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Dan, Technician
Category: Agriculture and Farm Equipment
Satisfied Customers: 4291
Experience:  17+ yrs. shop and field experience with all major brands of heavy equipment, trucks and farm equipment - 1995 WyoTech graduate.
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27 .5 ton. Koehring. HAD CYLINDERS rebuilt boom extends but

Customer Question

27 .5 ton. Koehring. HAD CYLINDERS rebuilt boom extends but will not retract.
Submitted: 4 months ago.
Category: Agriculture and Farm Equipment
Expert:  Dan replied 4 months ago.

Hi my name is***** will be glad to try to help. Check the control valve that the spool for the retract function is moving freely and the relief valve cartridge for that function is free from debris causing it to stick open and there is no damaged orings causing a bypass of pressure. Let me know the results.