CAPITOL HY- 6900, Service Manual

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SECTION 1. INTRODUCTION
The purpose of this manual is to provide
assistance to operation and maintenance
personnel to reduce downtime and obtain
consistent performance.
This service manual contains thorough
installation and operation procedures, steps
for proper maintenance and repair, a trouble
shooting guide for assessing difficulties
promptly, an illustrated parts information
section, and engineering drawings for
fabricating special tools. It should be made
readily available to all those responsible for
the operation or servicing of the reverse
gear.
Performance characteristics and other
details may be obtained from the
engineering department of Capitol Gears,
Inc., St. Paul, Minnesota, U.S.A.
1.1 DESCRIPTION
The Capitol marine transmission is operated
hydraulically. The clutch is activated by high-
pressure oil and the gears, bearings and
clutch discs are lubricated and cooled by
low-pressure oil.
The marine gear consists of six major
groups of parts; adapter group, clutch pack,
oil pump, selector valve, pinion shaft and
reduction gear. The adapter parts vary
according to engine application and include
a flywheel adapter, drive flange, and oil dam
adapter to prevent engine contamination
and driving drum. The clutch pack consists
of reciprocating cylinders, clutch discs and a
planetary bevel gear reversing system. The
oil and pump supplies oil pressure for clutch
engagement and lubrication of bearings,
gears and clutch. The selector valve is used
to obtain forward, neutral or reverse. The
one-piece pinion and shaft drives the output
gear directly or through and intermediary
gear called and idler.
1.2 OPTIONAL EQUIPMENT
OIL COOLER
Various capacity oil coolers for salt or
fresh water are available depending on
engine size and are purchased
optionally. However, oil cooler must be
used with a capitol marine transmission.
HOSE AND FITTING PACKAGE
Kits that include the necessary hose and
fittings are available for use with capitol
oil coolers.
PROP COUPLING KIT
A prop shaft coupling kit is available to
meet most requirements
POWER TAKE-OFF
A one-way clutch may be furnished for
power take-off reduction gears ( HP
PTO series.)
INDEPENDENT MOUNT
For installations where the transmission
is not to be bolted directly to the engine,
a keyed input shaft is available.