Komatsu PC4000, Процедура сборки

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Ass emb ly Proced ur e PC4000
PC4000Asrev05
Edition 08/2005
29
3.2. Assembl y of Superstru ctur e ont o the Undercarriage (Z23863)
1. Attach the superstructure to the cranes, lift up the
superstructure and very carefully clean the contact surfaces of
the slew ring and the carbody from the paste with a appropriate
solvent.
2. Check if the “S” position of the inner and outer ring of the slew
ring is left and right of travel direction.
3. Prepare all bolts (2), washers (1) and grease the threads and
the washers as well as the head surface of the bolts.
(Refer PARTS & SERVICE NEWS AH 00511 last edition)
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Install 2 thr eaded pins (M36 x 200 mm l ong, one end po int ed, to
be manufactured) dis placed by 180° to sl ew ring at
superstructure.
This simplifi es the alignment of t he slew ring to the
undercarriage.
4. Align superstructure to the carbody and lower the
superstructure as required to insert 4 bolts.
5. Insert one bolt at each 90° (for guiding) and lower
superstructure so that there is a very thin gap between slew
ring and carbody.
6. Install all bolts and pre-tighten.
7. Tighten the bolts crosswise with the required torque.
(Refer PARTS & SERVICE NEWS AH 00511 latest edition)
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If approx. 10 bol ts (fro nt and rear) are tigh tened the
superstructur e can be unhooked fr om t he crane.