Disassembly, Reassembly, Trouble Shooting, Symptom

Disassembly

	WARNING	FAILURE TO DISCONNECT
	WARNING	ELECTRICAL POWER BEFORE
		ELECTRICAL POWER BEFORE
		ATTEMPTING ANY MAINTENANCE
		CAN CAUSE SHOCK, BURNS OR
		DEATH.

Hazardous voltage can shock, burn or cause death.

1.Remove foot bolt (10).

2.Remove casing bolts (12).

3.Remove back pull-out assembly from casing (2).

4.Remove diffuser seal ring (3) and diaphragm (4).

5.Remove diffuser screws (5) from adapter (11).

6.Remove motor end plug or cover.

7.Restrain motor shaft from rotation by utilization of the screwdriver slot, or 7⁄16" shaft flats, accessible at the motor shaft end.

8.Remove impeller (7), turning COUNTER-

CLOCKWISE.

9.Using two screwdrivers, pry off rotary section of mechanical seal (8). Discard. See Figure 2.

10.Remove motor adapter bolts (12) and remove motor adapter from motor.

11.Push stationary seat of mechanical seal out of motor adapter. Discard seal seat.

Figure 2

Reassembly

•Clean and inspect all parts before reassembly.

1.Inspect seal seat bore for wear and debris, clean and replace as necessary.

NOTICE: MECHANICAL SEAL MUST BE REPLACED WHENEVER SEAL HAS BEEN REMOVED. FOLLOW SEAL MANUFACTURER’S INSTRUCTIONS CAREFULLY.

2.If necessary, seat ring may be lubricated with water or glycerin to aid in installation. DO NOT contaminate the seal face. Fully and squarely install the stationary seat into the adapter. With a clean, lint free cloth, CAREFULLY wipe the seat face clean of debris. DO NOT damage the seal seat face.

3.Reinstall the motor adapter on the motor, making sure that the motor shaft does not dislocate or damage the stationary seal seat.

4.Fully and squarely install the seal rotary assembly against the stationary seat. Be sure rotating seal face does not drop out of holding collar and DO NOT damage seal face.

5.On three phase units, impeller MUST be installed with LOCTITE® “Purple”. Hold shaft from rotating, as explained in the “DISASSEMBLY” section of the manual, and install impeller by turning CLOCKWISE until tight against motor shaft shoulder.

6.Replace diffuser. Align to prevent impeller rub.

7.Install new diaphragm and new diffuser seal ring.

8.Install motor and liquid end into casing.

9.Check impeller for binding by rotating the motor shaft. If binding occurs, loosen casing bolts, readjust diffuser until impeller hub turns freely. Retighten casing bolts in a crossing pattern.

10.Replace all drain plugs and motor end components.

11.Reprime and operate according to instructions in the

“OPERATION” section of this manual.

Trouble Shooting

	WARNING	FAILURE TO DISCONNECT
	WARNING	ELECTRICAL POWER BEFORE
		ELECTRICAL POWER BEFORE
		ATTEMPTING ANY MAINTENANCE
		CAN CAUSE SHOCK, BURNS OR
		DEATH.

Hazardous voltage can shock, burn or cause death.

SYMPTOM

Motor Not Running:

See Probable Causes 1 through 5.

Little or No Water Delivered:

See Probable Causes 3, 4, 6 through 12, 15.

Excessive Noise and Vibration:

See Probable Causes 3, 6, 7, 10, 12, 13, 14.

PROBABLE CAUSES

1.Motor thermal protector tripped.

2.Open circuit breaker or blown fuse.

3.Impeller binding.

4.Motor improperly wired.

5.Defective motor.

6.Pump is not primed, air or gases in pumpage.

7.Discharge, suction plugged or valve closed.

8.Incorrect rotation. (3 phase only)

9.Low voltage or phase loss.

10.Impeller worn or plugged.

11.System head too high.

12.NPSHA too low – excessive suction lift or loss.

13.Discharge head too low – excessive flow rates.

14.Pump, motor or piping loose.

15.End of suction piping not submerged.

GT07, GT15, GT10, GT20, GT30 specifications

The ITT GT series, comprising models GT30, GT20, GT10, GT15, and GT07, is renowned for its advanced engineering and superior performance in the realm of industrial and commercial applications. Each model in the GT series represents a unique blend of technology and design aimed at meeting diverse operational requirements.

The ITT GT30 is one of the flagship models of the series, recognized for its robust performance and reliability. It features a high-capacity design, capable of delivering significant power while maintaining energy efficiency. Key technologies integrated into the GT30 include advanced cooling systems and precision engineering of components, which help minimize wear and tear, thus extending the lifespan of the unit.

The GT20 model stands as a versatile option, striking a balance between power and compact design. With its flexible configuration and modular design, the GT20 can adapt to various settings, making it ideal for applications where space is a constraint. The inclusion of smart technology allows for real-time monitoring, ensuring optimal performance and minimal downtime.

The GT10 model is tailored for those who prioritize efficiency without compromising on output. This model emphasizes energy-saving features, thus making it an excellent choice for eco-conscious businesses. The GT10 is equipped with state-of-the-art power management systems that optimize energy use while delivering consistent performance across multiple applications.

The GT15 combines the strengths of both the GT20 and GT10, offering a balanced solution for mid-range applications. Its design focuses on ease of installation and maintenance, which operators will find advantageous as it reduces operational disruptions. The GT15 also supports advanced connectivity options, providing users with greater control and oversight.

Lastly, the GT07 serves as the entry-level model in the ITT GT series. Despite its smaller size, the GT07 does not compromise on performance. It is engineered for user-friendly operation and reliability, making it suitable for smaller operations or as a supplemental unit in larger systems. The advancements in digital technology embedded within the GT07 ensure that it meets modern standards for performance and safety.

Overall, the ITT GT series epitomizes innovation and quality, with each model designed to cater to specific needs in an ever-evolving industrial landscape. Whether it’s for heavy-duty applications or more compact needs, the GT series delivers an impressive array of features and specifications that underline ITT's commitment to excellence in engineering.

ITT GT07, GT10, GT30, GT15, GT20 Disassembly, Reassembly, Trouble Shooting, Symptom, Probable Causes

Models: GT07 GT15 GT10 GT20 GT30