Servicing The Internal Float Drain Valve (If Equipped); Automatic Drain Valve (Adv) Disassembly And Servicing - Ingersoll Rand HRD Serie Manuel De Instrucciones

Dryer Models HRD1450 thru HRD3250
DANGER
Vent internal pressure to atmospheric
pressure before performing any maintenance.
1. Vent internal pressure to the atmosphere. Refer to
Shutdown instructions on page 1-10.
2. Disconnect drain lines at automatic drain valve (if
installed).
3. Remove bolts securing the filter top to the vessel.
4. Remove the filter top.
5. Remove the element retainer plate.
6. Remove the used element cartridges. Discard the
element in accordance with applicable regula-
tions. Used elements typically hold contaminants,
such as compressor lubricants and particulate mat-
ter.
7. Insert new element cartridges in filter.
8. Replace the element retainer plate.
9. Replace filter top.
10. Reinstall bolts to secure filter top.
11. Reattach drain lines (if applicable).
12. Record the date of the ele-
ment change in a record
book or on the provided
"Maintenance Reminder" la-
bel. A new element change
abel with the updated infor-
mation should be applied
over the previous label each
ime the element is replaced.
Restart the dryer according to the start-up instructions
on page 1-7.
Servicing The Internal Float Drain Valve (If
Equipped)
DANGER
Vent internal pressure to atmospheric
pressure before performing any maintenance.
1. Vent internal pressure to the atmosphere. Refer to
Shutdown instructions on page 1-10.
2. Disconnect drain lines and automatic drain valves
(if installed).
1-14
A "hissing" sound while the bowl is being
removed indicates the filter has not been
properly depressurized. DO NOT continue to
remove the bowl until the filter has been
completely vented to atmospheric pressure.
Filter bowls may be heavy. Take caution when
removing the bowl.
MAINTENANCE REMINDER
Do not use a pipe wrench to tighten the filter
AVISO DE MANTENIMIENTO
RAPPEL D'ENTRETIEN bowl to the head.
Date element changed:
Fecha de cambio:
Date de remplacement d'élément: ______________________________
Changed by:
Cambiado por:
Effectué par: __________________________________________________
l
Next scheduled change:
Fecha de el próximo cambio:
Prochain remplacement prévu: _________________________________
10. Reattach the drain line (if applicable).
Additional elements available from your local
Ingersoll-Rand Compressed Air System supplier.
Elementos adicionales disponibles de el distribuidor
de sistemas de aire comprimido Ingersoll-Rand mas cercano.
Les éléments sont disponibles chez votre distributeur local
Restart the dryer according to the start-up instructions
Ingersoll-Rand Compressed Air System.
______________________________________________________________ t
on page 1-7.
Telephone:
Teléfono:
Téléphone: ___________________________________________________
Fax:___________________________________________________________
Automatic Drain Valve (ADV) Disassembly
and Servicing
Dryer models HRD200 and larger have a timer-
controlled automatic drain valve.
Do not disassemble the ADV timer or attempt
to repair electrical parts. Replace timer if
defective.
The ADVs discharge condensate through a full-port
drain opening. The valve body may need to be cleaned
under conditions of gross particulate contamination.
To disassemble the ADV valve body for cleaning or
other maintenance (refer to Figure 7):
DANGER
CAUTION
3. Remove the bottom bowl by unscrewing it from
the head. A strap wrench may be needed.
4. Remove the nut from the bottom of the bowl.
5. Turn the bowl upside down. The float drain will
fall out.
6. Inspect the drain for damage. Replace if necessary
or clean with a mild soap and water. Do not use
solvents to clean the drain valve as they may dam-
age the valve.
7. Hold the bowl upright and drop in the new or
cleaned drain so that the drain stem is through the
hole at the bottom of the filter.
8. Replace the nut and hand tighten.
CAUTION
9. Reattach bowl to head and hand tighten.
CAUTION
1. Turn power switch off.
HRD Series (Bulletin 348)