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Case 621C - Page 25

Case 621C
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59. Loosen and remove the cap screw, lock washer,
and flat washer that fasten the adjusting strap for
the compressor. Push the compressor toward
the engine and remove the belt from the pulley of
the compressor.
60. Loosen and remove the nut from the bolt at the
base of the compressor.
61 . Remove the bolt, lock washer, and flat washer
that fasten the compressor to the mounting
bracket.
62. Use a piece of wire to tie the compressor so that
the compressor is out of the way.
63. If equipped with ether injection, disconnect the
tube fitting from the intake manifold.
64. If equipped with optional gauges, disconnect the
wire at the sender for the oil pressure gauge.
Disconnect the wire from the fuel shutoff
solenoid.
65. Disconnect the wire harness from the oil
pressure switch.
66. Loosen and remove the cap screw and lock
washer that fasten the clamp for the wire
harness to the engine.
67. Disconnect the wire harness.
68. Disconnect the throttle cable (1) from the fuel
injection pump, refer to Figure 1.
69. Loosen and remove the nuts, lock washers, flat
washers, and bolts that fasten the clamp for the
throttle cable. Move the throttle cable out of the
way.
70. Disconnect the fuel supply hose from the hand
primer pump. Install a plug in the hose.
Disconnect the hose from the fuel return line.
Install a plug in the hose.
71. Disconnect the heater hose. Install a plug in the
hose.
72. Loosen and remove the cap screw and lock
washer that fasten the clamp for the wire
harness to the right side of the flywheel housing
(5).
Bur 7-12150
2000-5
73. Connect acceptable lifting equipment to the
engine.
7 4. Loosen the bottom cap screw and loosen and
remove the top cap screw that fastens the cover
to the flywheel housing (5).
75. Remove the plastic plug from the flywheel
housing (5).
76. There are four 10 mm Allen head screws that
fasten the flex plates to the flywheel. Only one
Allen head screw at a time can be removed. The
flywheel must be rotated to align each Allen head
screw with the hole. Do the following procedure
to remove the four Allen head screws.
77. Install the CAS-1690 tool and rotate the flywheel
to align an Allen head screw with the hole below.
78. Loosen and remove the Allen head screw.
79. Repeat Steps 77 and 78 until all four Allen head
screws are removed.
80. Loosen and remove the cap screws that fasten
the panels under each side of the cab.
81 . Remove the panels.
82. Put a floor jack under the transmission.
83. Loosen and remove 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. Loosen and remove the
remaining cap screws and lock washers and nuts
and lock washers that fasten the transmission to
the flywheel housing.
84. Remove the cap from the hydraulic reservoir and
attach a vacuum pump to reservoir.
85. Start the vacuum pump.
86. Disconnect the brake pump inlet and outlet lines
at the brake pump. Cap and plug the hoses and
fittings.
87. Stop the vacuum pump.
88. Loosen and remove the nuts, lock washers, and
bolts that fasten the filler pipe to the frame.
Loosen the bottom clamp at the hose and
remove the filler pipe and the hose.
Issued 1-99 Printed in U.S.A.

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