TROUBLESHOOTING

Table 8. Pump Troubleshooting

SYMPTOM

POSSIBLE PROBLEM

SOLUTION

 

 

 

 

 

Check that proper voltage (230 VAC, 60 Hz, single-

 

Incorrect voltage/amps?

phase) is being supplied to the pump. Also 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 4.

 

 

 

 

Impeller worn?

Replace impeller.

 

 

 

Water in Mechanical

Defective mechanical seal?

Replace mechanical seal.

 

 

Seal Oil

Loose Oil Fill Plug?

Tighten securely. Apply teflon tape.

 

 

 

 

st3020b1/BCUL Sub. pump • operation and parts manual — rev. #2 (10/28/10) — page 27

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Multiquip st3020b1, st3020bcul manual Symptom, Solution
Page 26 Page 28

st3020bcul, st3020b1 specifications

The Multiquip ST3020B1 and ST3020BCUL are robust and efficient generators designed to meet the power needs of various applications. These models are particularly popular among contractors, events, and emergency services due to their reliability and high performance.

One of the main features of the ST3020B1 is its impressive power output. With a rated capacity of 30 kW, this generator is capable of powering a variety of tools and equipment simultaneously. The ST3020BCUL variant, while also maintaining similar power output, offers additional features that enhance usability and functionality. Both models are equipped with a durable frame and come with advanced noise-reduction technology, making them suitable for use in noise-sensitive environments.

The design of the ST3020B1 and ST3020BCUL emphasizes portability. Both models are fitted with heavy-duty wheels and ergonomic handles, allowing for easy maneuverability across job sites. Their compact design ensures that they occupy minimal space without compromising on performance.

In terms of technology, these generators are powered by a reliable engine that guarantees consistent performance. The advanced fuel consumption management system enhances efficiency, allowing longer operational periods before refueling. Additionally, the generators are designed with user-friendly control panels that provide clear indicators for oil levels, battery voltage, and running status, ensuring easy monitoring during operation.

Safety features are paramount in the design of the ST3020B1 and ST3020BCUL. Both models are equipped with Automatic Low Oil Shutdown systems, preventing engine damage and ensuring longevity. The overload protection mechanism safeguards against potential equipment damage by automatically shutting down the generator when necessary.

Moreover, the ST3020BCUL model goes a step further by integrating additional outputs, including multiple 120V and 240V outlets, catering to diverse power requirements. This versatility makes it ideal for both professional construction environments and recreational applications.

In summary, the Multiquip ST3020B1 and ST3020BCUL generators stand out for their powerful output, portability, user-friendly technology, and safety features. These characteristics make them an essential tool for anyone requiring reliable mobile energy solutions, contributing significantly to enhanced productivity and efficiency in various operational settings.
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