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VILTER MANUFACTURING CORPORATION
VILTER MultiCylinder Compressor
400 Series VMC 2/01
SERVICE - 27 - Replaces all Previous Issues
MODIFICATION TO FRONT BEARING RETAINER AND FRONT BEARING COVER
AFTER COMPRESSOR SERIAL NUMBER 21354
440 COMPRESSOR ONLY
Compressors below serial number 21355 were
furnished with the front bearing cover assemblies
A30294A (no longer available) for 2, 4, 6 and 8
cylinders, A32162A for 12 and 16 cylinders; front
bearing retainer 38115A for 2, 4, 6 and 8 cylin-
ders; or 33500A for 12 and 16 cylinders (without
the oil hole). Former front bearing retainers
(31885A or 33500A) without oil holes cannot be
used with current bearing cover assemblies
A36240A and A36241A. There is no provision
for oil to get to the bearings.
If front bearing cover is being replaced, a current
front bearing retainer must be ordered also, un-
less one of these current styles is already being
used. If a current front bearing retainer is used
with former style cover having an oil hole, re-
move orifice in cover and replace with solid
1
/
8
”
(3.2 mm) flush pipe plug.
SEE SKETCH BELOW FOR LOCATION AND DESCRIPTION
OF OIL HOLE IN CURRENT BEARING RETAINER.
FIGURE 16. RETAINER PARTIAL VERTICAL CROSS SECTION
“TOP” STAMPED ON
THIS SURFACE.
45°
OIL HOLE –
3
/
16
” DIA. ¼” DEEP
0.041” DIA. THRU
ON VERTICAL
CENTERLINE