Control valve spool 25/221612A, aftermarket

25/221612A

Brand
JF Parts
Article
25/221612A
Machine system
Hydraulic system
Part type
Valve spool
Machine brand
JCB, HIDROMEK, MST
Manufacturing type
Aftermarket
Compatibility
JCB 3CX, 4CX
All the features

In stock

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For the JCB 3CX and 4CX backhoe loaders: control valve spool 25/221612A, an aftermarket part.

The spool is a precision-machined steel rod in a valve section that decides which side of the cylinder gets the oil; as the control lever moves, the spool slides and opens or closes the passages. The lands and notches on it set the speed and smoothness of the movement, so the spools of different sections in one block differ and are identified by letter. A scored or worn spool causes internal leakage, creep and sticking. Leaking spool seals show as oil around the control levers. The spool is supplied new, and its surface must be protected in transit, since even a small scratch can cause leakage. The spool is made of steel.

Specifications

Part number	25/221612A
Production type	Aftermarket
Part type	Valve spool
System / group	Hydraulic system
Machine make	JCB, HIDROMEK, MST

Compatibility

The spool is offered for the control valve listed on the card; compare its length, number of lands and linkage end with the old spool. Other parts are in Hydraulic control valves.

Fitting

Oil the spool with clean hydraulic oil and slide it into the bore without force, turning it slightly; if it binds, recheck the bore and spool. After assembly, work the lever in every direction to confirm the spool moves freely.

Specifications

Machine system
Hydraulic system
Part type
Valve spool
Machine brand
JCB, HIDROMEK, MST
Manufacturing type
Aftermarket
Compatibility
JCB 3CX, 4CX

Questions: 0

No questions about this product.

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JCB 3CX and 4CX hydraulic circuit diagrams by build year, with component keys

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