Note:
(2) Install actuator (4) onto adjusting screw
(8), with raised surface toward adjusting nut (6). Screw
If synchromatic windmill assembly is not being installed
actuator onto adjusting nut until spoke ends are in line
on pump, secure parts together with bolt, washer, and
with lower surface of cap hub (9).
nut (23, 22, and 21, fig. 4-2)
placed
through
one
Note:
mounting hole.
g. Installation. Install the synchromatic windmill
Approximately 34 inches of thread will protrude
through the actuator.
assembly on the pump brake drum.
(3) Install hubs of blades (2) into cap hub (9) with
CAUTION
the retaining shoulder slots (10) of the blade hubs
Do not overtighten bolts. Blade adjustment may be
inserted over the spokes of the actuator (4).
The
restricted, and undue stresses may be applied to
blade hub retaining shoulder (11) should be fully seated
hub assemblies.
in the cap hub bearing slots.
(1) Place synchromatic windmill assembly
(4) With cap hub index aligned with base hub
against pump brake drum (2, fig. 7-2).
index, install base hub (3) onto cap hub assembly (1).
(2) Align holes and secure to brake drum with
three new bolts (20, fig. 4-2).
Section IX. MAINTENA NCE OF CONTROL SYSTEM
4-24.
Manual Control Panel
a. General. The manual control panel (fig.
4-
(4) Inspect pressure gage (21, fig.
10) with its attached components, comprises most of the
for condition and security of attachment.
Replace
control system. Maintenance procedures for the pump
gage if glass is broken, or if needle is bent or not at zero
brake cable are covered in paragraph 4-22. The control
with no pressure applied. Tighten coupling (18) to
panel is attached to the tank support by hinges and a
secure pressure gage in position, facing aft.
folding brace. This permits folding the control panel for
(5) Inspect instruction plates (26) for condition
installation and shipping.
The control panel may be
and security of attachment. Replace if missing, loose,
adjusted for installation into either the UH-1B or UH-1D
or if they cannot be read.
helicopters (refer to para 4-3).
Major components of
c. Disassembly. Remove components of control
the control panel include brake lever (16), valve lever
panel assembly as follows (fig.
(17), valve rod (15), pressure gage (21), and brake cable
(1) Levers. Remove cotter pin (1), washer
assembly (11, fig. 4-9).
(2), and clevis pin (3) which attach brake cable assembly
b. Maintenance and Adjustment.
(11, fig. 4-9) or valve rod (15, fig. 4-10) to lever (16 or
(1) Inspect the manual control panel and its
17). Remove nuts (4), washers (5), and screws (6) and
components for security of attachment.
spacers (7 and/or 8) which secure lever (16 or 17) to
(2) Adjust brake cable assembly (21, fig. 9)
control bracket (27).
Remove assembly (and cable
for proper tension as described in para 4- 22.
clamp housing (9) if removing brake lever (16).
(3) Adjust linkage of valve lever (17, fig. 1-
Note:
10), valve rod (15), and control lever of control valve
Do not attempt to disassemble levers.
assembly (47, fig. 4-9). Refer to paragraph
4-25
