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6.1
PRESSURE REGULATiON
ADJUSTMENT
Book 35386598, 8192
,
3.
Atop separator cover at pressure regulator (PR) loosen locknut (G)
counterclockwise.
Tum adjustment
cap
(H) and locknut (G) coun-
terclockwise to remove from valve. Replace adjustment cap assem-
bly (G & H) tuming clockwise two full revolutions.
After Starting Unit
4.
Allow unit to warm up, then push "Service Air" button on control panel.
5.
Open and adjust service valve on outside of the unit to obtain the rated
operating pressure" on the discharge pressure gauge.
NOTE: If the rated operating pressure' cannot be maintained with engine at
full load speed' and rod (M) fully extended, tum regulator adjustment
cap (H) clockwise until throttle arm (A) moves against governor stop ..
6.
Insure that pressure is maintained at rated pressure", then rum regulator
adjustment cap (H) counterclockwise
until throttle arm (A) just begins to
move.
NOTE: Turning regulator adjustment
cap
(H) clockwise will raise pressure at
full
speed.
7.
Adjust jam nut (0) on throttle spring rod (E) until distance "X" between
spring mount
(J)
and rod guide
(I<)
is 2.88 in. (73 mm).
8.
Close service valve (engine will slow to no load or idle speed'.
Loosen
jam nut (L) at air cylinder (AC) shaft. Rotate air cylinder shaft (M) to
ad-
just speed to no load rpm. If unable to obtain no load rpm, loosen nut (C)
and rotate throttle arm (A) as required. Moving throttle arm (A) clockwise
increases idle speed. Tighten nut (C) and, if necessary, finely adjust idle
speed by rotating air cylinder shaft (M). Then tighten jam nut (L) .
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