spring (27) over the threaded ends of the lifting bail and install the plain washers (26) and nuts (25). Position the rear half
cover and the front half cover (22) together, with the gasket (29) between them. Insert the cap screws (6) with
lockwashers (7) through the two cover flanges and install the nuts (19). Use care in alining the cover halves. Place the
gaskets (23, 24, and 28) on the crankcase. Set the covers on the gaskets and aline all the holes. Fasten the covers to the
crankcase with the hex head bolts (4) and lockwashers (5). Install the hex head bolts (20) and lockwashers (21) in the
front of the front half cover. Place the gasket (17) over the studs (18) in the top of the front half cover. Insert the complete
tachometer drive assembly over the studs and on the gasket. Put the lockwashers (8) over the studs and install the nuts
(9). Reinstall the slowdown assembly (par. 109e), unloader pilot (par. 108e), carburetor (par. 78b), intake manifold
(par. 120c), water pump (par. 195), distributor (par. 97b), and governor (par. 110b). Adjust the governor (par. 110c), the
carburetor (par. 77b) and/or unloader pilot (par. 107) if necessary.
217. Oil Pans
a. Removal (fig. 98).
(1) Remove the engine-compressor (par. 214).
(2) Unscrew three pipe plugs (12) from the lower oil pan (9). Drain out all the oil (fig. 16). Remove the oil filters
(16) as instructed in paragraph 42i (1).
(3) Pull out the dipstick (1), remove the O-ring (22), and screw out the pipe extention (21). Unscrew the 30 cap
screws (11) and lockwashers (10). Carefully drop the lower oil pan (9) and disconnect the oil line to the filter
cases. Remove the pipe plug (13) and oil filter seal (17). Carefully remove the end gaskets (18) and the
side gaskets (8).
(4) Insert a lifting hook in the lifting bail (fig. 95) and tighten the hoist cables to support the engine-compressor
during the time the upper oil pan is removed. Unscrew the 20 cap screws (7) and lockwashers (6). Carefully
lower the upper oil pan (4) and remove it from the engine-compressor. Use care, in removing the two oil pan
gaskets (3). Lift out the rear oil seal (2) and the front oil seal (5). It is not necessary to remove the special
nuts (20), or the gasket (19).
b. Inspection and Cleaning. Inspect both oil pans for breaks, or cracks. Replace a damaged oil pan. Replace all
gaskets. Refer to paragraph 42i (2) for the oil filter maintenance. Inspect the front and rear oil seals. Replace
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