Service kits available, Operation, Service procedure – Wilkerson SM2 User Manual
Page 2

SM1 & SM2 Coalescing Filter
83-947-000
Service Kits Available
Description
SM1
SM2
Auto Drain
—
SRP-96-027
Auto Pulse Drain
RK504SY-SS
—
Element (.3 Micron)
SRP-96-005
SRP-96-006
Manual Drain
SAP05481
SAP05481
Sight Glass
—
SRP-96-026
SM1 Coalescing Filter
with Auto Pulse Drain
SM2 Coalescing Filter
with Sight Gauge
Operation
1. Both free moisture and solids are removed automatically by the
filter.
2. Manual drain filters must be drained regularly before the
separated moisture and oil reaches the bottom of the baffle or
end cap.
3. The filter element should be removed and replaced when
pressure differential across the filter is 69 kPa (10 psig).
Service Procedure
Caution: Shut off air supply and exhaust the pressure
trapped within the filter bowl before servicing unit.
Caution: Touching or handling the new element section
may cause contamination, spotting, or migration of oil.
1. Unscrew and remove bowl.
2. Unscrew the filter holder from body and then remove element.
3. Clean all internal parts and bowl before reassembling.
4. The coalescing filter element should be removed and
replaced when pressure differential across the filter is 10
PSID. Differential gauges should be used to determine when
the maximum recommended pressure differential has been
reached.
5. Attach filter holder and finger tighten firmly.
6. Replace bowl seal. Lightly lubricate new seal to assist with
retaining it in position.
7. Install bowl into body and tighten; hand tight, plus 1/4 turn.
8. After servicing, apply system pressure and check for air leaks.
If leakage occurs, DO Not Operate — conduct servicing
again.
!
!
SM2 Metal Bowl
with Auto Drain
Lightly grease with provided lubricant.
Inspect for nicks, scratches, and surface imperfections.
If present, reduced service life is probable and future replacement
should be planned.
Clean with lint-free cloth.
O-Ring
Bowl
(Hand Tighten)
Auto Pulse Drain
(Finger Tight)
Element
Bowl Seal
Element
O-Ring
Bowl Seal
Manual Drain
Bowl
(Hand Tighten)
Filter Body
Filter Body
O-Ring
Auto Drain
(SM2 Only)
(Finger Tight)
O-Rings
Bowl
Hand Tight
O-Rings
Seal Cap
Finger Tight
Cap Seal
Screw
Torque .56 to 1.13 Nm
(5 to 10 in. lb.)
Screw
Torque .56 to 1.13 Nm
(5 to 10 in. lb.)
Sight Glass
Bowl
Hand Tight