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Capitol
Marine Gears -
Support Information
(click on your topic)
Frequently Asked Questions
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1)
What
Type of Oil is used in a Capitol Gear and how much
oil does it require?
2) How
to adjust your Shift Timing?
3)
What should my
Oil Pressure be on my Capitol Gear and how do you
adjust it?
4)
Can I buy a
Overhaul Kit for my Capitol Gear?
5)
What is required for Typical Maintenance Schedule for my Capitol Gear?
6)
How do I identify
the Model Number of my Capitol Gear?
7)
What are the
Key Wear Items in a Capitol Gear?
8)
How do you Remove
and Install a Capitol Marine Gear?
Important Notes for Capitol Marine Gears:
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DO NOT
OPERATE CONTINUOUSLY IN REVERSE MODE FOR MORE THAN 30 MINUTES AT 75% OF
AVAILABLE HORSEPOWER.
DO NOT
OPERATE UNIT OVER 180º F (82ºC)
DO NOT
OPERATE UNIT WITH HIGH (above 220 psi) OR LOW (below 180 psi) OIL PRESSURE
DO NOT
‘WINDMILL’ UNIT IN EVENT OF ENGINE FAILURE (PROP SHAFT SHOULD BE LOCKED TO
PREVENT ‘WIND MILLING’).
DO NOT
ATTEMPT FINAL ALIGNMENT OF OUTPUT FLANGE AND PROP SHAFT COUPLING WHEN VESSEL IS
IN DRY-DOCK.
DO NOT
SHIFT TRANSMISSION UNLESS ENGINE IS AT IDLE SPEED.
DO NOT
USE TRANSMISSION TO SUPPORT REAR OF ENGINE.
Trouble Shooting Guide:
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SYMPTOM |
PROBABLY CAUSE |
REMEDY |
|
A. Low oil pressure
(at full operating speed and temperature)
|
1. Faulty pressure
gauge
2. Low oil level
3. Clogged filter
element
4. Clogged suction
tube
5. Clogged parts
in selector valve, base plate or housing
6. Dirt or sludge
in transmission
7. Worn pump
assembly
8. Incorrectly
adjusted pressure relief valve
9. Oil too hot
10. Worn
commutator bushing
11. Incorrect
lubricant
12. Scratched
clutch cylinders or hard O-ring in clutch cylinders |
1. Check gauge
against one of known accuracy
2. Inspect
gaskets, seals, hoses and fittings for leakage. Pressure test oil
cooler-tubes may leak
3. Replace filter
element
4. Remove tube and
clean with
solvent. Blow dry
5. Flush clean
with solvent and blow dry
6. Remove drain
plugs, flush gear with commercial solvent or diesel fuel. Start
engine; at idle shift gear several times, full forward to full
reverse for 3-5 minutes maximum. Shut down engine and drain
7. Refer to oil
pump section
(Page 23) or fig.
13, p.17.
8. See fig.13 page
17
9. Check heat
exchanger system for clogged oil cooler or hoses.
10. See wear
limits chart (p.29)
11. See lube chart
(p.18)
12. Replace as
necessary (p.31)
|
|
B. High Oil
pressure (At full operating speed and temperature) |
1. Incorrect
adjusted pressure relief valve
2. Inoperable
relief plunger in base plate
3. Incorrect oil
4. Cold oil
5. Cold oil at
start-up |
1. Refer to fig.13
p.17
2. Refer to p.23
3. See lube chart
(p.18)
4. Check heat
exchanger system
5. Transmission
should be pre-heated see p.17 |
|
C. No Oil Pressure
|
1. Faulty pressure
gauge
2. Broken hose
3. No oil in
transmission
|
1.check pressure
with gauge of known accuracy
2. Replace hose.
Inspect all hoses
3. Fill with
proper oil. See p.18 |
|
D. Overheating |
1. Insufficient
Oil cooler Capacity
2. Insufficient
flow of cooling water
3. Clutch slipping
4. Water
temperature too high at cooler |
1. Install
adequate oil cooler
2. Increase water
line sizes
3. Refer to
symptom A
4. Decrease water
temperature to cooler or relocate heat exchanger in cooling system. |
|
E. Excessive
noise in transmission |
1. Bearings worn
or broken
2. Gears worn or
broken
3. Noise in
forward only
4. Noise in
reverse only
5. Improper
alignment |
1.Inspect bearings
for scored races, broken roller, flat -spots, etc.
2. Inspect gears
and replace if necessary
3. Reverse
position may be mistakenly used for forward. Selector valve lever
must point forward when boat is in forward motion.
4. This is normal
because more gears are in operation in reverse mode.
