01A01-11
HD Series 2600
Introduction
01
Use an open wrench in both grades only to remove
hard-to-access bolts, alternately, until the bolt or nut
is released.
Removing nuts from injection tubes
A box wrench is best, but first you need to cut an
opening in the wrench for the tube to pass through.
Use this wrench only for this purpose.
Mounting parts with interference
Always heat the external part (bearings, hubs, etc)
and/or cool the internal part (axles, valve guides and
seats, etc).
Heating makes a part expand, and cooling makes it
shrink, so using this method you make the fitting
easier and reduce damage to the parts.
The heating should never be done with a direct
flame, because this would weaken the part and make
it brittle.
You should heat the part in hot oil (80 to 90°C / 176
to 194°F) or by electrical induction.
Cooling can be done in a freezer, or in a bucket of
ice or dry ice.
Fig. 13
Fig. 14
Fig. 12B
Fig. 15
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