Lombardini LDW 502, Service Manual

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service manual
mod. 051135
7
D
D
G1
H1
H
G
4 - Insert tool “7107-1460-049” in the tensioner
holder lever.
5 - Calibrate the torque wrench to 20 Nm and
insert it into the tool, with the lever
perpendicular to the belt.
6 - Loosen the nut slightly (D).
7 - Turn the torque wrench clockwise to
tighten the belt to 20 Nm. Once the
specified torque is reached (20 Nm),
tighten the nut (D) temporarily without
allowing the belt tension to loose.
8 - Mount the pulley (G1).
9 - Tighten the nut (D) to a final torque of
40Nm.
10 - Rotate the crankshaft a few times to settle
and position the belt correctly.
11 - Before doing so, make sure that the pulley
notches (crankshaft and camshaft) are
lined up with their respective timing
notches.
12 - Insert the tool again into the lever on the
pulley nut support and repeat all the steps
to check belt tension.
13 - Disassemble the pulley (G1).
7.7.3 Assembling the belt drive cover
1 - Mount the guard (G), without tightening the
screws completely.
2 - Tighten the screws in an alternating pattern
to a final torque of 10 Nm.
Important
If replacement of the optional dust guard
rings (H-H1) and the peripheral sleeve
becomes necessary for technical or
construction reasons, please request the
pre-assembled guard (G) complete with
rings and gaskets.
tool
7107-1460-049
tensioner
holder
INSTALLATION OF ASSEMBLIES