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 TM 55-1905-223-24-1
(2) Remove four machine bolts (34), washers (41), lockwashers (42), and hexagon nuts (40).
(3) Lift engine coolant heater (44) from engine heater bracket (39).
c.
Remove pressure switch (29).
(1) Tag and disconnect electrical wiring.
(2) Remove nonmetallic hose (26 or 33). Remove hexagon head capscrew (24) and lockwasher (23)
to remove loop clamp (22).
(3) Remove pipe reducer (27) and tube-to-hose elbow (25).
(4) Remove four hexagon head capscrews (32), lockwash rs (31), special spacers (30) and hexagon
e
nuts (28).
(5) Remove pressure switch (29).
d. Remove engine heater bracket (39).
(1) Remove four hexagon head capscrews (35), lockwashers (36), flat washers (37) and hexagon nuts
(38).
(2) Remove engine heater bracket (39).
REPAIR
Repair consists of replacing damaged nonmetallic hoses.
REPLACEMENT
a. Replace engine heater bracket (39).
(1) Position engine heater bracket (39).
(2) Install four hexagon nuts (38), flat washers (37), ockwashers (36) and hexagon capscrews (35).
l
Secure until tight.
b. Replace pressure switch (29).
(1) Position pressure switch (29) on engine heater bracket (39).
(2) Install four hexagon nuts (28), special spacers (30), lockwashers (31) and hexagon head capscrews
(32). Secure until tight.
(3) Install pipe reducer (27) and tube-to-hose elbow (25).
(4) Install nonmetallic hose (26 or 33). Install loop clamp (22), lockwasher (23), and hexagon head
capscrew (24).
(5) Connect electrical wiring. Remove tags.
2-93
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