Filter Element Replacement - Ingersoll Rand HRD Serie Manuel De Instrucciones

Figure 6
DESICCANT DRAIN/FILL PORTS
(Side View of Dryer)
DANGER
EXPLOSION HAZARD
Completely vent the internal air pressure to the
atmosphere before replacing the desiccant or
performing any maintenance work on your
dryer.
1. Depressurize dryer according to the shutdown in-
structions (page 1-10). Pressure gauges on both
vessels must indicate 0 psig before service contin-
ues.
2. Turn off power switch on control panel.
DANGER
SHOCK HAZARD
Portions of the electrical control circuit remain
energized when the power switch is turned
OFF. Disconnect the main power supply to the
dryer before performing maintenance on the
electrical system.
3. Disconnect the main power supply to the dryer.
4. Lock out and tag electrical power supply in accor-
dance with OSHA requirements.
1-12
5. Place large containers under drain outlets at bot-
tom of vessels to collect desiccant.
6. Remove desiccant drain plug (refer to Figure 6).
7. Tap sides of vessels with rubber mallet to loosen
desiccant.
8. Remove fill plug at top of each vessel.
9. Shine flashlight through fill port and inspect in-
side of vessels to be sure all desiccant is removed.
10. Replace desiccant drain plug.
11. Determine the type and amount of desiccant ac-
cording to Table 2, page 1-3.
CAUTION
Pouring desiccant creates a fine dust; safety
goggles, gloves and dust mask should be
worn by personnel installing desiccant. Refer
to the Material Safety Data Sheets (MSDS) on
page 1-21 for more complete information.
Do not tamp the desiccant in vessels. Tamping
damages desiccant and causes dusting.
12. Pour required desiccant into vessels through fill
ports. When two types of desiccant are used, add
the proper amount of activated alumina to each
desiccant vessel first; tap vessels with rubber mal-
let to ensure uniform distribution of desiccant,
then add the molecular sieve.
13. Replace fill plugs at top of vessels.
Restart the dryer according to the start-up instructions
on page 1-7.

Filter Element Replacement

Coalescing and particulate filters are included with all
HRD Series dryers. The filter elements should be re-
placed when the DP gauge on top of the filter reads 7
to 10 psid or once a year, whichever comes first. Refer
to Table 4 for the replacement element part numbers.
Replace elements in accordance with the following in-
structions.
Table 4
REPLACEMENT ELEMENTS
REPLACEMENT ELEMENT PART NO.
DRYER
MODEL
Coalescing Prefilter
NO.
(CHE Series)
HRD56 39240908
HRD100 39240916
HRD160 39240924
HRD200 39240932
Particulate Afterfilter
(PC Series)
39241104
39241112
39241138
39241146
HRD Series (Bulletin 348)