Sullair LS-25S, Operator'S Manual And Parts List

Page: 34 / 104

Section 6
MAINTENANCE
29
check the secondary element for visible dirt,
grease or damage. The secondary element must
be changed after every sixth primary element in-
spection. DO NOT clean the secondary element.
ELEMENT REMOVAL
1. Clean the exterior of the air filter housing.
2. Remove the cover assembly by loosening the
wingnut securing it.
3. Pull the element assembly out of the housing.
4. Clean the interior of the housing by using a
damp cloth.
DO NOT
blow dirt out with com-
pressed air.
5. Inspect the secondary element and replace if
necessary. This element is not cleanable.
6. To remove the secondary element, remove the
hex nut and sealing washer from the threaded
rod running through the element and pull the
element out of the housing.
7. Install the new secondary element and replace
the sealing washer and hex nut.
8. With the secondary element in place, replace the
primary element.
ELEMENT INSPECTION
1. Place a bright light inside the element to inspect
for damage or leak holes. Concentrated light will
shine through the element and disclose any
holes.
2. Inspect all gaskets and gasket contact surfaces
of the housing. Should faulty gaskets be evi-
dent, correct the condition immediately.
3. If the clean element is to be stored for later use, it
must be stored in a clean container.
4. After the element has been installed, inspect and
tighten all air inlet connections prior to resuming
operation.
PRIMARY ELEMENT REPLACEMENT
1. Place the element in position over secondary
element. Replace the sealing washer and
wingnut. Tighten the wingnut so as to fully seat
the element gasket.
2. Install the cover/element assembly and replace
the wingnut.
SEPARATOR ELEMENTS REPLACEMENT
Ref er to Figur e 6 --- 3 . The s epar ator el ements must
be changed when “Separator Maintenance Re-
quired” message is displayed, or once a year
whichever occurs first. Order separator elements,
number 250034---124 (primary) and number
250034---130 (secondary). Follow the procedure
explained below for separator element replace-
ment.
1. Relieve all pressure from the separator and all
compressor lines.
2. Disconnect all piping connected to the separator
cover (return lines, service lines, etc.) to allow re-
moval.
3. Loosen and remove the twelve (12)
# @ 4
” x 3” hex
head capscrews from the cover plate.
4. Lift the cover plate from the separator.
5. Remove the primary and secondary separator
elements.
6. Scrape the old gasket material from the cover
and flange on the sump being careful not to let
the scraps fall into the sump.
7. Inspect the receiver/sump tank for rust, dirt, etc.
Figure 6---3 Separator Element Replacement
** Replacement element P/N 250034---130 --- secondary
* Replacement element P/N 250034---124 --- primary
(P/N 250034---123 --- primary)
(P/N 250034---129 --- secondary)