TM 5-3810-307-24-1-2
Engine Coolant Connections Supply from Engine. (Refer To Figures J-16 and J-17.) Route and
connect the supply from engine connections as follows:
a.
Drain the engine coolant from the diesel engine in accordance with the Technical
Manual, TM 5-3810-307-24-1-1.
b.
Loosen the hose clamp securing the existing coolant supply hose to the existing hose
fitting on the center rear of the diesel engine.
c.
Remove the existing hose and 90-degree elbow fittings from the center rear of the diesel
engine.
d.
Place Loctite 565 on both threads of the 0.75" male NPT X 0.5" male NPT close nipple
#112B-12 - P/N 501-602-0027 (1, Figure J-17), install in the center rear of the diesel
engine, and fully tighten.
e.
Install 0.75" NPT brass tee - P/N 809 602-0004 (2) onto the 0.75" male NPT X 0.5" male
NPT close nipple #112B-12 - P/N 501-602-0027 (1). Tighten until tee is perpendicular to
carrier deck and outlets facing left and right.
f.
Place Loctite 565 on threads of the two 0.75" male NPT X 0.5" hose adapter - P/N CA0
11 002 (3), install in the 0.75" NPT brass tee - P/N 809 602-0004 (2), and fully tighten.
g.
Reinstall existing coolant hose onto the right hand 0.75" male NPT X 0.5" hose adapter -
P/N CA0 11 002 (3) and tighten using existing clamp.
h.
Cut a section of new 0.75" coolant hose - P/N A-4860 (4) and insulation tubing (6) to a
length of 30-32 " and slide insulation tubing over new coolant hose.
i.
Connect one end of the new 0.75" coolant hose - P/N A-4860 (4) to the COOLANT IN
fitting (lower) on the coolant heater and secure with hose clamp - P/N A-279 (5).
j.
Insert other end of coolant hose (4) through vent opening of rear cowl on engine
compartment hood, route to the 0.75" male NPT X 0.5" hose adapter - P/N CA0 11 002
(3), and cut new coolant hose to appropriate length.
k.
Connect the other end of new coolant hose (4) to the 0.75" male NPT X 0.5" hose
adapter - P/N CA0 11 002 (3) and secure with hose clamp - P/N A-279 (7).
J-32 Change-1
