(2) Install elbow (15) in outlet port of pump
valve lever is in VALVE OPEN position.
If
further
and brake assembly after wrapping threads with Teflon
adjustment is required, repeat portions of steps 5, 6, and
tape per MILT-27730. Attach high pressure hose (14) as
7, preceding, as required.
instructed in paragraph 5-6. Orient elbow to provide the
(9) When lever is properly adjusted,
least possible amount of bending, kinking, or twisting of
disconnect valve rod (15, fig. 4-10) from lever. Secure
the hose.
attaching parts to lever. Lay end of valve rod in drip pan,
(3) Attach inlet hose (13) to inlet port of pump
and fold control panel to its retracted position.
Note:
and brake assembly, and secure with hose clamps (12).
(4) Connect brake cable assembly (11) by
Control panel must be in retracted position
attaching the pump link (8) to the brake actuation lever.
before loading sprayer into helicopter.
Use clevis pin (3), washer (2), and cotter pin (1) to
secure parts.
5-10.
Liquid Loading Tube
Note:
5-9. Control Valve Assembly
To gain access to components, consider
tilting tank installation and removing drip pan
Note:
a. Removal. Remove liquid loading tube from tank
To gain access to components, consider
tilting tank installation and remove drip pan
installation using figure 4-9, and the following steps as
guides:
a. Removal.
Remove control valve assembly
(1) Loosen hose clamps (29) and hose (30)
(47, fig. 4-9) as follows:
connecting liquid loading tube (41) to sump (34).
(1) Remove cotter pin, washer, and clevis pin
(2) Remove four nuts (37), washers (38),
(10, 11, and 12, fig. 4-10), securing valve rod (15) to
screws (39) and spacers (40) securing liquid loading
control lever of valve assembly.
tube to tank support assembly (133).
(2) Unscrew end fittings of high-pressure
(3) Remove liquid loading tube.
hoses (14 and 42, fig. 4-9) from valve connectors.
(4) If required, remove valved nipple (36) with
(3) Remove nuts (43), washers (44), and
dust cap (35) from liquid loading tube.
b. Installation. Install liquid loading tube to tank
bolts (45) attaching control valve assembly to bypass
valve assembly (52).
installation using figure 4-9 and the following steps as
(4) Remove control valve assembly and
guides:
gasket (46) from sprayer system.
(1) Place liquid loading tube (41) into position
b. Installation. Install control valve assembly as
through opening in tank support assembly (133) under
follows:
tank assembly (125).
(1) Place gasket (46) on flange of bypass
(2) Using procedure of paragraph 4-15, step
e (2) for installing low-pressure hoses, insert end of liquid
valve assembly (72). Attach control valve assembly to
bypass valve assembly, and secure with bolts (45),
loading tube into low-pressure hose (30) attached to
washers (44), and nuts (43).
sump (34). Secure with hose clamps (29).
(2) Attach high-pressure hoses (14 and 42) to
Note:
control valve assembly (ref para 5-6).
if drip pan was removed, replace drip pan as
(3) Place manual control panel (58) in
instructed in paragraph 5-7, step c.
extended position.
(3) Line up attachment holes in mounting
(4) Turn handle of valve lever (17, fig.
4-
flange of liquid loading tube with holes in lower channel
10) all the way in (clockwise).
of tank support assembly (133). Place spacers (40)
(5) Place valve control lever in closed
between sides of tank support channels and in line with
position. Loosen nut (1, fig. 8-1) to loosen lever (4) on
mounting holes. Insert screws (39) through drip pan,
shaft of valve ball (38).
channel, spacers, and mounting flange of liquid loading
(6) With valve lever (17, fig.
on
tube. Secure with washers (38) and nuts (37).
control panel in VALVE CLOSED position, connect valve
rod (15) to valve lever (4, fig. 8-1). Turn lever as needed
5-11.
Pump Inlet Tube
to properly align parts. Secure lever clevis (14, fig. 4-
Note:
10) on valve rod to valve lever with clevis pin, washer,
To gain access to components, consider
and cotter pin (12, 11, and 10, fig.
tilting tank installation and removing drip pan
(7) Secure nut (1, fig. 8-1) on lever (4).
(8) Test valve for actuation and proper adjustment by
a. Removal. Remove pump inlet tube from tank
actuating valve lever (17, fig. 4-10) several times.
installation using figure 4-9, and the following steps as
Valve must be in closed position when valve lever is
guides:
in VALVE CLOSED position, and in open position when
5-3
