Travel Motor 21W-60-4120 21W-60-22130 201-60-73500 For Komatsu Excavator PC60-7 PC60-7E PC60-7S PC70-7 PC70-7E PC75US-3

Cautions of Final Drive Installation

1. Clean the hydraulic oil circuit, replace the hydraulic oil filter and return oil filter. The mixing of fine particles such as mud, sand or metal powder in the hydraulic oil will wear out motor inner parts too quickly. It is also the main reason for the stuck phenomenon.

2. Check whether the gearbox is filled with gear oil. The volume of the gear oil should be more than half of the total volume of the gearbox. (Generally,factory will add gear oil in final drive )

3. Generally, for a new Chinese made final drive , it is necessary to replace the new gear oil after using for 7 days or 60 hours for the first time. The second time to change the gear oil is in the 2nd -3rd months. After that, it depends on the usuage situation of the final drive.

4.Try to avoid long-term immersion in water and avoid long-term operation in dusty environment; try to keep the working temperature between -5 to +30 degrees Celsius, avoid extreme cold and hot weather.

5.Difference between the quality of hydraulic oil (motor part) and gear oil (gear box part): Good hydraulic oil and gear oil can extend the service life.

6. Check if the pipeline connection is correct.

FAQ

1. When will get the items after I place order?
Once your payment is confirmed, we will arrange the goods in 1-3 working days; if not in stock , we will inform you before placing the order.

2. How can I do if there is something wrong with the items?
First of all, we have full confidence in our professional knowledges, and we also supply experienced engeerneers checking before sending parts to you, if still have answers, please supply us pictures or vedio for further checking and confirmation, after we confirmed us wrong, we would supply you parts freely, or return parts to us, or other mathoths to save costs during fixing...

3.What is your main products ?
We are specialized in the excavator gear parts, such as travel gearbox parts, swing gearbox. If you need other excavator parts, we also can supply as your requirements.

Koko Shop Machine Co.,Ltd (Huilian Machinery) found in 2011, is a professional supplier who is specializd in construction machinery parts for excavator and attachments, including Hydraulic Hammer, Hydraulic Breaker Spare Parts, Quick Coupler, Hydraulic Grab, Ripper, Vibrator, etc. And, Excavator parts Engine, Hydraulic Pump, Swing motor, Travel motor, Main control Valve, Swivel Joint, Hydraulic seal kit. After 12 years developments, Huilian Machinery factory make quality parts with it's advance technology and advance machines. Hydraulic Breaker Parts suitable for: Atlas copco, Soosan, Furukawa, Atlas Copco, Alpha, Bretec, BTI, CATEEEEEE, CP, Daemo, DMB, Alicon, D&A, Doosan, EDT, Epiroc, Everdigm, Fine, Furukawa, General GB, Hammeroc HR, Hyundai HDB, Indeco HP MES, JCB, Kent, KCB, Komac, Komatsu JTHB, JKHB, Korota, Krupp, Kwanglim, Konan, Montabert, MSB, MTB, Noah, NPK, Okada, OKB, Omal, Poqutec, Powerking, Promove, Rammer, RB Hammer, RBI, Rhino, , Soosan, Stanley, Teisaku, T&H, Toku, Toyo, UBTECH, ECand so on. Hydraulic Excavator Parts suitable for: Komatsu, Hitachi, EC, Hyundai, Kobelco, Sumitomo, Kato, Doosan, JCB, cx, Sany, Liugong, XCMG, Xugong, Zoomlion, etc. OEM and ODM service offered.

In order to meet different customers' needs, Huilian Machinery also purchases Genuine Parts from German, Japan, Korea. And we established a long-term business relationship with customers from all over the world, like: U S A, Mexico, Saudi Arabia Kenya, Algeria, UAE, Russia, Morocco, etc. In 2023, Huilian Machinery became Distributors of easywork engineering machinery (SANY Group) in Russia and indonesia.

Koko Shop Machine is continuously seeking the chances to meet all the friends both from home and abroad for win-win cooperation.

And we believe that quality parts will take us to a further place. Let’s build a better tomorrow, together!

Introduction to Koko Shop Company

CertifiCATEEEEions

Enteprise Honor

Service Brand

Our Factory

Koko Shop Machine Management Department is an important control method for processing quality. It equipped with the most advanced inspection equipments The professional control devices,it can provide accurate reference data to choose the most suitable material and accessories, which also effectively control parts quality. Besides, it also provides digital information for engineers and quality controller to determine feasibility for spare parts after processing. This is the working processing of quality control.

Chooing steady quality supplier. After purchasing raw material, duing testing if it is proved well, then we will arrange these eligible matrial that come into warehouse.

When the spare parts finish and come into testing working conditon. Every worker will be responsible for their spare parts. They will give out fact testing date and results. After proving testing date is accord with delivery standard. Then Koko Shop Machine Quality Management Department will allow these spare parts that go to packing department and packing.

Before delivery, Koko Shop Machine Quality Management Department should check all mark and packing conditon. If it is prove it is accord with exporting standard and customer's requirement. Then they will allow these equipment come into fininshed product area. 

Of course Koko Shop Machine Quality Management Department have the right to make sample testing for every production step to make sure product quality.