Guangzhou XinFeng Engineering Machinery Co., Ltd.

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Crawler Excavator Swing Motor Assy 312-6318 MSG-44P CAT307CD 308D

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Crawler Excavator Swing Motor Assy 312-6318 MSG-44P CAT307CD 308D

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Brand Name :CAT
Model Number :CAT307C D CAT308C D
Certification :ISO9001
Place of Origin :Guangdong
MOQ :1 Sets
Price :Negotiable
Payment Terms :L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability :500-Sets/month
Delivery Time :3-5 days
Packaging Details :Wooden Case Packing
Part Number :312-6318
Warranty :6months
Delivery time :3-5 days
Packaging Wooden :Wooden box with safty
Video outgoing-inspection :Provided
Application :Crawler Excavator
Quality :High Quaity
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CAT307CD 308D Excavator hydraulic swing motor assy MSG-44P 312-6318 swing motor

Product Descriptio

Pos. Part No Qty Parts name Comments
1 315-4331 [2] KIT-VALVE  
      (EACH INCLUDE SEAL-O-RINGS & RING-BACKUPS)  
2 279-5498 [1] ORIFICE  
3 5F-8651 [1] BALL BEARING  
4 099-7078 [1] PIN  
5 188-4052 [1] PLATE (VALVE)  
6 139-7324 [2] PIN  
7 150-0883 [2] PIN  
8 095-9805 M [8] BOLT-SOCKET HEAD (M14X2X40-MM)  
9 185-0352 [1] VALVE GP-SWING CUSHION  
10 185-0353 [1] VALVE GP-PILOT  
11 095-1574 [2] SEAL-O-RING  
12 8T-8442 M [2] BOLT-SOCKET HEAD (M6X1X30-MM)  
13 095-1578 [3] SEAL-O-RING  
14 139-7358 [3] BOLT  
15 188-4065 [4] PLATE  
16 188-4066 [2] PLATE  
17 137-3688 [1] ORIFICE  
18 279-4706 [1] PLUG  
19 3J-1907 [1] SEAL-O-RING  
20 315-0244 [1] KIT-HOUSING  
      (INCLUDES SEAL-O-RINGS, PLUG & SEAL)  
21 171-9439 [1] CARRIER  
22 171-9440 [4] WASHER (36X58.5X2-MM THK)  
23 315-0245 [4] RACE-BEARING  
24 315-0246 [4] BEARING-NEEDLE  
25 171-9441 [4] GEAR-PLANETARY  
26 171-9442 [1] PLATE (THRUST)  
27 5W-1341 M [4] BOLT-SOCKET HEAD (M8X1.25X16-MM)  
28 171-9456 [1] GEAR (SUN)  
29 171-9443 [1] CARRIER  
30 150-0814 [3] WASHER  
31 150-0813 [3] RACE-INNER  
32 150-0812 [3] BEARING AS-NEEDLE  
33 171-9445 [3] GEAR (PLANETARY)  
34 315-0247 [1] KIT-PLATE  
      (INCLUDES PLATES)  
35 171-9449 [1] GEAR (DRIVE)  
36 171-9457 [1] RING-RETAINING  
37 315-0249 [1] CASE  
38 1B-3867 [1] BALL BEARING  
39 185-0357 [1] SHAFT  
40 185-0358 [1] PLATE (THRUST)  
41 315-0248 [1] KIT-BARREL  
      (INCLUDES RING-RETAINING, BARREL, SPACERS, SPRING, PINS, RETAINER, GUIDE & PISTON)  
42 188-4049 [1] PLATE-FRICTION  
43 188-4050 [1] COLLAR  
44 095-1723 [1] SEAL-O-RING  
45 188-4051 [1] PISTON (BRAKE)  
46 095-1720 [1] SEAL-O-RING  
47 188-4053 [1] SEAL  
48 188-4054 [12] SPRING  
49 188-4055 [8] SPRING  
50 188-4056 [1] SEAL  
51 139-7336 [1] PLUG  
52 095-1579 [1] SEAL-O-RING  
53 315-0250 [1] COVER  
54 188-4059 [2] VALVE-CHECK (MAKEUP OIL)  
55 188-4060 [2] PLUG  
56 095-1587 [2] SEAL-O-RING  
57 188-4061 [2] SPRING  
  M   METRIC PART  

Crawler Excavator Swing Motor Assy 312-6318 MSG-44P CAT307CD 308DCrawler Excavator Swing Motor Assy 312-6318 MSG-44P CAT307CD 308D


Maintenance method
1.The hydraulic oil maintenance of the swing motor can be maintained at the same time as the entire hydraulic system. The hydraulic oil needs to be replaced every 2,000 hours. The gear oil of the rotary reducer needs to be replaced every 1,000 hours.

2.In daily operation, we need to observe the gear oil level of the rotary reducer from the dipstick. In some cases, abnormal loss of lubricating oil will be found, and we need to open the observation port of the large ring gear (bottom of the boom cylinder, butter filling port) , check whether the lubricating oil leaks into the large ring gear cavity through the sealing ring of the rotary reducer.
Crawler Excavator Swing Motor Assy 312-6318 MSG-44P CAT307CD 308D

Theory
1.The slewing motor is a key component of the excavator's slewing mechanism. It converts the oil pressure provided by the main pump into mechanical energy and inputs it to the reducer. Its working performance will directly affect the rotation speed, driving torque, and rotation of the entire machine. Parking and parking brakes are key to determining the productivity of the entire machine.

2.After the excavator has been working for a long time, the swing motor often appears weak in rotation and unstable in rotation. At this time, it is necessary to replace the internal parts based on the test results.
Packing
Crawler Excavator Swing Motor Assy 312-6318 MSG-44P CAT307CD 308D

Shipping methods

BY EXPRESS, AIR, SEA
Crawler Excavator Swing Motor Assy 312-6318 MSG-44P CAT307CD 308D


Crawler Excavator Swing Motor Assy 312-6318 MSG-44P CAT307CD 308D

FAQ
1. How to quickly and accurately buy products what lneeded?
A: Provide the original parts number to us to check.

2. How long have you been in the excavator
A: We are engaged in excavator parts since 1998


3. lfI don't know the part number,what shouldI do?
A: Please send us size and pictures of old products.

4. What is the warranty of the products?
A: The warranty is 6/12 Months based on the specific product.


5. How long is your delivery time?
A: The normal delivery time is 3-5 days for stock sproductsafter getting payment. lf not in stock, we will inform you thetime requlred.

6. Which shipping term you can supply?

A: By sea,air or by express ( DHL,Fedex,TNT,UPSEMS)


7. What is your MOQ?
A: Small order and sample order are acceptable


8. Do you have any After-Sales service?
A: Yes!Our

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