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4. Walking case has problem
Problem
Reason
Solution
Gear has big noise
Gears worn out or not assemble well
Change or assemble
again
Gears block
Not assemble well
Assemble again
Over heat
Oil in case is little
Add oil
Gears clearance too narrow
Assemble again
Axle direction clearance is too small
Adjust
Transmission box
connecting
place
leak oil
Connection bolts loosen
Tight
Oil leak out
Gasket broken
Change
Output shaft sleeve
outside leak oil
Oil seal broken
Change
Output shaft sleeve
inner hole leak oil
Sleeve broken
Change
Drain hole leak oil
O ring broken
Change
Plug loosen
Tight
Case leak oil
Case has some small hidden hole
Welding or paint
Gear shift axle
leak oil
O-ring invalid
Change
Flange connection
leak oil
Bolt loosen
Tight
Steel gasket broken
Change