7-26 Published 08-25-09, Control # 077-04
POWER TRAIN RT9130E SERVICE MANUAL
Removal
1. Extend and set the outriggers just enough to take up the
slack in the outrigger pads. Chock the wheels.
2. Position the boom over the side and stop the engine.
3. Remove the front section of the engine hood.
4. Refer to DRIVE LINES in this section and disconnect the
drive line from the torque converter.
5. Tag and disconnect all hydraulic lines from the torque
converter to the transmission and the transmission oil
cooler. Cap all lines and openings.
6. Remove the two-section and single section hydraulic
pumps from the transmission/torque converter. Cover all
openings. Refer to Hydraulic Pumps in Section 2 -
HYDRAULIC SHSTEM for removal of the pump.
NOTE: The torque converter weighs approximately 225 kg
(500 pounds) dry.
7. Attach an adequate lifting device to the torque converter
and take up any slack.
8. Remove the screws and lockwashers securing the drive
plate assembly to the flywheel.
9. Remove the bolts and washers securing the torque
converter housing to the engine flywheel housing.
Installation
NOTE: The torque converter assembly weighs
approximately 225 kg (500 pounds) dry.
1. If a new torque converter is to be installed, remove all
fittings and brackets from the converter one and install
them in the same locations on the new torque converter.
2. Position the torque converter to the engine with the
lifting device.
3. Remove all burrs from the flywheel mounting face and
nose pilot bore. Clean the drive plate surface with
solvent.
NOTE: Refer to (Figure 7-15) for a typical transmission/
torque converter installation.
4. Check the engine flywheel and housing for conformance
to standard S.A.E. No. 1-S.A.E. J-927 tolerance
specifications for bore size, pilot bore runout and
mounting face flatness. Measure and record engine
crankshaft end play.
5. Rotate the engine flywheel to align a drive plate
mounting screw hole with the flywheel housing front
access hole.
6. Install a 101.6 mm (4.00 inch) long drive plate locating
stud 7/16-20 UNF thread in a drive plate nut.
7. Rotate the torque converter to align the locating stud in
the drive plate with the flywheel drive plate mounting
screw hole positioned in step 5. Locate the torque
converter on the flywheel housing. Install the torque
converter to the flywheel housing nuts and washers.
Tighten the bolts to 39 to 43 Nm (29 to 32 foot-pounds).
3. Overheating. a. Worn oil sealing rings. a. Remove, disassemble, and
rebuild converter assembly.
b. Worn oil pump. b. Replace pump. Refer to your
Manitowoc Crane Care Parts
Manual.
c. Low oil level. a. Fill to proper level. Refer to
Section 9 - LUBRICATION
4. Noisy converter. a. Worn oil pump. a. Replace pump.
b. Worn or damaged bearings. b. A complete disassembly will be
necessary to determine what
bearing is faulty.
5. Lack of power. a. Low engine RPM at converter
stall.
a. Tune engine and check
governor.
b. See “Overheating” and make
same checks.
b. Make corrections as explained
in “Overheating.”
SYMPTOM PROBABLE CAUSE REMEDY
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