TM 5-4310-376-14
4-17(A) UNLOADER ASSEMBLY (Cont.)
LOCATION/ITEM
ACTION
REMARKS
c.
The differential (difference
Adjust screw (3) so that
between cut-in and cut-out
compressor comes on to
pressure) is obtained by
compression at 175 PSI
adjusting screw (3). Turning
(At this stage compressor
clockwise will widen the
starts pumping air into
differential and counter-
receiver.)
clockwise will narrow the
differential.
d.
Repeat items 1 & 2 until desired
Cut-off pressure should
be 195 PSI and cut-in
settings are obtained. It is
pressure should be 175
not advisable to have a
PSI.
differential of less than
10% of the maximum cut-out
pressure.
Hold nut (1) while tighten-
e.
After adjustments are made,
tighten jam nuts (2) & (4)
ing (2) and nut (3) while
tightening (4) to have the
correct adjustment.
NOTE
If you cannot get proper adjustment (cut-off pressure = 195 PSI and cut-in
pressure = 175 PSI) then refer to Para. 4-18.
4-34.1/(4-34.2
blank)
Change 1
*U.S. GOVERNMENT PRINTING OFFICE: 1987754-030/60054
