Hydraulic system parts: pumps, cylinders, valves

Categories

07/10/2026 27

JCB JS200–JS260 Monitor Messages: What They Mean and What to Check

On JCB JS200, JS210, JS220, JS240 and JS260 tracked excavators with the AMS control system, the monitor in the cab shows the working mode, the time, gauges for oil temperature, coolant temperature and fuel level, and warnings in the message line. Each message first of all points to a real problem: low fuel or coolant, a blocked filter, overheating. But if a message stays on after the cause has been put right, the sensor, wiring or controller is at fault. Below is what each message means and what to check, based on Section C of JCB service manual 9803/6400.

07/10/2026 34

JCB JS200–JS260 Track Tension: How to Check the Sag and Adjust the Tracks

Track tension on the JCB JS200, JS210, JS220, JS240 and JS260 tracked excavators should be checked every shift. With the track raised off the ground, the gap between the underside of the track frame and the top of the track shoe at the fourth bottom roller from the front should be 275–295 mm on hard ground and 320–340 mm on soft sand and sticky clay. Tension is adjusted with grease through the valve on the track adjuster cylinder. The procedure below follows Section 3 of JCB service manual 9803/6400.

07/10/2026 23

JCB 3CX and 4CX Dipper Ram Creep: Causes, Ram Creep Tests and Repair

If the dipper of a JCB 3CX or 4CX backhoe loader drops on its own under load, there are three possible causes: a leaking piston seal in the ram, spool leakage in the excavator valve section, or a leaking auxiliary relief valve (ARV) in that section. The JCB service manual gives a test procedure that identifies the culprit before the ram is removed and stripped. Below are the test sequence, the permitted creep and the repair rules from Section E of service manual 9803/3290.

07/10/2026 29

JCB 3CX and 4CX Hydraulic Oil: HP32 or HP46, System Capacity and Changing the Oil

For the hydraulic system of JCB 3CX and 4CX backhoe loaders, the JCB service manual recommends ISO VG32 oil — JCB Hydraulic Fluid HP32 — at air temperatures below +38 °C. The more viscous ISO VG46, JCB High Performance Hydraulic Oil, is for air temperatures above +38 °C only. Machines with Advanced EasyControl joysticks need a separate all-season HV class oil, JCB Multigrade Anti Shear. The hydraulic system holds approximately 130 litres. The oil is changed every 2000 hours and the filter at every 500-hour service.

07/10/2026 33

JCB 3CX and 4CX Antifreeze: Which Coolant to Use, How Much and How to Change It

On JCB 3CX and 4CX backhoe loaders with the JCB Dieselmax engine, the coolant is renewed every two years, at the 2000-hour service. The cooling system holds 18.5 litres. The JCB service manual calls for an ethylene glycol antifreeze to ASTM D6210 with corrosion inhibitors and rules out organic acid technology (OAT) products. The standard mix is 50%, which gives protection down to −40 °C. Below we cover choosing, checking and changing the antifreeze as described in Section 3 of JCB service manual 9803/3290.

Default Name Model

20/925660

Hydraulic fan motor 20/925660 JCB, aftermarket

In stock

0,00 ₺

332/H0538

Hydraulic fan motor 332/H0538 JCB, aftermarket

In stock

0,00 ₺

332/H0546

Hydraulic fan motor 332/H0546 JCB, aftermarket

In stock

0,00 ₺

332/H0550

Hydraulic fan motor 332/H0550 JCB, aftermarket

In stock

0,00 ₺

332/H0550

Hydraulic fan motor 332/H0550 JCB, genuine

In stock

0,00 ₺

333/L0746

Hydraulic fan motor 333/L0746 JCB Robot, genuine

In stock

0,00 ₺

332/W2449

Hydraulic hose 1/2" 1040 mm 332/W2449 JCB, genuine

In stock

0,00 ₺

333/D6586

Hydraulic hose 333/D6586 JCB, aftermarket

In stock

0,00 ₺

333/C0954

Hydraulic hose 5/8" 2090 mm 333/C0954 JCB, aftermarket

In stock

0,00 ₺

333/E0841

Hydraulic hose 6740 mm 333/E0841 JCB, aftermarket

In stock

0,00 ₺

128/C2625

Hydraulic pipe 128/C2625 JCB, aftermarket

In stock

0,00 ₺

128/C2652

Hydraulic pipe 128/C2652 JCB, aftermarket

In stock

0,00 ₺

333/G1681

Hydraulic pipe 333/G1681 JCB, genuine

In stock

0,00 ₺

334/C2647

Hydraulic pipe, right 334/C2647 JCB 3CX/4CX, aftermarket

In stock

0,00 ₺

20/925311

Hydraulic pump 20/925311 JCB Loadall, genuine

In stock

0,00 ₺

20/925340

Hydraulic pump 20/925340 JCB 3CX/4CX, genuine

In stock

0,00 ₺

20/925588

Hydraulic pump 20/925588 JCB Loadall, aftermarket

In stock

0,00 ₺

20/925591

Hydraulic pump 20/925591 JCB Loadall, genuine

In stock

0,00 ₺

20/925592

Hydraulic pump 20/925592 JCB Loadall, genuine

In stock

0,00 ₺

7991552D

Hydraulic pump 261333 Manitou, genuine Manitou

In stock

0,00 ₺

7049520006

Hydraulic pump 332/E6671 JCB Loadall, genuine

In stock

0,00 ₺

334/F6822

Hydraulic pump 334/F6822 JCB Loadall, genuine Parker

In stock

0,00 ₺

334/F6822

Hydraulic pump 334/F6822 JCB, aftermarket

In stock

0,00 ₺

6111153M93A

Hydraulic pump 6111153M93A Terex, OEM

In stock

0,00 ₺

Showing 505 to 528 of 630 (27 Pages)

Hydraulic system parts (page 22)