Oceanic EOS, Service Procedure

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EOS SERVICE PROCEDURE 12-2810-R02 (10/3/10)
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3
TROUBLESHOOTING
Free flow or leak present with
Adjustment Knob (20) turned fully
out counterclockwise.
1.
Demand Lever (28) bent.
2.
Excessive intermediate pressure.
3.
Damaged or worn Poppet Seat (30) .
4.
Damaged Orifice (26) .
5.
Orifice (26) incorrectly adjusted.
6.
LP Hose (39) not tightened onto Valve
Housing (27 or 44) inlet tube.
7.
Trapped sand or debris.
8.
Score inside sealing surface of
Adjustment Tube (11) .
9.
Weak or damaged Poppet Spring (15) .
1.
Replace Demand Lever (28) .
2.
Readjust IP of 1
st
stage to
specification.
3.
Replace Poppet Seat (30) .
4.
Replace Orifice (26) .
5.
Readjust Orifice (26) (refer to Final
Adjustment section).
6.
Torque LP Hose (39) to
specification.
7.
Remove sand or debris and clean.
8.
Replace Adjustment Tube (11) .
9.
Replace Adjustment Spring (15) .
Excessive inhalation effort with
Adjustment Knob (20) turned fully
out counterclockwise.
1. Demand Lever (28) bent.
2. Orifice (26) incorrectly adjusted.
3. Insufficient Intermediate Pressure from
1
st
stage.
1. Replace Demand Lever (28) .
2. Readjust Orifice (26) (refer to Final
Adjustment section).
3. Readjust IP of 1
st
stage to
specification.
Rattle noise heard inside second
stage.
1. Gravel or sand trapped inside Housing
(6) .
2. Excessive Demand Lever (28) slack.
1. Remove and clean.
2. Readjust Orifice (26) (refer to Final
Adjustment section).
Little or no airflow when purge is
depressed.
1. Front Cover Ring (1) not tightened
correctly.
2. Excessive Demand Lever (28) slack.
3. Orifice (26) incorrectly adjusted.
1. Tighten Front Cover Ring (1) until
secure.
2. Readjust Orifice (26) (refer to Final
Adjustment section).
3. Readjust Orifice (26) (refer to Final
Adjustment section).
Adjustment Knob (20) difficult to
turn.
1. Debris or corrosion present on
Adjustment Shaft (17) .
2. Debris present inside Adjustment Knob
(20) .
3. Spring Follower (16) damaged or cross
threaded.
4. Poppet Spring (15) damaged or
corrosion present.
1. Disassemble and clean.
2. Flush out or disassemble to clean.
3. Replace Spring Follower (16) .
4. Clean or replace Poppet Spring
(15) .
Water entering second stage.
1. Hole or tear in Mouthpiece (8) .
2. Exhaust Valve (9) damaged or
deformed.
3. Diaphragm (5) damaged or deformed.
4. Debris trapped beneath Exhaust Valve
(9) or Diaphragm (5) .
5. Front Cover Ring (1) not tightened onto
Housing (6) .
6. Damaged Venturi Switch O‐ring (34) .
7. Cracked or damaged Housing (6) .
8. Mouthpiece Tie Wrap loose or missing.
1. Replace Mouthpiece (8) .
2. Replace Exhaust Valve (9) .
3. Replace Diaphragm (5) .
4. Remove and clean.
5. Tighten until secure.
6. Remove Venturi Switch (35) and
replace O‐ring (34) .
7. Replace Housing (6) .
8. Tighten or replace.
SYMPTOM POSSIBLE CAUSE TREATMENT