Pressure Vessel Regulations; Airtightness Test; Suggested Preventive Maintenance Schedule - Sahara -Pak HC-1260 Instruction Manual

INSTRUCTION MANUAL
Model HC

2.0.4 Pressure Vessel Regulations

Never weld on, or alter, a pressure vessel in any way.
The pressure vessels are designed according to the standard technical
requirements. They fulfill the test of the certifying procedure and carry
the "U" or "UM" ASME Symbol.

2.0.5 Airtightness Test

All HC dryers are subjected to an airtightness test prior to shipment using
compressed air and soap solution. System should be re-tested after
installation to ensure system integrity and joints are sealed.
2.1 Maintenance

2.1.1 Suggested Preventive Maintenance Schedule

The HC dryer requires a minimum of maintenance as most components
are "maintenance-free"; however, a certain amount of "preventive
maintenance" is recommended to assure years of trouble-free, high-
performance service.
Whereas it is recommended that the dryer be observed and inspected as
often as it is practical, the following is a minimum requirement:
2.1.1.1
Reference 219
Page 25 of 46
EVERY 2000 HOURS OR 3 MONTHS
1. Check the inlet air temperature; make adjustments, if
necessary.
2. Check the air temperature at aftercooler outlet; above
100F means:
a. Increase the cooling water flow.
b. Lower the cooling water temperature.
c. Back flush and thoroughly clean the aftercooler, to
restore efficiency.
Rev 2
06/20/2013