TM 9-4520-251-14
4-26 PREHEATER (CONT)
Location/Item
Action
Remarks
INSTALLATION
15. Drain tube and
adapter body
16. Intake elbow
17. Preheater box
18. Carburetor
19. Plug buttons
20. Pipe elbow
21. Tube
22. Screen
23. Wick
24. Carburetor hose
and governor
link
25. Air Intake
tube
Install adapter body (27). Connect drain tube (25)
to adapter body (27). Tighten nut (26) securely.
Place gasket (24) on intake end of elbow (4). Align
gasket and elbow with holes in bottom of preheater
box (2), and drop two screws (18) through screw
holes. Insert gasket (23) between outlet end and
wall of preheater box (2), and install two screws (21).
Place gasket (22) over two screws (21) projecting
from back of preheater box (2). Install preheater box
on engine. Tighten screws (21) securely.
Place gasket (20) on carburetor (19) and attach
carburetor to preheater box (2) with two screws
(18). Tighten securely.
Reinstall plug buttons (14).
Install pipe elbow (13) in front wall.
Reconnect tube (11). Tighten nuts (12) sufficiently
to prevent leakage.
Replace screen (7) in preheater box (2).
Stuff wick (3) Into preheater box (2).
Reconnect hose (15) at quick-disconnect socket
(16). Reconnect governor link (17)
to carburetor (19).
Project air intake tube (10) through openings in
preheater box (2) and secure with screw (8) and
washer (9).
4-60
