1) Sprag Clutch - Removal; 2) Sprag Clutch - Dismantling - Rotax 914 F Maintenance Manual

14.2.1) Sprag clutch — removal
See Pic. 203.
Insert protection piece, part no. 877 410, into crankshaft and remove sprag
clutch housing T with puller 877 375 from crankshaft. The freewheel gear Y,
the timing gear placed behind, the pump gear I pressed onto the camshaft
and the timing gear O underneath can be removed only after splitting of the
crankcase.
Drive of mechanical rev. counter
via worm gear U pressed into
camshaft.
14.2.2) Sprag clutch — dismantling
See Pic. 204 and 205.
Visually check for accumulation of oil sludge in sprag clutch housing Q. For
10
}
9
00237
bore U in housing. Check teeth I and sprag engagement face O on free
wheel gear and inspect bearing bush P.
Modification no.
- 0 -
9
1
3
00236
2
4
6
8
5
Pic. 204
Reference
7
8
2
cleaning, remove retaining ring W.
Compress circlip E in sprag clutch
R with circlip pliers and twist sprag
7
unit out of the sprag clutch housing.
Clean all parts. The circumferential
helical spring T must not be loose or
wavy distorted. Replace sprag unit
as required.
The sprags Y must be freely moving
and the surface free of damage.
1
Check engagement face in sprag
clutch housing Q.
At detectable wear of gripping faces ex-
change corresponding parts. Inspect taper
Main
914 F
4
5
6
Pic. 203
Date
Page
1997 02 01
231