TIMBERWOLF
TW 230DHB
19
1. Turn the chipper off and remove the ignition keys.
2. Remove battery leads.
3. Remove the 2 nuts retaining the access hatch,
slide hatch clear of rotor housing.
4. Turn rotor to blade change position.
5. Insert locking bar into rotor housing and rotor.
6 Brush away all dirt and debris from the rotor
and blades.
7. With a 24mm spanner/socket undo the two
nyloc nuts and washers that are holding the
blade in place. Remove both blade bolts from
the blade.
8. Grasp the blade by the flat edges while
wearing heavy duty gloves.
9. Withdraw the blade from the rotor.
10. Clean the back surface of the blade, blade
bolts and blade area of the rotor before
reseating blades. The blades must not
have any material underneath them
when tightened. If they are not flat and
tight they will become loose very quickly.
11. Reassemble the blades, bolts, washers and
nuts in the order shown in the diagram
above. Use only genuine Timberwolf nuts
and washers, as they are of a higher grade
than normally stocked at fastener factories.
Failure to use the appropriate grade nuts or
washers may result in damage, injury or
death. The use of genuine Timberwolf
blades and bolts is recommended.
12. Apply a smear of anti seize compound
(copper ease) to the bolt threads and back
face of the nuts. Do not apply copper grease
onto the counter bore faces of the blades or
bolts.
13. A calibrated torque wrench must be used
to tighten the bolts to a torque setting of
125 lbs ft (170 Nm).
14. Remove lock pin, rotate rotor to next blade
then replace lock pin and repeat steps 6 - 13.
15. Refit access hatch.
16. Refit the nuts and tighten to 40lb/ft.
17. Refit battery leads.
CHANGE BLADES
WARNING
Wear riggers gloves for the blade changing operation.
WARNING
Always sharpen blades on a regular basis. Failure to do so
will cause the machine to under perform and will overload
engine and bearings causing machine breakdown. Blades
must not be sharpened beyond the wear mark (see diagram).
Failure to comply with this could result in machine damage,
injury or loss of life.
WEAR MARK
SERVICE INSTRUCTIONS
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