Chapter 2
Disassembly and reassembly of major components
SECTION 1. GENERAL PRECAUTIONS FOR SEPARATION AND REINSTALLATION
1.BEFORE OPERATION
1) Always be safety-conscious in selecting
clothes to wear and suitable tools to use.
2) Before disassembly, be sure that you
familiarize yourself with the assembled
condition for subsequence in reassembly.
3) Keep parts and tools in proper order during
operations.
4) When servicing electrically charged parts,be
sure to disconnect the negative battery
terminal.
5) To prevent oil or water leaks,use the liquid
gasket as required.
6) When lifting up only the front or rear part of
the tractor,be sure to wedge the grounded
wheels.
8) When the tractor is jacked up, be sure to
support the entire tractor with something like a
stand.Lifting it up with a jack only is
dangerously unstable procedure.
9) When replacing parts,use authorized, genuine
TYM parts only.TYM assumes no
responsibility for accidents,operating
problems or damage caused by the use of
imitation parts.
Also,the use of unauthorized parts will
result in relatively poor machine performance.
2. PRECAUTIONS TO BE FOLLOWED
WHEN INSTALLING STANDARDIZED
PARTS.
(1) Roller or Ball bearings
1) When a bearing is fitted in by the outer race,
use an installer which is an specially
designed to push only the outer race and vice
versa.
2) The installer must be designed to install the
bearing on the shaft in a parallel position.
3) When installing a bearing which appears the
same on both sides, install it so that the face
which has the identification number faces
in a direction for easy visual identification.All
the bearings which are to be installed in the
transmission case should be placed so that
their identification number faces outward.
4) If a shaft or hole where a bearing is to be
installed has a stopper,the bearing should be
pushed in completely until it is seated against
the stopper.
5) Installed bearings should turn smoothly.
(2) Oil seals
1) Oil seals installer should be designed so as
not to deform the oil seals.
2-1
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