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

25/223168

Solenoid valve 25/223168 JCB 3CX/4CX, aftermarket

In stock

0,00 ₺

332/G3552

Solenoid valve 332/G3552 JCB 3CX/4CX, aftermarket

In stock

0,00 ₺

332/G3552

Solenoid valve 332/G3552 JCB 3CX/4CX, genuine

In stock

0,00 ₺

556/70380

Stabiliser cylinder barrel 556/70380 JCB 3CX/4CX, aftermarket

In stock

0,00 ₺

25/937100

Stabiliser cylinder check valve 25/937100 JCB Loadall, genuine

In stock

0,00 ₺

25/206700

Stabiliser lock valve 25/206700 JCB 3CX/4CX, aftermarket

In stock

0,00 ₺

332/E2953

Stabiliser lock valve 332/E2953 JCB 3CX/4CX, genuine

In stock

0,00 ₺

25/974629

Steel spring 25/974629 JCB, aftermarket

In stock

0,00 ₺

333/C6980

Steer mode valve 333/C6980 JCB 3CX/4CX, genuine

In stock

0,00 ₺

928/60298

Steering anti-jerk manifold 928/60298 JCB, aftermarket

In stock

0,00 ₺

35/410700

Steering control unit 35/410700 JCB 3CX/4CX, aftermarket

In stock

0,00 ₺

35/410900

Steering control unit 35/410900 JCB 3CX/4CX, aftermarket

In stock

0,00 ₺

JRJ0346

Steering control unit JRJ0346 JCB, aftermarket

In stock

0,00 ₺

553/60165

Steering cylinder 553/60165 JCB 3CX/4CX, aftermarket

In stock

0,00 ₺

333/E3268

Steering cylinder rod, 30 mm 333/E3268 JCB, aftermarket

In stock

0,00 ₺

333/E3268

Steering cylinder rod, 30 mm 333/E3268 JCB, genuine

In stock

0,00 ₺

448/17205

Steering cylinder seal kit 448/17205 JCB, genuine

In stock

0,00 ₺

332/G5651

Steering unit (orbitrol) 332/G5651 JCB, genuine

In stock

0,00 ₺

332/G5651

Steering unit (orbitrol) 332/G5651 JCB, OEM

In stock

0,00 ₺

SU006

Steering unit (orbitrol), aftermarket

In stock

0,00 ₺

332/D4864

Steering unit with shock valves 332/D4864 JCB Loadall, aftermarket

In stock

0,00 ₺

35/910095

Steering valve 35/910095 JCB, aftermarket

In stock

0,00 ₺

20/925318

Travel motor 20/925318 JCB JS220, aftermarket

In stock

0,00 ₺

100-3515210

Triple protection valve 100-3515210 KAMAZ, aftermarket

In stock

0,00 ₺

Showing 601 to 624 of 630 (27 Pages)

Hydraulic system parts (page 26)