TM 5-3895-373-20
CHAPTER 14
BURNER MAINTENANCE
Para
Page
General Maintenance Procedures..............................................................................................
14.1
14-1
Replace Burner Chamber and Fuel Spray Nozzle .....................................................................
14.5
14-27
Replace Burner and Fuel Spray Fuel Pump and Motor..............................................................
14.2
14-2
Replace Burner Glow Plug .........................................................................................................
14.7
14-57
Replace/Repair Blower Motor.....................................................................................................
14.8
14-59
Replace/Repair Burner and Fuel Spray Fuel Filter Assembly....................................................
14.3
14-9
Replace/Repair Burner Fuel Solenoid Valve..............................................................................
14.6
14-50
Replace Screed Fuel System Hoses and Fittings ......................................................................
14.4
14-15
14.1.
GENERAL MAINTENANCE PROCEDURES.
All unit level maintenance shall be performed in
accordance with good and safe shop practices. Observe
the following general instructions and requirements when
performing screed burner maintenance.
a. Areas of the paving machine exposed to
paving
material
buildup
require
cleaning
prior
to
disassembly. Use hammers, chisels, and scrapers to
remove thickest sections of buildup. If available, use
heater gun to soften deposits adhering to components;
remove softened buildup with putty knife. When heating
paving
material,
keep
second
person
with
fire
extinguisher at hand and avoid overheating. If heater
gun is not available, use solvent or fuel washdown
system to soften paving material.
b. Thoroughly clean hoses and fittings before
disconnecting. Always plug or cap off disconnected
fittings to prevent dirt and contaminants from entering the
system. Failure to clean hoses and fittings and to plug or
cap open fittings may result in system contamination and
equipment damage.
c. Always tag mating connectors and fittings
before disconnecting. Tagging of mating connectors and
fittings will ease reassembly and reduce assembly
errors.
d. Use a backup wrench when loosening or
tightening inline fittings. Using a backup wrench will
prevent unnecessary damage to attached lines and/or
smaller fittings.
e. When removing tie wraps from hoses and
wiring, note or mark locations and anchor points. The
proper location and installation of tie wraps will prevent
undue chafing of hoses and wiring.
f. Thread locking compound is used with most
threaded fasteners. If a threaded fastener will not break
loose, heat threaded area of fastener from 500° to 600°F
(232° to 3150C) with heater gun. If the special solvent
used to remove thread locking compound from screw
threads fails to remove buildup, discard fastener.
g. Inspect removed components for wear or
damage. Replace damaged parts. Replace used
lockwashers, selflocking nuts, seals, gaskets, and
preformed packings.
h. Inspect all removed fasteners for thread
damage. If thread damage is found, replace fastener.
Replace flat washers if galled or bent. Use screw
extractor set (Item 15, Appendix E) to remove broken
studs or screws.
i. Use only authorized replacement parts. Refer
to TM 53895-373-24P, Repair Parts and Special Tools
List (RPSTL) for authorized replacement parts.
j. Torque values cited in the text apply to
modified SAE Grade 8 fasteners at required clamping
loads.
k. Observe all warnings and cautions. Wear
protective clothing and equipment as specified. Observe
the Safety and Hazard Warnings provided in TACOM
technical bulletin TB 43-0216.
14-1
