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23-78
CONVERTIBLE MAINTENANCE
/
/
PIN
-.--
VIEW
AT ARROW
7 7
7,
1 7 n
-
0
64x446A
Fig. 173-Folding
Top Mechanism
IAR-AV
Models)
172 and 173) consists of two cylinders, a piping sys-
tem, an electric motor, a pump and reservoir assem-
bly, and a double-throw rotary switch. The wiring and
motor are protected by a separate circuit breaker.
The cylinders are serviced only as an assembly. The
reservoir end plate "0" ring is replaceable. The pump
cover plate is serviced as an assembly and the rotors
are serviced as a package with the "0" rings.
TOP ADJUSTMENTS
Convertible top adjustments are of two general
classifications-minor
and major. The minor adjust-
ments are easily accessible and can be made without
any major ,disassembly.
Minor Adjustments
The minor adjustments are provided to assist in
aligning the top header in relation to the windshield
header to prevent water and air leakage into this
area; to improve top frontal area appearance and as-
sure ease of operation in raising and lowering the top.
They are also provided to assure correct alignment
of the roof side rails with the door and quarter glass
to prevent air and water leakage. Adjustments are
also provided to eliminate wrinkles in the top materi-
al.
Major Adjustments
The major adjustments are at the prop control link
bracket and the power cylinder mounting brackets.
These adjustments are necessary to improve roof side
rail alignment if minor hinge and header adjustment
do not completely correct the condition.
DOOR AND GLASS ALIGNMENT
Before making any top adjustments, doors, vent
wings and door and quarter glass must be properly
aligned. Misalignment in any of these areas make it
impossible to obtain satisfactory results from top ad-
justments alone. Glass up-stop adjustments should be
made after the correct roof side rail alignment to lim-
it the upward travel of the glass and to assure effec-
tive sealing between the roof side rail weatherstrip
and glass.
TOP HEADER
Latching Mechanism and Locating Dowels
Good weathersealing at the frontal area is depend-
ent upon proper positioning of the top header on the
windshield header. The header locating dowels are
cast into the latching mechanism housings and engage
the sockets in the windshield header to correctly po-
sition the header.
The amount of pressure exerted by the weather-
strip against the finish moulding is controlled by the
top latching mechanisms attached to the top header.
The locking and unlocking effort of the latching
mechanisms are adjustable to control the pressure on
the weatherstrip.
Header Adjustments
The top header is adjustable at the front roof side
rails to permit fore-or-aft and lateral movement. The
header is attached to the side rails by two header-to-
STING SCREW
FRONT SIDE RAIL
n
REAR ROOF RAIL
HEADER
BOW LINK
SCREW
SCREWS
SET SCREW
CYLINDER
ATTACHING
PLATE
d k
SECTION
CC
NK924
ATAfww
Fig. 174-Folding
Top Linkage
IAP
Models)
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