Product Descriptio
| Pos. | Part No | Qty | Parts name |
| 1 | 4632973 | [1] | VALVE;CONTROL (3/4) |
| 2 | [1] | PLUNGER | |
| 3 | 810706 | [1] | SPRING |
| 4 | 4506418 | [1] | O-RING |
| 5 | 979207 | [1] | RING;BACK-UP |
| 6 | 979208 | [1] | CAP |
| 7 | 979209 | [1] | SPACER |
| 8 | 979210 | [1] | CHECK |
| 9 | [1] | HOUSING | |
| 10 | [1] | PLUNGER | |
| 11 | [1] | PLUNGER | |
| 12 | [1] | PLUNGER | |
| 13 | 979214 | [1] | CAP |
| 14 | 810405 | [1] | SPRING |
| 15 | 4088425 | [4] | O-RING |
| 16 | 622816 | [1] | SPACER |
| 17 | [1] | SPOOL | |
| 18 | 4674564 | [1] | VALVE;RELIEF |
| 19 | 622803 | [1] | COVER |
| 20 | 101616 | [8] | O-RING |
| 21 | 622805 | [4] | SLEEVE |
| 22 | 622806 | [8] | GUIDE |
| 23 | 622807 | [4] | SPRING |
| 24 | 622808 | [4] | CAP |
| 25 | 979216 | [1] | COVER |
| 26 | 622810 | [4] | CAP |
| 27 | 957366 | [4] | O-RING |
| 28 | M341230 | [13] | BOLT;SOCKET |
| 29 | 979219 | [1] | COVER |
| 30 | 809715 | [1] | SLEEVE |
| 31 | 809714 | [1] | POPPET |
| 32 | 809713 | [1] | SPRING |
| 33 | 809712 | [1] | SEAT |
| 34 | 809711 | [1] | O-RING |
| 35 | 818008 | [1] | O-RING |
| 36 | 809710 | [1] | PISTON |
| 37 | 809709 | [1] | NUT |
| 38 | 809708 | [1] | SLEEVE |
| 39 | 809716 | [1] | SCREW |
| 40 | 809717 | [1] | NUT |
| 41 | 212416 | [1] | O-RING |
| 42 | 809718 | [1] | CAP |
| 43 | 135206 | [1] | SPRING |
| 44 | 809719 | [1] | POPPET |
| 45 | 4040813 | [1] | RING;BACK-UP |
| 46 | 809720 | [1] | O-RING |
| 47 | 624703 | [1] | O-RING |
| 48 | 622825 | [1] | CAP |
| 49 | 223104 | [1] | RING;BACK-UP |
| 50 | 622827 | [3] | SPRING |
| 51 | 622829 | [3] | CHECK |
| 52 | 624702 | [1] | CAP |
| 53 | 838001 | [1] | CAP |
| 54 | 838002 | [1] | O-RING |
| 55 | 818007 | [4] | O-RING |
| 56 | 966689 | [2] | O-RING |
| 57 | 4113187 | [3] | RING;BACK-UP |
| 58 | 979222 | [1] | CAP |
| 59 | 4469301 | [4] | VALVE;RELIEF |
| 60 | 979258 | [1] | SLEEVE |
| 61 | 622835 | [2] | PISTON |
| 62 | 4506415 | [2] | O-RING |
| 63 | 4040814 | [2] | RING;BACK-UP |
| 64 | 979259 | [2] | SPOOL |
| 65 | 979260 | [1] | SPRING |
| 66 | 622831 | [2] | GUIDE |
| 67 | 979261 | [1] | SLEEVE |
| 68 | 4138931 | [2] | O-RING |
| 69 | 453932 | [2] | CAP |
| 70 | 810603 | [2] | O-RING |
| 71 | 979262 | [1] | SLEEVE |
| 72 | 979263 | [1] | SPRING |
| 73 | 979264 | [1] | SLEEVE |
| 74 | 809721 | [4] | NUT |
| 75 | 809722 | [4] | SEAT |
| 76 | 809723 | [4] | SLEEVE |
| 77 | 809724 | [4] | SPRING |
| 78 | 809725 | [8] | RING;BACK-UP |
| 79 | 809726 | [4] | O-RING |
| 80 | 809728 | [4] | POPPET |
| 81 | 809729 | [4] | PISTON |
| 82 | 818011 | [4] | O-RING |
| 83 | 4027959 | [4] | RING;BACK-UP |
| 84 | 809733 | [4] | POPPET |
| 85 | 809732 | [4] | SPRING |
| 86 | 809731 | [4] | O-RING |
| 87 | 818012 | [4] | O-RING |
| 88 | 809730 | [4] | SCREW |
Theory
During the working process of the excavator hydraulic system, the hydraulic oil is sucked into the working pump from the bottom of the tank through the oil filter, and the hydraulic oil with a certain pressure is output from the oil pump and enters a set of parallel distribution valves. The corresponding actions are realized through the handle-→pilot valve-→working valve group. The system limits the total pressure of the entire system through the master safety valve on the main oil line. The safety valves of each group of working oil lines provide overload protection and protection for the corresponding oil lines respectively. Oil replenishing effect.
About Xinfeng Machinery (XF) parts:
Xinfeng Machinery Parts Company was established in 1998. It is a professional team composed of high-quality technical personnel integrating production, maintenance, sales, and service. It is committed to providing customers with high-quality and efficient services. It is headquartered in Guangzhou, China.
We have been engaged in the excavator industry for 25 years. We sell original used parts, rebuilt parts,original new parts, and OEM new parts for many types.We can provide many types for you to choose from. We can provide a quality-trusted full range of hydraulic pumps, travel motors, final drives, main control valves, swing motors, and engines for KOMATSU, , HITACHI, JOHN DEERE, VOLVO, CASE JCB, KOBELCO, NEW HOLLAND, SUMITOMO, KATO, BOB, DOOSAN, and HYUNDAI.
We provide a customer satisfaction guarantee on all our products. We have invested in providing only the highest-quality replacement parts to our customers. Develop a more broad business space together based on long-term, friendly, mutually beneficial, and win-win business relations.
If you encounter any technical problems with the excavator, you can consult us.
