CHANGE BLADES
TW 160PH
SERVICE INSTRUCTIONS
18 / 51
C190-0013 11.04.2019
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5
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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
Turn the chipper off and remove the ignition keys.1
Remove battery leads.2
Remove the M10 bolt retaining the guard, allowing the guard to be3
opened.
Remove the 3 nuts retaining the access hatch, pull hatch open clear of4
the rotor housing.
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 that8
are holding the blade in place. Remove both blade bolts from the blade.
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 the11
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.
Reassemble the blades, bolts, washers and nuts in the order shown in12
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.
Apply a smear of anti seize compound (copper ease) to the bolt threads13
and back face of the nuts. Do not apply copper grease onto the counter
bore faces of the blades or bolts.
A calibrated torque wrench must be used to tighten the bolts to a14
torque setting of 125 lbs ft (170 Nm).
Remove lock pin, rotate rotor to next blade then replace lock pin and15
repeat steps 7 - 14.
Refit access hatch.16
Refit the nuts and tighten to 45lb/ft.17
Refit battery leads.18
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