{ Excavator stick cylinder }

  • Excavator and bulldozer hydraulic cylinder removal steps

    | /

    Excavator and bulldozer hydraulic cylinder removal steps

    Xiamen Fortune Industrial Co.,Limited supply excavator and bulldozer hydraulic boom cylinder,lift cylinder,arm cylinder,ram cylinder,stick cylinder,bucket cylinder etc for backhoe Caterpillar,Komatsu,Hitachi,Doosan,Kobelco,JCB,Hyundai,Volvo,Shantui,John Deere,CASE,New Holland,Bobcat,Daewoo,Samsung,Kato,Wheel Loader,Crane,and so on.

    Below FT will introduce how to remove excavator hydraulic cylinder to replace and repair

    1. Before disassembling the hydraulic cylinder, the fortunepart hydraulic circuit should be relieved of pressure. Otherwise, when the oil pipe joint connected with the oil cylinder is loosened, the high-pressure oil in the circuit will be sprayed out quickly. When depressurizing the hydraulic circuit, first loosen the handwheel or pressure regulating screw at the relief valve, etc., to unload the pressure oil, and then cut off the power or power source to stop the hydraulic device.

    2. During disassembly, prevent damage to the top thread of the piston rod, the thread of the oil port, the surface of the piston rod, and the inner wall of the cylinder liner. In order to prevent the slender parts such as the piston rod from bending or deforming, the stow should be used to support the balance during placement.

    3. The disassembly must be carried out in order. As the structure and size of various hydraulic cylinders are not the same, the disassembly sequence is also slightly different. Generally, the oil in the two chambers of the cylinder should be drained, then the cylinder head should be removed, and finally the piston and piston rod should be removed. When disassembling the cylinder head of the hydraulic cylinder, special tools should be used for the key or snap ring of the internal key type connection, and the use of flat shovel is prohibited; the flange type end cap must be pushed out with screws, and hammering or hard prying is not allowed . When the piston and piston rod are difficult to withdraw, they should not be forced out. The reason should be found out before disassembly.

    4. Before and after unloading, try to create conditions to prevent the parts of the hydraulic cylinder from being contaminated by surrounding dust and impurities. For example, the disassembly should be carried out in a clean environment as much as possible; after disassembly, all parts should be covered with plastic cloth, not cotton cloth or other working cloth.

    5. After the oil cylinder is disassembled, check carefully to determine which parts can continue to be used, which parts can be used after repair, and which parts must be replaced. For more information and maintenance knowledge, welcome to pay attention to the maintenance experts of excavator accessories on the official account, and provide the most professional accessories services and technical consultations, so that your equipment has more lasting vitality!

     

    Komatsu excavator hydraulic boom cylinder,arm cylinder and bucket cylinder

    Below is the model list for excavator and bulldozer hydraulic cylinders

    Fit for Brand Excavator and bulldozer Model List
    KOMATSU PC20 PC30 PC35 PC40 PC45
    PC60-1-3-5-6-7 PC75 PC100-3-5 PC120-3-5 PC150
    PC200-1-3-5-6-7-8 PC220-1-3-5-6 PC240 PC300-1-3-5-6-7 PC350
    PC400-3-5-6 PC450 PC650 PC750 PC800
    CATERPILLAR E55/E55B E70/E70B E110/E110B E120/E120B E180
    E215 E225DLC E235 E240 E300B
    E307 E306 E305 E311/E312 E320/E200B
    E322 E324 E325 E330 E339
    E345 E349 E450    
    HITACHI EX30 EX40 EX55 EX60-1-2-3-5 EX70
    EX100-1-3 EX120-1-3-5 EX150 EX200-1-2-3-5-8 EX220
    EX230 EX270 EX300-1-2-3-5-6 EX400-1-2-3-5 EX600
    UH043 UH052 UH053 UH07 UH081
    UH082 UH083 ZAXIS 60 ZAXIS 200-3-6 ZAXIS 240
    ZAXIS 270 ZAXIS 330 ZAXIS 360 ZAXIS 450 ZAXIS 870
    ZAXIS 110 ZAXIS 120      
    BULLDOZER D20 D3 D30 D31 D3L
    D3C D37 D3D D4C D40
    D4D D4H D41 D45 D50/D5/D5B
    D53/D57/D58 D60/D65 D6D/D6 D6C D6H
    D65=D85ESS-2 D75 D7G/D7R/D7H/D7 D80/D85 D85A-12
    D8K D8N/R/L/T D9N D85EX-15 D150
    D155 D275 D355    
    KATO HD80 HD140 HD250 HD400(HD450) HD550
    HD700(HD770) HD820(HD850) HD880 HD900 HD1023
    HD1220 HD1250 HD1430 HD2053  
    SUMITOMO SH60 SH70 SH100 SH120 SH200
    SH210 SH220 SH280 SH300 SH320
    SH350 SH360 SH400 SH450 SH460
    LS2800FJ S340 S430    
    KOBELCO SK60 SK70 SK75 SK07-N2 SK07/2/7
    SK100 SK120-3-5-6 SK125 SK160 SK200-1-3-5-6-8
    SK210 SK220-3-6 SK230 SK250 SK260
    SK300-3-6 SK320 SK330 SK400 SK480
    DAEWOO DH55 DH60 DH80 DH130 DH150
    DH200 DH220 DH215 DH220 DH258
    DH280 DH300 DH360 DH370-9 DH400
    DH420 DH500 UH07 K907C  
    HYUNDAI R60 R80 R130-5-7 R150 R200
    R200-5 R210 R210-7 R215-7 R220-5
    R225-7 R260-5 R265 R290 R300-5
    R305 R320 R385 R420 R450-3-5
    VOLVO EC55B EC140B EC210 EC240 EC290B
    EC290B PRIME EC360 EC460 EC700  
    KUBOTA KX35 KX50 KX85 KX135 KX155
    KX161        
    DOOSAN DX60 DX200 DX300 DX340  
    LIEBHERR R914 R916 R926 R934 R944
    R954 R964 R974    
    YUCHAI YC35 YC60 YC85 YC135  
    CASE CX55 CX75 CX135 CX240 CX360
      YM55 YM75 CX310    
    TAKEUCHI TB150 TB175      
    LIUGONG LG150 LG200 LG220 LG925 LG936
    SANY SY65 SY90 SY130 SY215 SY335
    SY365 SY6385      
      XG60 XG80 XG120 XG200 XG330
    XG370        
      SE210LC SE280LC      
    Mitsubishi MS110/MS120 MS180 MS230 MS280