This section offers instruction on inspection and adjustment of pump components. Read through the
entire topic before beginning a service activity.
Refer to Pressure Measurements on page 31 for location of gauge ports and suggested gauge size.
Standard Procedures
1. Ensure the surrounding area is clean and free of contaminants like dirt and grime.
2. With the prime mover off, thoroughly clean the outside of the pump.
3. Tag each hydraulic line, if removing the pump.
4. When you disconnect hydraulic lines, cap them and plug each open port to prevent contamination.
5. Inspect the system for contamination.
6. Check the hydraulic fluid for signs of contamination: oil discoloration, foam in the oil, sludge, or metal
particles.
7. If there are signs of contamination in the hydraulic fluid, replace all filters and drain the hydraulic
system.
8. Flush the lines and refill the reservoir with the correct filtered hydraulic fluid.
9. Before re-installing the pump, test for leaks.
Service Manual
H1T 045/053, 060/068 Axial Piston Tandem Pumps
Adjustments
©
Danfoss | September 2020 AX152886481761en-000405 | 39
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