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iii. Trouble shooting of running mechanism
Phenomenon Cause Solution
Too high noise from gear Too heavy wear or incorrect repair of
gear
Reinstall, adjust or replace
gear
Seizure of gear during its
rotation
Incorrect installation Reinstall it
Lubricant inside box is too
insufficient
Add engine oil as required
Lateral clearance of gear is too small
Reinstall gear
Overheating
Axial internal clearance is too small Reinstall gear
Connecting bolt is loose Retighten bolt Oil leak from connections of
transmission box
Seal gasket is damaged Replace seal gasket
Oil leak from outer
cylindrical surface of output
shaft bush
Oil seal here is damaged Replace oil seal B 45×62×
8
Severe oil leak from
transmission countershaft’s
hexagon hole
The countershaft is broken Replace countershaft
Seal gasket is damaged Replace Φ10×1.8 O ring Oil leak from oil drain hole
Threaded plug is loose Retighten threaded plug as
required
Oil leak from transmission
box wall
Hidden pinholes in the transmission
box wall
Repair by welding or
applying base coat
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