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2. There is abnormal noise in the gearbox
· Gears are worn, and the gear meshing surface is corroded or damaged.
• Bearings are worn or damaged.
3. Gearbox oil leakage
· The oil seal is worn or damaged.
· The locking bolts of the gearbox are loose or the joint surface of the gearbox cover leaks oil.
4. Disassembly and decomposition of the gearbox
When disassembling the gearbox, the engine does not need to be removed from the vehicle, but the gearbox oil needs
to be drained and the following parts removed.
Drain the gearbox oil. ( Refer to ZT350T-D Maintenance Manual--Maintenance--Engine Oil-Replace Gearbox Oil )
The parts to be disassembled are as follows:
·Left crankcase cover ( Refer to ZT1P77MP engine maintenance manual -- left crankcase cover, continuously
variable clutch subassembly -- left crankcase cover )
·CVT assembly ( Refer to ZT1P77MP engine maintenance manual -- left crankcase cover, CVT clutch sub-
assembly -- CVT clutch sub-assembly )
·Rear brake oil pipe, rear rocker arm assembly (
Refer to ZT350T-D maintenance manual -- 2. Maintenance -- brake
system -- replace brake disc
)
·Rear wheel assembly (
Refer to ZT350T-D Maintenance Manual-- 2. Maintenance--Brake System--Replace Brake
Disc
)
1. As shown in the picture, use T bar -10# to remove the 6 GB16674M8×40 locking bolts of the gearbox cover.
2. As shown in the figure, remove the gear case cover, gear case cover gasket and positioning pin in sequence.
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