Start-Up Procedure; Operating Practices - CAPITOL HY- 6900 Service Manual

3.6 START-UP PROCEDURE

1. Remove oil breather or top inspection
cover and add recommended oil until
level is up to full mark on dipstick (see
lube chart, p.12). Replace but do not
secure.
2. Install pressure gauge of 300-pound
capacity directly on top of gear or on
bulkhead. Connect gauge to control
valve with hydraulic hose. (Note: Electric
type oil pressure gauges are not
recommended.)
Reverse gear is now ready to start up:
3. Engage starter for approximately 30
seconds, but DO NOT START ENGINE.
This activates pressure pump which pre-
lubricates reverse gear, preventing
premature wear before load is applied.
4. Start engine and check all connections
for leaks.
5. Oil pressure is adjusted at factory for
testing purposes only and it may be
necessary to readjust pressure to the
correct level (200-210 PSI). This should
be set for normal operating speed and
temperature (See fig. 12 below).
NOTE:
Normally unit pressure at idle start-up will be
180 PSI, but final adjustment must be made
as noted above.
6.
After unit has been operated a few
minutes, stop engine, check oil level and
add sufficient oil to bring level to full
mark on dipstick. (See lube chart for
capacities). Secure oil breather or
inspection cover
7. Shift several times to insure that all
cylinders, hoses and cooler are full of
oil.
8. Install selector valve cables and shift to
insure valve lever goes into full detent in
all 3 positions; forward, neutral and
reverse.
NOTE:
We strongly recommend installing an interlock control
system, which prevents shifting at other than engine
idle speed and greatly prolongs life of the gear.
9. Reverse gear is now ready for sea trials
and final adjustments.

3.7 OPERATING PRACTICES

CAUTION
1. A Capitol reverse gear should normally not be
shifted unless engine is at idle speed.
2. Reverse gear cannot be operated continuously
in reverse mode for more than 30 minutes at 75%
of available horsepower.
3. In marine application 'windimilling' (freewheeling)
is strictly prohibited as extensive internal damage
may result. IN the case of a twin screw application
where only one engine may be used a great deal,
shaft brakes should be installed. ( As an alternative
an auxiliary lube system may be installed).
4. Do not operate unit with high or low oil pressure
or if oil temperature exceeds 180ºF.
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