SeaLand Vacuum Pump - Manual (Page 7)

7
TROUBLESHOOTING
WARNING
Before attempting to open or service the pump:
1. If possible, flush pump with clean water and disinfectant.
2. Allow motor to cool if overheated.
3. Disconnect power supply to pump before servicing unit.
Follow proper lock-out/tag-out procedures.
1. Pump fails to prime.
2. Pump stops or has
reduced flow.
3. Excessive current draw
requires too much
power.
4. Excessive noise.
a. Correct leak.
b. Replace suction line.
c. Clean or replace valves (4 required).
d. Replace diaphragm.
e. Clean suction line.
f. Tighten bolts.
a. Correct leak.
b. Replace suction line.
c. Replace diaphragm.
d. Clean suction or discharge line.
e. Check installation and correct as
required.
f. Clean or replace valves (4 required).
a. Dilute if possible.
b. Clean or replace valves (2 required).
c. Check installation and correct as
required.
a. Tighten bolts.
b. Check oil level.
a. Air leak(s) in suction (inlet) line.
b. Suction (inlet) line collapsed.
c. Suction (inlet) or discharge (outlet)
check valves clogged or worn out.
d. Torn or broken diaphragm.
e. Suction line clogged.
f. Diaphragm or flange bolts loose.
a. Air in suction line.
b. Suction line collapsed.
c. Torn or broken diaphragm.
d. Clogged suction or discharge line.
e. Suction lift or discharge lift (head)
too high.
f. Suction or discharge valves in pump
clogged or defective.
a. Liquid solution too thick.
b. Discharge valves in pump clogged.
c. Excessive suction or discharge lifts
(head).
a. Pump, gear reducer or motor loose.
b. Gear reducer low on oil.
Problem Possible Cause Service instructions