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INSPECTION ET ENTRETIEN
INSPECTION ET NETTOYAGE DES COMPOSANTS DU
SURPRESSEUR/VÉRIN
The prevention of foreign contaminant damage is critical when working with hydraulic
equipment. Keep the work area clean. Using masking tape, cover all exposed holes and
parts which may allow entry of foreign contaminants. Habitually clean the work area by
wiping with a lint-free dry cloth.
Mating surfaces are machined to a smooth surface. Use care to avoid scratches, nicks,
dents, or other damage to machined surfaces. If damaged, the component must be
repaired or replaced as required.
1. Clean all parts with a degreaser solvent using a Scotchbrite® or equivalent cleaning
pad.
Compressed air can cause injury or death! Limit air pressure to a maximum of 30 psi
(2 bar). Protect your eyes with safety glasses! Do not direct compressed air current at
exposed skin! Do not direct compressed air current at other people within the work area!
2. Remove all thread sealant from threads using an appropriate thread sealant solvent.
Remove old thread sealant residue with a maximum of 30 psi (2 bar) of compressed air.
3. Inspect the heads and threads of all fasteners and plugs and corresponding
threaded bores for damage. Repair or replace as required
4. Ensure free movement of all poppets, plungers, and spools within their
corresponding
corresponding bores for evidence of damage, wear, or deformity. Particularly close
attention should be given to conical ends and corresponding seats. Inspect for
annular rings caused by striking against the seat with excessive force. Replace if
damaged, worn, or otherwise deformed. Do not attempt to repair!
5. Inspect all components, particularly machined surfaces, including all hydraulic ports,
for evidence of scratches, scoring, nicks, dents, wear, deformity or other damage.
Particularly close attention should be given to o-ring grooves and counter bores.
Repair or replace as required.
6. Inspect drained and residual hydraulic fluid for evidence of contamination. If
contaminated, inspect all components, seals, etc., to determine the cause.
bores.
Inspect
all
poppets,
plungers,
69
spools,
seats,
and
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