TB
5-4220-200-12-1
Table 4-3. TROUBLESHOOTING - ORGANIZATIONAL (CONT)
C. DIVER'S TANK BLOCK TROUBLESHOOTING INSTRUCTIONS (P/N 2800-00) (CONT)
d
ITEM
MALFUNCTION
NO.
PROBABLE CAUSE
CORRECTIVE ACTION
3
Air leak from tanks.
a. Manifold (fig. 4-4) (21) loose
a. Tighten manifold (21) as
appropriate.
b. O-Ring (fig. 4-4) (5) or (10)
b. Replace O-Ring (5) or (10)
damaged.
as appropriate. (Section III,
4
No reserve air supply.
a. Reserve stem (fig. 4-4) (18) worn
a. Replace reserve stem (18),
or damaged.
(Section VI. para 4-17b).
b. Reserve bonnet (fig. 4-4) (13)
b. Replace reserve bonnet (13),
damaged.
(Section VI, para 4-17b).
c. Reserve assembly (fig. 4-4) (20)
c. Replace reserve assembly (20).
damaged.
(Section VI, para 4-17b).
5
Reserve lever
a. Reserve bonnet (fig. 4-4) (13)
a. Replace reserve bonnet (13).
inoperative.
damaged.
(Section VI, para 4-17b).
b. Reserve stem (fig. 4-4) (18)
b. Tighten or replace reserve
loose or damaged.
stem (18). (Section VI,
Air leak from reserve
6
a. Replace reserve gasket (16),
lever.
damaged.
(Section VI, para 4-17b).
b. Reserve O-Ring (fig. 4-4) (15)
b. Replace reserve O-Ring (15)
damaged.
(Section VI, para 4-17b).
c. Reserve back-up ring (fig. 4-4)
c. Replace reserve back-up
(14) damaged.
ring (14), (Section VI,
