13
LUBRICATION AND MAINTENANCE
Figure 15
FILL PLUGS
The rotor gearboxes are packed at the factory with Cas-
trol Number NLGI #2 EP Grease. This is a grease with
a high resistance to water and will not dry out or be-
come caked. Check the gearboxes periodically to make
sure the gears are coated with grease and add more as
needed. There are two ll plugs located on the top of
each rotor gearbox. Remove both plugs when lling the
gearbox so the air can escape.
The double u-joints have (2) center
crosses with grease ttings. These
should be lubricated every 20 hours.
All of the pivot points have a grease
tting and a bronze bushing. This
should always be visibly wet with
grease. Grease as needed.
General Lubrication
When a grease point has specic hourly frequency, 1 full pump should be sufcient lubrica-
tion. Always use a grease that is rated for high temperatures commonly found in a bearing.
The grease in the rotor gearboxes can seep out as the spindle exes. Do not be alarmed, this
is normal. The seal is exible, so when the spindle exes it can cause a small gap which al-
lows oil to seep out between the seal and the spindle assembly.
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