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![]() TM5-4110-234-14 
TO 40R7-5-7-1 
(8) 
Remove the 3 upper and 4 lower sets of cap screws and lock washers and carefully remove the fuel tank 
through the left side door opening. 
NOTE 
It may be necessary to push the refrigeration line from the bottom of the sight glass into the heat 
shield wall slightly to gain clearance. 
(9) 
Disconnect the engine exhaust at the connection between the flexible exhaust pipe and the exhaust manifold. 
(See fig. 4-28) 
(10)  Tag and disconnect the wires to the engine. This includes the wires to the choke, the alternator, the oil 
pressure switch, the starter and solenoid, and ground wires. 
(11) 
Loosen the four gasoline engine bolts. There is an access slot on the lower left front of the cabinet for the 
front bolts. 
(12)  Use a 3/4 inch socket and socket wrench with an extension and turn the engine mount adjusting screws 
located under the compressor mount to move the engine and release belt tension. Be sure you turn both screws the same 
number of full turns. 
(13)  Remove the belts from the engine pulley. Tie or tape the belts up out of the way where they will not have oil 
or fuel spilled on them. 
(14) 
Remove the four sets of engine attaching hardware. 
The engine weighs 148 pounds (67.0 kg). Use adequate personnel or lifting devices. 
(15) 
Lift the engine from the frame. 
(16)  If engine is to be replaced with a new one, remove the exhaust manifold and install them on the replacement 
engine. See paragraph 4-63 for choke installation and adjustment. 
e. Installation. 
The engine weighs 148 pounds (67.0 kg). Use adequate personnel or lifting devices. 
(1) 
Using a suitable lifting device, lower the engine to the mounting base and aline the holes. 
(2) 
Loosely install the four sets of mounting hardware. 
(3) 
Place the two belts from the compressor pulley on the engine pulley. 
(4) 
Use a 3/4 inch socket and socket wrench with an extension and turn the engine mount adjusting screws 
located under the compressor mount to move the engine. Proper belt tension is a deflection of 1/2 inch (1.3 cm) midway 
between the pulleys. 
4-74 
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