3 9
18-10-2004
18-10-2004
00
REG. CODE
1-5302-662
MODEL N°
51092
DATE OF ISSUE
REVISION
ENDORSED
COMPILER TECO/ATI
DATE
XI
54
55
56
51
52
53
DISASSEMBLY/REASSEMBLY
When removing the timing belt, this should be replaced even if its scheduled motion period
is not over.
The toothed timing belt should not be tensioned during the scheduled motion period
Toothed timing belt - Disassembly
Once the relevant parts – i.e. crankshaft and camshaft – have been set in timing phase following to the procedures explained
before, the toothed timing belt can be disassembled.
First loosen the belt tightener fastening nut (fig. 51), then push the tightener upwards until it lays against the cover and lock it
in this position by retightening the nut.
This operation allows to release the tension on the toothed timing belt, thus enabling its removal (fig. 52).
Toothed timing belt - Reassembly
Loosen the fastening nut of the toothed timing pulley, controlling the camshaft, so that it can rotate freely on the shaft (fig. 53).
Insert the new toothed belt on the crankshaft pulley first, then on the camshaft one (fig. 54).
When assembling, pay special attention to the timing belt rotation direction. The direction is specified by the arrows on the belt
(fig. 55), which should point the engine rotation direction, i.e. clockwise.
Unscrew the belt tightener fastening nut to allow the spring to extend and press onto the tightener itself, thus tensioning the
toothed timing belt (fig. 56).
Summary of Contents for LDW 422 SERIES
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