absolute cleanliness is required, and the pump must be installed in clean conditions. Any contamination
of the pump or hydraulic fluid can have a significant detrimental impact on the service life of the pump.
1. Make certain all system components (reservoir, hoses, valves, fittings, heat exchanger, etc.) are clean
prior to filling with fluid.
Do not use any cleaning materials that may deposit lint or other debris in the hydraulic system. Do
not use PTFE tapes to seal fittings.
2. Make certain that the case of the pump is fully filled with hydraulic fluid before being brought into
operation.
Use hydraulic fluid free of air and water. Excess bubbles or moisture can cause damage to the pump's
internal components.
3. Remove air from the pump - refer to the Air removal section of the Technical Information manual for
more information.
To ensure optimum life of the Digital Displacement
fluid and filter. Contaminated fluid is the main cause of unit failure. Take care to maintain fluid cleanliness
when servicing.
Check the reservoir daily for proper fluid level, the presence of water, and rancid fluid odor. Water in the
fluid may be noted by a cloudy or milky appearance or free water in the bottom of the reservoir. Rancid
odor indicates the fluid has been exposed to excessive heat. Change the fluid immediately if these
conditions occur. Correct the problem immediately.
Change the fluid and filter per the vehicle/machine manufacturer's recommendations or at the below
intervals. Change the fluid more frequently if it becomes contaminated with foreign matter (dirt, water,
grease, etc.) or if the fluid is subjected to temperature levels greater that the recommended maximum.
Dispose of used hydraulic fluid properly. Never reuse hydraulic fluid.
Change filters whenever the fluid is changed or when the filter indicator shows that it is necessary to
change the filter. Replace all fluid lost during filter change.
Fluid and filter change interval
Reservoir type
Sealed
Breather
® Pump DDP096, perform regular maintenance of the
Maximum change interval
2000 hours
500 hours
AX398964822217en-000101