Apeks XTX40 - TROUBLESHOOTING GUIDE

18
XTX Second Stage Regulator Maintenance Manual
Table 1 - Troubleshooting Guide
SYMPTOM POSSIBLE CAUSE TREATMENT
Leakage or freeow from XTX
Second Stage
1. Excessively high rst-stage intermediate
pressure.
1. Refer to rst-stage
Troubleshooting Guide.
2. Rubber Seating (36) damaged or worn. 2. Replace Rubber Seating.
3. Seat (15) adjusted incorrectly, Lever (23)
set too high.
3. Reset Seat preliminary
settings, and repeat Adjustment
Procedures.
4. Lever (20) bent. 4. Replace Lever.
5. Seat (15) sealing surface damaged. 5. Replace Valve Seat.
6. Valve Spring (33) damaged. 6. Replace Spring.
7. Shuttle Valve ‘O’ Ring (34) damaged. 7. Replace ‘O’ Ring.
8. Counter Balance Cylinder (32) bore dam-
aged.
8. Replace Counter Balance
cylinder.
9. Venturi Lever ‘O’ Ring (9) damaged. 9. Replace ‘O’ Ring.
Low purge or excessive work of
breathing (full cylinder)
1. Low rst-stage intermediate pressure.
1. Refer to rst-stage
Troubleshooting Guide.
2. Seat (15) adjusted incorrectly, Lever (20)
set too low.
2. Reset Seat preliminary
settings, and repeat Adjustment
Procedures.
3. Intermediate pressure hose clogged or
obstructed.
3. Clean or replace Hose.
4. Lever (20) bent or catching on Valve
Spindle (18).
4. Replace Lever.
5. Spindle Collar (17) incorrectly positioned
on Valve Spindle (18).
5. Rotate Spindle Collar to correct
position.
Water entering XTX Second Stage
1. Mouthpiece (12) damaged or incorrectly
tted.
1. Replace or re-t Mouthpiece as
appropriate.
2. Diaphragm (4) damaged. 2. Replace Diaphragm.
3. Diaphragm (4) improperly seated in Case
(25).
3. Remove Front Cover (4) and
Diaphragm Cover (5) properly
reassemble Diaphragm (check
for distortion).
4. Exhaust Valve (25) damaged. 4. Replace Exhaust Valve.
5. Case (24) damaged. (Check exhaust
valve seating surface.)
5. Disassemble and replace Case.
6. Heat exchanger ‘O’ Ring (7) damaged. 6. Replace ‘O’ Ring.
7. Venturi Lever or Blanking Piece ‘O’ Ring
(9) damaged.
7. Replace ‘O’ Ring.