3
CHECKS AND MAINTENANCE
53
GB
CHAIN
DRIVE CHAIN MAINTENANCE
The life of the drive chain largely depends on its maintenance. Chains without X-
rings must be periodically cleaned in petroleum and then immersed in hot chain oil
or treated with a chain spray.
X-ring chains require very little maintenance. The best way to clean them is rinsing them
generously with water. Never use brushes or solvents to clean an X-ring chain. Once
the chain has dried, you can use a chain spray specially designed for X-ring chains.
Take special care in preventing the lubricant from coming into contact with the rear
tyre or brake disc, otherwise the tyre grip and the action of the brake would be
greatly reduced, making it very difficult to control the vehicle.
DRIVE CHAIN WEAR
To check the wear of the drive chain use
the procedure described below.
Shift into neutral, pull up the upper stretch
of the chain with a force of 10 - 15 kg (see
figure). Measure the length of 18 links on
the lower stretch of the chain. If the length
is ≥ 272 mm, replace the chain. Chains
do not always wear evenly. For this reason
it is important that the measurement is taken
at different points along the chain.
When fitting a new chain, be sure to re-
place the chainring and sprocket as well.
New chains wear more quickly if fitted on
old and worn sprockets. After replacing
the chain, adjust its tension as described
on page 64.
10 -15 Kg
OK < 272
18 steps
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