Case 621C - Engine Removal (721 C)

2000-3
ENGINE
Removal
1. Complete Steps 1 through 40 of the Radiator
Shroud Removal, for removing the radiator
shroud from the machine.
2. Loosen the nuts on the U-bolt for the muffler
clamp.
3. Loosen and remove the nuts, lock washers, flat
washers, and bolts that fasten the bracket for the
muffler to the bracket on the engine.
4. Remove the muffler.
5. Disconnect the wires from the switch for the air
cleaner indicator.
6. Disconnect the hose from the turbocharger.
7. Loosen and remove the nuts and bolts that
fasten the straps for the air cleaner.
8. Remove the air cleaner from the bracket. Use
tape to cover the inlets to the engine and air
cleaner.
9. Loosen and remove the nut, lock washer, and
bolt that fasten the clamp for the wire harness to
the bracket.
10. If the machine is equipped with a heater,
disconnect the hose from the shutoff valve.
Install a plug in the hose.
11 . Loosen and remove the cap screw and external
tooth washer that fasten both ground cables to
the engine.
12. Remove the boot and loosen and remove the nut
and lock washer that fasten the wire to the
battery terminal on the alternator. Remove the
wire.
13. Remove the boot and loosen and remove the nut
and lock washer that fasten the small wire to the
alternator. Remove the small wire.
14. Loosen and remove the cap screw that fastens
the clamp for the wire harness to the engine.
15. If the machine is equipped with a heater,
disconnect the hose from the fitting. Install a plug
in the hose.
Bur 7-12160
16. Disconnect the wire from the temperature
sender.
NOTE: Fasten identification tags to the cables for the
starter solenoid.
17. Disconnect the cables from the battery terminal
of the starter solenoid.
18. Disconnect the cables from the switch terminal of
the starter solenoid.
19. Disconnect the cable from the ground terminal of
the starter.
20. If the machine is equipped with a heater, loosen
and remove the cap screw and lock washer that
fasten the clamps for the hoses to the left side of
the flywheel housing.
21 . Loosen and remove the cap screw and lock
washer that fasten the clamp for the wire
harness to the left side of the flywheel housing.
Loosen and remove the brass nut and brass flat
washer that fasten the wires to the stud in the left
side of the flywheel housing. Remove the wires.
NOTE: If the machine is equipped with an air
conditioner, do Steps 22 through 29. If the machine is not
equipped with an air conditioner, go to Step 30.
22. Make a mark on one of the connectors for correct
assembly.
23. Disconnect the connectors for the compressor.
24. Cut the tie straps that fasten the wire harness to
the fuel line and to the compressor hose.
25. Loosen and remove the cap screw, lock washer,
and flat washer that fasten the adjusting strap for
the compressor.
26. Push the compressor toward the engine and
remove the belt from the pulley of the
compressor.
27. Loosen and remove the nut, lock washer, and flat
washer from the bolt at the base of the
compressor.
28. Remove the bolt and flat washers that fasten the
compressor to the bracket.
Issued 1-99 Printed in U.S.A.