5. Refer to
section 3, pg.14 |
|
F. Noisy Pump |
1. Dirt or sludge
in oil
2. Clogged hoses
3. Pump cavitation
4. Defective oil
pump assembly |
1. Remove oil pump
and hoses. Clean thoroughly and reinstall
2. Clean and
replace as required
3. Oil level may
be too low
4. Refer to oil
pump section p.23
|
|
G. Clutch does
not release |
1. Transmission is
misaligned
2. Improper oil
sump
3. Clutch discs
warped
4. Forward and
reverse clutch cylinders dirty or distorted
5. Rear commutator
bushing is worn
6. Incorrect
linkage adjustment to selector valve assembly
7. Clutch discs
fused due to slippage and overheating |
1. Refer to
installation section
2. Refer to lube
chart
3. Replace as
necessary
4. Clean or
replace as necessary
5. Replace as
necessary. See replacement wear limits chart
6. Adjust linkage
7. Replace as
necessary |
|
H. Clutch
slipping |
1. Low oil
pressure
2. Transmission is
misaligned
3. Oil temperature
is too high
4. Worn clutch
discs
5. Incorrect
linkage adjustment to selector valve assembly
6. Improper oil |
1. See symptom A
2. Refer to
installation section
3. Temperature
should be 140°
to 160°F
(60°
to 71°C)
at selector valve. Check heat exchanger system
4. Replace as
necessary, see replacement wear limits chart
5. Adjust linkage
6. See lube chart |
|
I. Clutch burned
out |
1. Low oil
pressure
2. Clutch is
shifted at other than engine speed
3. Transmission
misaligned
4. Excessive heat
|
1. See symptom A
2. Install
interlock shift controls
3. Check
installation and alignment as described in installation section
4. Check cooling
system |
|
J. No Neutral |
1. Transmission
is misaligned
2. Warped clutch
discs
3. Scored clutch
cylinders
4. Damaged clutch
quad rings
5. Worn or
damaged commutator bushings (forward or rear)
6. Worn selector
valve |
1. Refer to
installation section
2. Replace as
necessary
3. Replace as
necessary
4. Replace all 4
5. Replace as
necessary. See replacement wear limits chart
6. Replace if
necessary. Note: selector valve is the least likely source of
trouble |
|
k. Clutch engages
too low |
1. Cylinder
timing screw out of adjustment |
1. Remove dome
nut and adjust screw (counter-clockwise) to speed up reaction. |
|
L. Clutch engages
too fast |
1. Cylinder
timing screw out of adjustment |
1. Remove dome
nut and adjust screw in (clockwise) to delay reaction. |
Frequently Asked Questions
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1) What
Type of Oil is used in a Capitol Gear and how much
oil does it require? back to FAQ's
For all normal ambient
operating conditions, 30 degree Fahrenheit (-1°C)
to 85 degrees Fahrenheit (29°C),
we recommend a good grade, anti-foaming, heavy duty, SAE 30 motor oil.
Where high ambient temperatures are encountered, over 85 degrees Fahrenheit (29°C),
it may be necessary to use SAE 40 motor oil. Where extremely cold
ambient temperatures are encountered, under 30 degrees Fahrenheit (-1°C),
it may be necessary to use SAE 20 motor oil.
In all
cases, it is recommended that the operating temperature of the lube oil should
be approximately 100°
Fahrenheit (38°C)
to 150°Fahrenheit
(66°C),
with that temperature being taken at the oil line leaving the cooler or at the
control valve. Serial 3 motor oils are not recommended as they
may
shorten clutch life.
CAUTION:
When using SAE 20 motor oil
be very attentive to oil pressures. If proper pressure cannot be maintained
(200-210 P.S.I), it may be necessary to use SAE 30 and warm engine and gearbox
thoroughly before engaging clutch. This condition would only be encountered at
extremely low temperatures.
2) How
to adjust your Shift Timing?
back to FAQ's
To adjust the Cylinder Timing see the diagram
illustrating the Selector Valve and the Adjustment Screw.
(click on image to enlarge)
3)
What should my
Oil Pressure be on my Capitol Gear and
back to FAQ's
how to adjust the Oil
Pressure?
The Oil Pressure on a Capitol Gear when your unit
was brand new was 200 to 210 psi.
If your unit has not been overhauled recently and it
may run at a slightly lower pressure such as
185 to 200 psi. Remember this Oil Pressure is only
taken under normal operating conditions and temperatures.
Here are a two different models and there methods of
adjustment.
(Keep in mind that only slight changes in pressure
may occur)
When Adjusting your Oil Pressure you should check
your Service Manual as a Reference.


4)
Can I buy a
Overhaul Kit for my Capitol Gear?
back to FAQ's
Overhaul Kit can be purchased through us or your
local dealer.
Please Contact Us
in order to verify which Overhaul Kit.
5)
What is required for Typical Maintenance Schedule for my Capitol Gear?
back to FAQ's
Click
here to see a typical maintenance schedule
6)
How do I identify
the Model Number of my Capitol Gear?
back to FAQ's
One way to identify the model of your Capitol Gear
is to look through the Capitol Models section and
review the photos to compare the photos to your model.
7)
What are the
Key Wear Items in a Capitol Gear?
back to FAQ's
See the attached diagram which identifies some of
the Typical Wear Areas. (Unit shown is a HE
Series Gear)
8)
How do you Remove
and Install a Capitol Marine Gear?
back to FAQ's
Click Here for a more details description of how to Install AND/OR Remove
you Capitol Gear
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