MSA GA74H60-BQXXL, Руководство по обслуживанию, Страница: 22 / 23

Maintenance manual
MSA, Châtillon sur Chalaronne • Tél. +33 (0)474 55 01 55 •
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21
PM and GM inner visor assembly
Zones on inner visor:
Zone Defects Criteria Action
Zone 1
Spots of paint Ø 0.1 mm Quantity > 3 Replace part
Spots of paint Ø > 0.1 mm Quantity = 0 Replace part
Scratches: length < 5 mm,
depth < 0.05 mm
Quantity > 8 Replace part
Zones 2 and 3
Spots of paint 0.1 mm < Ø < 0.2 mm
or Black spots 0.1 mm < Ø < 0.2
mm
or Scratches: length < 5 mm;
depth < 0.05 mm
Quantity > 5 Replace part
Quantity = 2 Replace part
Quantity >
16
Replace part
Zone 4 All None
Sub-elements Defects Criteria Action
Velcro hooks
Coming apart Minor Nothing to report
Coming apart Major Replace part
Lateral interfaces
Riveting
Excessive
play or
missing Replace part
Lateral interface Breakage Defective Replace part
Inner visor rotation tests
It must be possible to rotate the visor using either of the knobs with one hand
(thumb/index finger).
N.B.: The two screws holding in place the inner visor controls should be tightened 1/8
turn from
when the tightening stress increases, with the 2 mm hex screwdriver.