POWER TRAIN RT880E SERVICE MANUAL
7-30 Published 11-10-2014, Control # 524-00
Installation
NOTE: The transmission/torque converter assembly
weighs approximately 990 lb (450 kg) dry.
1. If a new transmission/torque converter is to be installed,
remove all fittings and brackets from the old one and
install them in the same locations on the new transmis-
sion/torque converter.
2. Install the piston and single section hydraulic pumps on
the transmission/torque converter. Refer to Hydraulic
Pumps, page 2-13 for installation of the hydraulic pump.
3. Position the transmission/torque converter to the engine
with the lifting device.
4. Remove all burrs from the flywheel mounting face and
nose pilot bore. Clean the drive plate surface with sol-
vent.
5. Check the engine flywheel and housing for conformance
to standard S.A.E. No. 3-S.A.E. J-927 tolerance specifi-
cations for bore size, pilot bore runout and mounting
face flatness. Measure and record engine crankshaft
end play.
6. Install the 12 studs in the engine flywheel housing.
Rotate the engine flywheel to align a drive plate mount-
ing screw hole with the flywheel housing front access
hole.
7. Install a 4.00 in (101.6 mm) long drive plate locating stud
0.3750-24 fine thread in a drive plate nut.
8. Rotate the transmission/torque converter to align the
locating stud in the drive plate with the flywheel drive
plate mounting screw hole positioned in step 6. Locate
the transmission on the flywheel housing, aligning the
drive plate to the flywheel and the transmission on the
flywheel housing mounting studs. Install the transmis-
sion to flywheel housing nuts and washers. Tighten the
nuts to 30 lb-ft (40.7 Nm).
9. Remove the drive plate locating stud. Install one drive
plate attaching screw and hardened flatwasher. Snug
the screw but do not tighten. NOTE: Some engine fly-
wheel housings have a hole located on the flywheel
housing circumference in line with the drive plate screw
access hole. A screwdriver or pry bar used to hold the
drive plate against the flywheel will facilitate installation
of the drive plate screws. Rotate the engine flywheel and
install the remaining seven flywheel to drive plate attach-
ing screws and hardened flatwashers. Snug the screws
but do not tighten. After all eight screws and lockwash-
ers have been installed, torque the screws to 28 lb-ft
(38 Nm). This will require torquing each screw, then
rotating the engine flywheel until all eight screws have
been torqued.
10. Measure the engine crankshaft end play after the trans-
mission/torque converter has been completely installed
on the engine flywheel. This value must be within
0.001 in (0.025 mm) of the end play recorded in step 5.
11. Install the engine and transmission/torque converter in
the crane as an assembly. Refer to Power Train, page 7-
1.
12. Service the crane as required in Servicing the Crane
After Transmission/Torque Converter Overhaul, page 7-
32.
13. Cycle all functions and observe for proper operation.
Towing or Pushing
Before towing the crane, disconnect both front and rear drive
lines. The engine can not be started by pushing or towing
because of the design of the hydraulic system.
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