Zhejiang Toman Intelligent Technology Co., Ltd

Zhejiang Toman Intelligent Technology Co., Ltd

Hobbing Machine Common Faults "Self-Inspection Form": No Need to Wait for After-sales, Fix It Yourself

2026 03/13

In the process of mechanical processing and production, the hobbing machine, as the core equipment for gear processing, its stable operation is directly related to production efficiency and product precision. In daily operation, it is inevitable that the hobbing machine will have various small faults. If you wait for after-sales personnel to come to the door every time, it will not only delay the production progress but also increase the maintenance cost. To help our customers efficiently solve common faults of hobbing machines and reduce production losses, our company has specially sorted out this "Hobbing Machine Common Faults Self-Inspection Form", covering the most common fault phenomena, troubleshooting steps and solutions. Operators do not need professional maintenance experience, and can quickly locate problems and complete simple maintenance by referring to the form, truly realizing "no need to wait for after-sales, fix it yourself".

 

 

 

 

The self-inspection form compiled this time is based on our company's years of experience in hobbing machine production, commissioning and after-sales maintenance, focusing on the most frequently reported fault types by customers, such as gear machining accuracy deviation, machine tool abnormal noise, feed jamming, lubrication system abnormality, etc. Each fault is clearly marked with "fault phenomenon - possible causes - troubleshooting steps - solutions", with clear logic and concise steps, taking into account both professionalism and practicality. Whether it is a new operator or a senior technician, they can quickly get started, easily troubleshoot common small faults, minimize downtime, and ensure production continuity.

 

 

 

 

At the same time, our company reminds all customers that if they encounter complex faults not covered in the self-inspection form, or if the problem is still not solved after self-inspection, they can contact our after-sales team at any time. We will arrange professional and technical personnel to provide remote guidance or on-site maintenance, and make every effort to escort your production. In the future, our company will continue to sort out various equipment operation and maintenance skills, provide customers with more comprehensive and convenient services, and help customers improve production efficiency and reduce operating costs.

 

 

 

 

The core content of the hobbing machine common fault self-inspection form is as follows. The detailed and complete version can be obtained by contacting our customer service.

 

Fault Phenomenon

Possible Causes

Troubleshooting Steps

Solutions

Gear machining accuracy deviation, rough tooth surface

1. Tool wear or installation deviation; 2. Worktable runout; 3. Unreasonable feed rate; 4. Increased friction due to insufficient lubrication

1. Check tool wear and installation angle; 2. Detect whether the worktable runout is within the standard range; 3. Verify the feed rate parameter setting; 4. Check the oil level of the lubrication system and whether the oil circuit is unobstructed

1. Replace worn tools and readjust the tool installation angle; 2. Calibrate the worktable and fasten loose parts; 3. Adjust the feed rate to a reasonable range; 4. Add lubricating oil and unblock the oil circuit

Abnormal noise and vibration during machine operation

1. Excessive or insufficient gear meshing clearance; 2. Bearing wear and looseness; 3. Loose anchor bolts; 4. Abnormal motor operation

1. Check the gear meshing condition and measure the meshing clearance; 2. Check whether each bearing has signs of wear and looseness; 3. Check whether the anchor bolts are fastened; 4. Observe the motor operation status and detect the motor speed

1. Adjust the gear meshing clearance to the standard value; 2. Replace worn bearings and fasten loose parts; 3. Tighten the anchor bolts and adjust the machine level; 4. Contact an electrician to check the motor and eliminate motor faults

Feed system jams and cannot feed normally

1. Feed screw wear or jamming; 2. Foreign objects blocking the guide rail; 3. Feed motor failure; 4. Incorrect control system parameter settings

1. Check whether the feed screw surface is worn or jammed; 2. Clean foreign objects and iron chips on the guide rail; 3. Check the operation of the feed motor; 4. Verify the feed parameters of the control system

1. Lubricate or replace the feed screw; 2. Thoroughly clean the guide rail foreign objects and do a good job in guide rail lubrication; 3. Overhaul the feed motor; 4. Reset the control system feed parameters and restore the default settings (if necessary)

Lubrication system abnormality, no lubricating oil output

1. Insufficient lubricating oil; 2. Oil pump failure; 3. Oil circuit blockage; 4. Damage to the lubrication system valve

1. Check the oil level of the lubricating oil tank; 2. Start the oil pump and observe the operation status of the oil pump; 3. Check whether the oil circuit is blocked or leaking; 4. Check whether the lubrication system valve is normally open

1. Add lubricating oil that meets the standard; 2. Overhaul or replace the oil pump; 3. Unblock the blocked oil circuit and repair the leaking part; 4. Replace the damaged valve to ensure the valve is normally open

 

 

Warm Reminder: During self-inspection, please be sure to cut off the machine power first and take good safety protection measures to avoid equipment damage or personal safety accidents caused by improper operation. During the troubleshooting process, if serious component damage or unsolvable faults are found, please contact our after-sales in a timely manner, and do not operate forcibly.

 

 

About Zhejiang Toman Intelligent Technology Co., Ltd. (Toman)

Toman is a company that adheres to the strategic vision of to be the leader in the professional field, with the mission of innovation to drive customer value enhancement, and the business philosophy of WISE, ALWAYS KEEP STEP AHEAD. In operation since 2006, the company includes the complete range of gear hobbing machine, gear cutting machine, gear machining compound machine tools, gear shaving machine, automatic production units, automatic turning production lines, and MES manufacturing execution system, etc. TOMAN today, is recognised as an industry leader for machines in China.

 

 

Toman cutting machines:

CNC high precision gear hobbing machine, gear chamfering machine, gear shaving machine, gear hobbing machine with integrated chamfering station etc.

-Profitable -Intelligent -Accurate

Our machines are suitable for commercial vehicle gear, passenger vehicle gear, construction machinery gear, especially for the processing of new energy vehicle gear.

 

 

For more information about cnc gear cutting machines, please visit our website:

www.zjtoman.com

www.tomanmachines.com

 

For further information, please contact:

Sharon Gong

Master of Mechanical Engineering

Whatsapp/Wechat: +8613589398142

Mail: sharon@zjtoman.com

gongyx@zjtoman.com

 

Skype: sharon.gong525