Mash Side 400 Mode D'emploi page 42

on the chain adjuster until the specified tension is achieved, and
then fasten the rear wheel spindle nut, and check the flexibility for
free rotation of the rear wheel and the consistency of the front and
rear wheels.
Adjustment
Unscrew the rear wheel spindle nut
Caution
The scale lines of the chain adjuster on both sides must
be consistent with each other.
Warning
The rear wheel spindle nut must be firmly screwed up to
the tightening torque of 50-60N.m.
Clean and inspection of chain
First, remove the chain by detaching the spring locking pieces
and the removable chain plate.
Use cleaning liquid to wash the driving chain and remove dust
and mud, and then air dry it; check the chain for abrasion or
cracking, and replace it in case of damage.
Remount the chain and coat it with chain-specific lubricant;
while mounting the chain, the spring locking pieces shall be in the
opposite direction with the chain movement, the left and right scale
lines of the chain adjuster shall be consistent and the chain swag
(tension) shall be 20-30mm.
Inspect the abrasion of major / minor sprocket. In case of
serious tooth abrasion, teeth missing or broken teeth, replace it.
Caution
This model uses the oil seal chain, so the selected
washing oil shall be in corrosive to the oil seal; while
assembling the chain, the locking piece coupling spindle shall
be coated with appropriate amount of chain-specific
lubricating oil.
Warning
While mounting the spring locking pieces, its opening
end shall be in the opposite direction with the normal
movement of the driving chain.
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