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TM5-4210-229-14&P
6-15.
TRANSMISSION REPAIR (Continued).
(f)
Attach the main pressure regulator and
lockup spring compressor and adapters to
the front support. Tighten the compressor
screws, removing all forces from the pin
retainers (178, and 179). Remove the
pins (178 and 179).
(g) Carefully loosen the screws on the spring
compressor until it can be removed from
the front support. Remove valve stops
(180 and 181), valve springs (177 and
182), regulator valve (183) and lockup
valve (184).
(h) Remove the fourteen bolts (185 and 186)
that hold the oil pump and the front
support together.
(i)
Separate front support assembly (171)
from oil pump body and gear assembly
(187).
(j) If ground sleeve (188) is damaged and
support (189) is serviceable, press the
sleeve out of the support. Mark the
position of the lube passage in the ground
sleeve on front support prior to removal for
correct installation of the new sleeve. If
movement is detected, the parts must be
replaced as an assembly.
(k) If replacement of plug (190) is necessary,
remove the plug from the circumference
of support.
(l)
Remove oil pump gears (191 and 192)
from oil pump body (193).
(m) If body (193) is damaged, replace oil
pump assembly (187).
(n) Remove oil seal (194) from oil pump body
(193).
(o) Determine
the
serviceability
of
the
sealring grooves on the front support hub.
Insert, do not force, gauge into the groove
on the support hub. Rotate the gauge 360
degrees around the hub. If the gauge
does not rotate freely, the support is
damaged and should be replaced.
(2)
Assembly.
NOTE
If an oil seal installer is not available, install the
seal, spring loaded lip first, into the seal bore of
the oil pump. Press the seal to 0.050-0.070 inch
(1.27-1.79 mm) below the front surface of the
pump body.
(a) If oil seal (194) was removed from oil
pump body (193), install a new one.
Place the oil pump body on the work
table, flat side down. Seat the oil seal on
the installer with the spring loaded lip
facing away from the tool. Attach driver
handle to the oil seal installer. Drive the
seal into the pump housing. Remove the
seal
installer
and
apply
a
high
temperature seal lubricant (Appendix D,
Item 22) to the inside diameter of the oil
seal (194).
(b) Invert oil pump body, flat side up. Install
drive gear (192) and driven gear (191)
into the oil pump body. Place a straight
edge across the surface of the oil pump.
Insert a thickness gauge between the
straight edge and the driven gear (191).
Measurement can also be made with slide
gauge tool. If the clearance is not 0.001-
0.003 inch (0.025-0.076 mm) selective
driven gears are available. Repeat the
above procedure for drive gear (192); if
clearance
is
not
0.0012-0.0020
inch
(0.030-0.051 mm) selective drive gears
are available.
(c) If plug (190) was removed from support
(189),replace it. Press the plug into the
bore to 0.010 inch (0.25 mm) below
counterbore support assembly.
6-63
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