Monster 1519 Owner's Manual page 10

4. In general condition, it is suggested to disassemble and clean
the scooter every 6 months, and add lubricant on moving
parts.Please make sure the parts specifications are correct with
the dealers if some parts can be replaced.
5. If the front fork and wheel or rear support frame and wheels are
not fixed tightly, you can use the wrench to tighten the bolts
properly,but not too much tensely or loosely.
6. The PU wheels are non-durable and may be worn out after some
time's use, and please contact the seller to replace the PU
wheels for safe ride.
7. The wheels and wheel bearings maybe worn out, and you can
change the wheel easily. Remove the centre bolts with two
wrenches and slide the wheel off its fork. Replace new wheel or
wheel bearing, screw in the bolt through aligned fork and wheel,
and then tighten the bolts with two wrenches on each side of
bolts. You must acquire the right wheels or wheel bearings from
the local dealer of this scooter.
8. If the brake cable is loose, please screw out the bolt and nut on
the brake gear, and pull the brake cable out with clamp. When
the brake cable is pulled tensely, please screw in the bolt and nut
on the brake gear at the same time.
9. The self-locking nuts and other self-locking elements might lose
their effectiveness, so please always make sure all components
are assembled and secured sturdily before each use.
10. Lock the scooter away when not in use and never leave the
scooter unattended.
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