TK 55676-19-IM-EN
71
N
No
otte
e:: The system will be bled of air later by following the “A/C System Charging and APU Engine Start-up
Procedures”.
a. Add coolant removed earlier back into the tractor’s radiator.
b. D
DO
O N
NO
OT
T start the tractor’s engine at this time.
6. Install supplied coolant nameplate in a visible area near the tractor’s coolant fill cap.
Figure 40. APU Coolant Hoses Tee’d Directly Into Tractor’s Heater Hoses Shown
HEA
TER HOSE
ABA715-1
OUTLET
OUTLET
INLET
TRACTOR HEATER
CORE
INLET
NOTICE
This truck is equipped with auxiliary pow
er
unit. Coolant system must be bled after
main engine coolant system servicing.
HEA
TER
HOSE
6
APU HOSE
TRACTOR
ENGINE