(5) Open clamp (13) and remove the
valve faces toward engine and elbow
moisture separator assembly (12) and
faces toward fan.
clamp from frame.
(4) Screw adapter (10) with packing (9) in
b.
Installation
the port at the top center of moisture
separator (12).
(1) Position moisture separator (12, fig. 2-
(5) Install elbow (6) with packing (9),
1) on frame and place clamp (13) on
backup washer (8), and nut (7) into the
loosely.
port on the side of moisture separator
(2) Install and tighten washer (17) and nut
(12).
(16). Screw on valve (15) and fitting
(6) Install elbow (18) and tube assembly
(14) at bottom of moisture separator.
(5).
Tighten clamp (13); position
(3) Screw pressure relief valve (11) with
clamp (1) over tube assembly on
packing (9) into the port on the side of
bracket (3) and secure to the bracket
moisture separator (12). Note. Make
with screw (2) and nut (4).
sure moisture separator pressure relief
Section II. FAN, FAN GUARD, AND AFTERCOOLER GROUP
2-4.
Description and Function
component in this section while the unit is in
operation.
The fan, fan guard, and aftercooler group
consists of the fan, fan guard, aftercooler, the second-to-
a.
Disassembly
third stage tube assembly, first-to second stage tube
assembly, attaching clamps, and brackets. The fan
(1) Unscrew and remove flared tube nut
consists of 10 vanes shaped in such a manner that in
connecting aftercooler (5, fig. 2-2) to
rotation of the fan, air is propelled over the compressor.
third stage reducer (1, fig. 2-3).
When positioned and mounted on the basic compressor,
(2) Remove three screws (1, fig. 2-2) and
the fan serves to move cooling air in and around the
lockwashers (2) attaching instruction
aftercooler, and the fan guard prevents external
plate (3) to guard (4).
Remove
interference with the rotation of the fan providing
instruction plate.
protection to both maintenance personnel and the fan.
(3) If moisture separator tube assembly
The aftercooler is corrosive-resistant steel tubing with tin-
has not been removed, unscrew tube
coated, low carbon steel fins soldered to the tubing. The
(5, fig.
2-1) from aftercooler and
aftercooler is positioned around the fan and serves to
moisture separator.
Remove screw
cool the compressed air.
The moisture in the
(2) and nut (4) attaching clamp (1) to
compressed air is condensed by the cooling. The
bracket (3) and remove tube.
moisture is separated from the compressed air by the
(4) Remove screws (17, fig. 2-2) and
moisture separator.
lockwashers (16). Remove fan guard
(4) with attached aftercooler (5) from
2-5.
Maintenance
the compressor.
(5) Remove screws (8), lockwashers (7),
Direct support maintenance personnel are
and clamps (6) from fan guard (4) and
authorized to replace the fan, fan guard, aftercooler,
remove aftercooler (5) from fan guard.
thrust washer, both tube assemblies, clamps, and
(6) Remove screw (14) and attaching
attaching hardware.
clamp (15) from frame.
Remove
clamp from over second-to-third stage
Warning. To prevent injury to personnel and
tube assembly (13).
damage to equipment, do not attempt removal of any
(7) Loosen flared tube nuts and remove 7
7
