Frontier TD2427, Operator'S Manual

Page: 15 / 44

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 fill plugs located on the top of
each rotor gearbox. Remove both plugs when filling the
gearbox so the air can escape.
The double u-joints have (2) center
crosses with grease fittings. These
should be lubricated every 20 hours.
All of the pivot points have a grease
fitting and a bronze bushing. This
should always be visibly wet with
grease. Grease as needed.
General Lubrication
When a grease point has specific hourly frequency, 1 full pump should be sufficient 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 flexes. Do not be alarmed, this
is normal. The seal is flexible, so when the spindle flexes it can cause a small gap which al -
lows oil to seep out between the seal and the spindle assembly.