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Case 621C - Engine Removal (621 C)

Case 621C
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2000-3
ENGINE
Removal
1. Park the machine on a level surface and lower
the loader bucket to the floor. Stop the engine
and apply the parking brake.
2. Let the engine cool. Loosen and remove the
radiator cap. Drain the cooling system. The drain
valve is located at the right front side of the
radiator. The cooling system holds 26.5 litres (28
U.S. quarts) of coolant.
3. Open the access door on each side of the engine
compartment.
4. Turn the battery disconnect switch to the OFF
position.
5. Open the grille.
6. Loosen and remove the precleaner. If the air
cleaner is equipped with a cap, loosen the clamp
and remove the cap.
7. Remove the plugs and loosen and remove the
cap screws, lock washers, and flat washers that
fasten the hood.
8. Connect suitable lifting equipment to the hood
and remove the hood.
9. Loosen and remove the nuts, lock washers, flat
washers, and carriage bolts that fasten the lower
side panels. Remove both lower side panels.
10. Disconnect the ground cable from the batteries.
11 . Disconnect the positive cable from the batteries.
12. If equipped with a backup alarm, disconnect the
wires from the backup alarm.
13. Loosen and remove the nut, lock washer, and
bolt that fasten the clamp for the wire harness to
the top right side of the radiator shroud.
14. Cut the tie strap that fastens the wire harness for
the lamps at the right side of the radiator shroud.
Disconnect both connectors.
15. Repeat Steps 13 and 14 for the left side of the
radiator shroud.
16. If equipped with ether injection, disconnect the
wire harness and disconnect the tube from the
valve assembly.
Bur 7-12150
17. Cut the tie strap that fastens the hoses and wire
harness.
18. Loosen and remove the nuts and lock washers
that fasten the clamps for the wire harness and
hose to the left side of the radiator shroud.
19. Disconnect the hose from the bottom of the
coolant reservoir and drain the coolant reservoir.
20. Loosen and remove the hardware that fastens
the rear of each side of the radiator shroud to the
frame.
21 . Loosen and remove the nuts, lock washers, and
flat washers that fasten each side of the baffle for
the battery compartment to the frame.
22. Loosen and remove the nut, lock washer, flat
washer, and bolt that fasten the right side of the
battery cover to the support. Remove the
support.
23. Loosen and remove the self-locking nut, flat
washers, and bolt that fasten the brace to the left
side of the battery cover. Loosen and remove the
remaining hardware that fastens the support to
the left side of the battery cover. Remove the
support.
24. Loosen and remove the cap screws, lock
washers, and flat washers that fasten the battery
cover to the baffle. Remove the battery cover.
25. Remove the baffle. If necessary, loosen the J-
bolts for the clamp on the front battery and move
the front battery toward the rear to remove the
baffle.
26. Disconnect the hose from each side of the
bottom of the radiator. Install a plug in each hose
and a cap on each fitting.
27. Loosen and remove the thumb screws and flat
washers at the right side of the hydraulic oil
cooler.
28. Loosen and remove the cap screws, lock
washers, and flat washers that fasten the clamp
for the hose and the hinge for the hydraulic oil
cooler to the radiator.
29. Lower the hydraulic oil cooler.
Issued 1-99 Printed in U.S.A.

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