DG Flugzeugbau LS4 - 3.4 Lubrication schedule

Maintenance Manual LS4
Issued: May 2011
Copyright DG Flugzeugbau GmbH - any copy or publishing prohibited
Manual valid with the up-to-date cover page only
3-7
3.4 Lubrication schedule
Location
Frequency
Lubricant
Main pins and matching bushes
Pins and matching bushes of
elevator connections
LS4, LS4-a: Connector and ball
of L’Hotellier connectors for
aileron and air brake control
LS4-b: Wing side bearings at
automatic aileron and air brake
system connectors, which are
inserted into fuselage couplings
Before
assembly
Water insoluble bearing grease
or
Molykote BR2 (Temperature
range from -30°C to 130°C, -
22°F to 266°F)
Landing gear: all joints
at rubber bearings
all metal parts
Once a year
Oil or Spray oil
Note: Protect rubber parts
against oil
Bearings of control surfaces
After
disassembly
only
Molykote grease BR2
(Temperature range from -30°C
to 130°C, -22°F to 266°F)
or Molykote grease 33
(Temperature range from -70°C
to 180°C, -94°F to 356°F)
Caution: Never grease longitudinal motion pushrod bearings. They will soon
be destroyed by collection of foreign matter. These bearings are used in the
elevator system, aileron system and air brake system.
Caution only LS4-b: The friction damper inside the air brake boxes prevents
oscillations during extension of air brakes. Therefore, friction pads should never
be greased or oiled !
Tow Hooks: see Maintenance Instructions of manufacturer (TOST)
Multiple point buckle of FAG 7H or FAG-12H safety harness: see
Maintenance Instructions of manufacturer (Autoflug)