Table of Contents
Advertisement
Six Months
Timer
Accuracy should be verified according to API specs every six months. There are no
provisions for adjusting the timer provided with the instrument. Review your API specs for
details.
Air Operated Valve
1. Relieve system pressure. Remove the valve from the system and place it securely in a
vice.
2. Fully open the valve stem.
3. Remove the packing gland locking device.
4. Unscrew the packing gland and remove the packing gland and stem.
5. Remove the packing from the body. Note the packing and washer arrangement.
6. Replace the packing and place the packing and packing washers into the valve body.
7. Replace the stem and packing gland, tightening to the appropriate torque.
8. Replace the packing gland locking device.
Annually
Replace the high-pressure filter, cylinder pressure release valve, and rupture disk.
Pump
Chandler Engineering recommends that the pump valve body be disassembled, cleaned and
rebuilt by our service department.
Reservoir
Chandler Engineering recommends that the reservoir be removed, cleaned out, and flushed
by our service department.
Heater
Chandler Engineering recommends that the heater be inspected and tested for insulation
breakdown and voltage leakage, which can lead to arcing on the cylinder wall. This
procedure requires the use of specialized test equipment. Insulation breakdown poses two
potentially hazardous conditions: electrical shock hazard to the operator and pitting of the
cylinder at the point of arcing. Chandler highly recommends that our service department
perform a series of tests on the heater at this time interval.
Thermocouples (Slurry Cup and Cylinder) and Temperature Controller
Our service department can perform a calibration procedure using specialized
instrumentation to assure that temperature drift and inaccuracies as a result of time and usage
are compensated for in order to keep your instrument compliant with API specs.
SECTION 3 – MAINTENANCE
3-5
Advertisement
Table of Contents
