Husqvarna TC 250 2009 Manual De Uso página 105

MUM2-250_310_450_510_2009_GB
2 - Check that the chain is neither worn out nor damaged. If the
rollers or the links are damaged, replace the chain by fol-
lowing the instructions given in the Periodical Maintenance
Table.
3 - Check that neither the sprocket nor the crown are damaged.
4 - Wash and clean the chain as described hereunder.
Washing the chain without OR (TC 250)
Wash using either oil or diesel oil. When using gasoline or tri-
cloroetilene, clean and lubricate the chain to prevent oxidation.
Washing the chain with OR
Wash using oil, diesel oil, or paraffin oil. Never use gasoline,
tricloroetilene, or solvents, as the OR may suffer damages.
Use instead special sprays for chains with OR.
Lubricating the chain without OR (TC 250)
First dry, then plunge the chain in a bisulphide molybdenum
lubricant, or in high viscosity engine oil. Warm up the oil be-
fore use.
18-11-2008 11:18 Pagina 39
Lubricating the chain with OR
Lubricate all metallic and rubber (OR) elements using a brush,
and use engine oil with SAE 80-90 viscosity for the internal
and external parts.
5 - If the chain has been cut, reassemble using a joint.
6 - Assemble the joint spring (a) by turning the closed side to
the chain direction of rotation as shown in figure below.
NOTE*: Even if all the joints are reusable when in good con-
ditions, for safety purposes we advise using new joints when
reassembling the chain.
7 - Accurately adjust the chain as described on page 37.
1
4
2
3
WARNING: The chain oil has NEVER to get in
contact with the tires or the rear brake
disk.
Chain tension rollers, chain driving roller,
chain guide, chain runner
Check the wear of the above mentioned elements and replace
them when necessary.
WARNING*: Check the chain guide aligne-
ment, and remember that a bent element
can cause a rapid wear of the chain. In this
case, a chain fleeting from the sprocket
may ensue.
a
1- Chain tension roller
2- Chain driving roller
3- Chain guide
4- Chain slider
a- Joint spring
39