Massimo MSU 400, Owner'S Manual, Page: 158 / 179

Periodic Maintenance and Adjustment 8-57
3. Check the inner splines of rear wheel hubs and outer
splines of rear wheel axles to find out if they are worn or
broken.
4. Check the lock screws of rear wheels and axles to find out
if they are loose or broken.
4
Rear wheels shake during
use.
5. Check rubber bush’s between the rear suspension and
frame to find out if they are broken.
1. Check if the rims are deformed.
2. Check if the rear wheel axles are bent.
5 Wheels jump during use.
3. Check if the tires are worn or deformed.
1. Check if overloaded.
2. Check if the springs are two soft after long time running.
6
Shock absorbers become
soft and not comfortable
during use.
3. Check if the shock absorbers lose their damping force in
their travel.
1. Check if the spline of intermediate driving shaft is broken.
2. Check if the splines in left & right drive shafts of front & rear
bridges are broken.
3. Check if the gears in rear bridge reduction gear box and
differential are over worn.
7
Front bridge makes noise
during use.
4. Check the dust cover of constant velocity universal joint in
right & left drive shafts.