PERIODIC MAINTENANCE 2-27
DRIVE CHAIN ADJUSTMENT
• Loosen the axle nut
1.
• Loosen the lock-nuts
2 and adjust the drive chain slack to the
specification by turning the adjusters
3. Make sure that the
right and left adjuster washers
4 are at the same position on
scales
5.
• With the adjusters
3 held in position, tighten the lock-nuts
2.
• Push the adjuster washers
4 to the adjusters
3 and tighten
the axle nut
1.
! Axle nut: 100 N·m (10.0 kgf-m, 72.5 lb-ft)
• Tighten the lock-nut
2.
DRIVE CHAIN PLATE WEAR
• Measure the heights of the inner
A and outer
B plates using
the vernier calipers.
• If any of the measurements exceeds the service limit, replace
the drive chain with a new one.
" Chain plate height:
Service Limit: (Inner
A) : 12.75 mm (0.502 in)
(Outer
B): 11.20 mm (0.441 in)
# 09900-20101: Vernier calipers
• Visually check the drive chain for the possible defects listed
below.
* Loose pins * Excessive wear
* Damaged rollers * Missing O-ring seals
* Dry or rusted links * Kinked or binding links
If any defect is found, the drive chain must be replaced.
NOTE:
When replacing the drive chain, replace the drive chain and
sprockets as a set.
O-ring seal
Pin
Roller
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