Ii Disassembly / Reassembly - Lombardini LDW 502 Workshop Manual

II DISASSEMBLY/REASSEMBLY
COMPILER TECO/ATI
32
AIR FILTER SUPPORT- (INTAKE MANIFOLD)
REMOVAL: Disassemble the air filter cover and air filter element.
Loosen the crankcase ventilation hose (see page 29) and pull the
hose from the air filter support. Remove all bolts that secure the air
filter support (1) to the cylinder head. Carefully pull the air filter
support from the cylinder head. Using suitable pliers, release the
governor spring (2) from the air filter support assembly.
INSPECTION: Carefully clean the gasket (3) from the air filter
support and the cylinder head. Clean the air filter support with
solvent. Dry with compressed air. Inspect the air filter support for
cracks or warpage. Replace as required.
INSTALLATION: Using a new gasket, install the air filter support by
reversing the procedure detailed above. Torque the air filter support
in three(3) steps to 29.6 Nm.
EXHAUST MANIFOLD
REMOVAL: Disconnect the equipment exhaust system. Remove the
nuts that affix the exhaust manifold to the cylinder head.
INSPECTION: Carefully clean all gasket material form the exhaust
manifold and the cylinder head. Remove all carbon deposits. Check
the exhaust manifold mounting flange for warpage and flatness.
Inspect the exhaust manifold for cracks and heat stress. Replace as
necessary.
INSTALLATION: Using new gaskets, install the exhaust manifold to
the cylinder head by reversing the removal procedure. Torque the
exhaust manifold nuts to 24.5 Nm.
COOLING FAN
REMOVAL: Loosen and remove the four(4) bolts and the stress plate
attaching the cooling fan to the cooling fan support.
INSPECTION: Inspect the entire cooling fan for cracks, stress
damage, indications of contact with the shroud and brittleness.
Replace the cooling fan if ANY damage is noted.
INSTALLATION: Install the stress plate and bolts. Torque the bolts to
20.0 Nm.
ALTERNATOR / COOLING FAN DRIVE BELT
REMOVAL: Loosen bolts (1) and (2). Pivot the alternator so that the
belt can be removed. Remove the belt.
INSPECTION: Inspect the belt for brittleness, cracks and general
appearance. Replace the belt if any irregularities are noted.
INSTALLATION / ADJUSTMENT: Install the belt over the cooling fan
support, crankshaft pulley and alternator pulley. Pivot the alternator,
thus tensioning the belt. Adjust the belt tension so that a 100N force
at the midpoint of the belt center (as shown) results in a 10-15mm
deflection. Tighten bolts (1) and (2). DO NOT OVER TIGHTEN THE
BELT.
REG. CODE
MODEL N°
1-5302-351 50563
DATE OF ISSUE
04
REVISION
04.90
DATE ENDORSED
15.11.99