TM 9-4520-260-13
5-3. CARBURETOR
This task covers:
a. Removal
c. Cleaning
e. Testing
g. Installation
b. Disassembly
d. Inspection
f. Reassembly
INITIAL SETUP
Tools
Equipment Condition
Tool Kit, Service Refrigeration Unit
Power disconnected and fuel supply turned off.
(Item 1, Appendix B, Section III)
Top and side covers removed (para 4-10).
Material/Parts
General Safety Instructions
Dry cleaning solvent
(Item 6, Appendix E)
Diesel fuel
(Item 7, Appendix E)
The heater ignition system contains dangerous
Lubricant
voltages which can cause severe electrical shock.
(Item 8, Appendix E)
Be sure to disconnect power before any mainte-
Sealing compound
nance actions.
(Item 10, Appendix E)
Corrosion preventive compound
(Item 5, Appendix E)
Clean parts in a well-ventilated area. Avoid inha-
Tags
lation of solvent fumes and prolonged exposure of
(Item 13, Appendix E)
skin to cleaning solvent. Wash exposed skin
Preformed packing
thoroughly. Dry cleaning solvent is potentially
(Item 7, Appendix H)
dangerous to personnel Do not use near open
Preformed packing
flame or excessive heat. Flash point is 140
F
( Item 8, Appendix H)
(60 ).
C
Jet gasket
(Item 5, Appendix H)
REMOVAL (Figure 5-1)
1. Tag (Item 13, Appendix E) and disconnect the electrical lead (1) for the preheat thermostat (2) and solenoid leads (3
and 4) from electrical control unit (ECU) (5).
2. Disconnect compression nut (6) of fuel hose (7) at connector (8). Remove connector (8). Disconnect overflow hose
(9) from overflow fitting (10) on carburetor (12).
3. Remove four screws (11) that secure carburetor (12) to burner head. Remove the carburetor carefully so any
residual fuel in float bowl does not spill.
5-6
