8999070: v3 03/09/2018
Page 6.4 of 6.10 pages
Original instructions (ENGLISH)
Website: www.spearheadmachinery.com
6.5.4
Rotor gearbox removal
Figure 6.4
ITEM NO.
DESCRIPTION.
1
RH Outer Gearbox
2
Short Driveshaft Clamping Bolt
3
Flexible Coupling
4
Long Driveshaft
Remove the six flexible coupling mounting bolts.
Remove the relevant short driveshaft clamping bolt (2).
Slide the long driveshaft (4) towards the opposite rotor gearbox.
Slide the short driveshaft towards the relevant outer gearbox.
Remove the flexible coupling (3)
and both driveshaft’s and store them safely.
Lift and support the machine on safety supports.
With assistance, support the blade carrier, remove the split pin and rotor castle nut and remove the rotor from
the splined gearbox output shaft. Refer to Figure 6.9.
With assistance, remove the four nuts and mounting bolts securing the gearbox to the machine.
Remove the gearbox (1).
Replacement is the reverse of removal, but tighten the mounting bolts and castle nut as specifie
d in ‘Specific
Torque
Settings’; Section 6.14.
WARNING!
Ensure that the blade carriers and blades are at 90° to each other after removing or replacing
drive couplings and/or rotor hubs.
6.6
Input gearbox
6.6.1
Check and tighten input gearbox fixing bolts
Figure 6.5
