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Case 621C - Engine Installation (621 C)

Case 621C
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89. Remove the mounting bolts (6), washers (7), and
nuts (8) from the front engine weldment mount
(3), refer to Figure 1.
90. Move the engine rearward while raising the
engine at the same time. Be sure all harnesses
and hoses are disconnected and out of the way.
91. Remove the engine from the machine.
Installation
1. Make sure the torque converter is installed on
the transmission. Three splined shafts must be
engaged for the torque converter to be installed
correctly.
2. Install a stud 70 mm (2-3/4 inches) long with 10
mm threads in one of the holes in the flex plates
so the stud is to the left side. Make sure the flex
plates are not bent or damaged.
3. Carry the engine over the frame. Move the
engine forward and lower the engine.
4. Push the engine toward the front. Have another
person align the stud with the hole in the
flywheel.
5. Install the CAS-1690 tool to turn the flywheel.
Remove the stud from the flex plates and install
an Allen head screw.
6. Rotate the flywheel and install the remaining
Allen head screws.
7. Tighten all of the Allen head screws to 43 to 49
Nm (384 to 432 pound-inches).
8. Remove the CAS-1690 tool and install the plastic
plug in the flywheel housing.
9. Install the cover. Install the cap screw and tighten
both cap screws.
10. Install the mounting bolts (6), washers (7), and
nuts (8). Tighten the bolts to 109 to 130 Nm (80
to 96 pound-feet).
11. Install the hose and the filler pipe. Install the
bolts, lock washers, and nuts. Tighten the nuts.
Tighten the bottom clamp for the hose.
12. Start the vacuum pump.
Bur 7-12150
2000-7
13. Connect the brake pump inlet and outlet lines.
14. Stop the vacuum pump.
15. Remove the vacuum pump from the hydraulic
reservoir. Replace the cap on the reservoir.
16. Install the cap screws and lock washers that
fasten the clamps for the wire harness and the
bracket for the heater hose to the flywheel
housing. Install the remaining cap screws and
lock washers and nuts and lock washers that
fasten the transmission to the flywheel housing.
Tighten the cap screws and nuts to 47 to 57 Nm
(420 to 504 pound-inches).
17. Install the panels under each side of the cab.
18. Install and tighten the cap screws.
19. Disconnect the lifting equipment from the engine.
20. Install the cap screw, lock washer, and clamp
that fasten the wire harness to the right side of
the flywheel housing.
21. Remove the plug from the heater hose and
connect the heater hose.
22. Remove the plug from the hose and connect the
hose to the fuel return line. Remove the plug
from the fuel supply hose and connect the fuel
supply hose to the hand primer pump.
23. Install the clamp, bolts, flat washers, lock
washers, and nuts that fasten the throttle cable to
the bracket. Tighten the nuts.
24. Connect the throttle cable to the pin in the lever
on the fuel injection pump.
25. Connect the wire harness.
26. Install the cap screw and lock washer that fasten
the clamp for the wire harness to the engine.
Tighten the cap screw.
27. Connect the wire harness to the oil pressure
switch.
28. If equipped with ether injection, connect the tube
fitting to the intake manifold.
29. If equipped with optional gauges, connect the
wire to the sender for the oil pressure gauge.
Issued 1-99 Printed in U.S.A.

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