Fiat Kobelco EX355 Tier2, Technical Manual

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W1-2-4 EX355
TIGHTENING TORQUE
Service Recommendations for Split Flange
IMPORTANT
(1) Be sure to clean and inspect sealing surfaces.
Scratches / roughness cause leaks and seal
wear. Unevenness causes seal extrusion. If de-
fects cannot be polished out, replace the compo-
nent.
(2) Be sure to use only specified O-rings. Inspect O-
rings for any damage. Take care not to file O-ring
surfaces. When installing an O-ring into a groove,
use grease to hold it in place.
(3) Loosely assemble split flange halves. Make sure
that the split is centrally located and perpendicular
to the port. Hand-tighten the bolts to hold the parts
in place. Take care not to pinch the O-ring.
(4) Tighten bolts alternately and diagonally, as
shown, to ensure even tightening.
(5) Do not use air wrenches. Using an air wrench
often causes tightening of one bolt fully before
tighten the others, resulting in damage to O-rings
or uneven tightening of bolts.
Nut and Bolt Lockings
• Lock Plate
IMPORTANT-
Do not reuse lock plates. Do not try to
bend the same point twice.
• Cotter Pin
IMPORTANT- Do not reuse cotter pins. Match the
holes in the bolt and nut while tightening, not while
loosening.
• Lock Wire
IMPORTANT -
Apply wire to bolts in the bolt-tighten-
ing direction, not in the bolt-loosening direction.
SM1007
SM1008
WRONG
SM1010
SM1011
SM1009
RIGHT WRONG
Bend along edge sharply Do not bend it round
RIGHT RIGHT WRONG
Bend along edge sharply
RIGHT RIGHT WRONG
RIGHT WRONG
Loosen
Tighten