Fluid and filter recommendations
•
Perform regular maintenance of the fluid and filter to ensure optimum life. Take care to maintain fluid
cleanliness when servicing.
•
Check the reservoir daily for proper fluid level, the presence of water, and rancid fluid odor. Fluid
contaminated by water may appear cloudy or milky or free water may settle in the bottom of the
reservoir. Rancid odor indicates the fluid has been exposed to excessive heat.
•
Inspect vehicle for leaks daily.
•
Change the fluid and correct the problem immediately.Contaminated fluid is the main cause of unit
failure. We recommend first fluid change at 500 hours.
Change the fluid and filter per the vehicle/machine manufacturer’s recommendations or at intervals
shown in the table:
Fluid and filter change interval
Reservoir type
Max oil change interval
Sealed
2000 hours
Breather
500 hours
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 than the recommended maximum.
Dispose of used hydraulic fluid properly. Never reuse hydraulic fluid. Change filters with the fluid or when
the filter indicator shows it’s necessary. Replace all fluid lost during filter change.
Tip
For detailed filtration information, see Danfoss publication
Hydraulic Fluids and Lubricants,
520L0463.
For more information on biodegradable fluids see Danfoss publication
Experience with Biodegradable
Hydraulic Fluids,
520L0465.
W
Warning
Hydraulic fluid contains hazardous material. Avoid contact with hydraulic fluid.
Always dispose of used hydraulic fluid according to state and federal environmental regulations.
Port Locations and Gauge Installation
The following table and drawings show the port locations and gauge sizes needed. When testing system
pressures, calibrate pressure gauges frequently to ensure accuracy. Use snubbers to protect gauges.
Ports description - TMM without HPRV
Identifier
Description
Size
Wrench size
Gauge size, bar [psi]
L1, L2
Case drain port
M22x1.5
10 mm internal hex
10 [100]
M1, M2
System A/B gauge ports
M12x1.5
6 mm internal hex
50 [1000]
M3
Flushing gage port
Optional ports description - TMM with HPRV
Identifier
Description
Size
Wrench size
Gauge size,
bar [psi]
L1, L2
Case drain port
7/8-14 UNF-2B
3/8” internal hex
10 [100]
Service Manual
TMM Transit Mixer Axial Piston Motor, Size 070/084/089
Fluid and Filter Maintenance
16
L1211037 • Rev AC • Apr 2014
