Maintenance Manual DG-808C
Issued: May 2012
TN800/41
3.9
16.
Check the rubber engine mounts, especially for cracks. Therefore apply
strong pressure to the propeller mount in forward, backward and sideways
direction.
17.
Check and grease the starter motor gear shaft (don't grease the starter motor
gear) Check starter motor for tight mounting. There should be no excessive
radial free play of the starter motor gear axle. With too much free play the
starter must be exchanged.
18.
Clean the starter ring gear and check for damage. Check if the starter ring
gear was bent forwards by the starter motor. There should be approx. 1mm
(.04 in.) clearance between starter ring gear and drive belt.
19.
Remove the fairings which protect the drive belt. Check the drive belt for
wear and tension (see sect. 4.12.g). If the drive belt shows signs of wear or if
there are cracks/tears at the base of the belt teeth, the drive belt must be
replaced.
Check the operating time of the drive belt, see section 0.4.3.
Check the drive belt tension according to section.. 4.12 item g.
Check the 6 rollers 8M171 which guide the drive belt for tight fit to their
mounting brackets and for easy turning. If there is any significant friction in
their bearings, the rollers have to be replaced.
20.
Clean the spindle drive, function check. Check the connection of spindle drive
and gas strut to engine and fuselage. To accomplish this extend the engine only
so far, that you still can see the connection to the engine mount. Check
especially for cracks in the spindle drive fork.
21.
Option BBSA slipping-centrifugal clutch:
Check the propeller stopper for
wear and function, check especially the actuating spring.
22.
Oil all hinge points of the powerplant
23.
Check the time taken to extend the power plant. If it takes longer than
described under sect.1.12.3 the gas strut has to be replaced.
24.
Check the engine retaining cable for wear and kinks.
Check thimble and bolt of the upper cable connection for wear.
Check the adjustment of the retaining cable according to sect. 1.12.4. If
necessary adjust the cable at the adjustment screw in the rear end of the
engine bay.
25.
Check the main bearings of the upper pulley for any free play.
Summary of Contents for DG-800A
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