Maro MA Series User Manual (English)

Questions and Answers:

A
Ana ValenzuelaJul 29, 2025
What to do if Maro Water Pump cannot start?
- K
  Kayla DavisJul 29, 2025
  If your Maro Water Pump fails to start, several issues could be the cause. First, ensure the air is connected to the air inlet, not the exhaust. If that's correct, check for obstructions or shut-off valves in the discharge piping; clean the line or open the valve if needed. Other potential causes include a failed shaft seal (replace it), a ruptured diaphragm (replace the diaphragm), or a malfunctioning air valve system (check the carrier for movement and seals in the chest assembly, clean or replace if necessary).
L
Leon RyanAug 4, 2025
Why Maro Water Pump runs but has no discharge?
- P
  pamela29Aug 5, 2025
  If your Maro Water Pump is running but not discharging any fluid, there might be a suction line leakage, so check and repair it. Alternatively, the valve ball may not be seating correctly or is damaged; remove any obstructions and replace the balls or seats if needed. Also, the suction strainer or line could be clogged, so clear it. Finally, excessive suction lift could be the problem; shorten the suction line. A ruptured diaphragm may also cause this issue; replace it.
J
johnvalenciaAug 10, 2025
What to do if Maro Water Pump has erratic flow?
- V
  Virginia HarperAug 10, 2025
  If your Maro Water Pump is experiencing erratic flow, several factors could be responsible. A ruptured diaphragm on one side is a potential cause, so replace the diaphragm. Check for suction line leakage and repair it if necessary. A malfunctioning air valve system could also be the culprit; inspect the carrier for freedom of movement and all seals in the chest assembly, cleaning or replacing parts as needed. Other possible issues include a failed shaft seal (replace it) or a valve ball not seating correctly or damaged (remove any obstructions and replace the balls or seats).
E
Edwin MccarthyAug 16, 2025
Why Maro Water Pump has intermittent stroke rate?
- J
  Jason NavarroAug 16, 2025
  An intermittent stroke rate in your Maro Water Pump can be caused by several factors. A failed shaft seal may be the issue, so replace it. Alternatively, the air valve system might be malfunctioning; check the carrier for freedom of movement and all seals in the chest assembly, and clean or replace if necessary. Over-lubrication can also cause this, so clean the air valve system and shaft bushing. Lastly, a valve ball obstruction or a ball not sealing correctly could be the problem; remove any obstructions and replace the balls or seats.

Maro MA Series Specifications

General

Model	MA Series
Category	Water Pump
Maximum Suction	8m
Power Source	Electric
Power	0.5 HP
Voltage	220V
Frequency	50Hz
Maximum Head	Up to 50 m
Max Head	Up to 50 m
Inlet/Outlet	1"
Power Consumption	370W, 550W, 750W
Material	Cast Iron