Sperian SURVIVAIR Opti-Fit 7540, Руководство по эксплуатации и обслуживанию

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SURVIVAIR Opti-Fit
™
Convertible Facepiece
36
XV. RESPIRATOR REPAIR TABLES
General Repair Table
The following repair table lists general repair steps to be followed for all respirator configurations (APR, SAR, PAPR).
COMPONENT INSTRUCTIONS
Head Strap/Headnet Remove the old head strap from the facepiece, noting the routing of the straps.
Install new head strap/Headnet.
Twin Seal/Connector 1. To remove, rotate the connector clockwise. Lift the connector hook and
rotate the connector counterclockwise, and pull outward.
2. Remove the twin seal o-ring from the groove in lens.
3. To install, gently separate the o-ring and gasket halves of the new twin seal.
A small part number tab should remain attached to each half. Do not use
the o-ring if it is damaged.
4. Place the o-ring into the groove on the lens with the part number tab aligned
with the slot.
5. Align the three lugs on the underside of the connector with the three slots
in the lens. Insert the connector into the lens port and rotate clockwise. An
audible click should be heard.
6. Install the new gasket onto the connector. The gasket must be seated in the
groove in the connector.
Nozzle Cover 1. To remove, pinch the two lower latches while lifting the lower tab.
2. Disengage the upper hook by lifting the cover upward.
3. To install, engage the cover on the nozzle upper hook.
4. Rotate cover downward until both lower latches engage the cover. An au-
dible click should be heard.
Nozzle 1. Remove the nozzle cover as described above.
2. Grasp the outside of the lens with both hands so that both thumbs can push
the latches inward and downward.
3. To install, verify that the nozzle o-ring is free from debris and install the o-
ring onto the nozzle.
4. Apply Christolube lubricant, SPERIAN P/N 910452, or equivalent, to o-ring.
5. From the inside of the lens, align the top and bottom ribs on the front of the
nozzle with the notches in the lens.
6. Push the nozzle inward until both latches engage the lens. An audible click
should be heard.
7. Inspect the installed nozzle o-ring for proper installation and seal. If the o-
ring appears twisted, pinched, or extruding out of the o-ring groove, remove
the nozzle, relubricate the o-ring, and reinstall the nozzle.
8. Install the nozzle cover as described above.
Nozzle Adapter 1. Slightly rotate the Adapter clockwise (tightening) to allow the latch to spring
up and down freely.
2. From the inside of the mask, locate the word “PUSH” on the Adapter latch.
Push the latch down and unscrew the Adapter from the Nozzle.
3. Install a new front (small) and rear (large) o-ring onto the Adapter.
4. Apply Christolube lubricant, SPERIAN P/N 910452, or equivalent, to the
larger rear o-ring.
5. Screw the Adapter back into the nozzle until an audible click is heard.