To insure a long service life of the Capitol Marine gear and to prevent costly and unexpected failures it is very important that a regular maintenance schedule be established and followed.

 

LUBRICANTS

 

Use oil-meeting requirements of MIL-L-2104B or API SERVICE CLASS. SE/CC.

 

NOTE: Series 3 oils are not recommended because they may shorten clutch life.

 

For all normal ambient operating conditions between 30 º F (-1 º C) to 85 º F (29 º C), We recommend a good grade, anti-foaming, heavy duty, SAE 30 motor oil.

 

Where high ambient temperatures are encountered, over 85 º F (29 º C), it may be necessary to use SAE 40 motor oil.

 

Where extremely cold ambient temperatures are encountered, under 30 º F (-1 º C), it may be necessary to use SAE 20 motor oil **

**CAUTION: When using SAE 20 motor oil be very attentive to oil pressures. If proper pressure cannot be maintained 9200-210 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.

Oil Capacity

HY-6900/7700 =   7.5 Gallons (28 liters)

(approximate, depending on cooler, hoses etc.)

 

Bring oil up to full mark on dipstick. Operate unit in forward and reverse for several minutes.

This will fill cooler, clutch cylinders, pump hoses, etc. Stop engine and add required oil to return level to “full” mark on dipstick.

 

Oil Pressure

Operating oil pressure must be at least 200-210 PSI at normal operating speed and maximum operating temperature.

 

Oil Temperature

Operating oil temperature range is 100º-150ºF (38º-66ºC) at control valve. Unit will tolerate higher temperatures but clutch life may be shortened considerably.

 

 

ROUTINE MAINTENANCE

 

Oil Cooler Assembly

Check Zinc pencils in oil cooler ad change if badly eroded. Check zinc pencils at approximately every 400 hours of operation.

 

Check water tubes for obstructions at approximately every 2000 hours of operation and flush if necessary.

 

Oil Filter

The oil filter element should be replaced every 400 hours of operation or at the same time oil is changed.

 

Oil Breather

Remove oil breather every 400 hours of operation or the same time oil is changed. Clean diesel fuel can be used for flushing.

 

Pressure Gauge

Periodically check pressure gauge by substituting a calibrated pressure gauge of known accuracy.

 

Visual Inspection

At frequent intervals check all oil lines, water hoses, and connections for leaks. Tighten all external bolts and connections and visually inspect external components for wear or damage.

 

Wear Analysis

At periodic intervals record pressure readings at idle speed; a gradual decline is normal. Readjust pressure relief valve to maintain proper operating pressures. 

 

Inspection/ Overhaul interval

A complete inspection of the Capitol marine gear should be made at least as often as the engine is overhauled. Parts such as commutator bushings, oil seals, o-rings, clutch discs, bearings etc. showing any fatigue or wear should be replaced. It may be desirable to completely rebuild the marine gear at this time.

 

Contact us to find a Dealer nearest you