Austro Engine E4 Series User Manual

E4 Series
Maintenance Manual
Reciprocating
Engine
Page 224
E4.08.04
Rev. 29
85-Maintenance Procedures
01-Jul-2020
B. Install the Two-Mass Flywheel
Detail Steps/Work Items
Key Items/References
(1)
Put the two-mass flywheel in place on the
engine crankshaft.
Make sure the aligning pin is installed on the crankshaft.
(2)
Lock the two-mass flywheel.
Use the flywheel locking tool.
Refer to Fig. 85 - 38.
(3)
Install the 8 screws on the two-mass flywheel
hand tight in a crosswise sequence.
Use new screws.
Refer to Fig. 85 - 39.
Always use new screws to install the two-mass flywheel again.
(4)
Make sure that the teflon ring does not come
over the tapped holes.
Make sure there is sufficient clearance for the
screw heads.
Refer to Fig. 85 - 59.
(5)
Tighten the 8 screws on the two-mass flywheel
in a crosswise sequence.
Step 1: 45 Nm
Step 2: 90°
Make sure that the screw head does
not damage the white plastic ring.
(6)
Attach the hub on the centering pins.
Refer to Fig. 85 - 40.
Make sure that the components will not be damaged during tapping onto the
hub.
Make sure that the centering pins stay in their position during tapping.
If you cannot align the hub without applying force, do the following steps:
- Put the hub with the centering hole onto the centering pin #1 of the
secondary mass. The hub can be only supported onto the other centering pin
#2. The hub may form an angle between the flange of the hub and the flange
of the secondary mass. Refer to Fig. 85 - 41.
- Put e.g. a lever bar (slotted), approximately 8 mm thick, between the
secondary and primary mass at the centering pin #1. Do not damage the two-
mass flywheel when applying a lightly counter force during tapping with the
soft face hammer! Refer to Fig. 85 - 42.
- Lightly tap with a soft faced hammer onto the hub at the centering
hole. The hub should slip onto the centering pin #2 at the elongated centering
hole during tapping onto the centering hole for centering pin #1. If not, put
also e.g. a lever bar (slotted), approximately 8 mm thick, between the

Austro Engine E4 Series Specifications

General

Brand	Austro Engine
Model	E4 Series
Category	Engine
Language	English