WARNING
4.8.2 Safety valve control
The final safety valve protects the 3rd stage and the high-pressure cylinders and is factory set to 10%
above the requested filling pressure. The safety valve of the 3rd stage must be checked for proper
functioning periodically. Pump unit to final pressure, with filling valve closed, until safety valve
releases. Blow-off pressure of the safety valve to be checked on pressure gauge, then open filling
valve.
4.8.3 V-belt adjustment
Visually check V-belt upon startup for proper tension and then
physically check at 10, 30 and 120 operating hours. Maximum
give at the middle between the pulley’s should not exceed 10 mm
when subject to a pressure of 5 kg. To adjust belt tension loosen
the jamb nut, adjust tension bolt and re-tighten jamb nut.
4.8.4 Intake filter
Check every 25 operating hours. The 5 micron filter cartridge (air intake cartridge) must be changed
after having it turned 3 times by 90
o
.
Cleaning:
only wipe out with damp cloth. DO NOT blow air inside filter case. Check O-ring in the filter
case and make sure that the holding spring, on top, is installed properly. Only use original cartridges.
4.8.5 Condensate drain system
Condensate = water/oil vapors = emulsion
The color of this emulsion should be milky-white; traces of brown discoloration are acceptable. If the
emulsion suddenly turns dark brown and smells, stop the unit and check oil level. If oil level is okay,
check for adequate, cool air circulation around the unit.
CAUTION
Drain off the condensate every 8-10 minutes for manual drain units.
For automatic drain units with preset drain timing, make sure the automatic condensate drain is
working and drain time, frequency and duration is adequate for your climate.
CAUTION
4.8.6 Activated carbon cartridge, replacement intervals
The cartridge must be changed before air starts to reek of oil. The quality of breathing air depends to
a large extent on the condition of the cartridge. For this reason, it is important to keep strictly to the
replacement intervals of 12 operating hours for the average size cylinder. The replacement intervals
will vary depending on the climate you are operating in (i.e.. rain, excessive moisture and humidity).
This purifier cartridge LF-1002 is rated for 10,000 cft @ 72
o
F air intake temperature, draining the
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