D52800 Coupling is a genuine hydraulic quick coupler used on selected CASE 580 backhoe loader models. This part is a female hydraulic coupling and is used in the hydraulic circuit system to connect and disconnect hydraulic lines properly.
This hydraulic coupling helps hydraulic oil flow through the correct circuit and allows the hydraulic line to be connected securely. It is commonly used in rear equipment hydraulic circuit, return lines, stabilizer cylinder hydraulic circuit, and 3-point hitch valve hydraulic circuit.
If the coupling is worn, leaking, blocked, loose, or damaged, the hydraulic connection may not seal properly. This can cause hydraulic oil leakage, weak hydraulic function, pressure loss, or unstable machine operation.
Suitable Models
CASE 580 B
CASE 580 C
CASE 580 D
CASE 580 Super D
CASE 580 E
CASE 580 Super E
CASE 580 F
CASE 580 G
Product Details
Part Number: D52800
Product Name: Coupling – Hydraulic
Type: Female Hydraulic Quick Coupler
Application: Hydraulic Line / Hydraulic Circuit
Diagram Reference: No. 20
Brand: CNH Original Genuine
Machine Type: CASE Backhoe Loader
Condition: New Genuine Part
Application Area
Equipment hydraulic circuit
Rear equipment and return lines
Backhoe stabilizer cylinder hydraulic circuit
3-point hitch valve hydraulic circuit
Hydraulic quick coupling connection
Common Symptoms
Hydraulic oil leaking from coupling area
Hydraulic hose connection becomes loose
Hydraulic function becomes weak
Hydraulic pressure loss
Coupler difficult to connect or disconnect
Oil flow blocked or unstable
Why Replace
Replacing a damaged hydraulic coupling helps prevent hydraulic oil leakage, keeps the hydraulic line connection secure, maintains hydraulic pressure, and helps the machine operate smoothly.
Recommended Inspection
Check the hydraulic hose, fitting, O-ring, return line, and related hydraulic connectors when replacing the coupling.
这个液压接头可以帮助液压油在正确的管路中流动，并确保油管连接位置稳固。它常用于后方设备液压系统、回油管路、稳定脚油缸液压系统，以及 3-point hitch valve 液压系统。
如果接头磨损、漏油、堵塞、松动或损坏，液压管连接处可能无法密封，导致液压油泄漏、压力不足、动作变弱或机器操作不稳定。
适用车型
CASE 580 B
CASE 580 C
CASE 580 D
CASE 580 Super D
CASE 580 E
CASE 580 Super E
CASE 580 F
CASE 580 G
产品资料
Part Number: D52800
产品名称: Coupling – Hydraulic / 液压接头
类型: Female Hydraulic Quick Coupler
用途: 液压油管 / 液压系统连接
图号: No. 20
品牌: CNH Original Genuine
机器类型: CASE 反铲装载机
状态: 全新原装零件
使用位置
设备液压系统
后方设备与回油管路
稳定脚油缸液压系统
3-point hitch valve 液压系统
液压快速接头连接位置
常见损坏情况
接头位置漏液压油
油管连接松动
液压动作变弱
液压压力不足
接头难以连接或拆卸
油流不顺或堵塞
为什么需要更换
更换损坏的液压接头可以帮助防止液压油泄漏，保持油管连接稳固，维持液压压力，并让机器操作更加顺畅。
建议检查
更换接头时，建议同时检查液压油管、fitting、O-ring、回油管路和相关液压连接件。
