Page 76 - Tech handbook 2019 rev 6 whyperlinks

Use shims to adjust the gearbox within tolerances above. With every move to the gearbox an alignment recheck
is required by repeating the laser tool rotation. Once all values above are within tolerance the gearbox
mounting bolts can be torqued for the final time. Note all shims should be properly placed fully under the
gearbox, trimming may be required.

At this point a note should be made of the shims utilized in each corner of the gearbox, Alignment saved as Cold
Engine to Gearbox. You can now confirm Axial Spring Pack adjustment

Axial Spring Pack Engine to Gearbox

Most Type 6 engines come with a Spring pack attached to the flywheel rubber coupling, this spring pack is
designed to assist with the lateral movement the crank shaft can have during operation. Improper
measurement can cause a “sideways” load on the gearbox bearing as well as engine crankshaft. For proper
measurement of the spring back crankshaft must be pressed as far forward (towards flywheel) as possible and
pinned so movement is not possible Jenbacher tool 1207586 can be used.
Using the adjusting screws at the front and rear of the gearbox move the gearbox forward or backwards to
obtain the correct spring pack length. Once this is completed Final torque of the gearbox can be complete. Your
Engine to gearbox alignment is now complete and no adjusting the engine or gearbox is no longer possible

1d 1e 1f

******Do not overstretch Spring Packs******

Engine Spring Pack limits with crankshaft in front most position
• Coupling type 345-6x: 28.2 mm +/- 0.3mm
• Coupling type 345-8x: 28.2 mm +/- 0.3 mm
• Coupling type TEF 208 mm +/- 0.35mm

*NOTE coupling type TEF does not utilize a Spring pack illustration 1f shows axial measurement location.
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