TCM FD35C9, Руководство по ремонту

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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.
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REASSEMBLY
Note: 1. Cautions as to handling spools
● Too large torque to the threads will cause the malfunction of the spool. Observe the specified
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.