TM 5-3810-307-24-1-2
Engine Coolant Connections Return to Engine. (Refer To Figures J-16 and J-18.) Route and
connect the return to engine coolant connections as follows:
a.
Locate the existing coolant hose, hose adapter, and 90-degree elbow fitting for the
engine coolant return located at the right hand front side of the diesel engine.
b.
Cleanly cut existing coolant return hose approximately 4-6" from existing hose adapter
and 90-degree elbow fitting on the engine.
c.
Connect the two ends of the existing coolant return hose to the straight section of the
0.75" steel wye adapter - P/N A-459 (1, Figure J-18) with the angled connection on the
wye adapter pointing downward and toward the left hand rear of the engine. Secure with
two hose clamps - P/N A-279 (2).
d.
Cut a section of new 0.75" coolant hose - P/N A-4860 (3) and insulation tubing (4) to a
length of 10-11' and slide insulation tubing over new coolant hose.
e.
Connect one end of the new 0.75" coolant hose - P/N A-4860 (3) to the angled
connection on the 0.75" steel wye adapter - P/N A-459 (1) and secure with hose clamp -
P/N A-279 (5).
f.
Route new coolant hose (3) toward the left hand side of the crane and the hydraulic
hoses routed along the left hand side of the diesel engine. Route the coolant hose along
the hydraulic hoses, toward the rear of the crane, and the hydraulic reservoir location.
Tag and leave the end of the coolant hose hang freely at the hydraulic reservoir location
for later connection to the hydraulic reservoir. Use tie wraps to secure new coolant hose
in the appropriate locations.
Engine Coolant Connections Coolant Out to Hydraulic Reservoir. (Refer To Figure J-16.)
Route and connect the Coolant Out to hydraulic reservoir connections as follows:
a.
Cut a section of new 0.75" coolant hose - P/N A-4860 and insulation tubing to a length of
9-10' and slide insulation tubing over new coolant hose.
b.
Connect one end of the new coolant hose to the COOLANT OUT fitting (upper) on the
coolant heater and secure with hose clamp - P/N A-279.
c.
Route the new coolant hose from the coolant heater, through vent opening of rear cowl
on engine compartment hood, into engine compartment, and downwards along left hand
side of transmission. Route the coolant hose along the hydraulic hoses, towards the
rear of the crane, and the hydraulic reservoir location. Tag and leave the end of the
coolant hose hang freely at the hydraulic reservoir location for later connection to the
hydraulic reservoir. Use tie wraps to secure new coolant hose in the appropriate
locations.
J-34 Change-1
