Control valve spool JCB/Hidromek/MST, aftermarket

N.P.N

Brand
INTER
Article
N.P.N
Machine system
Hydraulic system
Part type
Spool
Machine brand
JCB, HIDROMEK, MST
Manufacturing type
Aftermarket
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Control valve spool is an aftermarket part for the JCB, Hidromek and MST backhoe loaders.

The spool is a precision-machined steel rod that moves in the control valve body and opens or closes the oil path to and from the cylinders. When the control lever is moved the spool slides, sending oil to one side of the cylinder while the other side is connected to the tank. The clearance between spool and body is very small, so wear or scoring causes internal leakage, cylinders creeping down under load and loss of fine control.

Specifications

Production type	Aftermarket
Part type	Spool
System / group	Hydraulic system
Machine make	JCB, HIDROMEK, MST

Compatibility

According to the product card, this spool is for the rear control valve of backhoe loaders; fit is confirmed by the valve type and spool dimensions. Other parts are in Hydraulic control valves.

Fitting

Because the spool is matched to the valve body, check the bore in the body when changing it, as a new spool in a badly worn body may not cure the leakage. According to the product card, this spool is used in the rear (backhoe) valve of backhoe loaders and is listed for JCB, Hidromek and MST machines. Fit the spool lubricated with clean hydraulic oil, renew the spring and seals, and after assembly check that the lever returns freely to neutral. After changing the spool, check the valve pressure and the rate at which the cylinders creep down under load to confirm the repair.

Specifications

Machine system
Hydraulic system
Part type
Spool
Machine brand
JCB, HIDROMEK, MST
Manufacturing type
Aftermarket

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