Adjust the chain slack.
Loose the lock bolts (4 pcs) then adjust the drive chain
slack by turn the adjusting nut.
Tighten the four lock bolts.
When the drive chain becomes very dirty, it should be
removed, cleaned and lubricated by specify lubricator.
Using commercial chain lubricant to lubricate the drive
chain.
Clean the drive chain with kerosene and wipe it dry.
Inspect the drive chain for possible wear or damage.
Replace the chain, if it is worn excessively or damaged.
Inspect the sprocket teeth, if it is excessive wear
or damage, replace it.
Inspect the chain-tensioned roller.
Replace it, if necessary.
2.10 BRAKE SYSTEM
Inspect the front brake lever and cable for excessive
play or other damage.
Replace or repair if necessary.
Measure the free play of the brake lever at the end of the
brake lever.
The standard of free play is 15-25 mm.
