Apeks Flight Manual page 8

table 1 - troubleshooting guide
SyMptoM poSSiBLe CAuSe
1. hp valve (16) is worn or damaged.
2. 'o' ring inside hp Balance Chamber
(18) is damaged or worn.
high pressure Creep
(also causes second stage leaks)
3. h.p balance chamber damaged
4. hp valve Seat in valve Body (9) is worn
or damaged.
1. Blanking plug 'o' rings (12,14) are
worn or damaged.
2. diaphragm (6) worn or damaged.
3. diaphragm seating surface
damaged.
external air leakage
4. Connector 'o' ring (20) worn or
damaged.
5. diaphragm Clamp (4) loose.
6. 'o' rings on din Bolt (14,25) worn or
damaged.
1. Cylinder valve not completely open.
2. Cylinder valve requires servicing
restricted air flow or high inhalation
resistance through entire system
3. din Filter (23) or disc Filter (27) is
blocked.
4. very Low Medium pressure.
FLIGHT First Stage Regulator Maintenance Manual
treAtMent
1. replace hp valve.
5. replace 'o' ring.
6. replace balance chamber
7. replace valve Body.
1. replace 'o' ring.
2. replace diaphragm.
3. replace valve Body (9).
4. replace 'o' ring.
5. tighten diaphragm Clamp to
specified torque.
6. replace 'o' rings.
1. open valve, check fill pressure.
2. Switch to different cylinder.
3. replace filter.
4. Adjust Medium pressure to
between 9 and 10 bar.
14
table 2 - recommended tool List
pArt no. deSCription
Ap0430 i.p. test gauge
At79
'o' ring removal pick
At71 diaphragm Clamp tool
At48 First Stage Work handle
At24 Circlip pliers
n/a torque wrench, nm or lbf/ft
n/a 6mm Allen key bit for torque wrench
At34 11/16" spanner
At37 5mm Allen key
At38 6mm Allen key
n/a 10mm Allen key
n/a 22mm deep Socket
At74 yoke Connector Socket
n/a 22mm Spanner
n/a 232 or 300 bar diving cylinder
At79
Ap0430
At24 At34
6mm Allen Key Bit
At74
FLIGHT First Stage Regulator Maintenance Manual
AppLiCAtion
intermediate pressure testing
'o' ring removal
removal of Composite diaphragm Clamp
Clamping valve Body in vice
removal and installation of Circlip
installation of Composite diaphragm Clamp, din
Connection and yoke Connection
installation of din Bolt and yoke Connector
hose removal
Blanking plugs
removal of din Bolt
removal and installation of Large Spring Adjuster
removal and installation of din Connector
removal and installation of yoke Connector
removal din Connector
testing of regulator
At71
At38
At37
notes:
1. photos not to scale.
2. Actual tools may differ
from photos.
15
At48