Maintenance
108
MTS Landmark™ Tabletop Load Units - Product Information
Item Description
1
Degrees Celsius
2
current pressure = original pressure x
3
273 + (current temperature)
4
273 + (original temperature)
5
Degrees Fahrenheit
6
current pressure = original pressure x
7
460 + (current temperature)
8
460 + (original temperature)
111 Accumulator Temperature
Conversion
l
If a pressure line accumulator has a pressure level change of ±1.4 MPa (200 psi) between
checks, the accumulator requires maintenance or the time interval between checks needs to
be shortened.
l
If a return line accumulator has a change of ±50% of the original pressure level between
checks, the accumulator requires maintenance or the time interval between checks needs to
be shortened.
l
If the precharge pressure level increases at each check interval, this indicates that fluid is
collecting on the gas side (a small amount of fluid leakage is normal). When the precharge
pressure level cannot be maintained within the limits, remove the fluid and charge the
accumulator. If the levels are again exceeded at the first check interval, replace the piston
seals after the initial fluid has been changed.
l
If the precharge pressure level decreases at each check interval, this indicates gas leakage to
the fluid side. When the precharge pressure level cannot be maintained within the limits stated
in the previous guidelines, replace the accumulator piston seals.
l
During normal operation, the accumulator piston should be near the center of the accumulator
