Austro Engine E4 Series - Remove the Gearbox Oil Filter

E4 Series
Maintenance Manual
Reciprocating
Engine
Page 218
E4.08.04
Rev. 29
85-Maintenance Procedures
01-Jul-2020
G. Remove the Gearbox Oil Filter
Detail Steps/Work Items
Key Items/References
For a gearbox rev.79 to rev.90 installed on a “-B” or “-C” engine, the gearbox
temperature sensor (GBTS) is installed instead of the plug screw.
Disconnect the GBTS before you do the following steps.
It is recommended to remove the GBTS before the filter removal.
Be careful with the GBTS.
(1)
Remove the lock-wire from the plug screw.
Refer to Fig. 85 - 29.
(2)
Open the plug screw.
(3)
Remove the gearbox oil filter with screw (e.g.
M8x50 or longer)
(4)
For a 100 h check of the gearbox oil filter:
Visually examine the filter for:
- Damage
- Debris
- Contamination
- Metal abrasion.
Clean the oil filter with Brake Cleaner.
If you find unusual contamination:
- Metal shavings larger than 1 mm
- Concentration of particles
- Clogged filter
Replace the gearbox.
(5)
For a 300 h replacement:
Discard the used filter.
Install a new filter.
Fig. 85 - 29 Plug screw
Fig. 85 - 30 Gearbox oil filter
Plug screw
Oil filter