404G2 SERIES TRACTOR OPERATION MANUAL
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⑥ Steering ball is abraded seriously ⑥ Replace
(3) Too big noise
① Front bevel transmission gear engage
badly
② Bevel transmission bearing clearanced is
too large or the bearing is broken
③ Differential shaft are worn or damaged
④ Planetary gear or washer are abraded
⑤ Final transmission bevel pair engage
badly
① Adjust
② Adjust or replace
③ Replace
④ Replace
⑤ Replace or change the number
of adjusting washers
7.6 Walking system
Troubles & possible causes Fixing methods
(1) The front wheels are swaying
① Clearance of front wheel shaft bearing is
too large
② Ball joint is abraded heavily
③ The front wheel toe-in adjust improperly
④ The front wheel rim deformed seriously
① Adjust to the request
② Replace
③ Adjust
④ Correct
(2) The front tires are worn quickly
① The front wheel toe-in adjust improperly
② The pressure of front tires is improper
③ Mistaking the direction of the tread
pattern
① Adjust
② Charge the tires correctly
③ Reinstall
7.7 Hydraulic steering system
Troubles & possible causes Fixing methods
(1) Oil leaks
① Bolt at the pipe joint loose
② Rubber ring at the pipe joint or crankshaft
journal is broken
③ The washer is uneven or broken
① Fasten the bolt
② Replace
③ Replace
(2) Steering is too heavy
① Great pump supply oil insufficiently,
inside leak or filter net in the oil case
blocked.
② Air in the steering system,oil with foam
③ Steering oil case supply oil insufficiently
① Checkup pump and clean filter
net
② Eliminate air and checkup
③ Replenish oil to specified level
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