Group
21
Reconditioning engine
Cleaning, checking
C33
Clean,
check chains and sprockets
Check for damage and wear.
IMPORTANT! If damaged, replace chains and sprockets to-
gether. Also replace oil strainers behind tensioners.
C34
Clean,
check flywheel (man. gearbox) and carrier
plate (auto.)
Carrier plate with ring gear must be replaced as one
unit.
Damaged or worn flywheel must be replaced with ring
gear attached. Ring gears can be replaced separately.
New flywheels are rustproofed and should be washed
(degreased) prior to assembly.
Replacing ring gear
Operations C35-39
C35
Heat new ring gear to
+230°C (446T)
Heat in an oven or by oxyacetylene flame.
If oven is to be used begin heating now. With oxyace-
tylene,
heat just before installation.
C36
Drill hole between two cogs
Use a 10 mm (0.4 in)
drill.
Hole depth = 9 mm (0.35 in).
IMPORTANT! Do not drill into flywheel since it may
become
out-of-balance.
36
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