TCM FD35C9 - Page 251

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■AFTER DISASSEMBLY
(1) Cleaning
Clean all the disassembled parts thoroughly in clean mineral oil and dry with compressed air.
Place them on a clean sheet of paper or cloth for inspection.
(2) Inspection
Inspect all the disassembled parts for burrs, scratches, scores or other defect.
● Any dent or nicks on the load checkseatofthevalve housing may be repaired by lapping. Use
caution not to leave behind the lapping agent inside the valve.
● Inspectthespoolforscratchesordentontheperiphery.Minorscratchesmayberemovedusingoil
stone or a cloth and lapping agent.
● Inspecttheslidingpartsforsmoothmovementandallgroovesandpassagesforforeignmaterial.
● Inspectallthespringsfordeterioration,deformationorwear,replacinganydefectivespringwitha
new one.
● Replaceanyreliefvalvethatdoesnotoperatesmoothlywithanewone.
● Replaceall“O”-rings,back-uprings,andwiperringswithnewones.
● Ifthecaporplugwasremoved,inspecteachholeandplugseatandaroundthemforforeignmatter.
■REASSEMBLY
Note: 1. Cautions as to handling spools
●Toolargetorquetothethreadswillcausethemalfunctionofthespool.Observethespecied
torque.
●Spools,springsandspoolendsshouldbereassembledinthesamecombinationasbeforethey
were removed.
2. Cautions as to applying an adhesive (to male and female threads)
● Cleaning(degreasing)
Steam clean the adherent surfaces using acetate or ether, or clean them using an alkaline
detergent.
Do not use gasoline or kerosene.
● Drying
Dry with clean compressed air or air dry at room temperature. Improper drying will cause poor
bonding effect of the adhesive.
● Applyingprimer
Spray a light coat of “LOCTITE PRIMER T” curing-accelerating agent to the adherent
surfaces.
Leave them for 3 to 5 minutes for drying.
● Applyinganadhesive
Apply a small amount of adhesive (LOCTITE#271 or equivalent) to the two or three threads of
the spool from its inlet. Use caution not to allow the adhesive-coated area to come in contact
with the spring seat.