DH Instruments PPC2 AF - Self Purging Liquid Trap (Splt); Maintenance; Repair; Overhaul

5. MAINTENANCE, ADJUSTMENTS AND CALIBRATION
Page 81 © 1998 DH Instruments, Inc.
5.1.4 SELF PURGING LIQUID TRAP (SPLT)
5.1.4.1 MAINTENANCE
The maintenance of the SPLT consists of cleaning or replacing the internal
coalescing filter. A dirty filter should be rinsed with a degreasing agent to remove
oil and particulate matter. A filter with physical damage should be replaced.
Removing and Installing the SPLT Filter
See Section 5.1.5 for part number and figures referred to in the filter
replacement procedure.
See Figure .10.
Remove power and pressure connections prior to disassembly.
1. Disconnect pressure tubing to the SPLT.
2. Disconnect power leads to the solenoid.
3. Remove 2 screws on top of bracket (102530).
4. Unscrew top of SPLT (102501).
5. Remove filter; clean cavity (102502).
6. Install new filter.
7. Re-assemble SPLT.
5.1.4.2 REPAIR
5.1.4.2.1 SPLT Exhaust Valve Removal and Replacement
See Figure .10
1. Disconnect pressure tubing to the SPLT.
2. Disconnect power leads to the solenoid valve (102514).
3. Remove solenoid valve from SPLT body (102502).
4. Remove fittings (102516, 100321) and drain tube (101392-Z) from solenoid
valve.
5. Install fittings (102516, 100321) and drain tube (101392-Z) onto new solenoid
valve.
6. Reinstall solenoid valve onto SPLT body (101502).
5.1.4.3 OVERHAUL
Any or all of the following items may be included as part of SPLT maintenance
overhaul:
1. Clean or change filter (see Section 5.1.4.1).
2. Clean internal portions of SPLT body using a degreasing agent.
3. Check solenoid power leads.
4. Check tightness of fittings on SPLT exhaust solenoid valve.
5. Check drain tube and replace as necessary.