Towing/Retrieving - Terex PT30 Operation And Maintenance Manual

6 TRANSPORTATION

6.2 Towing/Retrieving

In the event that the PT-30 needs to
be towed or retrieved, it will not roll
freely. You must perform the following
procedure in order to pull it to safety.
Locate the drive sprockets (as shown
in figure 6.2-1) on each side of the
machine.
Make sure the engine is off
and the key has been
removed from the ignition to avoid
accidental start. Use wheel chocks
at each end of the undercarriages
to prevent the machine from rolling
while performing this procedure.
1. Starting with the track properly tensioned, loosen the upper jam nut on the
track adjustment turnbuckle (shown in section 7-14). Loosen the lower nut 3
full revolutions in the proper direction (to loosen the track). Re-secure with
the jam nut.
2. Using two wrenches, remove the retaining nuts (A) from the upper four
bolts within the drive sprocket that support the drive teeth in contact with
(or close to) the rubber track (fig. 6.2-1,-2).
3. Use a punch (or similar) to drive each bolt (D) toward the rear of the sprocket
until it contacts the machine chassis (fig. 6.2-2).
4. Reach into the sprocket and remove the sprocket rollers (B) and pins (C)
from those four drive teeth (fig. 6.2-2).
5. Repeat steps 1-4 on the other side of the machine to prepare the machine
for retrieval.
6. Carefully pull the machine to safety. Remove wheel chocks prior to towing.
Once the needed repairs have been made, reverse the above procedure to restore
the machine to normal operating status.
Use only chains that are rated for pulling a machine of this size and
weight. Attach these chains to at least two of the D-rings in the front or
rear of the machine.
6.2-1 Remove
6.2-2
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