bpr Rotax 912 i Series, Руководство по обслуживанию, Страница: 150 / 458

Effectivity: 912 i Series
Edition 1/Rev. 3
d0
667
2.
fm
MAINTENANCE MANUAL
BRP-Rotax
72-10-00
Page 14
July 01/2018
To prevent corrosion damage, the rear of the
propeller flange should be coated with a layer of
anti-corrosion paint.
In the event of more severe corrosion damage
which has affected the material, the propeller
shaft must be replaced.
DOG HUB CHECK
Fig. 21
THRUST WASHER CHECK, BEARING
BUSHING CHECK
Fig. 22
STEP COLLAR CHECK, DISC SPRING
CHECK
NOTE:
The step collar for gearbox with oil
spray nozzle has recesses in bore.
m
WARNUNG
NOTICE
To apply the protective paint, carefully cover the
flange surface, fastening bores and the propel-
ler shaft.
Step Procedure
1 Visually check the dog hub for visible pit-
ting on the gear-tooth system and/or in
the engagement faces of the dogs; see
section 72-10-00 Wear limits. (GB08)
NOTE: The cam peaks of the gear must
never rest in the trough of the
dog hub.
2 Measure the gap between the cam peak
and the cam trough; see section
72-10-00 Wear limits. (GB07)
NOTE: Slight to moderate traces of
wear and pitting on the dogs are
permissible.
1. Dog hub 2. Gear (propeller shaft)
Step Procedure
1 Measure the thickness of the plastic thrust
washer between the gear set and the
drive gear; see section 72-10-00 Wear
limits. (GB11)
2 Check the heat-treated steel bearing
bushing for wear.
1. Thrust washer 2. Gear (propeller shaft)
3. 29T drive gear 4. Bearing bushing
Step Procedure
1 Check the step collar in the vicinity of the
disc spring support for wear.
2 If wear of the disc springs is visible in the
contact area, replace the disc springs.
Inspect the dimension (GB13) of the non-
tensioned disc spring; see section 72-10-
00 Wear limits.