2-66. WINDSHIELD WIPERS.
a. Description. Two electrically operated windshield wipers are provided for use at all light speeds. The rotary
switch (Fig. 2-13) placarded WINDSHIELD WIPER, located on the overhead control panel, selects mode of wind-
shield wiper operation. An information placard above the switch states: DO NOT OPERATE ON DRY GLASS .
Function positions of the switch, as read clockwise, are placarded: PARK - OFF - SLOW - FAST . When the switch
is held in the spring-loaded PARK setting, the blades will return to their normal inoperative position on the glass,
then, when released, the switch will return to OFF position terminating windshield wiper operation. The FAST and
SLOW switch positions are separate operating speed settings for wiper operation. The windshield wiper circuit is
protected by one 10-ampere circuit breaker, placarded WSHLD WIPER, located on the overhead circuit breaker
Do not operate windshield wipers on dry glass. Such action can damage the linkage as well as
scratch the windshield glass.
b. Normal Operation. To start, turn WINDSHIELD WIPER switch to FAST or SLOW speed, as desired. To
stop, turn the switch to the PARK position and release. The blades will return to their normal inoperative position
and stop. Turning the switch only to the OFF position will stop the windshield wipers, without returning them to the
normal inactive position.
2-67. FERRY CHAIR.
Operational necessity may require the installation of passenger chairs. This will be accomplished by removing the
mission racks and installing the chair(s) in accordance with the approved maintenance procedures.
2-68. CIGARETTE LIGHTERS AND ASH TRAYS.
The pilot and copilot have individual cigarette lighters and ashtrays mounted in escutcheons out-board of their seats.
The cigarette lighters are protected by a 5-ampere circuit breaker placarded CIGAR LIGHTER , on the overhead
2-69. CHEMICAL TOILET.
a. Description. A side-facing, chemical toilet is installed in the aft cabin area and can also be used as an ad-
ditional seat. Two, hinged lid half-sections must be raised to gain access to the toilet. Waste is stored within a
removable container located below the seat in the cabinet assembly. This non-lushing system uses a dry chemi-
cal preparation to deodorize the stored waste. A toilet tissue dispenser is contained in a slide-out compartment on
the forward side of the toilet cabinet. A box of disposable waste container liners and a box of chemical deodorant
packets are also stored in the cabinet.
b. Operation. During use, a removable, throwaway plastic liner is attached to the waste container. After use,
dry chemical deodorant obtained from the storage cabinet is deposited on the waste and the hinged lid sections are
closed over the cavity. After each light, the waste container must be removed, emptied, relined, and replaced in the
cabinet. Consumable toilet items should be resupplied as needed.
When adjusting the sun visors, grasp only by the top metal attachment to avoid damage to the plastic
2-70. SUN VISORS.
A sun visor is provided for the pilot and copilot respectively. Each visor is manually adjustable. When not needed
as a sun shield, each visor may be manually rotated to a position lush with the top of the cockpit so that it does not
obstruct view through the windows.
2-71. RELIEF TUBE.
One relief tube is provided, located immediately aft of the cargo door on the left side of the fuselage.