Transaxle Re-Assembly; Needle Bearing - Bolens DuraTrac DGT 1800 Service Manual

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DRIVE TRAIN (Continued)
5100 SERIES
TRACTOR
PAGE 3-13 Rev. 3/92
TRANSAXLE RE-ASSEMBLY
HYDROSTATIC MODELS
Before re-assembly, check all
Internal parts for excessive wear or
damage and replace If necessary.
USE ONLY GENUINE BOLENS
REPLACEMENT PARTS.
(Figs. 3-13 & 3-14)
Check interior needle bearings inside
housings. If needles show signs of
pitting or any other damage, replace
them. Use a needle bearing driver
and seat bearings to a depth of 1/32"
to 1/16" (0.78 --1.57 mm) below the
machined surface for the upper two
bearings. The interior axle bearing
must be seated to a depth of 1/4" (6.4
mm) below the machined surface.
NOTE
ALWAYS INSTALL THE NEEDLE
BEARINGS WITH THE STAMPED
END (THE END WITH
IDENTIFICATION MARKINGS)
AGAINST THE BEARING DRIVING
. TOOL.
(Fig.
~14)
Check exterior axle bearings in ends
of axle housings. Service these
bearings the same as interior
bearings. Exterior bearings should
be seated 1/32"to 1/16" (0.78 -1.57
mm) below counter bore for the axle
seal.
Axle seals should be replaced
whenever unit is disassembled. Use
a seal driver to drive seals until they
bottom in axle housing counter bore
NOTE: REFER TO PAGE 3·19 FOR
BEARING AND SEAL
INSTALLATION PROCEDURES.
SEAT SIDE
:._~)f---t?I-HDUSING
NEEDLE
Fig. 3·13
Install differential carrier I axle
assembly into the left side housing.
Be careful not to damage axle seal
when installing it in end of housing.
Make sure all shims and washers
are in place as they were when
removed. See Figs. 3-14 & 3-15 for
reference.
BEARING TO A
DEPTH OF 1/32 TO
1/16"
SEAT AXLE
BEARING TO A
DEPTH OF 1/4"
EXTERIOR AXLE
BEARINGS/EXTERNAL
AXLE BEARING ASS'Y
~
AXL~
!ousJNG
~
AXLE SEAL
Fig. 3·14