CropHawk Draper Platform Operators Manual 51
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Drive System
Service / maintenance
Pulley Taperlock Removal and Installation
IMPORTANT: The drive belt is a non slip and non stretch belt. Over tensioning of drive belts
will
cause damage and excessive wear on components.
To Remove Taperlock Pulleys:
1.
Loosen or remove belt from pulley.
2.
Clean all threads on taperlock .
3.
Loosen both grub screws 10 turns (A).
4.
Remove 1 grub screw and insert into taperlock release
thread (B).
5.
Tighten grub screw in thread B until taperlock releases from
pulley.
NOTE: A tap from a soft ended drift may assist release.
6.
Slide pulley and taperlock from shaft.
Installation
1.
Clean and degrease all parts including both taperlock
surfaces.
NOTE: A improperly seated taperlock will cause vibration and
shaft damage.
2.
Slide pulley and taperlock over shaft.
3.
Insert grub screws into taper lock threads (A).
4.
Tighten grub screws in stages alternately until tight, a light tap on taperlock also helps it seat.
5.
Torque grub screws on 3070 taperlock to 90nm (66ft-lb). 2517 taperlock to 50nm (37 ft-lb).
A
A
B
B
Knife Driveshaft Taperlock Bearing Removal
1.
Unlock taperlock lock-tab (A).
2.
Loosen taperlock nut (B) 3 or 4 turns.
3.
Using a slide hammer tap taperlock squarely until it releases
from bearing and shaft.
4.
When assembling shaft and taperlock bearing assembly keep
all threads clean and protected.
5.
Tap lock tabs (A) over after tightening taperlock.
B
A
