Table 1 - Troubleshooting Guide - Apeks XTX200 Maintenance Manual

Table 1 - Troubleshooting Guide

SYMPTOM
Leakage or freeflow from XTX
Second Stage
Low purge or excessive work of
breathing (full cylinder)
Water entering XTX Second Stage
XTX Second Stage Regulator Maintenance Manual
POSSIBLE CAUSE
1. Excessively high first-stage intermediate
pressure.
2. Rubber Seating (36) damaged or worn.
3. Seat (15) adjusted incorrectly, Lever (23)
set too high.
4. Lever (20) bent.
5. Seat (15) sealing surface damaged.
6. Valve Spring (33) damaged.
7. Shuttle Valve 'O' Ring (34) damaged.
8. Counter Balance Cylinder (32) bore dam-
aged.
9. Venturi Lever 'O' Ring (9) damaged.
1. Low first-stage intermediate pressure.
2. Seat (15) adjusted incorrectly, Lever (20)
set too low.
3. Intermediate pressure hose clogged or
obstructed.
4. Lever (20) bent or catching on Valve
Spindle (18).
5. Spindle Collar (17) incorrectly positioned
on Valve Spindle (18).
1. Mouthpiece (12) damaged or incorrectly
fitted.
2. Diaphragm (4) damaged.
3. Diaphragm (4) improperly seated in Case
(25).
4. Exhaust Valve (25) damaged.
5. Case (24) damaged. (Check exhaust
valve seating surface.)
6. Heat exchanger 'O' Ring (7) damaged.
7. Venturi Lever or Blanking Piece 'O' Ring
(9) damaged.
18
TREATMENT
1. Refer to first-stage
Troubleshooting Guide.
2. Replace Rubber Seating.
3. Reset Seat preliminary
settings, and repeat Adjustment
Procedures.
4. Replace Lever.
5. Replace Valve Seat.
6. Replace Spring.
7. Replace 'O' Ring.
8. Replace Counter Balance
cylinder.
9. Replace 'O' Ring.
1. Refer to first-stage
Troubleshooting Guide.
2. Reset Seat preliminary
settings, and repeat Adjustment
Procedures.
3. Clean or replace Hose.
4. Replace Lever.
5. Rotate Spindle Collar to correct
position.
1. Replace or re-fit Mouthpiece as
appropriate.
2. Replace Diaphragm.
3. Remove Front Cover (4) and
Diaphragm Cover (5) properly
reassemble Diaphragm (check
for distortion).
4. Replace Exhaust Valve.
5. Disassemble and replace Case.
6. Replace 'O' Ring.
7. Replace 'O' Ring.