troubleshooting

 

 

 

 

 

 

 

Table 9. Pump Troubleshooting

 

 

 

SYMPTOM

POSSIBLE PROBLEM

SOLUTION

 

 

 

 

 

Check that the proper voltage, 230 or 460 VAC, 60

 

 

Hz, 3-phase is being supplied to the pump. Also

 

Incorrect voltage/amps?

check that there is an adequate amount of current

 

 

(amps) to run the pump. Check power source circuit

 

 

breaker.

 

 

 

 

Check electrical connec-

If using float switches check wiring, inspect power

 

tions?

cord.

 

 

 

 

Blown power fuse or tripped

Replace fuse check circuit breaker, check cause of

Pump Fails To Start

circuit breaker?

blown fuse or tripped breaker.

 

 

 

Impeller locked?

Disconnect power cord and check for clogging. Un-

 

clog pump. Check overload protection device.

 

 

 

 

 

 

 

Use multimeter to check motor insulation. Insulation

 

Wet motor windings?

resistance must be approximately 15 megaohms. If

 

resistance is low, disassemble pump motor and bake

 

 

 

 

windings to dry them.

 

 

 

 

Defective motor and pump

Check for excessive bearing wear, if worn replace

 

bearings?

bearings. Replace motor if defective.

 

 

 

 

Twisted or restricted dis-

Lay hose flat un-kinked. Remove clog from hose line.

 

charge hose?

 

 

 

 

 

 

Clogged pump strainer?

Clean strainer.

 

 

 

Pump Fails to Deliver Full

 

Use a voltmeter to check voltage while pump is

Output

 

energized. Voltage must be within ±10%. Check

 

Low voltage?

power source (no load and load). If an extension cord

 

 

is used, make sure it has adequate current-carrying

 

 

capacity for the required length.See Table 5.

 

 

 

 

Impeller worn?

Replace impeller.

 

 

 

Water in Mechanical

Defective mechanical seal?

Replace mechanical seal.

 

 

Seal Oil

Loose Oil Fill Plug?

Tighten securely. Apply teflon tape.

 

 

 

 

st4/ST6 series submersible pumps• operation AND PARTS manual — rev. #1 (11/12/13) — page 25

Page 24 Page 26
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Multiquip ST41460, ST61460, ST61230, ST41230 manual Pump Troubleshooting
Page 24 Page 26

ST61230, ST61460, ST41230, ST41460 specifications

The Multiquip ST41460, ST41230, ST61460, and ST61230 are a series of portable generators designed to meet the power needs of various applications, from construction sites to outdoor events. These generators combine robust performance with user-friendly features, enabling operators to rely on them for consistent power delivery.

Starting with the ST41460, this generator provides a maximum output of 4,600 watts, making it an ideal choice for users requiring significant power. It is equipped with a powerful Honda engine known for its fuel efficiency and durability. The dual fuel capability allows the ST41460 to run on either gasoline or propane, providing flexibility in fuel choice depending on availability or preference. Additionally, the unit features a compact design, making it easy to transport and store.

The ST41230 is optimized for those who need a lighter and more portable option without sacrificing performance. With a maximum output of 3,000 watts, it is perfect for powering tools, lights, and small appliances. This generator also offers a quiet operation, making it suitable for residential areas or events where noise reduction is a priority. The ST41230 further includes a digital panel that displays fuel level and run time, enhancing usability and monitoring.

Moving to the ST61460, this model takes power output up a notch with 6,000 watts peak capacity. Its heavy-duty construction ensures reliability on job sites, while the full-length skid base offers added stability and protection. This unit is also equipped with advanced inverter technology, providing clean and stable power perfect for sensitive electronics.

Lastly, the ST61230 features a balance of power and portability, with a maximum output of 3,000 watts that caters well to users in need of moderate power for tools and recreational use. The incorporation of safety features such as low-oil shutdown and circuit breaker ensures that the generator operates safely and reduces the risk of damage to connected devices.

Each of these Multiquip generators boasts user-friendly features, including easy-start systems, multiple outlet options, and rugged wheels for enhanced mobility. With their reliable performance, advanced technologies, and robust construction, the ST41460, ST41230, ST61460, and ST61230 models are ideal solutions for anyone seeking dependable power in various settings. Whether for construction, home use, or recreational activities, these generators provide reliable support for all power needs.
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