TM 5-2420-230-24-1
Maintenance & Service Manual
R & HR32000 3 & 6 Speed LD
SERVICING MACHINE AFTER TRANSMISSION OVERHAUL
The transmission, torque converter, an d its allied hydraulic system
5. On remote mounted torque converters remove drain plug from
are important links in the drive line between the engine and the wheels.
The proper operation of either unit depends greatly on the condition and
etc. If presence of considerable foreign material is noted, it will
operation of the other; therefore, wherever repair or overhaul of one unit
be necessary that converter be removed, disassembled and
is performed, the balance of the system must be considered before the job
cleaned thoroughly. It is realized this entails extra labor;
can be considered completed.
however, such labor is a minor cost compared to cost of
difficulties which can result from presence of such foreign
After the overhauled or repaired transmission has been installed in the
material in the system,
machine, the oil cooler, and connecting hydraulic system must be
thoroughly cleaned. This can be accomplished in several manners and a
6. Reassemble all components and use only type oil recommended in
degree of judgment must be exercised as to the method employed.
lubrication section. Fill transmission through filler opening until
fluid comes up to LOW mark on transmission dipstick. NOTE: If
The following are considered the minimum steps to be taken:
the dipstick is not accessible oil level check plugs are provided.
1. Drain entire system thoroughly.
Remove LOWER check plug, fill until oil runs from LOWER oil
hole, Replace filler and level plug.
2. Disconnect and clean all hydraulic lines. Where feasible, hydraulic
lines should be removed from machine for cleaning.
Run engine two minutes at 500-600 RPM to prime torque
converter and hydraulic lines. Recheck level of fluid in
3. Replace oil filter elements, cleaning out filter cases thoroughly,
transmission with engine running at idle (500-600 RPM).
4. The oil cooler must be thoroughly cleaned. The cooler should be
Add quantity necessary to bring fluid level to LOW mark on
"back flushed" with oil and compressed air until all foreign
dipstick or runs freely from LOWER oil level check plug hole.
material has been removed. Flushing in direction of normal oil
Install oil level plug or dipstick. Recheck with hot oil (180-200
flow will not adequately clean the cooler. If necessary, cooler
F,) [82,2-93, 3 C].
assembly should be removed from machine for cleaning, using
oil, compressed air and steam cleaner for that purpose. DO NOT
Bring oil level to FULL mark on dipstick or runs freely from
use flushing compounds for cleaning I purposes.
UPPER oil level plug.
7. Recheck all drain plugs, lines, connections, etc., for leaks and
tighten where necessary.
TORQUE IN (LBS.--FT.)
BOLTS, CAPSCREWS, STUDS AND NUTS
Grade 5 Identification, 3 Radial
Grade 8 Identification, 6 Radial
Dashes 120 Apart on Head of Bolt
Dashes 60 Apart on Head of Bolt
Nominal
Fine Thread
Course Thread
Fine Thread
Course Thread
Size
Torque Lbs. Ft./N.m.
Torque Lbs. Ft./N.m.
Torque Lbs. Ft./N.m.
Torque Lbs. Ft./N.m.
.3125
16-20 [21,7-27,1]
12-16 [16,3-21,7]
28-32 [38,0-43,4]
26-30 [35,3-40,7]
.3750
26-29 [35,3-39,3]
23-25 [31,2-33,9]
37-41 [50,2-55,6]
33-36 [44,7-48,8]
.4375
41-45 [55,6-61,0]
37-41 [50,2-55,6]
58-64 [78,6-86,8]
52-57 [70,5-77,3]
.5000
64-70 [86,8-94,9]
57-63 [77,3-85,4]
90-99 [122,0-134,2]
80-88 [108,5-119,3]
.5625
91-100 [123,4-135,6]
82-90 [111,2-122,0]
128-141 [173,5-191,2]
115-127 [156,0-172,2]
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