TM 10-4320-344-24
2.21.40 Cowling Assembly Maintenance, Models 609-C and US636HCCD-1.
This task covers:
2.21.40.1 Disassembly
2.21.40.3 Assembly
2 .
2
1 .4 0 . 2 R e p a ir
INITIAL SETUP
Tools
General Mechanic’s Automotive
Tool Kit, Appendix B, Section
III, Item 1
Material/Parts
Lock Washers (TM 10-4320-344-24P)
Equipment Conditions
Pumping station shut down, TM 10-4320-
344-10.
Bulkhead Panel Assembly removed,
paragraph 2.12.15.
Battery disconnected, paragraph 2.15.3
(609-C) and paragraph 2.15.4
(US636HCCD-1).
Fuel Leakoff Return Line removed,
paragraph 2.21.7.
Fuel Injection Lines removed, paragraph
2 .
2
1 .
7.
V-Belt Guard removed, paragraph 2.21.11
(US636HCCD-1).
Equipment Conditions (Continued)
Oil Inlet Tube Assembly removed,
paragraph 2.21.23.
Oil Bypass Line removed, paragraph
2.21.25 (US636HCCD-1).
Oil Cooler removed, paragraph 2.21.29
(609-C) or 2.21.30 (US636HCCD-1).
Oil Breather Assembly removed, paragraph
2.21.31 (US636HCCD-1).
Air Outlet Frame removed, paragraph
2.21.35 (609-C).
General Safety Instructions
Do not work on equipment that is not
securely stabilized to prevent rolling
o r s l i d i n g.
Do not work on equipment with battery
connected.
Electrocution hazard is
present if battery is connected.
Do not work on equipment without follow-
ing standard shop safety practices.
This procedure applies to Model US636HCCD-1.
The procedure for Model 609-C is
s i m i l a r.
2.21.40.1 Disassembly.
a .
Unlatch, open and remove upper air cowling (Figure 2-155, 1).
b .
Remove lower air cowling (2) as follows:
(1) Remove five screws (3) and flat washers (4).
(2) Remove nut (5), lock washer (6), flat washer (7), bolt (8), and lower air
cowling (2) .
Discard lock washer (6).
c .
Remove three bolts (9), lock washers (10), flat washers (11), and rear stay
p l a t e ( 1 2 ) .
Discard lock washers (10).
d.
Remove cowling guide rail (13) as follows:
(1) Remove twelve screws (14) and lock washers (15).
Discard lock washers (15).
(2) Remove nut (16),
lock washer (17), two flat washers (18), and bolt (19), and
cowling guide rail (13) from front stay plate (20).
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