![Boumatic Pulse MD 9e1072 Installation And Operation Instructions Manual Download Page 35](http://html1.mh-extra.com/html/boumatic/pulse-md-9e1072/pulse-md-9e1072_installation-and-operation-instructions-manual_2796613035.webp)
Page 35
9e1072
6.3 ERROR CODE C - VACUUM TOO HIGH
This error occurs if the Pulse MD measures vacuum pressure above allowed parameters. This error is most often caused by
an issue with the vacuum pump regulator. The limit associated with this alarm is High Vacuum Max (see
Section 5.3.2.3)
Trouble-shooting: Malfunctioning Vacuum Pump Regulator
• Check the vacuum pump regulator. Is it malfunctioning? Are the regulator’s or the Pulse MD’s vacuum thresh-
olds miscalibrated? Make any necessary adjustments, repairs or replacements. Resume operation and check
whether the issue is resolved.
6.4 ERROR CODE D - PULSATION PHASE A OR PHASE C TOO SHORT
This error occurs if the pulsator takes too short of a time to get up to the expected vacuum pressure. This can result in an inef-
fective pulsation cycle for milking. The most common causes of this issue are a cow stepping on the hose or an obstruction
somewhere in the hose. The limit associated with this alarm is Phase A Minumum and Phase C Minimum (see
Section 5.3.2.2
).
Trouble-shooting: Cow stepping on hose
• When this error only appears for a short time, it is most likely that a cow has stepped on a hose and no serious
harm has been done. If you see a pattern of cows stepping on hoses, consider shortening or repositioning the
hoses that are getting in the way.
Trouble-shooting: Hose obstruction
• Check the length of hose between the Pulse MD unit and the stall. If there are any hose obstructions, clear
them. Resume operation and check whether the issue is resolved.
6.5 ERROR CODE E - PULSATION PHASE A OR PHASE C TOO LONG
This error occurs when the pulsator takes too long to get up to the desired vacuum pressure. This can result in an inef-
fective pulsation cycle for milking. It is most often caused by issues with the pulsator either being dirty or sticking. The
limit associated with this alarm is Phase A Maximum and Phase C Maximum (see
Section 5.3.2.2
).
Disassemble and clean the pulsator. Resume operation and check whether the issue is resolved. If the error still appears,
a piston may be magnetized or may be sticking for another reason. Replace the pistons or the pulsator unit. Resume
operation and check whether the issue is resolved.
6.6 ERROR CODE F - VACUUM WON’T RETURN TO ATMOSPHERIC PRESSURE
This error occurs when the vacuum pressure does not return to atmospheric pressure levels in pulsation phase D. Like the
previous errors, this issue interferes with the tempo of pulsation and causes inefficient milking. This problem most often
occurs when an air barrier is broken within the system, exposing the pulsation system to another source of vacuum. The
most common points of failure are the milking liners and gaskets within the pulsator. The limit associated with this alarm
is Low Vacuum Max (see
Section 5.3.2.3)
Trouble-shooting: Broken Liner
• Check for holes in the stall’s liners. Replace any liners that have broken. Resume operation and check whether
the issue is resolved.
Trouble-shooting: Broken or worn Pulsator Gasket
• Disassemble the pulsator and check the gaskets around the pistons for faults. Replace any worn or broken
gaskets. Resume operation and check whether the issue is resolved.